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ell- Task 7, Final,.Product Jw Ar i #0 0.1 141 @g A All `4 W A V-7 1990 Distribution of Submerged Aquatic L, Vegetation in Jo- W` the Chesapeake Bay QK 122.8 D57 1990 v c.3 Virginia Institute of Marine Science School of Marine Science The College of William and Mary 'Af@ 77* 00, 7 @-o o 75-10d U-, BALTI ORE;@ X 390 39- WASHI GTON &4 y od 00, ww@ V! . ..... NL"@- 38- 00, 00, Lu Lti 370 3-0 od 0 10 20 30 00, NAUTICAL MILES RFOL 77000, 76-100' 75;FOO'- I- Distribution of Submerged Aquatic Vegetation in the Chesapeake Bay and Tributaries and Chincoteague Bay - 1990 by Robert J. Orth, Judith F. Nowak, Adam A. Frisch', Kevin P. Kiley, and Jennifer R. Whiting Virginia Institute of Marine Science School of Marine Science College of William and Mary Gloucester Point, VA 23062 'Council on the Environment Virginia EcoMAPS System 202 N. Ninth Street, Suite 900 Richmond, VA 23219 Funded by: U.S. Environmental Protection Agency (Grant X00346502-0) National Oceanographic Atmospheric Administration (Grant No. NA90AA-H-CZ796) Virginia Institute of Marine Science/School of Marine Science Maryland Department of Natural Resources (C225-91-004) U.S. Fish and Wildlife Service (14-16-0005-90-31) Allied-Signal Foundation IJ Final Report Submitted to: U.S. Environmental Protection Agency Chesapeake Bay Program Office Annapolis, MD 21403 September, 1991 to V3 Cover Photograph: Eelgrass (Zostere marina) beds with blue crab (Pallinectes sapidus) In lower York River, Virginia. (Photograph by Curtis Harper, Virginia Institute of Marine Science, School of Marine Science, College of William and Mary.) Inside Cover: Map of the Chesapeake Bay and tributaries. Ci CONTENTS Page TABLES ....................................... iii FIGURES ....................................... iv EXECUTIVE SUMMARY .............................. vii ACKNOWLEDGEMENTS ............................... xii INTRODUCTION ..................... .............. 1 SAV SPECIES .................................... 2 METHODS ...................................... 3 Introduction ................................... 3 Aerial photography ................................ 3 Mapping process ................................ 6 SAV perimeter digitization and area calculation ............... 10 Tests of precision and accuracy ........................ 12 Calculation of SAV bed mean area and choice of representative SAV bed . 12 Standard operating procedures ........................ 13 Conversion of SAV perimeter points from XY centimeters to Universal Transverse Mercator (UTM) coordinates in ARCANFO format ....... 13 Organizational provinces for analysis ..................... 14 Ground truth and other data bases . . . . . . . . . . . . . . . . . . . . . . 19 RESULTS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Data presentation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 1990 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Upper Bay Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22 Middle Bay Zone . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . 40 Lower Bay Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40 Chincoteague Bay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41 Discussion of sections arranged within zones . . . . . . . . . . . . . . . . . 41 Upper Bay Zone . . . . . . . . . . . . . . . . ... . . . . . . . . . . . . . . 41 Susquehanna Flats (Section 1) . . . . . . . . . . . . . . . . . . . . . . . . 41 Upper Eastern Shore (Section 2) . . . . . . . . . . . . . . . . . . . . . . . 41 Upper Western Shore (Section 3) . . . . . . . . . . . . . . . . . . . . . . . 44 Chester River (Section 4) . . . . . . . . . . . . . . . . . . . . . . . . . . . . 44 Middle Bay Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . 44 i 0 0 0 0 0 0 0 a C Property Of NOAA Coastal Services Centw Library 6 CONTENTS (CONTINUED) RESULTS (continued). Page Central Western Shore (Section 5) ...................... 44 Eastern Bay (Section 6) ............................ 44 Choptank River (Section 7) ........................... 49 Patuxent River (Section 8) ........................... 49 Middle Western Shore (Section 9) . . . . . . . . . . . . . . . . . . . . . . . 49 Lower Potomac River (Section 10) . . . . . . . . . . . . . . . . . . . . . . . 49 Upper Potomac River (Section 11) . . . . . . . . . . . . . . . . . . . . . . . 54 Middle Eastern Shore (Section 12) . . . . . . . . . . . . . . . . . . . . . . 54 Mid-Bay Island Complex (Section 13) . . . . . . . . . . . . . . . . . . . . . 57 Lower Bay Zone . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57 Lower Eastern Shore (Section 14) . . . . . . . . . . . . . . . . . . . . . . . 57 Reedville Region (Section 15) . . . . . . . . . . . . . . . . . . . . . . . . . 57 Rappahannock River Complex (Section 16) . . . . . . . . . . . . . . . . . . 61 New Point Comfort Region (Section 17) . . . . . . . . . . . . . . . . . . . . 61 Mobjack Bay Complex (Section 18) . . . . . . . . . . . . . . . . . . . . . . 61 York River (Section 19) . . . * .. . . . . . . . . . . . . . . ? . . . . . . . . . 1 65 Lower Western Shore (Section 20) . . . . . . . . . . . . . . . . . . . . . . . 65 James River (Section 21) . . . . . . . . . . . . . .... . . . . . . . . . . . . . 65 Chincoteague Bay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69 LITERATURE CITED . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71 APPENDICES . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 73 A. Species of submerged aquatic plants found in the Chesapeake Bay and tributaries . . . . . . . . . . . . . . . . . . . . . . 74 B. Latitude and longitude coordinate points defining the 21 major Chesapeake Bay sections and Chincoteague Bay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 86 C. Topographic quadrangles for the Chesapeake Bay and Chincoteague Bay showing distribution, abundance, and ground truthing of SAV in 1990 . . . . . . . . . . . . . . . . . . . . 90 D. Number of square meters of SAV for individual beds and totals for density categories for each topographic quadrangle in 1990 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 197 E. 1990 SAV ground truth data listed by topographic quadrangle and by SAV bed, cross referenced with 1989 SAV beds . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 225 ii TABLES Number Page 1 Guidelines for acquisition of aerial photographs . . . . . . . . . . . . . . . 5 2 List of USGS 7.5 minute topographic quadrangles for the Chesapeake Bay and Chincoteague Bay SAV study areas and corresponding code numbers . . . . . . . . . . . . . . . . . . . . 8 3 Area descriptions for each of the 21 major sections in the Chesapeake Bay SAV study area . . . . . . . . . . . . . . . . . . . . . . . 16 4 Total area of SAV in hectares by USGS 7.5 minute topographic quadrangle for 1989 and 1990 . . . . . . . . . . . . . . . . . . 23 5 Number of hectares of SAV in 1989 and 1990 for the 21 major sections and three zones of the Chesapeake Bay, and for Chincoteague Bay . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 6 Number of square meters of SAV in 1990 for each quadrangle of the 21 major sections in the Chesapeake Bay and of Chincoteague Bay . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30 FIGURES Number Page 1 Map of Chesapeake Bay and tributaries with Upper, Middle, and Lower zones and locations of all SAV beds in 1990 . . . . . . . . . . . . . . viii 2 Total hectares SAV for the Upper, Middle, and Lower zones of the Chesapeake Bay in 1990 . . . . . . . . . .. . . . . . . I. . . . . . . ix 3 Total hectares SAV in 1990 by section of the Chesapeake Bay . . . . . . . x 4 Map of Chesapeake Bay, its tributaries, and Chincoteague Bay with approximate locations of flight lines for 1990 SAV photo- graphy . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 5 Location of USGS 7.5 minute topographic quadrangles in the Chesapeake Bay, its tributari es, and Chincoteague Bay with corresponding code numbers . . . . . . . ... . . . . . . . . . . . . . 7 6 Crown density scale used for determining density of SAV beds: (1) very sparse, 0-10%; (2) sparse, 10-40%; (3) moderate, 40-70%; (4) dense, 70-100% . . . . . . . . . . . . . . . . . . . . . . . . . . 11 7 Location of Upperi Middle, and Lower zones of the Chesapeake Bay and the 21 major sections -used for delineation of SAV distribution patterns . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 8 Distribution of SAV in the Susquehanna Flats (Section 1) . . . . . . . . . . 42 9 Distribution of SAV in the Upper Eastern Shore (Section 2) . . . . . . . . . 43 10 Distribution of SAV in the Upper Western Shore (Section 3) . . . . . . . . 45 11 Distribution of SAV in the Chester River (Section 4) . . . . . . . . . . . . . 46 12 Distribution of SAV in the Central Western Shore (Section 5) . . . . . . . . 47 13 Distribution of SAV in the Eastern Bay (Section 6) . . . . . . . . . . . . . 48 14 Distribution of SAV in the Choptank River (Section7) . . . . . . . . . . . . 50 15 Distribution of SAV in the Patuxent River (Section 8) . . . . . . . . . . . . 51 iv FIGURES (continued) Number Page 16 Distribution of SAV in the Middle Western Shore (Section 9) ........ 52 17 Distribution of SAV in the Lower Potomac River (Section 10) . . . . . . . . 53 18 Distribution of SAV in the Upper Potomac River (Section 11) . . . . . . . . 55 19 Distribution of SAV in the Middle Eastern Shore (Section 12) . . . . . . . 56 20 Distribution of SAV in the Mid-Bay Island Complex (Section 13) . . . . . . 58 21 Distribution of SAV in the Lower Eastern Shore (Section 14) . . . . . . . 59 22 Distribution of SAV in the Reedville Region (Section 15) . . . . . . . . . . 60 23 Distribution of SAV in the Rappahannock River Complex (Section 16) . . . 62 24 Distribution of SAV in the New Point Comfort Region (Section 17) . . . . . 63 25 Distribution of SAV in the Mobjack Bay Complex (Section 18) . . . . . . . 64 26 Distribution of SAV in the York River (Section 19) . . . . . . . . . . . . . . 66 27 Distribution of SAV in the Lower Western Shore (Section 20) . . . . . . . . 67 28 Distribution of SAV in the James River (Section 21) . . . . . . . . . . . . . 68 29 Distribution of SAV in the Chincoteague Bay . . . . . . . . . . . . . . . . 70 30 Illustration of Chara spp. (Muskgrass) . . . . . . . . . . . . . . . . . . . . 75 31 Illustration of Nitella spp. (Stonewort) . . . . . . . . . . . . . . . . . . . . 76 32 Illustration of Najas guadalupensis (Southern naiad) . . . . . . . . . . . . 77 33 Illustration of Vallisneria americana (Tapegrass) . . . . . . . . . . . . . . 78 34 Illustration of Egerja spp. (Water-weed) . . . . . . . . . . . . . . . . . . . 79 35 Illustration of Hydrilla verticillata (Hydrilla) . . . . . . . . . . . . . . . . 80 v FIGURES (continued) Number Page dh 36 A comparison: illustrations of Hydrilla verticillata, Elodea canadensis, and Egeria spp . . . . . . . . . . . . . . . . . . . . . . . 81 37 A comparison: illustrations of Hydrilla verticillata, Elodea canadensis, and Egeria spp . . . . . . . . . . . . . . . . . . . . . . . 82 38 Illustration of Ceratophyllum demersum (Coontail) . . . . . . . . . . . . . 83 39 Illustration of Trapa natans (Water chestnut) . . . . . . . . . . . . . . . . 84 40 Illustration of Myriophyllum spicatum (Eurasian watermilfbil) . . . . . . . 85 vi EXECUTIVE SUMMARY The distribution of submerged aquatic vegetation, principally rooted vascular macrophytes, in the Chesapeake Bay, its tributaries, and Chincoteague Bay was mapped during May to October 1990 at a scale of 1:24,000 using black and white aerial photography. SAV bed perimeter information was digitized and stored in a computerized data base. Ground truth information was obtained from the U. S. Fish and Wildlife Service, the University of Maryland Hom Point Environmental Laboratories, the Metropolitan Washington Council of Governments, Maryland-National Capital Parks and Planning Commission - Patuxent River Park, the Maryland Department of Natural Resources, Harford Community College, Essex Community College SAV Research Group of Baltimore County, and the College of William and MaryNirginia Institute of Marine Science/School of Marine Science. Citizen support via the U. S. Fish and Wildlife Service and Chesapeake Bay Foundation, as well as the Maryland Charterboat Association via the Maryland Department of Natural Resources Watermen's Assistance Program, provided additional ground truth information. In 1990, the Chesapeake Bay had 24,313 hectares of SAV, compared to 24,138 hectares in 1989, with 2,353 hectares (10%), 11,328 hectares (47%), and 10,632 hectares (44%) occurring in the Upper, Middle, and Lower Bay zones, respectively (Figs. 1, 2, and 3). In 1990 seventy-five percent (1,774 hectares) of the SAV within the Upper Bay zone was located in the Susquehanna Flats (Section 1). Eight species of SAV were documented by ground truth surveys in this section, with Myriophyllum spicatum being dominant. A recently introduced exotic species, Hydrilla verticillata, was found in the Flats but occurred in small isolated beds. Overall abundance of SAV declined from 1989 (1,945 hectares) and 1987 (2,219 hectares) levels , but the density of beds increased slightly from 1989. Ninety-two percent of all SAV beds in the Flats were classified as very sparse (0-10% coverage), and 5% of beds were classified as dense (70-100% coverage). This is a slight improvement over 1989 coverage when 95% were very sparse and no beds were classified as dense. In the Upper Eastern Shore (Section 2) there were 421 hectares of SAV (113 hectares more than in 1989) located principally in the Elk and lower Sassafras rivers, and Swan, Stillpond, and Chum creeks, with many of the same species as reported in the Susquehanna Flats section. The Upper Western Shore (Section 3) had 90 hectares of SAV, primarily M. spicatum and Vallisnerla americana, concentrated in Saltpeter and Dundee creeks. This is an increase of 52 hectares over 1989 and approaches the 1987 level of 117 hoctareg. In the Chester River (Section 4) SAV abundance (67 hectares) was down 100 hectares from 1989 and 448 hectares from 1987. 8AV was most abundant adjacent to Eastern Neck, Eastern Neck Island, and in the lower Chester River. In this region Rappia maritima was the most abundant of seven species reported. In 1990 forty-eight percent (5,405 hectares) of the SAV in the Middle Bay zone was found in the Mid-Bay Island Complex (Section 13) which includes the broad shoal area between Smith and Tangier Islands. This is an increase of 206 hectares over 1989. The two dominant species were R. maritima and Zostera marina. Twenty percent (2,287 hectares) of the SAV in this zone was present in the Middle Eastern Shore (Section 12), primarily in the Barren Island-Honga River area, the Big and Little Annemessex rivers, and the lower section of the Manokin River, with R. maritima being the dominant species reported. Little or no SAV was mapped or vii 3940. 0 - -' I I I I I I I I I I I SUSQUEHANNA R CHESAPEAKE BAY Uj CL PATAPSCO R. 3 9 0. 0 CHESTER R. dL LU 3840. 0 P TU)k(Et4T j R. POTOMAC 3810. 0 R.. 3740.0 A, LU 3710. 0 @y 3640. 0+ 0 0 0 0 Figure 1. Map of the Chesapeake Bay and tributaries with Upper, Middle, and Lower zones and locations of all SAV beds in 1990. (SAV is shown in red. Latitude and longitude are in decimal degrees along the vertical and horizontal axes, respectively.) viii HECTARES OF SAV IN EACH ZONE OF THE CHESAPEAKE BAY 1990 10000 9000 8000 7000 cn bi W CA Boca - Z Uj 0 Uj > 4000 - C3 0 3 a 00- 2 00 0 1 0 0 0- 0 UPPER UIDDLE LOWER Figure 2. Total hectares of SAV for the Upper, Middle, and Lower zones of the Chesapeake Bay in 1990. (Refer to Figures 1 and 7 for zone locations.) ix w Hectares of SAV in 1990 z by Section 3000 4000 UPPER MIDDLE LOWER ZONE ZONE ZONE 41 3000 U cm 2000 L) 1000 Ion 0 1 2 3 4 5 6 7 a 2 1 0 11 11 13 14 15 Is 17 18 12 20 21 SECTION NUMBER Figure 3. Total hectares of SAV in 1990 by section of the Chesapeake Bay. (Refer to Figure 7, Table 3, and Appendix B for section locations and boundaries.) x reported from the Central Western Shore (Section 5), Middle Western Shore (Section 9), and Patuxent River (Section 8). The Middle Bay zone also includes the entire Potomac River, where 3,054 hectares of SAV were present in 1990. SAV was concentrated in two distinct regions: 1. the Upper Potomac River (Section 11) with 2,522 hectares, where Hydrilla verticillata remained the numerically dominant species (eight other species were reported by the COG, VIMS, USFWS, and Citizen's surveys); and 2. the upper portion of the Lower Potomac River (Section 10) with 532 hectares, including Nanjemoy Creek and Port Tobacco River, with V. americana and M. spicatum being the most frequently reported species. Although the total abundance of SAV in the Upper Potomac section increased from 1989 by 524 hectares, it decreased in the Lower Potomac section by 83 hectares. SAV in the Eastern Bay (Section 6) decreased 443 hectares from 1989 to a total of 389 hectares in 1990, while in the Choptank River (Section 7) it declined 672 hectares from 1989 to a total of 193 hectares in 1990. Distribution and abundance in 1990 in the Lower Bay zone were similar to 1989. Forty-five percent (4,829 hectares) of SAV in this zone was found in the Lower Eastern Shore (Section 14) around the Fox Islands and the mouths of major creeks (i.e. Cherrystone Inlet and Hungars, Mattawoman, Occahannock, Craddock, Pungoteague, and Onancock creeks. Along the western shore of the Chesapeake Bay, SAV was abundant in Mobjack Bay (Section 18) (16% of SAV in the Lower Bay zone), in the lower York River (Section 19) (7% of SAV in the Lower Bay zone), and in the Lower Western Shore (Section 20), specifically Back River and Drum Island Flats area adjacent to Plum Tree Island (17% of SAV in the Lower Bay zone). There were 609 hectares of SAV mapped in the Reedville Region (Section 15) in 1990, a 24% increase over 1989. There were 357 hectares of SAV identified in 1990 in the New Point Comfort Region (Section 17) compared to 346 hectares in 1989. Both R. maritima and Z. marina were abundant throughout this zone. SAV abundance was down slightly from 1989 in both the Piankatank and Rappahannock rivers (Section 16). Ruppia maritima was the dominant species in those rivers, with Zostera marina also present as a result of previously successful transplant efforts. The James River (Section 21) had less than 3 hectares of SAV in 1990, which is one hectare less than in 1989. SAV in Chincoteague Bay increased slightly in distribution from 1989, with 2,494 hectares mapped in 1990. All of the SAV consisted of R. maritima and Z. marina, and was located along the eastern side of the bay behind Assateague Island. xi ACKNOWLEDGEMENTS We would like to gratefully acknowledge all federal and state agencies who financially supported this project: the U. S. Environmental Protection Agency (USEPA); the U. S. Fish and Wildlife Service (USFWS); the Virginia Council on the Environment's and MD-DNR!s Coastal Resources Management Program of the National Oceanographic and Atmospheric Administration (NOAA), under the Coastal Zone Management Act of 1972 as amended by the Office of Ocean Coastal Resource Management (OCRM); the Maryland Department of Natural Resources (MD-DNR); and the Virginia Institute of Marine Science, School of Marine Science, College of William and Mary (VIMS). Also, we thank Allied - Signal, Inc. for providing supplemental funding for this work. Additionally, the Virginia Council on the Environment EcoMAPS Program provided ARCANFO expertise, training, and the use of their SUN Micro Systems Spark Station 2 workstation for converting 1990 SAV digital data to ARCANFO 5.0.1 format. Acknowledgement would not be complete without commendation for the groups which provided ground truthing of SAV beds which was used in conjunction with interpretation of the 1990 photography. USFWS conducted a survey and, with the Chesapeake Bay Foundation (CBF), also organized citizens to report locations and species composition of grassbeds around the bay. In addition, members of the Maryland Charterboat Association were funded by the MD-DNR to participate in the ground truthing program and contributed valuable information on location and species composition of SAV beds in Maryland waters. Bill Dennison of the University of Maryland Horn Point Environmental Laboratories (HPEL), Stan Kollar of Harford Community College (HCC), and the Essex Community College SAV Research Group of Baltimore County, Maryland provided ground truth information for certain specific regions of the Maryland portion of the Bay. The Metropolitan Washington Council of Governments (COG) provided ground truth information from the Potomac River. The Maryland-National Capital Parks and Planning Commission provided ground truth data for the Patuxent River Park. Ken Moore, Lori Morris, Sheryl Robertson, Sharon Dewing, Gene Silberhorn, Curtis Harper, Betty Berry, Jill Goodman, Art Schwartzchild, Chris Rowe, Beth Cockey, and Cindi Horton of VIMS provided ground truth information for the lower bay. The production of this report required the dedication of numerous scientists, technicians, artists, photographers, and others. The following people deserve a note of thanks: Silvia Terziotti (Virginia Council on the Environment) for developing computer software necessary for conversion of digital data to ARCANFO 5.0.1 format; Rich Batiuk, USEPA-Chesapeake Bay Program Office; Linda Hurley and Kathyrn Reshetiloff, USFWS; David Bleil, MD-DNR; and Christina Pompa (CBF). We are especially grateful to the dedicated VIMS personnel who contributed greatly to the production of this report: Leah Nagey for her tremendous assistance and perseverance in digitizing most of the maps, editing the digital data files, mapping ground truth information, and for her constant, careful efforts to maintain high quality control; Pat Barthle for computer programming and computer graphics; Diane Bowers, Harold Burrell, Kay Stubblefield, Sylvia Motley, and Billy Jenkins for graphic art work on the SAV maps reproduced in Appendix C, and for figure preparation, photography, and printing; Ruth Hershner for typography; Pat Hall for xii computer services; Gary Anderson for statistical analysis of the 1990 digital data in ARCANFO 5.0.1 format for quality assurance purposes. Michael Upchurch, Virginia Division of Mineral Resources, Randy Karin, Maryland Geological Survey, Claud Summers, USGS, National Cartographic Information Center (NCIC), Mid-Continent Mapping Center, and Craig Breen, Professional Blueprinters, Inc., Newport News, VA, were helpful in the procurement of high quality topo maps and map copies. Architectural and Engineering Supply Company, Richmond, VA, did the high quality photo-reductions of the maps reproduced in Appendix C. Air Photographics, Inc. conducted the aerial photographic missions and was responsible for the high quality aerial photographs. Aquatic plant illustrations were provided by the Information Office of the University of Florida, Institute of Food and Agricultural Sciences, Center for Aquatic Plants (Gainesville) and were drawn by Laura Line Reep, biological illustrator. xiii qW INTRODUCTION Monitoring programs of living resources are being increasingly recognized as critical to contributing to our understanding fluctuations in abundance of these resources. In the Chesapeake Bay, monitoring submerged aquatic vegetation has been recognized as necessary to assess the success of the bay cleanup efforts. The baywide decline of SAV in the 1960's and 1970's followed by relatively rapid annual changes from 1984 through 1990 (Orth et al., 1985, 1986, 1987, 1989; Orth and Nowak, 1990), supports the suggestion that SAV may be a good barometer of the health of the bay (Orth and Moore, 1988). The rapid changes observed in the late 1980's supported the need for an annual aerial monitoring program. Indeed, the simultaneously reported annual increases and decreases at different locations in one tributary of the bay, the Potomac River, has allowed scientists to more accurately determine the relative role of different factors controlling SAV abundance in this system (Carter and Rybicki, submitted). SAV communities in the entire Chesapeake Bay and tributaries have been photographed and mapped, and the areas of the beds have been digitized in 1978, 1984, 1985, 1986, 1987, 1989, and 1990 (Orth et al., 1979; Anderson and Macomber, 1980; Orth et al., 1985, 1986, 1987, and 1989; Orth and Nowak, 1990). Portions of the upper bay were mapped and digitized in 1979, and the lower bay was mapped and digitized in 1980 and 1981. The bay shoreline was photographed in 1988 but was not mapped. Sections of the lower bay were mapped and digitized in 1971 and 1974. The goal of the 1990 work was to continue the annual monitoring of SAV on a baywide basis using aerial photographic methods. Appropriate ground truth was used to substantiate presence or absence of SAV in particular sections., SAV SPECIES The term "submerged aquatic vegetation" for the purpose of this report encompasses 19 taxa from 10 vascular macrophyte families and 3 taxa from 1 freshwater macrophytic algal family, the Characeae, but excludes all other algae, both benthic and planktonic, which occur in the Chesapeake Bay and tributaries (Appendix A; Figs. 30-40). For instance, benthic marine algae, including many macrophytes, sometimes co-occur in the same beds with vascular plants, even as epiphytes on vascular plants (Humm, 1979). Although outside the scope of this study, the algal component does constitute a portion of the SAV biomass in the Chesapeake Bay and tributaries. However, except for the Characeae, this study has not attempted to identify, delineate or discuss the algal component of the vegetation nor its relative importance in the flora. Ten species of submerged aquatic vegetation exclusive of the algae are commonly found in the Chesapeake Bay and its tributaries. Zostera marina (eelgrass) is dominant in the lower reaches of the bay. Myriophyllum spicatum (Eurasian watermilfbil), Potamogeton pectinatus (sago pondweed), Potamogeton perfibliatus (redhead grass), Zannichellia palustris (horned pondweed), Vallisneria americana (wild celery), Elodea canadensis (common elodea), Ceratophyllum demersum (coontail) and Najasguadalupensis (southern naiad) are less tolerant of high salinities and are found in the middle and upper reaches of the bay (Stevenson and Confer, 1978; Orth et al., 1979; Orth and Moore, 1981, 1983). Ruppia maritima (widgeon grass) is tolerant of a wide range.of salinities and is found from the bay mouth to the Susquehanna Flats. Approximately twelve other species are only occasionally found and, when present, occur primarily in the middle and upper reaches of the bay and the tidal rivers (Appendix A). Hydrilla verticillata (hydrilla), a recently introduced species, presently dominates SAV beds in the tidal freshwater reaches of the Potomac River. It has also been reported again in 1990 in the Susquehanna Flats where its growth has not been as widespread as in the Potomac River (Kollar, pers. comm.). Zostera marina and Ruppia maritima are the dominant species reported from Chincoteague Bay. 2 METHODS Introduction Black and white aerial photography at a scale of 1:24,000 was the principal source of information used to assess the distribution and abundance of SAV in the Chesapeake Bay, its tributaries, and Chincoteague Bay in 1990. SAV beds mapped from photographs onto USGS 7.5 minute topographic quadrangles were then digitized, providing a digital data base for analysis of bed area and location. Ground truth information collected in 1990 was mapped onto the same topographic quadrangles. Aerial Photography The 1990 SAV photography was obtained by Air Photographics (Martinsburg, West Virginia) using a Wild RC-20 camera, with a 153 mm (6 inch) focal length Aviogon lens, and Agfa Pan 200 film. The camera was mounted in the bottom fuselage of the Air Photographics' Piper Aztec, a twin engine reconnaissance aircraft. Photography was acquired at approximately 12,000 feet altitude, yielding a 1:24,000 photographic scale. Flight lines for photography, which were drawn on 1:250,000 scale USGS maps, were predetermined by Air Pbotographics to include all areas known to have SAV, as well as those areas which could potentially have SAV (i.e. all areas where water depths were less than 2 m at mean low water). Flightlines also included land features that are necessary as control points for accurate mapping (Fig. 4). Sections of the upper Rappahannock, upper York, and most of the James rivers were not flown because of the continued absence of SAV in these areas. Flight lines were prioritized by major sections. Dates of flight windows for aerial photography were timed to occur at peak standing crop of species known to occur in the sections. In addition, specific areas with significant coverage were given priority. Prior approval by the VIMS staff was required to extend dates of flight windows if necessary. Actual dates of acquisition of photography are noted on each quadrangle map in Appendix C. General guidelines for mission planning and execution (Table 1) address tidal stage, plant growth, sun elevation, water and atmospheric transparency, turbidity, wind, sensor operation, and plotting. Adherence to these guidelines assured acquisition of photography under nearly optimal conditions for detection of SAV, thus insuring accurate photo interpretation. Quality assurance and calibration procedures were consistently followed. The altimeter was calibrated by the Federal Aviation Administration annually. Photographic settings were selected with an automatic exposure control. Sun angle was measured with an indicator on the plane. Flight lines were plotted on 1:250,000 scale maps to allow for 3 43 40 WSOU&IANNA FLA 47 6 1 4 41 BALTIMORE 37 34 5 33 5 4 HING 55 22 56 2 7 7 63 iL 58 0:@ 21 s op LP 2 1 'U, 27 @-i 9 0 5 is 126 1 3 8 is 16 17 122 714 73 13 10 121 76 71 5 70 68 69 72 66 14 ,ftep 4 78 9 77 3 0 2 1 1 09/- 6 82 'JA 84 1131 78 08 7 87C Be 8 89 92 SA 5 95 96A 10 100 N CJ@l 17 0 20 KILOMETER 10 Figure 4. Map of the Chesapeake Bay, its tributaries, and Chincoteague Bay with approximate locations of flight lines for 1990 SAV photography. 4 Table I Guidelines Followed During Acquisition Of Aerial Photographs. 1. Tidal Stage - Photography was acquired at low tide, +/- 0-1.5 ft., as predicted by the National Ocean Survey tables. 2. Plant Growth - Imagery was acquired when growth stages ensured maximum delineation of SAV, and when phenologic stage overlap was greatest. 3. Sun Angle - Photography was acquired when surface reflection from sun glint did not cover more than 30 percent of frame. Sun angle was generally between 200 and 400 to minimize water surface glitter. At least 60 percent line overlap and 20 percent side lap was used to minimize image degradation due to sun glint. 4. Turbidity - Photography was acquired when clarity of water ensured complete delineation of grass beds. This was visually determined from the airplane to insure that SAV could be seen by the observer. 5. Wind - Photography was acquired during periods of no or low wind. Off-shore winds were preferred over on-shore winds when wind conditions could not be avoided. 6. Atmospherics - Photography was acquired during periods of no or low haze and/or clouds below aircraft. There could be no more than scattered or thin broken clouds, or thin overcast above aircraft, to ensure maximum SAV to bottom contrast. 7. Sensor Operation - Photography was acquired in the vertical mode with less than 5 degrees tilt. Scale/altitude/film/focal length combination permitted resolution and identification of one square meter area of SAV (at the surface). 8. Plotting - Pach flight line included sufficient identifiable land area to assure accurate plotting of grass beds. -10 5 overlap of photography. To minimize image degradation due to sun glint, the camera was equipped with a computer controlled intervalometer which established 60% line overlap and 20% sidelap. An automatic bubble level held the camera to within one degree tilt. The scale/altitude/film/focal length combination was coordinated to produce one square meter resolution. Wind speed was monitored hourly from the flight service available in the'region. Under normal operating conditions, flights were usually conducted under wind speeds less than 10 mph. (Above this, wind generated waves stir the bottom sediments which can easily obscure SAV beds in less than one hour.) Pilot experience determined what acceptable level of turbidity would insure complete delineation of SAV beds. At low tide the pilot should have been able to distinguish bottom features such as SAV or algae. When turbid conditions prevailed photography did not commence. Cloud cover did not exceed 5% of the area covered by the camera frame. Determination of cloud cover was based on pilot experience. Records of this parameter were kept in a flight notebook. Every attempt was made to acquire photographs with no cloud cover below 12,000 feet. A thin haze layer above 12,000 feet was generally acceptable. Experience has shown that the optimal conditions given above generally occur two to three days followin g passage of a cold front when winds have shifted from north-northwest to south and moderated to less than 10 mph. Where possible, and within the guidelines given for prioritizing and executing the photography, flights were planned to coincide with these atmospheric conditions. Exposed film was processed by Air Photographics. A contact print was produced for each exposed frame. Each photograph was labeled with date of acquisition as well as flight line number. Film and photographs were stored under appropriate environmental conditions to prevent degradation of the product. Mapping Process This study utilized USGS 7.5 minute topographic quadrangle maps as a basis for mapping SAV beds from aerial photography, for digitizing the SAV beds, and for compiling SAV bed area measurements. Figure 5 gives locations of topographic quadrangles in the study area which includes all regions with potential for SAV growth. Most quadrangles are sequentially numbered for efficient access to data. The name corresponding to each quadrangle in Figure 5 is listed in Table 2. Photo-interpretation to identify and delineate SAV beds utilized all available information including knowledge of aquatic grass signatures on film, distribution of SAV in 1990 from aerial photography, 1990 ground truth information,. and aerial site surveys. USGS-published 7.5 minute topographic quadrangle masters (1:24,000 scale) printed by the Mid-Continent Mapping Center of the USGS on stable transparent mylar were used as base maps. Identical copies of these base maps were made at 6 24 5 Sl-%UA MANNA "A".4 1 Nn 14 516 17 2C, 22 is 21 1 25 27 HIN 33 158 ! 30 10 31 32 V Ln 159 37 38 160 -A 6 35e I r @41 42.@ @44 40 (P 44 45 k /') r,0 161 49 50 47 51 52 @40 x 53 54 w 56 4:1 57 192 62 .56 63> 64 C-' 67 70 '@ f@- _7 45 @G 168 L, 169 04 285 76 &it 92 S@@ 63 @0 lu 1?2 79 77 87 09 & '@90 91 ? 92 93 95 QW 97 100 101 Im 94 98 @r A; 105 107 log @r 103 109 112 113 115 11 119 122 124 1c, W, 125 126 127 128 129 130 1331 139 141 142 135 136 137 144 1-k 145\- 146 151 152 0 20 148d 149 LSo @IAL KILOMETER f53 154 11116@4 156 157 Figure 5. Location of USGS 7.5 minute topographic quadrangles for the Chesapeake Bay, its , J4 $06 @4 56 45 tributaries, and Chincoteague Bay with corresponding code numbers. (See Table 2 for quad names.) 7 Table 2 List Of USGS 7.5 Minute Topographic Quadrangles For The Chesapeake Bay And Chincoteague Bay SAV Study Areas With Corresponding Code Numbers. (See Fig. 5 for location of quadrangles. Topographic quadrangles with SAV beds can be found in Appendix C.) 1. Conowingo Dam, Md.-Pa. 46. Preston, Md. 2. Aberdeen, Md. 47. Quantico, Va.-Md. 3. Havre de Grace, Md. 48. Indian Head, Va.-Md. 4. North East, Md. 49. Benedict, Md. 5. Elkton, Md.-Del. 50. Prince Prederick, Md. 6. White Marsh, Md. 51. Hudson, Md. 7. Edgewood, Md. 52. Church Creek, Md. 8. Perryman, Md. 53. Cambridge, Md. 9. Spesutie, Md. 54. East New Market, Md. 10. Earleville, Md. 55. Widewater, Va.-Md. 11. Cecilton, Md. 56. Nanjemoy, Md. 12. Baltimore East, Md. 57. Mathias Point, Md.-Va. 13. Middle River, Md. 58. Popes Creek, Md. 14. Gunpowder Neck, Md. 59. Mechanicsville, Md. 15. Hanesville, Md. 60. Broomes Island, Md. 16. Betterton, Md. 61. Cove Point, Md. 17. Galena, Md. 62. Taylors Island, Md. 18. Curtis Bay, Md. 63. Golden Hill, Md. 19. Sparrows Point, Md. 64. Passapatanzy, Md.-Va. 20. Swan Point, Md. 65. King George, Va.-Md. 21. Rock Hall, Md. 66. Dahlgren, Va.-Md. 22. Chestertown, Md. 67. Colonial Beach North, Md.-Va. 23. Round Bay, Md. 68. Rock Point, Md. 24. Gibson Island, Md. 69. Leonardtown, Md. 25. Love Point, Md. 70. Hollywood, Md. 26. Langford Creek, Md. 71. Solomons Island, Md. 27. Centreville, Md. 72. Barren Island, Md. 28. Washington West, Md.-D.C.-Va. 73. Honga, Md. 29. Washington East, D.C.-Md. 74. Wingate, Md. 30. South River, Md. 75. Nanticoke, Md. 31. Annapolis, Md. 76. Colonial Beach South, Va.-Md. 32. Kent Island, Md. 77. Stratford Hall, Va..-Md. 33. Queenstown, Md. 78. St. Clements Island, Va.-Md. 34. Alexandria, Va.-D.C.-Md. 79. Piney Point, Md.-Va. 36. Deale, Md. 80. St. Marys City, Md. 36. Claiborne, Md. 81. Point No Point, Md. 37. St. Michaels, Md. 82. Richland Point, Md. 38. Easton Md. 83. Bloodsworth Island, Md. 39. Fort Belvoir, Va.-Md. 94. Deal Island, Md. 40. Mt. Vernon, Md.-Va. 85. Monie, Md. 41. Lower Marlboro, Md. 86. Champlain, Va. 42. North Beach, Md. 87. Machodoc, Va. 43. Tilghman, Md. 88. Kinsale, Va.-Md. 44. Oxford, Md. 89. St. George Island, Va.-Md. 45. Trappe, Md. 90. Point Lookout, Md. 8 Table 2 (continued) 91. Kedges Straits, Md. 134. Cheriton, Va. 92. Terrapin Sand Point, Md. 135. Savedge, Va. 93. Marion, Md. 136. Claremont, Va. 94. Mount Landing, Va. 137. Surry, Va. 95. Tappahannock, Va. 138. Hog Island, Va. 96. Lottaburg, Va. 139. Yorktown, Va. 97. Heathsville, Va.-Md. 140. Poquoson West, Va. 99. Burgess, Va.-Md. 141. Poquoson East, Va. 99. Ewell, Md.-Va. 142. Elliotts Creek, Va. 100. Great Fox Island, Va.-Md. 143. Townsend, Va. 101. Crisfield, Md.-Va. 144. Bacons Castle, Va. 102. Saxis, Va.-Md. 145. Mulberry Island, Va. 103. Dunnsville, Va. 146. Newport News North, Va. 104. Morattico, Va. 147. Hampton, Va. 105. Lively, Va. 148. Benns Church, Va. 106. Reedville, Va. 149. Newport News South, Va. 107. Tangier Island, Va. 150. Norfolk North, Va. 108. Chesconessex, Va. 151. Little Creek, Va. 109. Parksley, Va. 152. Cape Henry, Va. 110. Urbanna, Va. 153. Chuckatuck, Va. 111. Irvington, Va. 154. Bowers Hill, Va. 112. Fleets Bay, Va. 155. Norfolk South, Va. 113. Nandua Creek 156. Kempsville, Va. 114. Pungoteague, Va. 157. Princess Anne, Va. 115. West Point, Va. 158. Wye Mills, Md. 116. Saluda, Va. 159. Bristol, Md. 117. Wilton, Va. 160. Fowling Creek, Md. 118. Deltaville, Va. 161. Port Tobacco, Md. 119. Jamesville, Va. 162. Charlotte Hall, Md. 120. Toano, Va. 163. Mardela Springs, Md. 121. Gressitt, Va. 164. Wetipquin, Md. 122. Ware Neck, Va. 165. Selbyville, Md. 123. Mathews, Va. 166. Assawoman Bay, Md. 124. Franktown, Va. 167. Berlin, Md 125. Westover, Va. 168. Ocean City, Md. 126. Charles City, Va. 169. Public Landing, Md. 127. Brandon, Va. 170. Tingles Island, Md. 128. Norge, Va. 171. Girdle Tree, Md.-Va. 129. Williamsburg, Va. 172. Boxiron, Md.-Va. 130. Clay Bank, Va. 173. Whittington Point, Md.-Va. 131. Achilles, Va. 174. Chincoteague West, Va. 132. New Point Comfort, Va. 175. Chincoteague East, Va. 133. Cape Charles, Va. 176. Anacostia, D.C.-Md. 9 the same scale on stable transparent mylar using a contact diazo process. SAV from the 1990 aerial photographs was mapped onto these diazo copies of USGS topographic quadrangles. Delineation of SAV bed boundaries onto the topographic quadrangle maps was facilitated by superimposing the photographic print with the appropriate mylar quadrangle on a light table. SAV boundaries were then traced directly onto the mylar quadrangle with a pencil. Where minor scale differences were evident between a photograph and a quadrangle, or where significant shoreline erosion or accretion had occurred since USGS publication of a map, either a best fit was obtained or shoreline changes were noted on the quadrangle. In addition to delineating SAV bed boundaries, an estimate of percent cover within each bed was made visually in comparison with an enlarged Crown Density Scale similar to those developed for estimating of forest tree crown cover from aerial photography (Fig. 6). Bed density was classified into one of four categories based on a subjective comparison with the density scale. These were: 1, very sparse (<10% coverage); 2, sparse (10 to 40%; 3, moderate (40 to 70%); or 4, dense (70-100%). Either the entire bed or subsections within the bed were assigned a number U to 4) corresponding to the above density categories. Additionally, each distinct SAV unit (bed or bed subsection) was 'assigned an identifying two letter designation unique to its map. Subsections of beds were further identified as being part of a contiguous bed by the addition of two letters unique to each contiguous bed. These contiguous bed descriptions aid the tracking of a single bed between quad sheets as well as the analysis of those beds that had to be separated due to variation in SAV density. SAV Perimeter Digitization and Area Calculation The perimeters of all SAV beds mapped from the aerial photography were digitized in a clockwise direction using a Num6nics Model 2400/2200 DigiTablet Graphics Analysis System having a resolution of .001 inches (.00254 cm) and an accuracy of.005 inches (.0127 cm). Coordinates were transmitted to a PRIME 9955 computer for area calculations and data manipulation via software developed at VIMS. The perimeter of each SAV bed was defined by a polygon with a linear data point density of 127 per chart inch (50 per cm, 5 meter ground resolution). The total number of points defining any SAV bed is dependent on overall bed size. The SAV bed perimeter was stored as X and Y coordinates in centimeters from the quadrangle origin (lower left corner). Any "island" within a polygon (digitized SAV perimeter) was disregarded as long as a line was drawn from the outside of the polygon to the "island" and the resulting polygon was digitized in a clockwise direction. The line connecting the "island" polygon to the larger surrounding polygon was drawn in by the digitizer operator. 10 5 15 25 10-40 35 450, H ;B 55 40-70 65 75 IV 85 70-100 950 E 0 PERCENT CROWN'COVER Figure 6. Crown density scale used for determining density of SAV beds: (1) Very sparse, 0-10%; (2) Sparse, 10-40%; (3) Moderate, 40-70%; (4) Dense, 70-100%. SAV bed area in square centimeters on the chart was calculated via the following equation: A = V2 I (Xi* Y2 - X2* Yj) + (X2* Y3 - x3* Y2) +... + (xn* Yj - xj* Yn) I where Xn and Yn are the nth digitized perimeter points in centimeters. The area is then converted from square centimeters on the chart to square meters on the ground. This is done via the following conversion based on a chart scale of 1:24,000: Ag(m 2on ground) = Ac(cm2 on chart) * 57600 (M2 on ground / CM2 on chart) where Ag is the area on the ground of each S" bed and Ac is the area on the chart. The area on the ground is then stored for later use. Tests of Precision and Accuracy Prior to each digitization session, the Numonics instrument was checked manually against a digitizing standard. After a map had been secured to the digitizing tablet, the standard was secured to the map and digitized four times. The information from digitizing the standard was transmitted to the beginning of the SAV bed perimeter file on the PRIME computer. This same procedure was followed at the end of each digitizing session. When this file was processed by the computer, the digitized area of each @standard was compared to the known area of the standard. If a variation between the known and the mean of the observed areas exceeded 1.0%, a warning was printed advising the operator to check the digitizing system. In addition, checks were made with respect to the absolute location of the digitizing standard as secured to the map. A comparison was made between the location of the standard before and after the digitizing, session. If the absolute location differed by more then 0.10 cm another warning to check the system was printed. Any movement in absolute location can be indicative of digitizer instrument drift or chart movement during the digitization session.. These checks assure that the final calculated bed locations are as accurate'as possible. Maximum accuracy was maintained by exclusively using mylar topographic quadrangles rather than paper ones which can change scale as a function of changes in air temperature and, humidity in the digitizer room. Calculation of SAV Bed Mean Area and Choice of Representative SAV Bed Every S" bed mean area was the result of at least four independent digitizations of the outline of each SAV bed as part of a quality assurance quality control program designed to isolate and remove anomolous data and produce accurate and representative SAV bed polygons. The computer calculated area for each replication, and the three bed outlines or 12 perimeters most similar in terms of area were then used for the calculation of a mean area. The areas used in the mean area calculation had to be, by contract, within 5% or less from that of the mean area. All beds whose areal difference were in excess of 5% of the mean bed area were flagged by the VIMS quality assurance quality con trol computer program for additional error assesment. The VIMS error rate was normally less than 1%. The replicate bed whose area was most similar to the mean area was identified as the "best bed". The best bed area and perimeter coordinate points were then saved by the computer program as the representative area and perimeter for each specific SAV bed. A complete outline of the digitization procedure can be found in Orth et al., 1988. Standard Operating Procedures for Quality Assurance/Quality Control Standard operating procedures (SOPs) were developed to facilitate orderly and efficient processing of the 1990 SAV maps and the SAV bed perimeter computer files produced from them, and to comply with the need for consistency, quality assurance, and quality control. SOPs developed include: a detailed procedure outlining 46 steps for digitization of SAV maps; a 47 step checklist for editing SAV perimeter computer files to insure completeness and accuracy; a digitizer log in which all operations were recorded and dated, and which was used to guide and record editing operations; and a flow chart used to track progress of all operations including all changes in file names. Examples of these SOPs are in Orth et al., 1988. Conversion of SAV Perimeter Points from XY Centimeters to Universal Transverse Mercator (UTM) Coordinates in ARCANFO 5.0.1 Format The EPA Chesapeake Bay Program Computer Center manages its geographic data base using Environmental Systems Research Institute (ESRI) ARCANFO Geographic Information System (GIS) (ESRI, 1989). VIMS, with the assistance of the Virginia Council on the Environment EcoMAPS program, developed procedures to convert/transform the best bed perimeter points from X,Y centimeters to UTM based coordinates in ARCANFO 5.0.1 format. This involved construction of data transfer files in an ARCANFO standard format ("generate"). This was done on the VIMS PRIME for each topographic quadrangle with SAV beds present. Four files per quadrangle were produced: 1. Polygon file containing SAV bed coordinates in digitizer-based centimeters. 2. Attribute file containing SAV bed labels, density, species composition, and dates. 13 3. Tic file containing map corner locations in digitizer-based coordinates (cm). 4. Geo file containing corresponding latitude and longitude positions for map comers. The generate files were then copied to floppy disk(s) for subsequent transfer and processing at EcoMAPS, using their SUN Microsystems Spark 2 workstation-based ARCANFO 5.0.1 GIS. A set of automated ARCANFO routines were developed by the EcoMAPS staff to input quadrangle-based SAV generate data into ARCANFO 5.0.1 format, and to assist in interactive editing of SAV polygons. ARC-based SAV polygons were displayed and edited at the Council on the Environment by VIMS staff. SAV polygons appearing on the computer display screen were compared to their counterparts on the mylar quad maps. Discrepancies and artifacts were edited using a suite of ARCANFO editing "tools". ARC/INFO-based data sets were considered satisfactory for submission to EPA when the shape, location, and label of all SAV beds corresponded to those on the base mylar quad input map. ARCANFO-based SAV data was transformed to UTM coordinates, Zone 18, and submitted to EPA for final review,analysis, and deposition to archives. Organizational Provinces for Amalysis and Discussion Discussion of the distribution of SAV in the Chesapeake Bay and tributaries has been organized into three zones as established by Orth and Moore (1982) and modified by Orth et a]., 1989 (Fig. 7). The area between the mouth of the bay to a line stretching from the mouth of the Potomac River at Smith Point in Virginia to approximately 3 nautical miles south of Tangier Island then extending to the eastern side of the bay to an areajust south of the mouth of the Little Annemessex River is referred to as the Lower Bay zone. The area between the south shore of the Little Annemessex River and the south shore of the Potomac River to the Chesapeake Bay bridge at Kent Island is referred to as the Middle Bay zone. The area between the Chesapeake Bay bridge and the Susquehanna Flats is referred to as the Upper Bay zone. The salinity within each zone roughly coincides with the major salinity zones of estuaries: polybaline (18-250/oo), Lower zone; mesobaline (5-180/oo), Middle zone; oligobaline (0.5-5 O/oo), Upper zone. Although the major rivers and smaller tributaries of the bay have their own salinity regimes, the distribution of SAV in each river is discussed within the zone where it connects to the bay proper. In addition, 21 major sections of the bay are identified for more detailed discussion of SAV distribution (Fig. 7, Table 3). These sections, which were first delineated for the 1984 survey (Orth et al., 1985) and had been slightly modified for the 1987 survey (Orth et al., 1989), denote relatively distinct parts of the bay and its tributaries that are readily identifiable from a map. The section boundaries used for analysis and discussion of the 1990 SAV distribution and abundance data are those used foithe 1987 14 3940.0 SUSQUEHANNA R N 2 CHESAPEAKE cc BAY 3 LLJ PATAPSCO 3910.0 - 4 5 C 8 3840.0 UJ PATU)eeNr R. I 0 7 .12 J-POT R. 3810. 0 9 10- 15 3740. 0 14 16 cc LLI 3710.0 - 20.@ 3640.0 in Figure 7. Location of Upper, Middle, and Lower zones of the Chesapeake Bay and the 21 major sections used for delineation of SAV distribution patterns. (Latitude and longitude are in decimal degrees along the vertical and horizontal axes, respectively. See Table 3 and Appendix B for exact boundary positions.) 15 Table 3 Area Descriptions For Each Of The 21 Major Sections Of The Chesapeake Bay SAV Study Area. Section 1. Susquehanna Flats - all areas between and including Spesutie Island and Turkey Point at the mouth of the Elk River to include the Northeast River. Section 2. Upper Eastern Shore - all areas in the Elk, Bohemia, and Sassafras Rivers, and SAV in areas on the eastern shore above the Swan Point quadrangle. Section 3. Upper Western Shore - all areas south of Spesutie Island and north of the bay bridge to include the Bush, Gunpowder, Middle, Patapsco, and Magothy Rivers. Section 4. Chester River - includes all of the Chester River, Eastern Neck, areas north of the bay bridge on Kent Island, and south of Swan Point, and to include SAV on the Swan Point quadrangle. Section 5. Central Western Shore - all areas south of the bay bridge and north of Holland Point on Herring Bay to include the Severn, South, and West Rivers and Herring Bay. Section 6. Eastern Bay - all areas south of the bay bridge on Kent Island and north of Tilghman Island from Green Marsh Point to include the Wye, East, and Miles Rivers, Crab Alley Bay, Prospect Bay, and Poplar, Jefferson, and Coaches Islands. Section 7. Choptank River - all areas south of Tilghman Island from Green Marsh Point and north of Taylor Island to include the Choptank and Little Choptan.k Rivers. Section 8. Patuxent River - all areas in the Patuxent River. Section 9. Middle Western Shore - all areas south of Holland Point at Herring Bay and north of Point Lookout on the Potomac River but not the mouth of the Patuxent River. Section 10. Lower Potomac River - all areas between the mouth of the Potomac River to a line extending from Maryland Point on the north shore, just above Nanjemoy Creek, to Somersett Beach on the south shore. Section 11. Upper Potomac River - all areas from upriver limit of the Lower Potomac River Section to Chain Bridge at Washington D.C. 16 Table 3 (continued) Section 12.**Middle Eastern Shore - all areas south of Taylor Island and north of a line bisecting Cedar Island to include the Big and Little Annemessex Rivers, Fishing Bay, and the Honga, Nanticoke, Wicomico, and Manokin Rivers. Section 13.**Mid-bay Island Complex - all areas in and adjacent to Bloodsworth, South Marsh, Smith, and Tangier Islands. Section 14.**Lower Eastern Shore - all areas south of a line bisecting Cedar Island and located just above the Maryland-Virginia line to Fisherman's Island. Section 15. Reedville Region - includes the area between Windmill Point on the Rappahannock River, and Smith Point at the mouth of the Potomac River. Section 16. Rappahannock River Complex - includes the entire Rappahannock River, Pian'katank River, and Milford Haven area. Section 17. New Point Comfort Region - includes the area fronting the bay from the lighthouse at New Point Comfort north to, but not including, the bay entrance to Milford Haven. Section 18.**Mobjack Bay Complex - includes the East, North, Ware, and Severn Rivers, the north shore of the Mobjack Bay from New Pt. Comfort lighthouse to the North River, and north of a line bisecting the large shoal area around the Guinea Marsh area. Section 19.**York River - all areas along the north shore from Clay Bank to the Guinea Marsh area and south of a line bisecting the large shoal area around the Guinea Marsh area, and along the south shore to include the north shore of Goodwin Island. Section 20.**Lower Western Shore - includes all areas south of Goodwin Island to Broad Bay off Lynnhaven Inlet, excluding the James River. Section2l. James River -all SAV in the James River including the Chickahominy River. Sections 12, 13, 14, 18, 19, and 20 were given new boundaries for the 1987 report (Orth et al., 1989) which also changed the delineation of the three major zones. These new boundaries were retained for the 1989 report (Orth and Nowak, 1990) and for this report. (Refer to Figure 7 and Appendix B for boundary locations.) 17 and 1989 report (Orth et al., 1989; Orth and Nowak, 1990). Sections 1 through 4 are located in the Upper Bay zone. Sections 5 through 13 are located in the Middle Bay zone, and sections 14 through 21 are located in the Lower Bay zone. Appendix B gives the latitude and longitude of the boundary points of each Chesapeake Bay section and Chincoteague Bay in decimal degrees. SAV distribution in Chincoteague Bay is presented and discussed separately from the Chesapeake Bay. 18 Ground Mruth and Other Data Bases Ground truthing was accomplished by cooperative efforts of a number of agencies and individuals. Although not all areas of the bay were groundtruthed this program does provide valuable supplemental information. This program confirmed the existence of some SAV beds mapped from 1990 aerial photography, located a few 1990 SAV beds not visible from the photography, and provided species data for many of these beds. Ground truth survey information supplied to VIMS researchers was included on the SAV distribution and abundance maps reproduced in Appendix C to show positions of the survey stations in relation to the 1990 beds of SAV mapped from the aerial photographs. Each survey was designated by a unique symbol to identify the different methods of sampling. In most cases, the symbols on the SAV maps (Appendix C) have been enlarged and offset from the actual sampling point to avoid confusion with the mapped SAV bed. Where species information was available, it was included on the map. Additionally, all ground truth data supplied to VIMS referenced on copies of 1989 SAV maps was tabulated in Appendix E and cross- referenced at VIMS by 1990 bed locations. For those areas in Virginia waters where aerial photographic evidence of SAV beds was inconclusive, photo-verification was accomplished by ground truthing. Observations were principally made from small boats and by divers snorkeling over areas indicated from the photographs. In several river systems included in this survey (York, Piankatank and Rappahannock) where VIMS researchers transplanted SAV (principally eelgrass), transplant sites were also examined carefully by divers for any extant SAV. VIMS scientists also surveyed a number of sites in the bay as part of an intensive quantitative SAV study (VIMS, unpublished data). Citizen Meld Observation data for Virginia waters (compiled by the USFWS) were also added to the 1990 Virginia SAV maps reproduced in Appendix C. In addition, a great deal of ground truth information could be extrapolated from earlier studies (Orth et al., 1979; Orth and Moore, 1982) since SAV beds in this region contain primarily one or two species and have not undergone drastic fluctuations in distribution and abundance since the first bay-wide survey in 1978. In Maryland, ground truth data were obtained in 1990 by the Metropolitan Washington Council of Governments (COG) Potomac River survey, the Maryland-National Capital Parks and Planning Commission Patuxent River Park survey, three SAV research projects, a USFWS survey, and the Citizen's and Charterboat Captain's volunteer surveys (both data sets were compiled by the USFWS along with their own survey data). USFWS personnel surveyed selected locations in the upper bay, including the Potomac River, by boat using rakes to collect samples to determine presence or absence of SAV. All plant samples collected by USFWS were identified to species. Citizen groundtruthing identified plants to species when possible. SAV sightings were referenced on USGS 7.5 minute topographic maps. USFWS staff transferred data from these surveys to full-scale copies of 1989 SAV distribution maps (USGS 7.5 19 minute topographic quads with 1989 SAV beds). These USFWS-prepared survey maps were supplied to VIMS SAV researchers and survey data were transferred by VIMS staff to the 1990 SAV distribution maps reproduced in Appendix C. USFWS survey data was tabulated, locating each SAV siting by listing its associated 1989 bed. This table was supplied to VIMS where additional survey data were added and it became the basis for the much expanded table published in Appendix E. In this latter VIMS version of the USFWS table, all ground truth data were added from the additional surveys, as noted in this report, and all were cross-referenced by 1990 bed locations as well as by 1989 bed locations. The field study in the Potomac River by the COG, which covered the shoreline areas from the District of Columbia (D.C.) to Aquia Creek used shoreline surveys to document the distribution of SAV in the tidal freshwater and transition zones of the Potomac River and tributaries (Maps 29, 34, 39, 40, 47, 48, and 55) in September. These surveys were done by boat, using rakes to collect samples to determine presence or absence of SAV. Plants were identified by species and the proportion of each was estimated for vegetated areas. Each vegetated area with species proportions was referenced on USGS 7.5 minute topographic maps by the surveyors. Survey maps were supplied to VIMS SAV researchers. The Patuxent River Park survey was carried out in July and August by park employees who provided survey maps (Maps 41, 49, and 159) with tables for each map listing species present and percent cover. These data and maps were supplied to VIMS. The USFWS, Citizen's, and Charterboat Captain's surveys also collected groundtruth data from these rivers. The Potomac and Patuxent River data were transferred by VIMS staff to the 1990 SAV distribution maps (reproduced in Appendix C) and were tabulated in Appendix E. One 1990 SAV project being conducted on the Susquehanna Flats by Stan Kollar of Harford Community College provided data in the form of species presence by percentage, primarily by Visual estimates. A SAV research group headed by William Dennison at the University of Maryland Horn Point Environmental Laboratories (HPEL) also provided 1990 , ground truth data in collaboration with the VIMS research team. This was part of the intensive quantitative study mentioned earlier (VIMS, unpublished data). The Essex Community College SAV Research Group of Baltimore County, Maryland, contributed groundtruth data for quads 13 and 14. Maps of these study sites with species data were provided to VIMS researchers. Species locations from these data were added to the 1990 SAV maps reproduced in Appendix C and were tabulated in Appendix E by VIMS staff. In addition to the scientific surveys, private citizens participated in identifying 1990 SAV beds by checking for presence of SAV at previous years SAV bed locations@ in certain areas in the bay, and by locating SAV bed locations new in 1990. Two groups were responsible for looking for SAV under the sponsorship of separate organizations. The Maryland Charterboat Association participated in the baywide effort, funded by the Maryland Department of Natural Resources (MD-DNR) Watermen's 20 Assistance Program. Boat captains were provided with reduced 1989 SAV quadrangle maps to aid in location of 1990 SAV beds and with data sheets on which to record information on each 1990 SAV bed identified. Sampling of SAV sites was undertaken at low tide. Samples were taken by hand, net or rake. Plants were identified as to species onsite or placed in zip-lock plastic bags and sent to the MD-DNR for identification. Private citizens volunteered to assist in the 1990 SAV ground survey under guidance of the USFWS and the Chesapeake Bay Foundation (CBF). This program entailed identifying and'recording the location of SAV in the bay in 1990. Volunteers, who were recruited through press releases, newsletters, and personal letters, were provided with a SAV identification guide, reduced 1989 SAV maps to aid in location of SAV beds, and data sheets for visits to numerous sites around the bay. Each volunteer was asked to identify the location where SAV was sighted, and to identify the species. All information from the Charterboat Captain's and the Citizen's surveys was submitted to Kathryn Reshetiloff (USFWS) for processing. SAV sitings reported by the Citizen's and Charterboat Captain's surveys were mapped on 1989 SAV maps. As previously explained, USFWS personnel also tabulated data from most of the 1990 Citizen's and Charterboat Captain's surveys along with their own survey's data, listing each SAV siting by 1989 bed location. VIMS staff mapped these data on maps reproduced in Appendix C, and data were tabulated in Appendix E. 21 RESULTS Data Presentation SAV distribution data are presented by topographic quadrangle Crable 4), by section and zone (Table 5), and by quadrangles within a section (Table 6). Topographic quadrangle maps annotated with all SAV beds are presented in Appendix C, while individual bed areas for each quadrangle are given in Appendix D. Appendix E tabulates all ground truth data for 1990. The 1990 SAV distribution data and species occurrences are first discussed relative to the Upper, Nfiddle, and Lower Bay zones, respectively. The 21 sections of the Chesapeake Bay, and Chincoteague Bay, are then discussed individually and the data compared to results from the 1989 survey of SAV distribution and abundance (Ordi and Nowak, 1990). SAV is plotted for each section and for Chincoteague Bay in Figures 8 through 29. SAV is plotted in red, a starred line represents a section boundary, latitude and longitude are in decimal degrees along the vertical and horizontal axes, respectively, and USGS 7.5 minute topographic quadrangles am represented by a grid of numbered rectangles (refer to Table 2 for quadrangle names listed by mao number.) 1990 SUMMARY In 1990, the Chesapeake Bay had 24,313 hectares of SAV, compared to 24,138 hectares in 1989, with 2,353 hectares (10%), 11,328 hectares (47%), and 10,632 hectares (44%) occurring in the Upper, Middle, and Lower Bay zones, respectively (Figs. 1, 2, and 3). Upper Bay Zone In 1990 seventy-five percent (1,774 hectares) of the SAV within the Upper Bay zone was located in the Susquehanna Flats (Section 1). Eight species of SAV were documented by ground truth surveys in this section, with Myriophyllum spicatum being dominant. A recently introduced exotic species, Hydrilla verticillata, was found in the Flats but occurred in small isolated beds. Overall abundance of SAV declined from 1989,(1,945 hectares) and 1987 (2,219 hectares) levels , but the density of beds increased slightly from 1989. Ninety-two percent of all SAV beds in the Flats were classified as very sparse (0-10% coverage), and 5% of beds were classified as dense (70-100% coverage). This is a slight improvement over 1989 coverage when 95% were very sparse and no beds were classified as dense. In the Upper Eastern Shore (Section 2) there were 421 hectares of SAV (113 hectares more than in 1989) -if located principally in the Elk and lower Sas& ras rivers, and Swan, Stillpond, and Churn creeks, with many of the same species as reported in the Susquehanna Flats section. The Upper Western Shore (Section 3) had 90 hectares of SAV, primarily M. spicatum and Vallisneria americana, concentrated in Saltpeter and Dundee creeks. This is an increase of 52 hectares over 1989 and approaches the 1987 level of 117 hectares. In the Chester River (Section 4) SAV abundance (67 hectares) was down 109 4ectares from 1989 and 448 hectares from 1987. SAV was most abundant 22 Table 4 Total Area Of SAV In Hectares By USGS 7.5 bfinute Topographic Quadrangles For 1989 And 1990. QUADRANGLE 1989 1990 1. Conowingo Dam, Md.-Pa. 0 - 2. Aberdeen, Md. 0.66 2.12 3. Havre de Grace, Md. 1835.50 1770.03 4. North East, Md. 105.51 146.69 5. Elkton, Md.-Del. 5.70 39.59 6. White Marsh, Md. 0 7. Edgewood, Md. 0 8. Perryman, Md. 0 0 9. Spesutie, Md. 187.85 50.95 10. Earleville, Md. 97.87 166.92 11. Cecilton, Md. 0 - 12. Baltimore East, Md. 0 - 13. Middle River, Md. 3.61 0.69 14. Gunpowder Neck, Md 34.55 89.75 15. Hanesville, Md. 12.66 6.33 16. Betterton, Md. 1.09 4.23 17. Galena, Md. 2.79 7.94 18. Curtis Bay, Md. 19. Sparrows Pt., Md. 20. Swan Point, Md. 5.24 6.47 21. Rock Hall, Md. 19.16 12.00 22. Chestertown, Md. 0 0 23. Round Bay, Md. 24. Gibson Island, Md. 25. Love Point, Md. 0 0 26. Langford Creek, Md. 138.92 47.79 27. Centreville, Md. 0. 0 28. Washington West, Md.-DC-Va. 0 0 29. Washington East, DC-Md. 0 30. South River, Md. 31. Annapolis, Md. 0 23 Table 4 (Continued) QUADRANGLE 1989 1990 32. Kent Island, Md. 327.06 132.99 33. Queenstown, Md. 128.33 55.66 34. Alexandria, Va.-DC-Md. 368.44 399.54 35. Deale, Md. 36. Claiborne, Md 381.68 139.05 37. St. Michaels, Md. 172.44 62.67 38. Easton, Md. 0 39. Fort Belvoir, Va.-Md. 63.48 105.06 40. Mt. Vernon, Md.-Va. 334.61 358.25 41. Lower Marlboro, Md. 0 42. North Beach, Md. 0 0 43. Tilghman, Md. 231.11 11.81 44. Oxford, Md. 95.94 19.27 45. Trappe, Md. 0 0 46. Preston, Md. 0 0 47. Quantico, Va.-Md. 533.16 694.01 48. Indian Head, Va.-Md. 184.01 303.67 49. Benedict, Md. 50. Prince Frederick, Md. 0 0 51. Hudson, Md. 331.36 96.78 52. Church Creek, Md. 18.99 6.46 53. Cambridge, Md. 0 0 54. East New Market, Md. 0 0 55. Widewater, Va. -Md. 466.64 614.54 56. Nanjemoy, Md. 149.61 126.73 57. Mathias Pt., Md.-Va. 346.69 285.36 58. Popes Creek, Md. 6.20 4.86 59. Mechanicsville, Md. 0 0 60. Broomes Island, Md. 0 61. Cove Pt., Md. 0.48 62. Taylors Island, Md. 16.17 58.41 24 Table 4 (Continued) QUADRANGLE 1989 1990 63. Golden Hill, Md. 2.49 4.05 64. Passapatanzy, Md.-Va. 0 0 65. King George, Va. -Md. 52.24 53.05 66. Dahlgren, Va.-Md. 65.33 51.65 67. Colonial Beach N., Md.-Va. 28.46 45.89 68. Rock Point, Md. 0 69. Leonardtown, Md. 70. Hollywood, Md. 71. Solomons Island, Md. 2.96 72. Barren Island, Md. 301.43 299.81 73. Honga, Md. 773.43 1006.05 74. Wingate, Md. 369.33 400.16 75. Nanticoke, Md. 5.02 0 76. Colonial Beach S., Va.-Md. 0 0 77. Stratford Hall, Va.-Md. 0 0 78. St. Clements Is., Va.-Md. 0 0 79. Piney Point, Md.-Va. 80. St. Marys City, Md. 0 81. Point No Point, Md. 0 0 82. Richland Point, Md. 24.02 30.83 83. Bloodsworth Island, Md. 686.80 700.35 84. Deal Island, Md. 27.38 39.07 85. Monie, Md. 17.84 18.36 86. Champlain, Va. - - 87. Machodoc, Va. 0 0 88. Mnsale, Va.-Md. 0 0 89. St. George Island, Va.-Md. 2.84 0 90. Point Lookout, Md. 0 0 91. Kedges Straits, Md. 781.25 876.49 92. Terrapin Sand Point, Md. 218.21 256.81 93. Marion, Md. 199.80 192.22 10 25 Table 4 (Continued) QUADRANGLE 1989 1990 94. Mount Landing, Va. - - 95. Tappahannock, Va. - - 96. Lottsburg, Va. 0 0 97. Heathsville, Va.-Md. 0 0 98. Burgess, Va.-Md. 0 0 99. Ewell, Va.-Md. 2423.98 2446.54 100. Great Fox Is., Va.-Md. 1381.77 1371.98 101. Crisfield, Va.-Md. 202.04 226.41 102. Saxis, Va.-Md. 2.08 0.78 103. Dunnsville, Va. - - 104. Morattico, Va. 0 0 105. Lively, Va. 0 0 106. Reedville, Va. 157.87 226.98 107. Tangier Island, Va. 699.37 751.90 108. Chesconessex, Va. 972.11 954.06 109. Parksley, Va. 320.18 339.88 110. Urbanna,Va. 200.66 15.89 ill. Irvington, Va. 245.45 221.46 112. Fleets Bay, Va. 334.59 381.94 113. Nandua Creek, Va. 406.21 365.87 114. Pungoteague, Va. 795.10 824.70 115. West Point, Va. - 0 116. Saluda, Va. 19.08 1.97 117. Wilton, Va. 43.07 48.67 118. Deltaville, Va. 81.06 90.48 119. Jamesville, Va. 496.40 509.86 120. Toano,Va. - 121. Gressitt, Va. - - 122. Ware Neck, Va. 278.06 303.80 123. Mathews, Va. 110.18 196.38 124. Franktown, Va. 435.88 485.05 26 Table 4 (Continued) QUADRANGLE 1989 1990 125. Westover, Va. - 126. Charles City, Va. 127. Brandon, Va. 128. Norge, Va. 0** 129. Williamsburg, Va. 130. Clay Bank, Va. 1.48 131. Achilles, Va. 957.95 997.18 132. New Point Comfort, Va. 1273.85 1398.85 133. Cape Charles, Va. 271.66 318.97 134. Cheriton, Va. 73.21 70.69 135. Savedge, Va. - - 136. Claremont, Va. 137. Surry, Va. 138. Hog Island, Va. - - 139. Yorktown, Va. 1.58 1.68 140. Poquoson West, Va. 411.99 541.33 141. Poquoson East, Va. 994.84 1007.50 142. Elliotts Creek, Va. 15.90 28.20 143. Townsend, Va. 12.55 1.51 144. Bacons Castle, Va. - - 145. Mulberry Island, Va. 146. Newport News North, Va. 147. Hampton, Va. 304.06 342.00 148. Benns Church, Va. - - 149. Newport News South, Va. 0 0 150. Norfolk North, Va. 0 0 151. Little Creek, Va. 0 0 152. Cape Henry, Va. 36.47 28.33 153. Chuckatuck, Va. - - 154. Bowers Hill, Va. 155. Norfolk South, Va. 90 27 Table 4 (Continued) QUADRANGLE 1989 1990 156. Kempsville, Va. - - 157. Princess Anne, Va. 0 0.73 158. Wye Mills, Md. 0 0 159. Bristol, Md. 160. Fowling Creek, Md. 0 0 161. Port Tobacco, Md. 12.09 11.90 162. Charlotte Hall, Md. 0 0 163. Mardela Springs, Md. 0 0 164. Wetipquin, Md. 0 0 165. Selbyville, Md 0 0 166. Assawoman Bay, Md. 0 0 167. Berlin, Md. 4.98 6.33 168. Ocean City, Md. 3.45 19.79 169. Public Landing, Md. 0 0 170. Tingles Island, Md. 820.82 993.64 171. Girdle Tree, Md.-Va. 0 0 172. Boxiron, Md.-Va. 653.88 636.13 173. Whittington Point, Md.-Va. 161.79 239.86 174. Chincoteague West, Va. 0 0 175. Chincoteague East, Va. 665.58 598.70 176. Anacostia, D.C.-Md. 0 0 TOTAL SAV - Chesapeake Bay 24,137.63 24,312.55 TOTAL SAV - Chincoteague Bay 2,310.49 2,494.45 NOTES: - Indicates quadrangle not photographed and assumed to have no SAV. 0 Indicates quadrangle photographed and no SAV noted. Area was photographed in 1987 and 1989, and was known to have SAV both years but was not mapped because SAV beds were too narrow and obscured by the shoreline at 1:24,000 scale. Ground truthing in 1987 revealed narrow beds fringing the shoreline of small tributaries of the Chickahominy River. (Area was not photographed in 1990). SAV beds not detected from aerial photography. Ground truth information indicated presence of SAV. 28 Table 5 Number of Hectares of SAV in 1989 and 1990 For The 21 Major Sections And Three Zones of the Chesapeake Bay And For Chincoteague Bay. (Section boundaries redefined for 1987 (Orth et al., 1989) and retained for 1989 (Orth and Nowak, 1990 and for 1990. See Figure 7, Table 3 and Appendix B for boundary locations. ZONE SECTION AREA (HECTARES) 1989 1990 1. Susquehanna Flats 1,944.96 1,773.93 Upper 2. Upper Eastern Shore 307.72 421.29 3. Upper Western Shore 38.17 90.44 4. Chester River 167.16 67.37 Zone Total 2,458.01 2,353.03 5. Central Western Shore 0.00 0.00 6. Eastern Bay 831.48 388.84 7. Choptank River 864.70 192.74 8. Patuxent River 3.44 0.00 Middle 9. Middle Western Shore 0.00 0.00 10. Lower Potomac River 615.62 532.16 11. Upper Potomac River 1,998.16 2,522.34 12. Middle Eastern Shore 1,997.99 2,286.72 13. Mid-Bay Island Complex 5,199.04 5,405.12 Zone Total 11,510.43 11,327.92 14. Lower Eastern Shore 4,718.41 4,828.67 15. Reedville 492.34 608.93 16. Rappahannock River Complex 669.22 544.37 Lower 17. New Point Comfort Region 345.78 356.98 18. Mobjack Bay Complex 1,592.59 1,703.40 19. York River 676.89 789.95 20. Lower Western Shore 1,670.08 1,796.57 21. James River 3.86 2.73 Zone Total 10,169.17 10,631.60 Total SAV for Chesapeake Bay 24,137.61 24,312.55 Total SAV for Chincoteague Bay 2,310.49 2,494.45 29 Table 6 Number of Square Meters Of SAV in,1990 For Each Quadrangle of The 21 Sections in the Chesapeake Bay and of Chincoteage Bay. (Map code numbers from Table 2 in parentheses.) SECTION QUADRANGLE AREA Susquehanna Flats - 1 Conowingo Dam (1) 0 Aberdeen (2) 21,241 Havre de Grace (3) 17,700,292 North East (4) 0 Elkton (5) 0 Perryman (8) 0 Spesutie (9) 17,727 Earleville (10) 0 17,739,260 sq. m 1,773.93 hectares 4,383.37 acres Upper Eastern Shore - 2 North East (4) 1,466,894 Elkton (5) 395,899 Perryman (8) 0 Spesutie (9) 491,747 Earleville (10) 1,669,177 Cecilton (11) 0 Gunpowder Neck (14) 0 Hanesville (15) 63,326 Betterton (16) 42,303 Galena (17) 79,353 Swan Point (20) 0 Rock Hall (21) 4,197 Chestertown (22) 0 4,212,896 sq. m 421.29 hectares 1,041.01 acres Upper Western Shore - 3 White Marsh (6) 0 Edgewood (7) 0 Perryman (8) 0 Spesutie (9) 0 Baltimore East (12) 0 Middle River (13) 6,933 Gunpowder Neck (14) 897,489 30 Table 6 (Continued) SECTION QUADRANGLE AREA Upper Western Shore - 3 (continued) Hanesville (15) 0 Curtis Bay (18) 0 Sparrows Point (19) 0 Swan Point (20) 0 Round Bay (23) 0 Gibson Island (24) 0 Love Point (25) 0 904,422 sq. m 90.44 hectares 223.48 acres Chester River - 4 Betterton (16) 0 Galena (17) 0 Swan Point (20) 64,658 Rock Hall (21) 115,806 Chestertown (22) 0 Love Point (25) 0 Langford Creek (26) 477,893 Centreville (27) 0 Kent Island (32) 0 Queenstown (33) 15,321 673,678 sq. m 67.37 hectares 166.47 acres Central Western Shore - 5 Curtis Bay (18) 0 Round Bay (23) 0 Gibson Island (24) 0 Love Point (25) 0 South River (30) 0 Annapolis (31) 0 Kent Island (32) .0 Deale (35) 0 North Beach (42) 0 000 sq. m 0.00 hectares 0.00 acres 31 Table 6 (Continued) SECTION QUADRANGLE AREA Eastern Bay 6 Centreville (27) 0 Annapolis (31) 0 Kent Island (32) 1,329,908 Queenstown (33) 541,305 Claiborne (36) 1,390,455 St. Michaels (37) 626,741 Easton (38) 0 Tilghman (43) 0 Oxford (44) 0 Wye Mills (158) 0 3,888,409 sq. m 388.84 hectares 960.83 acres Choptank River 7 Centreville (27) 0 Claiborne (36) 0 St. Michaels (37) 0 Easton (38) 0 Tilghman (43) 118,127 Oxford (44) 192,706 Trappe(45) 0 Preston (46) 0 Hudson (51) 967,841 Church Creek (52) 64,556 Cambridge (53) 0 East New Market (54) 0 Taylors Island (62) 584,126 Golden Hill (63) 0 Nanticoke (75) 0 Wye Mills (158) 0 Fowling Creek (160) 0 1,927,356 sq. m 192.74 hectares 476.25 acres Patuxent River 8 Deale (35) 0 Lower Marlboro (41) 0 North Beach (42) 0 32 Table 6 (Continued) SECTION QUADRANGLE AREA Eastern Bay 6 Centreville (27) 0 Annapolis (31) 0 Kent Island (32) 1,329,908 Queenstown (33) 541,305 Claiborne (36) 1,390,455 St. Michaels (37) 626,741 Easton (38) 0 Tilghman (43) 0 Oxford (44) 0 Wye Mills (158) 0 3,888,409 sq. m 388.84 hectares 960.83 acres Choptank River 7 Centreville (27) 0 Claiborne (36) 0 St. Michaels (37) 0 Easton (38) 0 Tilghman (43) 118,127 Oxford (44) 192,706 Trappe(45) 0 Preston (46) 0 Hudson (51) 967,841 Church Creek (52) 64,556 Cambridge (53) 0 East New Market (54) 0 Taylors Island (62) 584,126 Golden Hill (63) 0 Nanticoke (75) 0 Wye Mills (158) 0 Fowling Creek (160) 0 1,927,356 sq. m 192.74 hectares 476.25 acres Patuxent River 8 Deale (35) 0 Lower Marlboro (41) 0 North Beach (42) 0 32 Table 6 (Continued) SECTION QUADRANGLE AREA Patuxent River - 8 (continued) Benedict (49) 0 Prince Frederick (50) 0 Mechanicsville (59) 0 Broomes Island (60) 0 Cove Point (61) 0 Leonardtown (69) 0 Hollywood (70) 0 Solomons Island (71) 0 Bristol (159) 0 Charlotte Hall (162) 0 0.00 sq. m 0.00 hectares 0.00 acres Middle Western Shore - 9 North Beach (42) 0 Prince Frederick (50) 0 Hudson (51) 0 Broomes Island (60) 0 Cove Point (61) 0 Taylors Island (62) 0 Solomons Island (71) 0 Barren Island (72) 0 St. Mary's City (80) 0 Point No Point (81) 0 Richland Point (82) 0 Point Lookout (90) 0 0.00 sq. m 0.00 hectares 0.00 acres Lower Potomac River - 10 Nanjemoy (56) 1,267,306 00 Mathias Point (57) 2,853,555 Popes Creek (58) 48,644 Mechanicsville (59) 0 King George (65) 176,643 33 Table 6 (Continued) SECTION QUADRANGLE AREA Lower Potomac River - 10 (continued) Dahlgren (66) 516,549 Colonial Beach North (67) 458,857 Rock Point (68) 0 Leonardtown (69) 0 Hollywood (70) 0 Solomons Island (71) 0 Colonial Beach South (76) 0 Stratford Hall (77) 0 St. Clements Island (78) 0 Piney Point (79) 0 St. Marys City (80) 0 Champlain (86) 0 Machodoc (87) 0 Mnsale (88) 0 St. George Island (89) 0 Point Lookout (90) 0 Lottsburg (96) 0 Heathsville (97) 0 Burgess (98) 0 Port Tobacco (161) 0 Charlotte Hall (162) 0 5,321,554 sq. m 532.16 hectares 1,314.96 acres Upper Potomac River - 11 Washington West (28) 0 Washington East (29) 0 Alexandria (34) 3,995,384 Fort Belvoir (39) 1,050,578 Mt. Vernon (40) 3,582,541 Quantico (47) 6,940,103 Indian Head (48) 3,036,701 Widewater (55) 6,145,398 Nanjemoy (56) 0 Mathias Point (57) 0 Passapatanzy (64) 0 34 Table 6 (Continued) SECTION QUADRANGLE AREA Upper Potomac River - 11 (continued) Mng George (65) 353,695 Dahlgren (66) 0 Port Tobacco (161) 118,994 25,223,394 sq. in 2,522.34 hectares 6,232.70 acres Middle Eastern Shore - 12 Taylors Island (62) 0 Golden Hill (63) 40,528 Barren Island (72) 2,998,076 Honga(73) 10060,454 Wingate (74) 4,001,599 Nanticoke (75) 0 Point No Point (81) 0 Richland Point (82) 308,287 Bloodsworth Island (83) 964,794 Deal Island (84) 390,746 Monie (85) 183,570 Terrapin Sand Point (92) 205,568 Marion (93) 1,922,186 Great Fox Island (100) 1,169,760 Crisfield (101) 621,594 Mardela Springs (163) 0 Wetipquin (164) 0 22,867,162 sq. m 2,286.72 hectares 5,650.48 acres Mid-Bay Island Complex - 13 Richland Point (82) 0 Bloodsworth Island (83) 6,038,677 Deal Island (84) 0 Kedges Straits (91) 8,764,894 Terrapin Sand Point (92) 2,362,497 Ewell (99) 24,465,408 Great Fox Island (100) 5,381,238 35 Table 6 (Continued) SECTION QUADRANGLE AREA Mid-Bay Island Complex - 13 (continued) Tangier Island (107) 7,038,465 54,051,179 sq. m 5,405.12 hectares 13,356.05 acres Lower Eastern Shore - 14 Marion (93) 0 Great Fox Island (100) 7,168,122 Crisfield (101) 1,642,408 Saxis (102) 7,772 Tangier Island (107) 480,540 Chesconessex (108) 9,540,552 Parksley (109) 3,398,758 Nandua Creek (113) 3,658,735 Pungoteague (114) 8,247,049 Jamesville (119) 5,098,593 Franktown (124) 4,850,463 Cape Charles (133) 3,189,686 Cheriton (134) 706,939 Elliotts Creek (142) 281,996 Townsend (143) 15,115 48,286,728 sq. m 4,828.67 hectares 11,931.65 acres Reedville - 15 Heathsville (97) 0 Burgess (98) 0 Reedville (106) 2,269,830 Irvington (111) 0 Fleets Bay (112) 3,819,443 6,089,273 sq. in 608.93 hectares 1,504.66 acres 36 Table 6 (Continued) SECTION QUADRANGLE AREA Rappahannock River Tappahannock (95) 0 Complex - 16 Lottsburg (96) 0 Dunnsville (103) Morattico (104) 0 Lively (105) 0 Urbanna (110) 158,934 Irvington (111) 2,214,585 Fleets Bay (112) 0 Saluda (116) 19,731 Wilton (117) 486,692 Deltaville (118) 904,796 Ware Neck (122) 0 Mathews (123) 1,658,974 5,443,712 sq. m 544.37 hectares 1,345.14 acres New Point Comfort Region - 17 Mathews (123) 0 New Point Comfort (132) 3,569,822 3,569,822 sq. m 356.98 hectares 882.10 acres Mobjack Bay Complex - 18 Ware Neck (122) 3,038,030 Mathews (123) 304,789 Clay Bank (130) 0 Achilles (131) 6,889,709 New Point Comfort (132) 6,801,460 17,033,988 sq. m 1,703.40 hectares 4,209.10 acres York River - 19 Toano(120) 0 Gressitt (121) 0 Norge (128) 0 Williamsburg (129) 0 Clay Bank (130) 14,832 Achilles (131) 3,081,945 37 Table 6 (Continued) SECTION QUADRANGLE AREA York River - 19 (continued) New Point Comfort (132) 3,581,465 Hog Island (138) 0 Yorktown (139) 16,805 Poquoson West (140) 1,204,477 Poquoson East (141) 0 7,899,524 sq. m 789.95 hectares 1,951.97 acres Lower Western Shore - 20 New Point Comfort (132) 0 Poquoson West (140) 4,207,382 Poquoson East (141) 10,075,026 Elliotts Creek (142) 0 Newport News North (146) 0 Hampton (147) 3,392,666 Norfolk North (150) 0 Little Creek (151) 0 Cape Henry (152) 283,343 Kempsville (156) 0 Princess Anne (157) 7,257 17,965,674 sq. m 1,796.57 hectares 4,439.32 acres James River - 21 Toano(120) 0 Westover (125) 0 Charles City (126) 0 Brandon(127) 0 Norge (128) 0 Williamsburg (129) 0 Savedge(135) 0 Claremont (136) 0 Surry (137) 0 Hog Island (138) 0 Yorktown (139) 0 Poquoson West (140) 0 Bacons Castle (144) 0 Mulberry Island (145) 0 38 Table 6 (Continued) SECTION QUADRANGLE AREA J ames River 21 (continued) Newport News North (146) 0 Hampton (147) 27,328 Benns Church (148) 0 Newport News South (149) 0 Norfolk North (150) 0 Little Creek (151) 0 Chuckatuck (153) 0 Bowers Hill (154) 0 Norfolk South (155) 0 Kempsville (156) 0 Princess Anne (157) 0 27,328 sq. m, 2.73 hectares 6.75 acres Chincoteague Bay Selbyville (165) 0 Assawoman Bay (166) 0 Berlin (167) 63,349 Ocean City (168) 197,897 Public Landing (169) 0 Tingles Island (170) 9,936,407 Girdle Tree (171) 0 Boxiron (172) 6,361,266 Whittington Point (173) 2,398,610 Chincoteague West (174) 0 Chincoteague East (175) 5,987,004 24,944,533 sq. m 2,494.45 hectares 6,163.79 acres 10, 39 adjacent to Eastern Neck, Eastern Neck Island, and in die lower Chester River. In this region Ruppia maritima was the most abundant of seven species reported. Middle Bay Zone In 1990 forty-eight percent (5,405 hectares) of the SAV in the Middle Bay zone was found in the Mid-Bay Island Complex (Section 13) which includes the broad shoal area between Smith and Tangier Islands. Ibis is an increase of 206 hectares over 1989. The two dominant species were R. maritima and Zostera marina. Twenty percent (2,287 hectares) of the SAV in this zone was present in the Middle Eastern Shore (Section 12), primarily in the Barren Island-Honga River area, the Big and Little Annemessex rivers, and the lower section of the Manokin River, with R. marilima being the dominant species reported. Little or no SAV was mapped or reported from the Central Western Shore (Section 5), Middle Western Shore (Section 9), and Patuxent River (Section 8). The Middle Bay zone also includes the entire Potomac River, where 3,054 hectares of SAV were present in 1990. SAV was concentrated in two distinct regions: 1. the Upper Potomac River (Section 11) with 2,522 hectares, where Hydrilla verticillata remained the numerically dominant species (eight other species were reported by the COG, VIMS, USFWS, and'Citizen's surveys); and 2. the upper portion of the Lower Potomac River (Section 10) with 532 hectares, including Nanjemoy Creek and Port Tobacco River, with V. americana and M. spicatum being the most frequently reported species. Although the total abundance of SAV in the Upper Potomac section increased from 1989 by 524 hectares, it decreased in the Lower Potomac section by 83 hectares. SAV in the Eastern Bay (Section 6) decreased 443 hectares from 1989 to a total of 389 hectares in 1990, while in the Choptank River (Section 7) it declined 672 hectares from 1989 to a total of 193 hectares in 1990. Lower Bay Zone Distribution and abundance in 1990 in the Lower Bay zone were similar to 1989. Forty-five percent (4,829 hectares) of SAV in this zone was found in the Lower Eastern Shore (Section 14) around the Fox Islands and the mouths of major creeks (i.e. Cherrystone Inlet and Hungars, Mattawoman, Occahannock, Craddock, Pungoteague, and Onancock creeks). Along the western shore of the Chesapeake Bay, SAV was abundant in Mobjack Bay (Section 18) (16% of SAV in the Lower Bay zone), in the lower York River (Section 19) (7% of SAV in the Lower Bay zone), and in the Lower Western Shore (Section 20), specifically Back River and Drum Island Flats area adjacent to Plum Tree Island (17% of SAV in the Lower Bay zone). There were 609 hectares of SAV mapped in the Reedville Region (Section 15) in 1990, a 24% increase over 1989. There were 357 hectares of SAV identified in 1990 in the New Point Comfort Region (Section 17) compared to 346 hectares in 1989. Both R. maritima and Z. marina were abundant throughout this zone. SAV abundance was down slightly from 1989 in both the Piankatank and Rappahannock rivers (Section 16). Ruppia maritima was the dominant species in those rivers, with Zostera marina also present as a result of previously successful transplant efforts. The James River (Section 21) had less than 3 hectares of SAV in 1990, which is one hectare less than in 1989. 40 Chincoteague Bay SAV in Chincoteague Bay increased s lightly in distribution from 1989, with 2,494 hectares mapped in 1990. All of the SAV consisted of R. maritima and Z. nwrina, and was located along the eastern side of the bay behind Assateague Island. DISCUSSION OF SECTIONS ARRANGED WITHIN ZONES Upper Bay Zone 1. SUSQUEHANNA FLATS There were 1,774 hectares of SAV in the Susquehanna Flats section in 1990 (Tables 4-6; Fig. 8; Appendix C, Maps 2, 3, and 9) compared to 1,945 hectares mapped in 1989. The majority (92%) of the total SAV area is categorized as very sparse and one large bed in the Havre de Grace quadrangle comprises most of this area (1,496 hectares). Beds in the Susquehanna River are denser than what was reported in 1989. SAV beds were located principally in two main areas: 1. sparse to dense fringing beds in the Susquehanna River consisting primarily of M. spicatum, with P. pectinatus, C. demerswn, V. americana,fieteranthera dubia, H. verticillata, and Najas spp. in lesser amounts from Spencer Island to the river mouth at Havre de Grace on the west side, and to Stump Point at the mouth of Mill Creek on the north side; and 2. a large area of very sparse SAV located in the broad shoal area at the river mouth. This broad shoal consisted primarily of small patches of M. spicatum. A total of eight species (M. spicatum, H. dubia, V. americana, H. verticillata, C. demersum, P. pectinatus, P. perfoliatus, and Najas spp.) have been reported either by Stan Kollar of Harford Community College, the University of Maryland's HPEL, or the Citizen's and the Charterboat Captain's surveys. SAV beds consisted of up to six species, with M. spicatum being dominant in most beds while V. americana was dominant in three beds. Heteranthera dubia, H. verticillata, C. demersum, and Najas spp. also occurred in significant amounts. SAV remains virtually absent from the Northeast River, Swan Creek, Spesutie Island, and the western side of Elk Neck. 2. UPPER EASTERN SHORE There were 421 hectares of SAV mapped for the Upper Eastern Shore section in 1990 (Tables 4-6; Fig. 9; Appendix C, Maps 4,5,9,10,15,16,17, and 21) compared to 308 hectares mapped for 1989, consisting of very sparse and sparse beds (10% and 90% respectively, of the total coverage within section 2). Principal locations of beds were in the Elk River, mouth of Bohemia River, Swan Creek, lower Sassafras River, Still Pond and the mouth of Chum Creek. Very little SAV was mapped in the Bohemia River and along the mainstern of the bay from Still Pond to Swan Point. This section has contained relatively little SAV since the first baywide SAV survey in 1978, although historically this section has contained abundant SAV (Stevenson and Confer, 1978). Myriophyllum spicatum and V. americana were the two most commonly reported species, with seven other species (H. verticillata, Najas spp-, P. pectinatus, H. dubia, 41 3937. 5--, -002 003 004 005 .0 HAVRE DE GRACE U UEHAN FLATS 3930.0 -008 SWAN CREEK@ Oil ESLITIE SLAND 009 010. 3922. 5@ d 0 in 0 in 0 Ui 0 Ui 0 vn I-* (0 to LO U-) Figure 8. Distribution of SAV in.the Susquehanna Flats (Section 1). r L SUT E C, U SLA 009 42 3945. 3937. 5 003 00-4 005 3930. 0 009 ]A R. 010 3922. 5 SASSAF e[L -0 15 P 16 0 17 3915. 0 0, -020 022 21 %,-'023 3907. 5 IH in Ln C@ Ui CIj Ui T- 0 In It to (0 (0 in in Figure 9. Distribution of SAV in the Upper Eastern Shore (Section 2). 0 005 04 2@ S M P 43 and Potamogeton crispus ) reported in lesser amounts as determined by Stan Kollar of Harford Community College and the Citizen's and Charterboat Captain's surveys. 3. UPPER WESTERN SHORE There were 90 hectares of SAV mapped from the aerial photographs in 1990 for the Upper Western Shore section (Tables 4-6; Fig. 10; Appendix C, Maps 13 and 14) compared to 38 hectares in 1989. SAV beds were concentrated in Saltpeter and Dundee creeks. Very little or no SAV was reported in the Back, Patapsco, Bush, Gunpowder, Middle, and Magothy rivers. Myriophyllum spicatum, E. canadensis, Z. palustris, P. pectinatus, P. crispus, Chara spp., R. maritima, N. quMalupensis, and V. americana were reported by the Citizen's and Charterboat Captain's surveys (Maps 13, 14, 18, 19, and 24). 4. CHESTER RIVER There were 67 hectares of SAV in the Chester River section in 1990 (Tables 4-6; Fig. 11; Appendix C, Maps 20, 21, 26, and 33) compared to 167 hectares in 1989. SAV was located adjacent to Eastern Neck and Eastern Neck Island, especially near Eastern Neck Narrows, and in Robins Cove in the Chester River. Additional beds are found in Rock Hall Harbor,The Haven, Swan, and Huntingfield creeks, located above Eastern Neck on the Chesapeake Bay. Five species of SAV were reported from this section in 1990 by the Citizen's, Charterboat Captain's, Univ. of Maryland's HPEL, and USFWS surveys. Ruppia maritima and P. perfoliatus were by far the most commonly reported species in this section with P. pectinatus, M. spicatwn, E. canadensis, and Z. palustris being reported less frequently. The large, dense beds of R. maritima present in previous surveys in the Chester River are no longer present, or are in very reduced abundance. Middle Bay Zone 5. CENTRAL WESTERN SHORE There was no SAV observed from the aerial photography in the Central Western Shore section in 1990 (Tables 4-6; Fig. 12) which was similar to 1989. Although not evident in the aerial photography, the USFWS and the Citizen's survey reported SAV from a few sites in this section, primarily the Severn River, Blackwalnut Creek, Lake Ogleton, South Creek of the West River, Duvall, Beards, and Almshouse Creeks and Selby Bay of the South River, and Burley Creek (Maps 23, 24, 30, 3 1, and 35). Species reported from this section include Z. palustris and R. maritima. 6. EASTERN BAY There were 389 hectares of SAV identified from the Eastern Bay section in 1990 (Tables 4-6; Fig. 13; Appendix C, Maps 32, 33, 36, and 37) compared to 831 hectares reported in 1989. SAV occurred as very sparse to sparse beds throughout this section 44 3930. OVIIIIIIIIIIIII IIIIIIIIIIIIII 007 006 /1007 008 009 -LL 3922.5 013 3915.01 ,014 15 016 020 021 022 \0 1 a 019 3907. 5 n 024 025 .023 11111 J, 1, 3900.003,11"I'll'', 111,11, lt@ 0 tn 0 Ln 0 in Ui C14 in 4. to in 0 W (0 (0 (0 to (0 r- Figure 10. Distribution of S" in the Upper Western Shore (Section 3). AL 'a 14 0 2 *3 I'l 45 n3o. 0 11 1111 If III III [I I I t@l I I If I III I I I I I I I I I I LO III I I I I I III I 007 006 ,'0 0 7 0 0 8 VN. 009 3922. 5 013 0 .0014 _e[(115 016 3915. 0 10 'T'r 11,X 020 021 022 \018 019 3907. 5 . @@n rL (_; I 024 025@ 023 3900. 0-- 111111111111 Idi 0 C"I Figure 10. Distribution of SAV in the Upper Western Shore (Section 3). 45 021 022 3907. 5 - V -025 CRA 027- Ys TNN 026 cl-le 0- .1 4 - 3900. 0 032 3852. 5@ 1 in in 0 C@ Ui r C14 0 (0 (0 t- Figurell. Distribution of SAV in the Chester River (Section 4). 46 3907. 5A 024 1 0251 1 3900. 0 023 %A 050 RHODE RA. 0 3 1 032 3852. 5 035 036 3845. 0 042 043 3837. 5rl I I I I IIII I I II IIIIIIIIIIIIII I III I I I I I I I Ln 0 in 0 04 N MO 3 2 Figure 12. Distribution of SAV in the Central Western Shore (Section 5). 47 3990000. 00 031 .033 @os?fc IJARSON I SL. :5852. 5 032 '@@O 3 6 037 40 <11P 3845. 0 1VULr zw ILGHMAN I SL. 043 044 L" I I I I I I Ln Figure 13. Distribution of SAV in the Eastern Bay (Section 6). A@0@37 T 48 (22% and 54% of the total SAV coverage within section 6, respectively). In 1990 SAV was identified as being particularly abundant along both shorelines in Cox Creek, Crab Alley Bay, the eastern shore of lower Kent Island, Parson Island, Piney Neck, and the lower portion of the Miles River. Little SAV was present from Punch Point on the Western shore of Eastern Bay to Pawpaw Cove on Tilghman Island, as, well as in the Miles and Wye River. Ruppia maritima, P. pectinatus, Z. palustris, and P. perfoliatus were reported by the FWS, University of Maryland HPEL, the Charterboat Captain's, and the Citizen's surveys (Maps 32, 33, 36, 37, and 38). 7. CHOPTANK RIVER There were 193 hectares of SAV observed in the Choptank River section in 1990 (Tables 4-6; Fig. 14; Appendix C, Maps 43,44, 51, 52, and 62) compared to 865 hectares in 1989. Most of the SAV occurred in sparse (27%) to moderate (53%) beds in only a few areas. SAV was found at the mouth of Harris Creek, Leadenham Creek off Broad Creek, Brannock Bay, the mouth of Chapel Creek, Cook Point Cove, Covey Creek, and Cators Cove. There is little or no SAV in Broad Creek, Tred Avon River, and much of the Little Choptank River. Vegetation above Chapel Creek in the Choptank River is sparse but not completely absent. Ground surveys by Citizens and Charterboat Captains, as well as scientists from the University of Maryland's BPEL, located three species of SAV in this section (Maps 36,43, 44, 51, 52, and 62) with R. maritima being the most prevalent. Potamogelon pectinatus and Z. palustris were observed in scattered locations. 8. PATUXENT RIVER There was no SAV observed from the aerial photography in the Patuxent River dk section in 1990 (Tables 4-6; Fig. 15) compared to 3 hectares reported in 1989. There were sporadic sightings of four SAV species in the Patuxent River by the the Maryland Capital Parks and Planning Commission and Citizen's surveys (Maps 41, 49, 61, 70, 7 1, and 159). Those species reported from the lower sections of the river were P. pectinatus, Z. palustris, and R. maritima. Species found from the upper sections of the river were V. americana, C. demersum, P. epihydrus, Najas guadalupensis, Najas gracillima, Najas minor, Z. palustris, E. canadensis, P. crispus, P. pusillus, and Najas spp. 9. MIDDLE WESTERN SHORE There were no SAV beds identified in the Middle Western Shore section in 1990 (Tables 4-6; Fig. 16) which was similar to 1989. There were three observations from Citizen's ground surveys in 1990 with reports of R. maritima at two sites and an unidentified species at the third (Map 71). 10. LOWER POTOMAC RIVER There were 532 hectares of SAV identified in the Lower Potomac River section from the 1990 aerial photography (Tables 4-6; Fig. 17; Appendix C, Maps 56, 57, 58, 65, 66, and 67) compared to 616 hectares reported in 1989. Most of the SAV occurred 49 3852.5. 1 036 037 0 3 8 3845.0 Cn x ILGHMAN *-t 043 044 045- 3837.5 C; 051 BRANNOCK BAY d1k w 052 053 3830. 0 0�3 -062 3822. 5+11 1 1 1 1 1 1 -4 to C) LO N LO C14 C) (0 CO @O4 3 Figure 14. Distribution of SAV in the Choptank River (Section 7). 50 3837. 5 11 Ili IrT-rT-r- -049 050 3830. 0 M 060 061 3822. 5 059 -069 070 071 3815.0 11111 In 0 in In (0 W Figure 15. Distribution of SAV in the Patuxent River (Section 8). b i 51 W4 3845. 0 -042 043 3837. 5 -050 051 3830. 0 61 @,7 0 060 062 3822. 5 k-(@. Cj - -070 072 Jy 3815. 0 071 079 080 081 082 N 3807. 5 088 089 090 3800. 0 IIIpIa+IIIIIIIjj-L IIIIIIIIIIIII-L LO CD to 0 LO C@ to roses 3-L@L Figure 16. Distribution of SAV in the Middle Western Shore (Section 9). 52 0,11111111111111 1111!All 11111111111111111 11111 1 11 1111111111111 1111111TTM11- -056 05-/ PpRT TOBACC) 05 06 0 061 fe @ RIVER NA e y 058 162 REEK IV L 4_7, --,Wl COMI C 3822.5 'A lq@IVER 4t@0 067 68 069 T 065 066 070 07 3815.0 0 Z9 0 li!,- 41 's POTOM RIVER 76 077 3807.5 z z 086 087 3800.0 z 094 095 096@ 09 3752. 5-,)[LLILIILiliil.LLlllillillililI 11111111 -1-"M 0 Ln C) Ln Ln C) Ln L 0 Clq Ln 0 C*4 0 in --t r) r) N (0 W (0 M to Figure 17. Distribution of SAV in the Lower Potomac River (Section 10). 8 6 5 6 J L Z@ @NA U R E 97 11 6\1 @@l 6 0 6 r5 @@094 - 0 9 5. 53 in the region near the Route 301 bridge, in Nanjemoy Creek and Port Tobacco River, and in the shoreline adjacent to these two creeks. SAV beds were fringing along the eastern side of Mathias Point Neck to just below the Route 301 bridge. Several small beds were observed in Machodoc, Rosier, and Cuckhold Creeks. VIMS surveys reported V. americana, P. pectinatus, and P. perfoliatus at Windmill Point on the Port Tobacco River, and V. americana at Upper Cedar Point, Mathias Point (Map 57), and below the Route 301 bridge on the mainstern Potomac River (Map 66). Citizen's survey observations reported Z. palustris at the mouth of the Wicomico River (Map 68), Breton Bay (Map 69), and Herring Creek (Map 79). The USFWS reported V. americana, M. spicatum, P. perfoliatus, C. demersum, P. pectinatus, P. crispus, E. canadensis, and H. verticillata in the Port Tobacco River. The Charterboat Captain's survey reported unidentified SAV from the Potomac River and tributary creeks (Maps 56, 66, and 67). 11. UPPER POTOMAC RIVER There were 2,522 hectares of SAV mapped in the Upper Potomac River section (Tables 4-6; Fig. 18; Appendix C, Maps 34, 39,40,47,48, 55, 65, and 161) in 1990 compared to 1,998 hectares reported in 1989. A total of 72% of the SAV beds were densely vegetated (density class 4). SAV beds from the Woodrow Wilson Bridge (except those in the middle of the river - Map 34, beds BB4, HB4, and GB3) to just below Piscataway Creek remain reduced in coverage from 1987 as in 1989. SAV distribution in the Alexandria and Mount Vernon quadrangles increased 8% and 7% repectively from 1989 but was still less than that in 1987 (15% and 66%, respectively). In the portion from Quantico to Aquia Creek in 1990 SAV continued to increase from 1987 abundances , with large increases from 1989 in the Indian Head (184.01 to 303.67 hectares), Widewater (466.64 to 614.54 hectares), and Fort Belvoir (63.48 to 105.06 hectares) quadrangles. King George quad had similar SAV abundance (35.37 hectares) to that in 1989. SAV is still absent from Occoquan Bay and Belmont Bay. Extensive groundtruth surverys were conducted by the Council of Governments (Maps 29, 34, 39, 40,47, 48, and 55) while the Citizen's survey reported SAV from Maps 34,40, and 47. There were nine species identified from this section in 1990. Hydrilla verticillata was reported from Aquia, Chopawamsic, Quantico, Mattawoman, Chicamuxen, Dogue, Pomonkey, Piscataway, Swan, and Broad Creeks, Gunston Cove, the Anacostia River, and both sides of the mainstern Potomac River from Washington D.C. to Aquia Creek. Other species reported from this section included M. spicatum, C. demersum, H. dubia, N. minor, V. americana, N. guadalupensis, E. canadensis, N. gracillima, and Najas spp. 12. MIDDLE EASTERN SHORE There were 2287 hectares of SAV identified in the Middle Eastern Shore section (Tables 4-6; Fig. 19; Appendix C, Maps 63, 72, 73, 74, 82, 83, 84, 85, 92,93, 100, and 101) in 1990 compared to 1,998 hectares reported in 1989. SAV beds, of which 39% were dense (class 4), 27% moderate (class 3), 25% sparse (class 2), and 8% very sparse (class 1) were very abundant in: 1. the Honga River, 2. between Barren Island and Meekins Neck-Upper Hooper Island, and 3. the lower Manokin and the Big and 54 3852. 5 034 3845. 0 039 C: A', 3837. 5 040 047 161 ATTAWOMAN @UA 0 CFEEK CREE 048 3830.0 055 056 057 NJEMOY-@ AQJIA R. REEK 0 0 3822. 5 064 66 3815. 0 bLjllII11@11111 II ILl I I I I I I I I J- LO LO Clq Ln Figure18. Distribution of SAV in the Upper Potomac River (Section 11). 0 @ 55 @56 0 5 7A:- 0 @ANJE R CREE 065: 0 L66 55 38:50. 0+1 1 1 1.1pff I r 7 063 062 3822. 5 L 072 074 RXVE 75 164 073 60 X.. 3815.0 0 a 1 082 N @- 0 8 3 084 085-- LOODSWCRTH ISLA D 4-4. k- 3807. 5 o@&. 093-- sOUTF MARSH- ISLAND 92 090 091 ... ... 3800. 0 098 SMITF ISLAND L4 TLE AN ME55E RI R 099 100 1 1 3752. 5-f- _1111 fill 11111,11 LO M C@ r, M C14 C, CO CO LO tn Figure 19. Distribution of SAV in the Middle Eastern Shore (Section 12). 0 17 RXV 'E G \@O 7 3 -AVF- 0- 2@ 56 Little Annemessex Rivers. Few SAV beds were observed in Fishing Bay and in the Nanticoke and Wicomico Rivers. Ruppia maritima was the predominant species found by the HPEL, Citizen's, and Charterboat Captain's surveys (Maps 63, 72, 73, 74, 82, 83, 84, 85, 92,93, 100, and 101). Zostera marina was reported from several locations on the Marion (Map 93), Great Fox Island (Map 100), and Crisfield (Map 101) quadrangles. Zannichellia palustris was reported from Crisfield quad (Map 101) and Marion quad (Map 93). 13. MID-BAY ISLAND COMPLEX There were 5,405 hectares of SAV mapped in the Mid-Bay Island Complex in 1990 (Tables 4-6; Fig. 20; Appendix C, Maps 83, 91, 92,99, 100, and 107) compared to 5,199 hectares reported in 1989. This section contains 22.1% of the SAV in the entire Chesapeake Bay, an increase of 0.6% over 1990. However, the density of SAV has decreased since 1989. Forty-five percent of the SAV within this section was in density class 4 compared to 80% in 1989. Twenty-four percent of SAV within this section in 1990 was moderate in density (class 3), 19% was sparse (class 2), and 12% was very sparse (class 1). Groundtruth surveys were conducted by VIMS, BPEL, Citizens, and Charterboat Captains. The broad, expansive shoal area between Tangier Island and Smith Island continued to be densely vegetated by both R. maritima and Z. marina, and was by far the largest bed in the Chesapeake Bay. Ruppia maritima was the species most often reported by the surveys around these islands. Lower Bay Zone 14. LOWER EASTERN SHORE There were 4,829 hectares of SAV observed in the Lower Eastern Shore section in 1990 (Tables 4-6; Fig. 21; Appendix C, Maps 100, 101, 102, 107, 108, 109,113, 114, 119, 124, 133, 134, 142, and 143) compared to 4,718 hectares reported in 1989. Fifty-four percent of the total SAV is in density class 4; 11 % is in class 1; and 9% is in class 3. Species reported were primarily Z. marina and R. maritima with Z. palustris reported at a few sites. There were groundtruth observations from VIMS, Citizen's and Charterboat Captain's surveys (Maps 100, 10 1, 108, 113, 114, and 124). Large, dense beds continue to persist at the mouth of Cherrystone Inlet near Cape Charles, at the mouths of Hungars, Mattawoman, Occohannock, Craddock, Pungoteague, Onancock, and Chesconessex creeks, at the Big Marsh area near Chesconessex Creek, at Webb Island off the mouth of Deep Creek, and on the large shoal area on the eastern side of the Fox and Cedar Islands. The only SAV in the Pocomoke Sound area was on the eastern side of Watts Island. There was no SAV south of Old Plantation Creek just below Cape Charles. 15. REEDVILLE REGION There were 609 hectares of S AV identified in the Reedville Region in 1990 (Tables 4-6; Fig. 22; Appendix C, Maps 106 and 112) compared to 492 hectares reported in 1989. SAV beds were classified as 16% very sparse (class 1), 24% sparse 57 3815. 0 1 1 1 k I 1,F) jv@-m Y1 I I I I I I 1 1 1-7 083 08a 085- 3807. 5 092 SOU H MARSH I AND 091 093 3800. 0 099 100 SMITH SLAND 0 3752.5 101 108 TA GIER ISL ND 107 3745. 01 1 1 1 1 111111111 1 in 0 Ln r 0 C) 0 W W in V tv @'J@ 09@3@__ SL Figure 20. Distribution of SAV in the Mid-Bay Island Complex (Section 13). 58 3800. 0@ 09 ;100 101 GREAT 02 F 3752. 5 107 108 09 3745. 0 RS NCO 14 C EEK CO-E CUE 3737. 5 /113 CRII 119 3730. 0 UNGA FE 0 24 3722. 5 133 4 3715. 0 CYA L 14 142 3707. 5 3700. O-T- HL Ln Ln 0 Ln 0 in cli Ln U-) V) 04 (0 V) W) Ln Ln Ln Figure 21. Distribution of SAV in the Lower Eastern Shore (Section 14). r#GRE-AlTo 1 @012 F 7 Jilc@, . @07 E EC /KC) E CUFb r E ul-11 4] @c 59 ,0 3752. 5- 1 106 A 0 0 EETON PT. ERON R OZ@@MARSH 3745.0 112 ClIp FLEETS BAY .3737. 5-P--6 in to C'4 r- N 0 (0 r- Figure 22. Distribution of SAV in the Reedville Region (Section 15). 60 (class 2),41% moderate (class 3), and 19% dense (class 4). Ruppiamaritimaand Z. marina were the two species identified by VIMS and Citizen's surveys in 1990 (Maps 106 and 112). Most beds were found in Little Bay, Fleets Bay, Dymer Creek, Indian Creek, Dividing Creek, Ball Creek, Cloverdale Creek, Dameron Marsh, Ingram Bay, and Fleeton Point. 16. RAPPAHANNOCK RIVER COMPLEX There were 544 hectares of SAV observed in the Rappahannock River Complex in 1990 (Tables 4-6; Fig. 23; Appendix C, Maps 110, 111, 116, 117, 118, and 123) compared to 669 hectares reported in 1989. Although this was an 18.7% drop in abundance, it still is a considerable increase from the 208 hecatares mapped in 1987, or the 18 hectares mapped in 1986. SAV beds consisted mostly of sparse to moderate beds (35% in density classe 2; 44% in class 3), and 20% was dense (class 4). Ruppia maritima continues to be the dominant species in both the Rappahannock and Piankatank Rivers. In particular, dense beds of R. maritima were again present in the Corrotoman River (includes obervations from the Citizen's and VIMS surveys; Maps 110, 111, 117, 118, and 123). Ruppia maritima is now present in small scattered patches along the north shore of the Rappahannock River above Towles Point. Zostera marina, once a dominant species in this section (similar to the other sections in the lower bay) but rare since 197 1, is now present in small patches in both rivers. This is a result of successful transplant efforts using both seeds and whole plants in a number of different areas since 1984 (VIMS, unpublished data) and as a result of natural propagation from nearby beds, especially in the Piankatank River. In the Rappahannock River transplanted Z. marina is present adjacent to Parrott Island, off Sanders Cove just above the bridge, at the mouth of Carters Creek, at Ball Point, off Wharton Grove, and adjacent to Towles Point. Also reported by the VIMS survey at Parrot Island was Z. palustris. In the Piankatank River and Milford Haven area transplanted Z. marina is present off Burton Point, along the northeast side of Gwynn Island and at the mouth of Healy and Hills Creek. Naturally occurring Z. marina is present on the west side of Gwynn Island off The Hole in the Wall and off the northeast tip of the island, and in the Willis Wharf area. 17. NEW POINT COMFORT REGION were 357 hectares of SAV identified in the New Point Comfort Region in 1990 (Tables 4-6; Fig. 24; Appendix C, Map 132) compared to 346 hectares reported in 1989. As in 1989, SAV consisted of dense beds (68% in density class 4) of Z. marina and R. maritima between New Point Comfort and just north of Horn Harbor. Twenty-nine percent of the SAV was in density class 2 and the remainder was in density class 3. Groundtruth data was collected by the VIMS survey. 18. MOBJACK BAY COMPLEX The Mobjack Bay Complex contained 1,703 hectares of SAV in 1990 (Tables 4-6; Fig. 25; Appendix C, Maps 122, 123, 13 1, and 132) compared to 1,593 hectares reported in 1989. SAV beds consisting of Z. marina and R. maritima were most abundant along the entire shoreline of Mobjack Bay as well as in the four tributaries: 61 3745. 0- I-T-1I 1 10 1 112 ZC RROTOMAN R. 7- AR R CR 3737. 5 RAPPAJANNOCK -116 P 'AN A TANI@ RV. NN 3730. 0 12 2-,--@ 123 3722. 5 0 LO 04 C4 (0 (0 CO (0 Figure 23. Distribution of SAV in the Rappahannock River Complex (Section 16). L 6 62 3730. 0-1 123 3722. 5 132 MRN HARBOR M08JACK SAY EW F INT COM 3715. 0 In in N U) C'4 a co rl Figure 24. Distribution of SAV in the New Point Comfort Region (Section 17). 63 3730. 0 + Y4 1 122 123 C), OR TH R AST R. 3722. 5 MOB J ACK BAY VERN R WN'S ky 4 GUINEA MARSH 131 132 3715. 0-1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1. Ln 0 C14 to C*4 to w to Figure 25. Distribution of SAV in the Mobjack Bay Complex (Section 18). 10 1 1 3 64 Severn, Ware, North, and East Rivers. The Mobjack Bay area continued to harbor some of the more extensive SAV beds on the western shore of the lower Chesapeake Bay. Sixty percent of the total coverage of SAV in this section is in density class 4, similar to 1989. The next largest density class was 26% sparse (class 2), while 10% was moderate (class 3) and 4% was very sparse (class 1). Groundtruth observations include those from the Citizen's and VIMS surveys (Maps 122, 13 1, and 132). 19. YORK RIVER There were 790 hectares of SAV observed in the York River section in 1990 (Tables 4-6; Fig. 26; Appendix C, Maps 130,131, 132, 139, and 140) compared to 677 hectares reported in 1989. Seventy-three percent of the total coverage in this section is classified as dense (class 4) compared to 80% in 1989. Twenty-three percent of the SAV was in density class 2, 3% was in class 1, and the remainder was in class 3. Groundtruth observations were made by VIMS surveys (Maps 130, 131, 132, 139, and 140). Dense SAV beds consisting of both Z. marina and R. maritima were located principally along the north shore from Gloucester Point to the mouth of the river. Three small SAV beds, and one large bed located on the north side of Goodwin Islands, were present along the south shore downstream from the Naval Weapons Station. SAV beds were absent upstream of Gloucester Point on the north shore except for one small bed of Z. marina near Gloucester Point and two small beds of Z. marina (less than 1.5 hectares) adjacent to Big Mumfort Island, a result of VIMS transplanting efforts using seeds in 1989. The SAV beds planted at Gloucester Point in 1982 and 1983, as well as the smaller areas planted immediately adjacent to these larger areas from 1984 through 1988, continue to thrive in 1990 similar to many naturally expanding beds along the north shore. 20. LOWER WESTERN SHORE There were 1,797 hectares of SAV mapped in the lower Western Shore section in 1990 (Tables 4-6; Fig. 27; Appendix C, Maps 140, 141, 14 7, 152, and 157) compared to 1,670 hectares reported in 1989. Groundtruth surveys by Citizen's and VIMS (Maps 141 and 152) reported Z. marina and R. marifima. As in 1989, 60% percent of the total coverage in this section remained in density class 4. SAV was mapped in Broad Bay, Linkhorn Bay, Back River, the mouth of the Poquoson River off Pasture and Hunts Neck, Drum Island Flats, Poquoson Flats, adjacent to Crab Neck just south of Goodwin Island, and on the south side of Goodwin Island. No SAV was present in the southwest and northwest branches of Back River, or in the Poquoson River, Chisman Creek, and Back Creek. 21. JAMES RIVER There were not quite 3 hectares of SAV in the mainstern James River in 1990 (Tables 4-6; Fig. 28; Appendix C, Map 147), compared to 4 hectares in 1989. This small (2.7 hectare), dense bed located at the mouth of Hampton Creek adjacent to the Veteran's Hospital was not groundtruthed in 1990 but was reported to consist predominantly of Z. marina in 1989. A Citizen survey reported C. demersum and 65 3722. 5- 130 131 132 CL Ay BANK MOBJACK BAY GUINEA MAR SH 3715. 0 139 140 141 3707. 5 1 IN I I I I Ln Lr) C) 0 N Lr) C14 Figure 26. Distribution of SAV in the York River (Section 19). 13 1.. K At:n@ J@E 66 37 15. 0 111111111111 1111111111 11 11 1111111 -GOODWIN ISL. 00 Q@) DRUM ISLAND EOQU so R. FLATS 3707. 5 -13ACK RIVER 146 147 3700. 0 149 150 151 152 4ROAD-- BAY j Irk, I 1 1, I_! I 3652. 0 In 0 04 Cli C) (0 (0 (0 r- r@ rl Figure 27. Distribution of SAV in the Lower Western Shore (Section 20). 77+ U_ .2 67 3730. 0 cll@l 0, 3722. 5 125 126 12 130 1 27'@ 2 8\ 132 3715.0 13; 3 14 3 @8 1 9 140 3707. 5 136 137 145 \., - 1 144) @1,46' 3700. 0 1 47 14 8 4- 150 151 149 3652. 5 153 15 4 155 156 3645. 0 @0\ 3637. 5,r IIIIIIIIIIIIIIIIIIHIL IIIIIIIIIIIIIII IIIIIIIIIIIIIIIIIIIIIIIIIIIII Ln Ln C) Ln C) in a in C) in N tn C) C4 Ln r" 0 N Ln C14 tn -+ rn in Cli to CO to Figure28. Distribution of S" in the James River (Section 21). @@@l 2 5 2 j6 @l 30 12 139 401 Ml @4 4 4vv 5 51 Lr 156 68 dk Chara spp. further upstream in Herring Creek (Map 125), but no SAV was mapped from aerial photography for that quadrangle. CHINCOTEAGUE BAY There were 2,494 hectares of SAV identified in Chincoteague Bay in 1990 (Tables 4-6; Fig. 29; Appendix C, Maps 167, 168, 170, 172, 173, and 175) compared to 2,3 10 hectares reported in 1989. Eighty-four percent of the beds were moderate coverage (density class 3) and 9.8% were dense coverage (class 4). The Citizen's and MD-DNR surveys found both Z. marina and R. maritima throughout Chincoteague and Sinapuxent Bays (Maps 167, 168, 170, 172, 173, and 175). Only R. maritima was reported from Assawoman Bay (Map 166). All of the SAV continues to be present on the eastern side of the bay adjacent to Assateague Island in water depths of less than 1 meter (ULW). The vegetation was concentrated in four relatively distinct areas identical to that reported in the 1986, 1987, and 1989 surveys. They were located west of the northern end of Chincoteague Island, and west of West Bay, Green Run Bay, and the Tingles Island area. Eight percent of the total bottom of this region (32,536 hectares) supported SAV in 1990 compared to 7% in 1989. 69 75' 30' 75' 15' Isle of Wight Bay N Ocean CitY 38' 38' 15' 15' Ti Isl Ohl 4 Gre If li@ A TL A N TI C 0 CEAN West Ba 38' 38' 75' 30' 75' 15' Figure 29. Distribution of SAV in Chincoteague Bay. 70 LITERATURE CITED Anderson, R. R. and R. T. Macomber. 1980. Distribution of submersed vascular plants, Chesapeake Bay, Maryland. Final Report to U.S. EPA, Chesapeake Bay Program. Grant No. R805970. 126 pp. Chesapeake Executive Council. 1989. Submerged Aquatic Vegetation Policy for the Chesapeake Bay and Tidal Tributaries. Annapolis, MD. July. Chesapeake Executive Council. 1990. Implementation Plan for the Submerged Aquatic Vegetation Policy. Annapolis, MD. July. Environmental Systems Research Institute, Inc. 1989. Volume I & II, User Guide. ESRI, Redlands, CA. Godfrey, R. K and J. W. Wooten. 1981. Aquatic and Wetland Plants of Southeastern United States: Dicotyledons. The University of Georgia Press, Athens. 933 pp. Godfrey, R. K and J. W. Wooten. 1979. Aquatic and Wetland Plants of Southeastern United States: Monocotyledons. The University of Georgia Press, Athens. 712 pp. Harvill, A. M. Jr., C. E. Stevens and D.--M. E. Ware. 1977. Atlas of the Virginia Flora: Part 1, Pteridophytes through Monocotyledons. Virginia Botanical Associates, Farmville. 59 pp. Harvill, A- M. Jr., T. R. Bradley and C. E. Stevens. 1981. Atlas of the Virginia Flora: Part II, Dicotyledons. Virginia Botanical Associates, Farmville. 148 pp. Humm, Harold J. 1979. The Marine Algae of Virginia. Special Papers in Marine Science, Number 3, Virginia Institute of Marine Science. The University Press of Virginia, Charlottesville. 263 pp. Kartesz, J. T. and R. Kartesz. 1980. A Synonymized Checklist of the Vascular Flora of the United States, Canada and Greenland: Volume II, The Biota of North America. The University of North Carolina Press, Chapel Hill. 498 pp. Orth, R. J. and K. A. Moore. 1981. Submerged aquatic vegetation in the Chesapeake Bay: past, present and future. pp. 271-283. In: Proc. 46th North American Wildlife and Natural Resources Conf., Wildlife Manage. Inst., Wash., D.C. Orth, R. J. and K. A. Moore. 1982. The biology and propagation of Zostera marina, eelgrass, in the Chesapeake Bay, Virginia. Final Report to U.S. EPA, Chesapeake Bay Program. Grant No. R805953. 187 pp. Orth, R. J. and K. A. Moore. 1983. Chesapeake Bay: an unprecedented decline in submerged aquatic vegetation. Sci. 222:51-53. Orth, R. J. and K. A. Moore. 1984. Distribution and abundance of submerged aquatic vegetation in Chesapeake Bay: an historical perspective. Est. 7:531-540. 71 Orth, R. J. and K. A. Moore. 1988. Submerged aquatic vegetation in the Chesapeake Bay: A barometer of Bay health. pp. 619-629. In: M. Lynch (Ed.), Understanding the Estuary: Advances in Chesapeake Bay Res. Chesapeake Res. Consort. Pub. No. 129. CBP/TRS/24/88. Orth, R. J., K. A. Moore and H. H. Gordon. 1979. Distribution and abundance of submerged aquatic vegetation in the lower Chesapeake Bay, Virginia. Final Report to U.S. EPA, Chesapeake Bay Program. EPA-600/8-79-029/SAV1. Orth, R. J. and J. F. Nowak. 1990. Distribution of submerged aquatic vegetation in the Chesapeake Bay and tributaries and Chincoteague Bay - 1989. Final Report to U.S. EPA. 247pp. Orth, R. J., J. Simons, R. Allaire, V. Carter, L. Hindman, K. Moore and N. Rybicki. 1985. Distribution of submerged aquatic vegetation in the Cheapeake Bay and tributaries - 1984. Final Report to U.S. EPA, Coop. Agreement X-003301-01. 155 pp. Orth, R. J., J. Simons, J. Capelli, V. Carter, L. Hindman, S. Hodges, K Moore and N. Rybicki. 1986. Distribution of submerged vegetation in the Chesapeake Bay and tributaries - 1985. Final Report to U.S. EPA. 296 pp. Orth, R. J., J. Simons, J. Capelli, V. Carter, A. Frisch, L. Hindman, S. Hodges, K. Moore and N. Rybicki. 1987. Distribution of submerged aquatic vegetation in the Chesapeake Bay and tributaries and Chincoteague Bay - 1986. Final Report to U.S. EPA. 180 pp. Orth, R. J., A. A. Frisch, and J. F. Nowak. 1988. Quality assurance project plan for the 1987 submerged aquatic vegetation distribution and abundance survey of the Chesapeake and Chincoteague Bays. Plan submitted to U.S. EPA, Chesapeake Bay Liason Office, Annapolis, MD. 47 pp. Orth, R. J., A. A. Frisch, J. F. Nowak, and K A. Moore. 1989. Distribution of submerged aquatic vegetation in the Chesapeake Bay and tributaries and Chincoteague Bay - 1987. Final Report to U.S. EPA. 247pp. Radford, A. E., H. E. Ahles and C. R. Bell. 1968. Manual of the Vascular Flora of the Carolinas. The University of North Carolina Press, Chapel Hill. 1183 pp. Stevenson, J. C. and N. Confer. 1978. Summary of Available Information on Chesapeake Bay Submerged Vegetation. U.S. Dept. of Interior, Fish and Wildlife Serv. FWS/OBS-78/66. 335 p. Wood, R. D. and K Imahori. 1965. A Revision of the Characeae: Volume 1, Monograph of the Characeae. Verlag Von J. Cramer, Weinbeim. 904 pp. Wood, R. D. and Y, Imarhori. 1964. A Revision of the Characeae: Volume 11, Iconograph of the Characeae. Verlag Von J. Cramer, Weinheim. 395 icones with Index. 72 APPENDICES 73 APPENDIXA Species Of Submerged Aquatic Plants Found In The Chesapeake Bay And Tributaries Exclusive of the Marine Algae (Classification And Nomenclature Derived From: Godfrey And Wooten, 1979, 1981; Harvill et al., 1977, 1981; Kartesz And Kartesz, 1980; Radford et al., 1968; Wood And Imahori, 1965,1965) Family Species Common name Characeae Chara braunii Gm. Muskgrass (muskgrass) Chara zeylanica 10ein. ex Willd., em. Nitella flexilis (L). Ag., em. Stonewort Potamogetonaceae Potamogeton perfoliatus L. var. (pondweed) bupleuroides (Fernald) Farwell Redhead grass Potamogeton epihydrus Leafy pondweed Potamogeton pectinatus L. Sago pondweed Potamogeton crispus L. Curly pondweed Potamogeton pusillus L. Slender pondweed Ruppiaceae Ruppia maritima L. Widgeon grass Zannichelliaceae Zannichelliapalustris L. Homed pondweed Najadaceae Najas guadalupensis (Sprengel) Southern naiad Magnus Najas gracillima (A. Braun) Magnus Naiad Najas minor Allioni Hydrocharitaceae Vallisneria americana Michaux Wild celery, tapegrass (frogbit) Elodea canadensis (Michaux) Common elodea Egeria densa Planchon Water-weed Hydrilla verticillata (L.Q Hydrilla Boyle Pontedariaceae Heteranthera dubia (Jacquin) Water stargrass (pickerelweed) MacMillian Ceratophyllaceae Ceratophyllum demersum L. Coontail (coontail) Trapaceae Trapa natans L. Water chestnut Haloragaceae Myriophyllum spicatum L. Eurasian (watermilfoil) watermilfbil Zosteraceae Zostera marina (L.) Eelgrass 74 Aev X 2 LL Figure 30. Illustration of Chara spp. (Muskgrass): 1. habit, upper portion of plant with branchlet whorls; 2. axial node and fertile branchlets with oogonia; 3. oogonium; 4. branchlet end segment; 5. axial node with 2 tier stipulodes. 75 n:7 OQ 6"'G 0 Oda 00 90 0 4 00 0 0 0 0 0 0 too it tj Figure 31. Illustration of Nitella spp. (Stonewort): 1. habit, entire plant; 2. portion of ecorticate branchlet; 3. mucus cloud surrounding compacted upper whorls with gametangia. 76 Figure 32. Illustration of Najas guadalupensis (Southern naiad): 1. habit, portion of plant; 2. branches; 3. leaf-, 4. female flowpr; 5. male flower. 77 dIL dim, RW Figure 33. Illustration of Vallisneria americana (Tapegrass): 1. female plant; 2. male plant; 3. leaf tip with longitudinal air channels; 4-5. male flower (two views); 6. female flower. 78 LL Figure 34. Illustration of Egeria spp. (Water-weed): 1. habit, end of branched stem with flower; 2. leaf whorl; 3. leaf; 4, female flower; 5. male flower. 79 turion 3 tuber underside of leaf 2 Figure 35. Illustration of Hydrilla verticillata (Hydrilla): 1. habit, entire plant; 2. leaf-, 3. turion; 4. male flower; 5. female flower and leaf whorl. J 80 HYDRILLA ELODEA EGERIA FLOWERS (bar shows approximate size) H C@ DRAWINGS TO SCALE LEAF ARRANGEMENTS (bar shows approximate length of leaf) HYDRILLA ELODEA EGERIA Figure 36. A comparison: illustrations of Hydrilla. verticillata, Elodea canadensis, and Egeria spp. 81 HYDRILLA ELODEA EGERIA 9 Mk Figure 37. A comparison: illustrations of Hydrilla verticillata, Elodea canadensis, and Egeria spp. showing ends of stems with flowers; leaf whorls; single leaves. 82 Figure 38. Illustration of Ceratophyllum demersum (Coontail): 1. habit, portion of plant; 2. leaf whorl; 3. flower in axil of whorl with branches; 4. fruit. 83 Y-71) Figure 39. Illastratioll of Trqp(2 Aotdn$ (xA74ter I- habit pOrton of mature plant; 2. flow#r; 3. Seedling. 84 L Figure 40. Illustration of Myriophyllum spicatum (Eurasian watermilfoil): 1. habit, upper portion of plant with flower spike bome above water; 2. leaf whorl; 3. female and male flowers on spike. 0 85 APPENDIX B Latitude And Longitude Coordinate Points Defining the 21 Major Chesapeake Bay Sections and Chincoteague Bay. (For section locations and descriptions see Fig. 7 and Table 3.) Latitude Longitude Latitude Longitude Deg Min Deg Min Deg Min Deg Min SEC. 1. Susquehanna Flats SEC. 5. Central Western Shore 39 27.00 76 10-00 38 42* 90 76 35.00 39 39.15 76 10.00 38 55 *00 76 37.50 39 39.15 75 51.00 39 12*40 76 49.00 39 27.50 76 00.00 39 11.15 76 40.00 39 26.50 76 01.31 39 06.82 76 35.40 39 03.50 76 32.30 SEC. 2. Upper Eastern Shore 39 00.00 76 20.00 38 55.00 76 25.00 39 10.00 76 20.00 38 45.00 76 25.00 39 20.00 76 12.50 39 26.50 76 01.31 SEC. 6. Eastern Bay 39 27.50 76 00-00 39 39.15 75 51.00 38 45.00 76 25.00 39 39.15 75 45.00 38 55.00 76 25.00 39 19.50 75 45.00 39 00.00 76 20.00 39 20.00 76 00 '.00 39 00.00 76 19.10 39 12.55 76 10.40 38 57.10 76 11.85 39 09.25 76 16.00 39 05.00 76 00.00 38 50.00 76 01.65 SEC. 3. Upper Western Shore 38 44.10 76 10.50 38 50.00 76 16.50 39 12.40 76 49.00 38 45.00 76 20.00 39 30.00 76 20.00 38 42.50 76 20.50 39 27.00 76 10.00 39 26.50 76 01.31 SEC. 7. Choptank River 39 20.00 76 12.50 .39 10.00 76 @ 20.00 38 23.50 76 20.00 39 00.00 76 20.00 38 45.00 76 25.00 39 03.50 76 32.30 38 42.50 76 20.50 39 06.82 76 35-40 38 45.00 76 20.00 39 11.15 76 40.00 38 50.00 76 16.50 38 44.10 76 10.50 SEC. 4. Chester River 38 50.00 76 01.65 39 05.00 76 00.00 39 00.00 76 20.00 39 05.00 75 45.00 39 10.00 76 20.00 38 45.00 75 45.00 39 09.25 76 16.00 38 45.00 75 50.00 39 12.55 76 10-40 38 21.93 75 55.00 39 20.00 76 00-00 38 25.00 76 06.80 39 19.50 75 45.00 39 05.00 75 45.OQ 39 05.00 76 00-00 38 57.10 76 11.85 39 00.00 76 19.10 86 Latitude Longitude Latitude Longitude Deg Min Deg Min Deg Min Deg Min SEC. 8. Patuxent River SEC. 11. Upper Potomac River 38 15.00 76 25.45 38 15.00 77 06.40 38 35.00 77 00.00 39 20.00 77 24.80 38 58.00 76 45.00 38 27.65 77 25.00 38 55.00 76 37.50 39 01.80 77 17.10 38 42.90 76 35.00 38 59.00 76 45.00 38 30.00 76 32.30 38 35.00 77 00.00 38 21.66 76 23.50 38 24.20 77 14.08 38 18.00 76 22.83 38 20.00 77 09.40 SEC. 9. Middle Western Shore SEC. 12. Middle Eastern Shore 38 02.85 76 19.40 38 11.10 76 13.30 49 38 05.00 76 21.54 38 23.50 76 20.00 38 15.00 76 25.45 38 25.00 76 06.80 38 18.00 76 22.83 38 21.93 75 55-00 38 21.66 76 23.50 38 45.00 75 50.00 38 30.00 76 32.30 38 40.00 75 37.00 38 42.90 76 35.00 38 00.00 75 38.00 38 45.00 76 25.00 38 00.73 75 49.50 41 38 23.50 76 20.00 37 57.10 75 50.30 38 05.00 76 10-00 37 55.00 75 55.10 38 11.70 75 59.00 SEC. 10. Lower Potomac River 38 13.60 76 05.83 37 53.40 76 14.45 SEC. 13. Mid-Bay Island Complex 37 55.50 76 18.15 37 53.85 76 28.00 37 45.00 75 58.30 38 06.15 76 53.00 37 50.00 76 10.00 38 15.00 77 06.40 38 05.00 76 10.00 38 20.00 77 09.40 38 11.10 76 13.30 38 24.20 77 14.08 38 13.60 76 05.83 38 35.00 77 00-00 38 11.70 75 59.00 38 15.00 76 25.45 37 55.00 75 55.10 4D 38 05.00 76 21.54 38 02.85 76 19AO SEC. 14. Lower Eastern Shore 38 05.00 76 10.00 37 50.00 76 10-00 37 00.00 75 58.95 37 20.00 76 10-00 37 38.75 76 10-00 37 50.00 76 10.00 37 45.00 75 58.30 37 55.00 75 55.10 37 57.10 75 50.30 38 00.73 75 49-50 38 00.00 75 38.00 38 00.00 75 30.00 37 46.45 75 39.30 37 20.00 75 55-50 87 Latitude Longitude Latitude Longitude Deg Min Deg Min Deg Min Deg Min SEC. 15. Reedville SEC. 18. Mobjack Bay Complex 37 38.75 76 10.00 37 17.00 76 19.33 37 37.40 76 21.40 37 16.25 76 22.50 37 38.05 76 23.50 37 17.00 76 25.42 37 44.35 76 23.00 37 16.50 76 28.50 37 48.00 76 28-00 37 20.00 76 31.88 37 53.85 76 28.00 37 25.75 76 31.00 37 55.50 76 18.15 37 29.00 76 25.00 37 53.40 76 14.45 37 28.00 76 20.00 37 50.00 76 10.00 37 25.00 76 18.00 37 22.25 76 19.50 SEC. 16. Rappahannock River Complex 37 21.00 76 17.40 37 20.00 76 17.40 37 26.50 76 10.00 37 19.30 76 16.62 37 25.00 76 18.08 37 17.45 76 16.16 37 28.00 76 20.00 37 29.00 76 25.00 SEC. 19. York River 37 32.00 76 35.00 37 49.15 76 48.00 37 14.00 76 22.50 37 53.73 76 49.65 37 13.25 76 24.00 37 58.00 76 45.45 37 12.50 76 27.50 37 48.00 76 28.00 37 07.30 76 28.20 37 44.35 76 23.00 37 14.00 76 36.50 37 38.05 76 23.50 37 16.72 76 43.65 37 37.40 76 21.40 37 26.29 76 49.77 37 38.75 76 10.00 37 30.55 76 40.00 37 28.56 76 35.00 SEC. 17. New Point Comfort Region 37 20.00 76 31.88 37 16.50 76 28.50 37 17.45 76 16.16 37 17.00 76 25.42 37 19.45 76 16.62 37 16.25 76 22.50 37 20.00 76 17.40 37 17.00 76 19.33 37 21.00 76 17.40 37 14.00 76 19.33 37 22.25 76 19.50 37 25.00 76 18.00 37 26.50 76 10.00 37 20.00 76 10.00 88 Latitude Longitude Latitude Longitude Deg Min Deg Min Deg Min Deg Min SEC. 20. Lower Western Shore Chincoteague Bay 41 36 49.11 75 58.05 37 52.50 75 30.00 36 45.75 76 07.00 38 00.00 75 30.00 36 55.85 76 16.00 38 07.50 75 22.50 36 57.79 76 16.00 38 15.00 75 17.50 36 58.00 76 17.70 38 15.00 75 15.00 37 01.05 76 18.52 38 22.50 75 15.00 37 03.68 76 19.80 38 30.00 75 10.00 37 00.60 76 24.00 38 30.00 75 02.50 37 07.30 76 28.20 38 22.50 75 02.50 37 12.50 76 27.50 38 15.00 75 07.50 37 13.25 76 24.00 38 07.50 75 10.00 37 14.00 76 22.50 38 00.00 75 15.00 37 14.00 76 19.33 37 52.50 75 20.00 37 17.00 76 19.33 37 51.00 75 22.30 37 17.45 76 16.16 37 51.00 75 30.00 37 20.00 76 10.00 37 00.00 75 58.95 SEC. 21. James River 41 36 45.75 76 07.00 36 40.00 76 10-00 36 40.00 76 30.00 36 40.00 76 40.00 36 55.63 76 40.00 37 17.30 77 18.00 37 20.15 77 14.00 37 27.45 77 08.10 37 26.29 76 49.77 37 16.72 76 43.65 37 14.00 76 36.50 37 07.30 76 28.20 37 00.60 76 24.00 37 03.68 76 19.80 37 01.05 76 18.52 36 58.00 76 17.70 36 57.79 76 16.00 36 55.85 76 16.00 89 A'DPENDIX C Topographic Quadrangles For The Chesapeake Bay And Chincoteague Bay Showing The 1990 Distribution And Abundance of SAV. (Boundaries Of Individual SAV Beds Are Delineated By Solid Lines. Each Is Identified With A Letter (A-Z) And A Number (1-4). These Numbers Represent The Density Classification Discussed In The Text And Fig. 6, i.e. 1 = <10%; 2 10-40%; 3 = 40-701%; 4 = 70-100%. Ground Truthing Represented By Symbols And Species Codes Which Are Explained In The Legend On Each Map.) 90 Ilk El@ ... UNITED STATE ABERDEE QUADRANGLE MENT OF THE INTERIOR M@L@RRYLAN GEOLOGICAL SURVEY MiNUTE (TD-R-11C) -'7'M@'3_ c 4P K @ MiloMp" IiA As A A. . A. A. A. U 3- V 7VIV @9 ZM Zoslem marina (selgrass) SPECIES HV Hydrifts wrticillate (hydrilia) SURVEY STATIONS DATE FLOWN 9-18-90 RM Ruppis maritime IvAdilson gnass) Hd Hal-thers dbia (-t. aWli-.) VIMS Field Survey ABERDEEN, MS Myriciphyflum spicalvm (E-slan watermilloll) PCr Potamogoton crispus (cudy pondweed) Hanford Community College PPf Polasnogeton perfollatus (redhscl-grass) Cd C .. lopftyllmd,-,,,(, mIII University MD-HPEL MD . ("and:* PPC Polamogeton pectinerfus Ingo pondweed) PPU Potactogeton pusillu rptntlynated, ZP Zen,kheiffe @Wffi, (h,rnW pondweed) Ngu NsJa,gusds1.p-ia,umsm neled) USF & WS Survey 002 N Nalas spp. (naiad, Ngr Nalas gracillima (naiad) 40 Council of Governments EC Elodea canadonsis (common elodee) C Ch.. ap. (...kgr.,.) MID Charter Boat Field Survey Va Vallisnerle americame (Mid celery) NM Naias minor(slender naiad) Tit Tp.-a(..t.-h..nW) $CALE 1.24,000 Citizens Field Observation Pe Potamogeto, epinydrus (leafy pondleld) s 0 MD-DNR U Unknoem species composition VIRGINIA INSTrftfTE 9 OF MARINE SCWMM 91 UNil L.U 6 1 A; L@ 1-DR-olh DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY 7 5 MINUTE S-1- 11-HAPH111 J- "SUBMERGED AQUATIC VEGETATION 0' ? Ms @ci T M. S'f' OB4 rt" F Nl3- S Ms\, \,@@Cd M Ek4- S C IFEIK MS M B 13 Ah' C@i 3. Va, MS VA% 'q- IVIL;O,N Cd 4 -DA2 - S -QA4- A H M s- v ' A S' Q) Hv NA RAI MS V@,N @cl' +7 M -TI No S Ms,Va, Hy, (@d Ppc &A2 Via N*,Hd s Ms,Va,Hv H k Ms,Va,Hv OA2 is . . ........ . KA2 *MS PA1, EAI MS A y /JA4 .......... Ms'Va . ...... IA3 s,Va 1111 '@M GA2 SURVEY STATIONS DATES FLOWN Zm Z-flar.-Ins(esiginda.) SPECIES HV Hydrate Mart/d/1.18(hydrills) 9-18- *90 Rm Rupple mriffine (widge-n grass) Hill HativiNfithere dUWR (wrifteir Slargrinse) A VIMS Field Survey 10-6-90 MS Allyriaphyflurn apfcalurn (Eurasian watermilfoil) Ficir Potarriagetan crispm (curly pordersed) Hanford Community College HAVRE DE Ppf Potranogedon perforiatus (redhead-grass) Pill C.Mphyll- derrisas"'I"I"I") University MD-HPEL GRACE,MD PpC P.M.Wt- W11-har (rui pondweed) ppq Ponanagam pustilus Pa..) Zp ZennUchellia poluStHS norned pondweed) NgLl Alleas guadialupensis (southern ni USF & WS Survey 003 N Najas Ipp. (nalad) Ngr Alai goar.1111- (nilled) Council of Governments Ec Elodea canadensis (mminion elodes) CCham sp. (muskgrass) MD Charter Boat Field Survey Via VaNsneda arnedcana (wild celery) Nm Ni infrior (slender naied) Tn Tp. at .. (-is, chsinut) SCALE 124.000 10 Citizens Field Observation Per Pohelogalo, 80hydnn; (leafy Pondweed) 5 a MD-DNR U unknown species coffMaraftion - L=! VIRMIA MSTMRE Cf MAFME SMEME 92 NOR I AST OUADRANGLE UNITED qFA rES DEPARTMENT O@ TIE INTERIOR 75 MI11T1 IIRI@,%=11111 OLOGICAL SURVEY ffo 0,,@ @Nv J ',,.":SUBMERGED AQUATIC VEGETATION 1990 71:@ 71 J_i 4, f f 4-1 N 5' p e, @ 77 S 4- OU d 00 Ms, FA2 T @y MS.Va S M EA1 M 2@- 1_@Ms W DA2 a BA2 Ms 2`- 39'30 39- SPECIES Hv IIrte- --su (hydmft) SURVEY STATIONS DATE FLOWN ZM Z-fiva -,In. (.Ig,-) 9-18-90 Firm Rupiolft ffodliw (Milgi- gms) Hd W-d- dubl. suirg-) VIMS Field Survey NORTH EAST, Me Alrdophyflum s#@um (Eunizim watung"all) Per Pi,@og #.p- (," p..d...d) K Hanford Community Collegei PPf PW-IWW- PW.IAW- (1.0iod-g-) Cd C-Ifphyfli- diwi-m (-MWI) University MD-HPEL MD Ppc wansw (-p p-&-w) Ppu Po-ww- PuNilus (M.M. pond-W) 004 ZP 2MM011*118PRIUSVIS (honod pondweed) Ngu AtIvas gwmwwws (wmm ww) USF & WS Survey N AW- W. (-Id) Ngr Abilm gmdubw (nw) Council of Governments E. EII -d-la I(--- elodw) C Ch-.p. (-.kg,-.) MD Charter Boat Field Survey V8 14.111-ivft -kans (wild MWY) Nm Tn Thwnsimst.-wChastnul) SCALE 124.01)) 16 Citizens Field Observation 1 0 Pe Potimagow 40hydius (I.My p-d-11) - I MD-DNR U Uni q.,d. -4.Mlon VIRGNLA OF: MAP= 93 M N 30 N Cz cn m 0 cn z 0 z z "a 0 'a m x 0 C-9 uj 9 o 03 t a 4 .0 06. '. 1. 1 --- - 77---e"- --I--T 7- 4% o 3 0 & 1> E% 9 --p5 rK Z ME I s T_ I C) 0 w 0 al M@70Z ..RA.,UNITED STATES SPI'SHTIF, 0 ADRANOI F MENT OF HE INTERIOR C; I W11- EOLOG CAL SURVEY 1141". OU mul 1 1 Eq SUBMERGED AOUATIC VEGETATION 1990 1PU 0 v I N, a jv 0 a A A. @rjo I A 0 Al d 4 Al + CA2 ;f a . -Z Z. Z Mis Va PIP, AW 0- -J-13A *MS, -HV 4 Va P Ms. 4 V E R SPECIES SURVEY STATIONS DATE FLOWN Znn Z-1- -,I.. (selgrarrit) Hv myernat t,artidnetal (ir"rina) 9-18-90 RM Rupple medtima (,Idgoon grass) Hd H.1-flar. dhI. (water tritutitnt.) A VIMS Field Survey SPESUTIE MS Myr0ophyll- Vi-fm (E ... Jd. wthroilloll) P- -Vol- ArI1pve(-ly pod-W) Hanford Community College Ppf lootarrogolort podollatus (redhead-grass) Cd C-,*plyllm University MD-HPEL M6 PpC PottehWeton pectithttus (sago pondweed) PPU Polamogeton putifflus (Slart por ZP Zannichafflopolustfix (homed pondweed) Ngu Napa gueattlupertsis (wwh.' miad) USF & WS Survey 009 N N4.9 spit. (m,lad) Ngr Ne/a. g.6111- (noted) Council of Governments EC Efodea canadentris (corromm elodea) C Ch.. ap. (m.akgrartrg) MD Charter Boat Field Survey Va Vallishona amedcane (wild celary) Nm New trunor(sismat Rated) Tn Tmpa natsm, (water chestmr!) SCALE 124.ODO Citizens Field Observation Pe ftramogto, qp1hydrus (leafy pemiweed) MD-DNR U Link- pecl- composition VIRGINIA INSTITUTE I K-MR OF MARINE SCIENCE 95 EARLEVILLF QUADRANGLE UNITED STAT S DEPART ENT OF THE INTERIOR ULPARTMENT OF THE ARMY I- MINUI, 1-111-TO110-11,111, OEMLOGICAL SURVEY CORPS OF ENGINEERS ... ........ U BOHEMIA fil VZH IA2 Ma SUBMERGED AQUAfic VEGETATION 1990 Ms, HA2 Ci DAII ,@Ms Va G BA2 S Go . ....... .. @.. lVe, F C NV, T jj f E > INIS`; f LY @@3 Ir, Hd, d SPECIES Hv Hydrilla varticlitaft, (hydfilla) SURVEY STATIONS DATE FLOWN ZM Zosteramarina(eelgraws) 9-18-90 RM Ruppis marifirna (widgeon grass) Hd Merwithave duble (Met. Sleighs.) A VIMS Field Survey EARLEVILLE, MS Allyriophyllurn spicaft- (Eurasian watermilloll) Pcr Potahogelon crlsp@ (cudy pondwwd) * Harford Community College Ppf Potamagetan parfollal@ (redhead-grass) Cd Ceratophyllum dernersum (coontall) 31 University MD-HPEL MD PPC loolahtogeton pectinalus (sago pondwe0d) PPU Potaniogetch pusilhis (slander pondwood) 010 zP Zennichollia palustris (homed pondweed) N9U Nains guadidupensis (sowhern noted) USF & WS Survey N N.J.S.pp. (nalad) Ngr Wasgradinma(miad)' ff Council of Governments EC Efodea canadonsts (comrnon elodea) C Chem sp. (inuskgress) MD Charter Boat Reid Survey Vill 11.111-fin a-d- (.lid celery) Nim Majas rit(nor(slonder noted) Tn Trope mr- (,aw chostnvt) SCALE 124.0DO Citizens Field Observation Pe P. goton epihydrus (lesfy pondweed) MD-DNR U nknoan Species composition t=j VIRGINIA INSMUTE 0 OF MARINE SCIENCE 96 PAIIIII I FINER I I HL INILRION PI1 -ANL bALriMURL ' I EOLOCICAL SURVEY MINUTE SERIES (1`01@00RAPHC) ..A VEGETATION 40 SUBMERGED AOUATIC 7 Is Z@ 4 '@A aa' cl P, "D D tZ c "14" -7- VA It. 14 1)! L I Z-i Z g- jo I Y. N.- a'- 8 0 'Ar rz S,V&, 'U c". -11- R.. N F0T + A s' A43 A .:7 -"@Notsf: Addit onal grouro.truth provided by Essex Community Al College SAV Research Group Twid Pt --------------------- zm SPECIES Hv hydrate wmucinst. (hydritulf SURVEY STATIONS DATE FLOWN 10-1-90 RM Ruppla maritircur (,idge-n grass) Hd H.Amenthern didbi. (warter stargras.) A VIMS Field Survey MIDDLE RIVER, MS Allydophyllunt spicafum (Eurasian watermiltoll) Pcr loolamogeton crispus (curly ponchesed) Harford Community Collwe Ppf paternalist- peffollatus (redhead-grass) Cd camtophyrium dentraual (coontaii) University MD-HPEL MD Ppc Polawrogetim wilmhus (sago pondweed) PPILI Polarnegetart pullout; (sionder pondaread) zp Zannichelfis palustris (horned ponderead) Ngu Nains, guadarhipensts (southern noted) USF & WS Survey 013 N Wass (-led) Nor Now gorrume (mdd) Council of Governments EC, Elodea ladernsts, (common elodert) C Ch...p. (nalakents.) MD Charter Boat Field Survey Va Vallisneria americana (wild celery) NITI N.J.. cubriar(slarrIt., -led) Tn Tlrapa ravens (water clunrlitut) SCALE 124,000 Citizens Field Observation P a Po"mogrolon epihydrus (leafy pondweed) MD-DNR u Unknown species composition VIRGINiA INSTITUTE OF MARINE SCIENCE 97 umri i) S I AT ES UNITED STATES GUNPOWDER NECK QUAURANGLL UEPARIMLINI 0@ J'HF INLLRIUR DEPARTMENT OF TIE ARMY MARYLAND GEOLOGICAL SURVEY CORPS OF ENGINEERS 7S MINUTE SERIES TOPOGRAPHIC) L r-D- -T- w -"'S.UBMERGED AOUATIC VEGETATION 1990 Ip OMM c- .--,ApA A A C, A4 0 0 c\, 41 \3 0 Va. SO a. Va A o B E R U a' E E.,Ms,V.0 E., 3 M' iAj JA3 .,,:.-Ms' jAj LA3 KA3 'MS U c 1p :z % AA2 p E Mile HA3 FA3 G nu @p: N D EAA22 0 V BA2 f IIt 17 .Q H S A P E A K E B A y SPECIES SURVEY STATIONS DATE FLOM zM zest" nod" ("wee"O Hv Hyddam wakakwam"rism) 10-6-911 Rm R-P& m-dame wwoeon III-) Hd Hidening- d.W (-W A VIMS Fold Survey GUNPOWDER MS AtidophyfiUm spicetum (Eur"Im ehibehriff.11) Pcr ponmwer- oheow (-iy P.-cheew Hadord Community Coilege NECK,MD Ppf ftmwgwm pelforlaw" (Ndheed-wass) Cd cempWA-dem-m(coonten) University MD-HPEL PPC PotimogWoh, PoCanedoi, (Sego pondwood) Ppu Po-row-pU-(-p0-) 014 Zp Zumichfift P.JUSMS (homed pondweed) Ngu AWeeguedaruieews(woufthn raw) USF & WS Survey N AII $pp. (nalad) Ngr mqpg.Mv-(-) Council of Governments Ec Ekdee cimadensis (common elochial C Ch- Sp. (MLkW-) MD Charter Boat Field Survey Va 1A.Hienedd-d-i[wildcalery) Nm Aiqmw-(dwxw--w) Tn SCALE 124.000 16 Citizens Field Observation pe polie-ger- "Aftyalue (liedy pombeeed) - - - - - MD-DNR VRMLA 1497trUTE U unk"em wed" co"powon OF MAM SCtENM 98 UNITED STATES HANESVILLE QUADRANGLE DEPARTMENT OF THE INTERIOR MA0VI,A.D 7,5 MINUTE SERIES IT-RAPHIC) 0 EOLOG ICAL SUWVEY SUBMERGED AOUATIC VEGETATION 1990@ 4 d D .7- t I 7 7- A 4 9 4 4 4 d 0 @AM 4 4 d Z? 411 4@ 4 d d d 'A -T@ I 4 A- N DATE FLOWN Zm Z.0" .H- (.0tinism) SPECIES Hv pwm SURVEY STATIONS 9-01-90 RM Rupo. mAddR%R (widq@ gron) Hd NIN.-OW. d,&b (WOW W.IgmiiVII) A VIMS Field Survey HANESVILLE, Me Alydophyflum spicoum (Eura"n wat-Witoff) Pcr pawwom otipma, (=v p, Harford Community Collow M D Ppf P-Mgt- Pf.IWU. (--d-WMl Cd cw*NshymvmdmwwmMR(coof"I) University MD-HPEL ppc P*Wnog@tM PIN711118his (SW pond-d) Ppu 015 Zp Z-khilfifa pf.9df(ho..d pondwo-m Ngu NowlimmwAmism(southmnow) LISF & WS Survey N NAIR..W. (nld) Ngr Awimm grAdmkm (raw) Council of Governments EC EAdw mnd-fs I- okxIm) C ChIRS &P. (muskgroiIIiIIiI) I /!, Vis WassrW0 i:oniii (Wild C&IM) Nm AWmnwnw(swwwnsis* MD Charter Boat Field Survey Tn Tnw ch@wl SCALE 124.DIXI Citizens Reid Observation Pe pou"WN-onydna (Idy pond."d) MD-DNR U Unk@ ZPWIINI -WINKIM VMGM 1114STITIM OFMMMSCOCE 99 UNITEII STATES BET@ERTO QXUEAMDTRANOLE DEPARTME T OF THE INTERIOR ARYLAND- W aEOLOGICAL SUR@EY 'a sallume m,n nce-tic, S A S S A F' R 4 4 4 lova R A tER d 41,/SUBMERGED AQUATIC VEGETATION 1990 CA2 -.4 + 0) 0 Aft J, ..... ... ... ... .... - - ----- ------ ------------ 70.1 ZM Zostwansudrin(esigrase) SPECIES Hv hydrifle WHidlista (hydrine) SURVEY STATIONS DATE FLOWN 9-18-90 RM Ruppia madtinia (vidgeon gries) Md histereartharia dubla faster x1fergrass) A VIMS Field Survey BETTERTON, Me Wdophyllum SPICaturn (Eurasian wtermiffoil) Pcr Polamogeton crispus (curly pondweed) Harford Community College Ppf Potsmagelon parfoliatus (redhered-grass) Cd Ceratophyllurn downturn (coontell) MD PpC Pofamopefon pectinalus (sago ponchased) PpLl Polamogeton pusillus, (slender pardweed) University MD-HPEL Zp Zannicheflia palustris (horned pandweed) N91.1 Nalas, gusdalupirnsis (southern nalad) USF & WS Survey 016 IN Nales spp. (naiad) Ngr Alpgconme(new) Council of Governments EC Elodeal carraidensis (common elodes) C Chars sp. (muskgress) MD Charter Boat Field Survey Va Vieffisran-ricans (,Aid cehay) NM N.Jes, nrin. (slender led) Tn rnw nwans (,star chntnw) SCALE 1:24,M0 Citizens Field Observation Pe Pulamolfron apiltyaltus (leafy pondweed) MD-DNR U Link- specW9 compshlo, VIRGINIA INSMUTE 0 @@n OF MARINE SCIENCE 100 \ ..,,,_UNITED STATES UNITED STATES GALENA QUADRANGLE 0 r MENT OF THE INTERIOR DE-ENT @ THE ARMY 7 5 MINUTE MAOILIOID A-111 'EOLOOICAL SURVEY -R. O@- INEER. 76W 39-22- -R I HCdI jUj vq\, Lt d MERGED AQUATIC VEGETATION 1990 ff d1L 0 R. % .......... C) oy + + .... ....... .......... . . n. C 5 39-11 - 7- 17- DATE FLOWN ZM Zaafern rawrina (selgraisr) SPECIES Hv HiNfrifla V&@Wt@ ("Na) SURVEY STATIONS 9-18-90 RM Ruppla "Mithrur (aridgeNut grass) Hd Hateravisfiftent dubla (whir garprarsis) VIMS FoWd Survey GALENA, Me Myriaphyflurn SpiarMunr (Eurasian arsternil"011) Pcr Patranogstm crispus, (c oly pandw"d) Harford Community Collew Ppf Putannapton parfollatus (redhead-gress) Cd camtophynium darwass, MD PpC Pt...Qw- pirctinsfus; (sag. p-d-d) PPU ft0Mwn0gwfWpuWSf1#m University MD-HPEL 017 Zp Z-WYA' P.W.-M, (I.-W P.--) Ngu AW-g-muparawalaarm-,usiast) USF & WS Survey N N.J...Pp. (.I.d) Ngr NAIR. gnsdruss, (.id) Council of Governments Ec JEWas ndral. (..-n Id.) C Chans sp. (narskipriani) Va V.111-A. -H,.- (Mid I.ry) Nnn Naiiowturr(rwanaa-Mai) MD Charter Boat Field Survey Tin T.U. W.- (Mids, hownut]i SCALE 1:24.000 Citizens Field Observation PO Pt--gW- p1hyd- (Issfy pourd-aid) .5 0 MD-DNR U Unknaran spKies coNtposition VIAGINiA WSTITUTE OF MAFNE SCIEKE 101 UNITED STATES UNITED STATES CURTIS SAYYQUAORANOLE LAM 'o DEPARTMENT OF THE INTERIOR DEPARTMENT OF @111 ARMY ?s MlNuYE MARn OEOLOOICAL SURVEY CORM OF ENOINEERS E 59 tox IS 0 SUBMERGED AQUATIC VEGETATION 1990 0 0 ---------- - C ----------------- ------------ - ------------- --------------- _urt - ------------ BAY@ .n -A 7- c A n A, Basal, tt %T ........... did oe r 7-`:0 -E ZIM Z-f.. madris (.1grass) SPECIES Hv Hydrills vimtkillets hydrill.) SURVEY STATIONS DATE FLOWN RM Rppi....durna(m ga.g,..) Hd H.Mrawithem duble (water starginiss) A VIMS Field Survey 8-1-90 d: IlEuraslan @tomrillfoll) Pcr Pta..gt.. dap. (ourty padaftd) Harford Community College MS hoydophyllum spicat CURTIS BAY, Ppf Poramagetan perfounhis redhoad-gress) Cd Ceratophyflum deahemm (coontall) University MD-HPEL MD PpC loolarmogeton pacrilriarva (sago pondweed) PPU Polamogelon pusifilm Islander Proww Zp Zannkhallia palustris (homed pondwoed) N@14 Nalas gundalupensis (southem mied) USF & WS Survey 018 "Ak N hisjus spp. (haled) N r Mons g-1111m (relied) Council of Governments EC Elodea canad-is, (common elodes) C Cham sp. (muskgrass) MD Charter Boat Field Survey Ve Vaffilmerf-d- (1111d celery) Nm Nalas n7inorelerider railed) Tin Ymp. astans teawr chestnw) SCALE 1:24.000 Citizens Field Observation pe ftt.-09-1@ ePihYdws (leafy pondweed) MD-I)NR U Unknoan species composifion VIRGINIA INSTMITE 0 OF MARINE SCIENCE 102 UNITED S ATES bi`Ak-.@ ZIN I QU AURANGLI, IIA DEPARTMENT OF THE INTERIOR 11 INUTE SERIES (TOFOORAPHIC) GEOLOOICAL SURVEY a,- 'SUBMERGED AQUATIC VEGETATION 1990 IF I ROAP RA- F.,t uj lw 9 0 0 CIO P, + 1. -Y B.yd 0 DATE FLOWN ZM zostoramadmijeograss) SPECIES I hydrille writicillata, (hydirilla) SURVEY STATIONS 8-1-90 RM Ruppia marfitima(wIdgeon grass) Hd Horteranthers SUMS (water Suagress) A VIMS Field Survey SPARROWS IVIS Myriophyflumn spicatum (Euraslan stermlifoll) Pcr Potamogeron crispus (curly poridereand) Harford Community ColleW Ppf Pot-mogieson perfouatus (redhead-grass) Cd Cerstophyllum dernairsum (coo"I POINT, MD PpC Potamogelon pectinshus (sago pondweed) PPU Polamogeton pusillus (sionder P....) University MD-HPEL Zp Zarmichellia palustris (horned pondweed) Asafas gusearupmus (southern naiad) USF & WS Survey 019 N Nalas spp. (naiad) Neias ginscillints (naiad) Council of Governments EC Elodea canadensis (common olodea) C Counts, sp. (nuIskgress) MD Charter Boat Field Survey Val Vallisneria smadc na (wild celery) Nnn Nitias minor(slender naiad) Tn Tnspo nahms (wat:r chestnut) SCALE 124,00 Citizens Field Observation Pe Potemogaim epihydNIS (1001y PrIndweed) 1 .1 0 1 IDE MD-DNR U Unknown specles composition VIRGINIA I OF MARIN"= I -TER ESCI 103 U,,",.,;" I IL IN I MLN J, U-01- UFTIE EMY GEOLOGICAL SURVEY COR 7 5 MINUTE SERIES (TO RAP1ICI PS ?@F'!n?INEERS f@G 7T,@ SUBMERGED AQUATIC VEGETATION 1990 r) @Lc r\- V A P % A K Yo C) zC1 EA2- us. (Al 0@ SPECIES SURVEY STATIONS DATE FLOWN 1@1 Zm zostera nuenre (telgress) Hv Hydrill. M&H1.111st. (hydrill.) 8-1-90 RM Ruppin nsurlitints (vAdge-n grass) Hd Hterwithir. diuble (wetteirbegnies) A VIMS Field Survey SWAN POINT, MS Ailynaphyllurn spicatunt (Eurnsian watermilfail) Pcr Poiamogeti:Rt cnispus (curly pondensed) Harford Community College Ppf Pohlurrogeton perfollatus (redhead-grass) Cd Cenittophyllurn dentersurn (coontall) University MD-HPEL MD Ail Pp ftitereg.1- pect-trus f"go p..d.-d) Ppu Porenagoton pustryus (shunder pondwred) 020 ZpC Zennichellia palustris (hornect pondweer!) Ngu Nailas guedidup.-I. (.Wh-- -led) USF & WS Survey N Allies spp. (naired) Ngr Ate-gractifurne(nelild) Council of Govemments Ec Elodea cenadensis (common eloclea) C Chant sp. (muskg,ass) MD Charter Baal Field Survey Va vanisneria antericarst (wild celery) Nim Napsinnorelendernel I Tin T@pa natens (water chestnut) SCALaEd124.G00 Citizens Field Observation r p 1 5 0 MD-DNR e P.J."'09'".. epihydr.. (I..fy InIndweed) - VIRGINIA INSTITIM U Unk- SWI.5 comPeriftiOn F=r F=r- .-TER OF MARINE SCIENCE 104 ROCK HALL QUADRANGLE ]TED STATES UNII ELI S1 A TF@; MENT OF THE INTERIOR KI.N;@l U DEPART DEPARTM T OF @E ARMY FA_.' EOLOGICAL SURVEY CORPS OF ENOMEERS 1V 7 4' SUBMERGED AQUATIC VEGETATION f9 4. Bed, 0- AA2@ LJ K@ 0 0 ML CA3, .0 0 It M 39-07- DATE FLOWN ZM Zest" marl" (selgradiall SPECIES Hv Hydinat nowaso, (hydria.) SURVEY STATIONS 8-1-90 RM Ruppla madiftne (viddevon small) Md d.N. (- starginsel VIMS Reld Survey ROCK HALL, Me AlWaphylium spicsturn (Eurasian watermlifoll) PCr Pot-MOW Wispla, (." Persisted) Harford Community College Plot PolfielMOM PffftliatW frodhood-Wass) Cd C-Oplati dismers-, focontall) X University MD-HPEL MD PPC Potamoplon, portmetus (sea* pondweed) Ppu ponshavet-p-al"weanaerpond-) 021 Zp zmictionia Whistris (homed POWWOW) Ngu histies gMadatival (houthem nowl USF & WS Survey )@Y; N MISS Ill'o. (.led) Ngr haties, giedushe (rolial Council of Governments Ec EAded, canadonsis (common, mcces) C CA-v (mMakorseal MD Charter Boat Field Survey V8 V.1sim.40 ... dc-8 (wild Wary) Nm Wasimmor(i0andernaled) Tn Tiaps nations (water chestnut) SCALE 124.000 Citizens Field Observation Pe Polamcgoll- Pilijidinus (hisly 0 MD-DNR dw-d) U Unknown species compositimp" - maum xsTirfm 0 OF MARNE SCIEWE 105 RD No BAY QUADRANGLE UNITED STATES UNITED ST TIES MARYLAND-ANNE ARUNDEL CO .._.,MENT OF THE INTERIOR MEIPARTIM NT OF THE ARMY MINUTE $E@1=.T-RAFH1C1 GEOLOGICAL SURVEY CORPS OF ENOINEERS MERGED AQUATIC VEGETATION 1990 Ott as is 0 D BAY ZD 0 SURVEY STATIONS DATE FLOWN ZM zostwa man" (ealgtass) SPECIES Hv Hydrifte Martlefflats (hydrill.) 8-1-90 Rrn RuApla merifirnetwidgWan SFOSS) Rd Hf-lhors dbW I-k. Istleglas.) VIMS Reid Survey ROUND BAY, MS blyriophyllum spicafm (Eureslan @atemhilfOil) Pcr Potamogel- CrISPW (Curly poodwftd) Harford Community College Ppf Phonogsion, prfaliat. (Nodli-d-g-) Cd Carotophyflurn dernersum (Coontall) University MD-HPEL MD Ppc P.1smagelon peclinalus (sago pondweed) PPU Polamogeton pusilhis (slender ponthesed, 023 Zp z""I'"Ili. palusfirf. (horned pond-d!) NgU Nales gwaletupensis(southern nalad) USF & WS Survey N AWss epp' (-led) Ngr N.J.. greollfinne (neid) Council of Governments ED Elodas -denl. (conunoo too.) C Chem sp. (rhuskgms) MD Charter I.. Reid Survey Va vairisneds ahedcam (,eitd ,etery) Nm Was rhinor(slender mid) Tn Tp. sten. te,wte, h..mut) SCALE 124,000 CitizOns Field Observation Pe Poosoplon, plhydu. (NMdy pnd-W) MD-DNR U U,,i,n- specte. VISIGNIA I)IISTITUM OF UAPME SCIENCE 106 @LAND A)AURANGIA UNITED SrATES UNITED STATES A I NI"I 0EPARTMENT OF THE INTERIOR DUARTMENT M YNE AM GEOLOGICAL ?URVEY CORM OF MINIVERS 76- 39-07- -7 -SUBMERGED AQUATIC VEGETATION N G) IF .(is n? G aso N A C 0 J7 J, (D Q@ 0 !a U P *ANDY P T No 'Al aI .L 169a In DATE FLOWN ZM zoahrre nawl- (WW-) SPECIES Hv "YdHft@lditaUtWyddft) SURVEY STATIONS B-1-90 RM Ruppla rasalfirre (widgeon grass) Hd Haterenthem dubis (water stargress) A VIMS Field Survey GIBSON ISLAND, Me Alyflophyff-picsfurn (E...10. wat.-Ilf.11) PCT POtahrogeton crispus (curty pondweed) Hartford Community Colisp Ppf 1`01amegeW perfollahra (redhead-grass) Cd cerstophygum deariera::7zid)....) University MD-HPEL MD PPC ftM..gt- ja-ffrat.. (.go pondweed) Ppu Ponverogetor; pusWus I ZP Zarrekhrifle pahst". (horned pondweec!) Ngu Awas g-daiwahh, (setharn ashail USF & WS Survey 024 N Nalass"p. (naiad) Ngr -is. 9,odin- (na-) Council of Governments Ec Elodes whadensis (connaron elodw) C Chem sp. (nauskgrm) Va Vallisnefia anerricana (wild celery) NM Majas nilhor (slender miad) MID Charter Boat Reid Survey Tn T.P. hat .. (wst-h.stnut) liCALE 124.000 10 Citizens Field Observation 0 -E PO froteanogeton epihydrus (learly pondweed) - - 1 0 MD-DNR U unknown species composition 9 - pq VIRGAU WSTITIM OF MARM SCIENCE 107 UNIrED SrATES UNITED ST TFS LANGFORD CRELK QUADRANGLE OF _,.,MENT OF THE INTERIOR OEPARTM"T OF - ARMY MARY- GEOLOGICAL SURVEY CORM OF ENOINEUS M_@ as., =RA.-) -7-: il,_r . 1 1. ---- k il.)- . 11 1- 76 RM n1w tif FI@j SUBMERGED AQUATIC VEGE*ATI0) N 1990 PA'f- j. 0 -7- Ot 042@ Ppf Y .Y V@ t nrl T- tt FIM Al Ms, pp NA2 rn Rm LA3 GA3 A2,,, RMEF-C 4@ JA4 M Ec.P irf RM DA3 P@j U U Rm P f --Rm p- M U 0 E A S T ........... U CX1 rin AA2 A k D (,Zp /4 DATES FLOWN SPECIES SURVEY STATIONS Zrn Zaw. -,in. (.Is-.) Hv Hydidita verticillatis (hydrilta) Flight Line 35 8-1-90 Rm ftppl. -11inis (,Fidg.. grass) Hd Hateranthdris duals ( SUIrg-) A VIMS Field Survey Flightl-ine36 9-1-90 MS Myntophyllurn spicaf,,,n (Eurasian %niterinliftill) Pcr Potannogeton crispinr; (turty pondweed) * Harford Community College LANGFORD Plot Potmaget- perfollsh,a (redhead-grass) Cd CrYstophyllurn dernarsurn (coordall) University MD-HPEL CREEK,MD PPC Frolaniogelon paifinshn; (eago pondWeed) PPU Potarnageton puslliu$ (slender pondenew) Zp Zamichellia palustd. horreo pondwmd) Ngu Alefes gwdelupenals (widliern naLad) USF & WS Survey 026 IN ftles app. (n.iad) Ngr Aiiijesgracillinus(raled) Council of Governments Ec Elodea canadensis (Corrinnon eloder) C Chare sp. (muskgrass) MD Charter Boat Field Survey Va vellisn"ne .-H." (.0d I.rY) Nnn n9n., slender led) Tin Traps refirris (water Chestnut SCAU@ 124.= Citizens Field Observation Pe ftranhogton epthydrus (learly pondw@) 0 MD-DNR U Unknom Species Composition 7171 VIRGINIA INSTITUTE s 0 OF MARINE SCIENCE 108 UNITED STATES DEPARTMENT OF TKE INTERIOR ASHINOTON EAST QUADRANGLE MA@y -INS-Cr OF MLUMBIA GEOLOGICAL SURVEY 75 U@ND ,.m sarnse PoPooft@p A.- A SUBMERGED AQUATIC VEGETATION 1990 4 J L F'r Hv DATE FLOWN ZM zostora marina (wig-) SPECIES Hv Hyddft vartidUala (trydrilla) SURVEY STATIONS 9-18-90 RM Ruppla miritim (widge-n grass) Hd ifalanuittlars duNa (water stiagrass) A VIMS Field Survey WASHINGTON MIS Myriaphyllum spicalum (Eurasian Vratenwifoll) Pcr Patamogaton crispus (wily pandwaird) Karford Community College lopf ftt-g-- P10.11.111 (rdh..d-91 .. I Cd c@siopftyaum dirnass,,,m fc-nwiq University MD-HPEL EAST, DC-MD PPC P.10.0plon pactinats (saig. pndw-d) Ppl.1 Polarnogetan pusillu,; (slender pandwood) 29 zp Zannkh.II1a palustris (homod pondweed) Ngu Majas guxadalpvnl@ (..tr-n .1.0) USF & WS Survey N Nala. app. (nalad) Ngr Naiss gracimma, (naied) lp Council of Governments FC Elodw canadansis, (common olodea) C Chan, sp. (muskgrws) MD Charter Boat Field Survey VS 1401-1. -d- (.fld Iy) NM ftla-Wr., (.I..d.r neid) Tin Trap. X..a (wifle, hesmut) SCALE 114.000 Cilizens Field Observation Pe Potamageton opihydrus (ioafy pondwaad) MD-DNR U Unknam all composition VIRGINIA NSTrPJTE OF KARINE SCENIX 109 UNITED S ATES DEPART UNITED STATES SOUTH RIVER OU AURANGLE NDEL DEOMENT OF THE INTERIOR DEPARTMENT OF THE MARYLAND-ANNE AR CO. LOOICAL SURVEY CORK OF E140INEMS ?s MINUTE SERIES/70i'DORAFRIC) U@ SUBMERG- AQUATIC VEGETATI%Illv I vow 77': M I IV V d "X T, 0 %-0 All G? 'A JP 4-, - "0 0 '0 SPECIES SURVEY STATIONS DATE FLOWN Zrn zoe'". --d- (owgress) Hv Hydrift Mullefflida (hydrift) 8-1-90 Rm RuApia MHUM (VAilgoon griss) Hd VIMS Field Survey SOUTH RIVER, I&S Alydophyflum spicelm (Euresdan mtemiltoll) PCr Potsmogetm afspus (curly pandsweld) Harford Community C0110" p pf pwaniopeton perfollefus (redheed-grass) Cd Constophylifurn dennen- (coontall) MID PpC Polarnagetan pectinaws (wild pondweed) pplu PolsoWston pusilius (Meader pondesped) University MD-HPEL 030 Zp Z-.khwli. pelushis (homed pondweed) NgLl hisjud; gundalupewsis (southem nalod) USF & WS Survey N AbOSSM' (.led) Ngr Nislas gnicillim (.led) Council of Governments Ec Elodes ca-d-sle (..-n Wool.) C Chans op. (musitgniss) MD Charter Boat Field Survey V8 V8111-4 -fiCIMUR NAM Celery) NM Nalss rdoor(shinder nilod) Tn Trkw notem (watw chestnut) SCALE 124.000 10 Citizens Field Observation Pe PO 00hyd-r (leafy pondweed) 1 0 IMLE MD-DNR u .-Wi.....poeftion VIRGINIA INSMUTE 0 OF MARINE SCENCE 110 DEPAPTU NITED STATES UNTED STATES ANNAPOLIS OUADRANOLIK OEMENT OF THE INTE IOR MlMuTa MARYL@Kl) .OLOGICAL SUR@Ey SUBMERGED AOUATIC VEGETATION 1990 z_ F in E a- U. ZP M.-. 49 ek be '9'0 + Co re T" kr'. sm -a SPECIES SURVEY STATIONS DATE FLOWN ZM Zosteramarina(ealgress) Hv Hydria, wrocinah, hydruia) 8-1-90 RM Ruppia maritima (widge.. gross) Hd W-then, dubi4 (water stargaess) A VIMS Field Survey ANNAPOLIS, Me Myrtophyllum spfostum E-sian watumuffoil) Pcr Pons,rogaron chriam (curly lxmaw@) Harford Community College Ppf P.Jm.g.fm prfolurfus (redhead-gross) Cd constophyflum derharsum (coorded) University MD-HPEL MD Pp Polumogotch poctmajus (sago pondweed) Ppu potamogeton puslaus I pndwd) 031 ZPC Zannichollia palusids (homad pondwood) NgU Alains, guadolopensfs (southern rudad) USF & WS Survey N Naas spp. (naiad) Ngr taiasgroommoo(naiecil Council of Governments EC Efd.. camd.-Is (common olodea) C Chem sp. muskgreas) Va Vallisneria amoric na (wild colery) NM Naiss minar(slardat miad) MD Charter Boal Field Survey Tn Traps nafans (wat:r chestmo) SCALE 124,000 Citizens Reid Observation Ise Pol-golon epihydrus (loafy pondweed) ',"'a MD-DNR U knows "clog composition VIRGINIA INSTITUTE F:1 9 0 OF MARNE SC"M UEPANYMEN i& i IL 1.N;LidUR .1 :1,!, 'T KENT ISL.AND QUADRANGLE GE0=11CAL SURVEY I @i I @0- c@ --E.. 75 MINM AR-NE Main mW00RAP1*%j5' __T SUBMERGED AQUATIC VEGETATION 1990 I V E R Y 1.% 4i Rm Rrnn tr T Zpj .1 S L _0 44 @7- HA1 M Rrr Rm A T T GAII Rm JA2 C NA2 V 7-p 1 Rm -a PA2___. Zp Rm C A A B l L L E Y Zp FA2 N CA1 t 55, Rm.7,p da Rrn Ppc NRm Rm RmN QAI EA4 (D T. B4qf- RM DAI Rim. Ppic. Zp %___ Rm E A 9 T E R A' R A y Rm AA2 C'. A X 16'1Y DATE FLOWN Zrin zost"narrina(emoms) SPECIES Hv hlydrina waridum (hydriva) SURVEY STATIONS 7-3-90 Rim Ruppia nurriffirns (widgeon grass) Hd Hermanthon, dubis (aaaw stargrass) VIMS Field Survey KENT ISLAND, Me Myrfophyllum spicatum (Eurasian watermilfoll) Pcr Panuriogeton crispus (curly pondweed) Harlord Community College lopf P.1-WI.. p.H.11al. (rdh..d-gr-) Cd Cetatophylturn darrawsurri, (coontall) MD lop ftfarnogeton pectinsfus (sagd pondwsed) Ppu Potarnageton wainus (slender ponowned) Universitir MD-HPEL 032 ZPC ZonniChONapalUSUIS(hOrned parld.Nd) Ngu Alejas guadatupensts (southem naiad) USF & WS Survey N Nips $pp. (naiad) Ngr Napa gcurinur (naiad) Council of Governments Ec Efacbs canadensis (conanan eladea) C Ch...p. (nnnkgnats) MD Charter Boat Field Survey Va V.111snans anarricaut, (wild celery) Nm Majas nalmor(slender naiad) Tn rnias nariurs (Wat., tw-t-) SCALE 124.000 10 Citizens Field Observation Pe P-1--g-tan spillydrus (learly pondwd) - - - - - - MD-DNR VIRGINIA INSWIM U Unit.- pwes composition OF MARINE SCIENCE 112 (4UFEN@TOWN ILIADRAN,'! I UNITED STATE --' LA 'U RTMENT OF THE INTERIOR MINUTE SERILS TO-9-111 GEOLOGICAL SURVEY SUBMERGED AQUATIC VEGETATION 1990 E R A. -M -.1 o 'HAi M 7m, -ik --41 R FA2 P R 0 S P E C T B A Y R EA2 C Rm Rm d CA1 Rm BA2 URM WYE E A S T E R N IATU L XS A... T A E L Rm Y E Z 76- SURVEY STATIONS DATE FLOVIM Zm SPECIES Hv mrwom wakimmis ("08) 7-3-90 RM Ruppis mdtim (vftg@ gmu) Hd A VIMS Field Survey MS lerftphyth- (E.r.W.. -t-dtfffi Pcr PI,@.gm- :,ftpu,, (-rty p-t..d) HarfOrd COMMUnity, C011alle QUEENSTOWN, Ppf PoWnWW- PWOIMf- (.dhw@glm) Cd -fqpnyt---mm(--w) University MD-HPEL MD PpC potwwgotm P@J'Iwm ("Do pon&*V") Ppu Pow-go-p-lowwwww - 033 Zp Z-kW1. pfumfrl@(h-d p-dw-M Ngu NAl. g-dwwwwb (-nhm mw) USF & WS Survey N Akqs -pp. (-w Ngr AW.. 9-dilk- (nWW) Council of Govemmnts EC Eiodm cand-18 (- olodm) C ChM.P. (-kgr..l OVID Charter Boat Field Survey VO Valfisnvto wmvk@ (VAId OMM) Nm "o. Tin Two nows (water ctmmut) SCALE 12000 Citizens Field Observalion PO P.V-90f- AWhy&- (AWY P-d@) 0 0 MD-DNR U Unknown spwAss conq*01m VIROM NSTITM .5 OF MARM SCOM 113 D.'AR'UNITED S ATES MENT OF THE INTERIOR ALEXANDRIA QUADRANOLE cEOLOGICAL SURVEY VIMINIA-DISTIRI OF '5 MiNurs SWISS Mtocia-C) 0 N G V4 'Al 0 Hlv, @M OA9- Hv@. W A3 Mi K. M'V Hv FA2\@ Hv. DA11 I -B@ 3 01 ,Hv M@ AA3 0 Hv@ VISNnn Hv '"?7' L Me,, ZM 2-fer. Inerin. (taignas.) SPECIES SURVEY STATIONS DATE FLOWN Hv HydfiHa -14,1118h; (hydrithr, 9-18-90 Rm RUPP18 rnariffma (,,loosen gives) Nd Heter-Mni dbi. (water starritnints) A VIMS Field Survey MS Alydephyff.. pi.t.. (E ... siti. wattimillf.11) Pcr Potarnogelon crispus (curty pondiesed!) Harford Community College ALEXANDRIA, Ppt Potannogeton perfoliatits (redhead-grns) Cd Carstophyflum dennerstim (coontall) University MD-HPEL VA-DC-MD Pip Potenrogaton pectf@tus (sago pondweed) PPU Potantogeton pusillus (3tender pandenrod) ZPC ZenrikheffinpalUstris (horned pondweed) Ngu N.1s. g-diup .. is (soodhem naiad) USF& WS Survey 034 IN AW-pp.0aied) Ngr Majas gracillim (naiad) Council of Governments EC Elector canadersis (connhon elodes) C Chans sp. (hruskgreas) MD Charter Boat Field Survey VII Vagliotarria arnwriCaM (wild Wary) Nm Mi.. ininar (Ornide, led) Tin Thipa natans, (water cftstnw) SCALE 124,DDO Citizens Field Observation Par Potannogetert ep1hydrus (testy pondweed) -E MD-DNR U Unknown species composition VIRGINIA INSTrrM OF MARNE SCIEWE 114 I)NIT 1 1) 1 DEALE OUADRANCLE DEPART ENT OF THE INTERIOR DEPARTMENT OF HE ARMY ..R LAND MnICAL SURVEY 0DIV'S OF E GEO "ATUTA BERIES (rOPOORAPH", BMERGED AQUATIC VEGETATION 1990 elf -0V P. % W., iU . . ... ....... . Me", 4 % V4k6W T lb Tr 14 -0 Zrn zosueft Red- (.Mgr-) SPECIES SURVEY STATIONS - DATE FLOWN HV HydIft WkIMIft (toyerift) 8-1-90 Rm Rupple Riedthre (widoimiri orass) Rd HIN-11mr. duN. (-W 0.9nunk) VIMS Field Survey MS AlyrlOoyllum spicsfum (Eurasian oraterrdifoll) PCt Pularriogirtan crWpus (curly pondwaid) Harford Community College DEALE, ppf poi-Ogaw pwanwRi, IredhiMil-grin,s) Cd CmtWhyilum dft- (ccentiffi MD pPC ftW_aW_ PiActi."Aur (wig. p-cfwaid) PpU Pubur"Wort pusilim (W.Mler =w"d) University MD-HPEL Zp ZMTkhfl1.Pi0uW Nqu Nips gumwupwws (wu#MR,, rewc) USF & WS Survey 035 N A14W.W. (-Id) N gr AW- g,.,T11k- (nw) if Council of Governments Ec Ewu canscurnsu, (corrmn modimi) I Ch- SP. (-.kgl-.) MD Charter Boat Field Survey Va V8918 ervulcem (wild WIMY) Nnn AW..,Rf-(wrKwrMI Tin ThWe ruders, (-tw chMnut) SCALE 124.000 Citizens Reid Observation Pe Rwenicaw- 60hydrum, (IMITIV pMdw..d) - - - - - - MD-DNR U UnknMMY p " -ffp..ni- VMGM RGTFTUTE Or MARM 115 UNITED STATES CLAIBORNEQUADRANGLE MENT OF THE INTERIOR _ YLAN -.1-0-EOLOGICAL SURVEY A2 SUBMERGED AQUATIC VEGETATION 1990 LA2 K E N T a "N' KA2 JAI ERM HA2 lip IA3 V. Rm E-- GA2 CA3 EA2 R Own BA1 R MrI Iie Ril AA3 47- - + RMN P.pI., H-b- Film. & R AN M SPECIES Hv P"Howakuwap"nue) SURVEY STATIONS DATE FLOWN ZM Zxu. .d- (.Ig-) 7-3-90 RM Rupple inedUrne (widgwen gms) Hd Ht-0- dubft (-W ebeg-) A VIMS Field Survey CLAIBORNE, MS Atfliophyflum spicefun, (E."an watermirfoll) Pcr pot-goon hiiha (.uq pendeftd) Har1ord Community Collep Ppt Pot&wgwm perfallatus r:head-oms) Cd Cerstophylium de- (CWMII) University MD-HPEL MD PPC Pol-90f0in P.0-t- (-go po.dw"d) PPILI fthl-gwon PU2111. Niendw POndweed) 036 Zp Zonnkhelft palusids (horned pondweed) Ngu AWes guedetupensis (southern owed) USF & WS Survey N AW-.pp. (.I.M Ngr -pg-veoe(noied) Council of Governments Ec Bodies coadonsis olod") C Chm sp. (muskgrm) V. vfilnd. -d- (Mid colory) Nm @j-wn-jiaerw need) MD Charter Boat Field Survey Tn rnw nmwm (@ chinnnut) SrAUE 1:24.000 Citizens Field Observation Pe Pohonoppw emhrd@ oesly pmdwe*d) 0 MD-DNR U Unk@ eo@ COnno0stdon VIRGOU DISTrTM OF MAIM SCIEWE 116 ST MiniAVA.S L)NITED STATES DEPARTMENT OF THE iN rEmoR 7 5 IINUTE Sl@@IES I'TO@--' GEOLOG[CAL SURVEY I s, A ITD 1\1\ A s r R SUBMERGED AQUATIC VEG E rATION 1990 .......... .. /I A I SHAW BAY FA2 + 17 q DA2 EAI + CA2 u@ V .,rn- A 47' BA2 + 4.' 4, > MV ------ ---- AA2 -7 416 -a ft" a 41-11 ZM Zm(wa nuldna (arelgrass) SPECIES Hv HydIffis usnildit" (hydrill.) SURVEY STATIONS DATE FLOWN Rm Ruppla rnadthni, (Wldgen 9MBS) Hd Hirt-Harra duchin (seen, aling-) A V11VISField Survey 7-3-90 Ms mynophyflum spicatum (Eurasian Watennilfoll) Pcr panunalistan enspus (ouq pandwed) Harford Community College ST. MICHAELS Ppt ftle-goot- P.,nliatue (rclh."Nae) Cd C-Ophrilun, d-- t.-n1afl) University MD-HPEL M b PpC Poneagefon pectinaBri, (Sago pondweed) Ppu Potenogston pusillw (Slender prinewSed!) USF & WS Survey 037 Zp Z8nnkh@lfisp8lUSfr13(h0rn9d p0ndweed) Ngu Abjes giarder",anew, (--in- -led) N tbjas spp. (naiad) Ngr Ataye. ji-furn. (rudad) Council of Governments Ec Brad- -d.,uu. (-,nnuon .1-l-) C Ch-.p. (.u.kg-.) MD Charter Boat Reid Survey Va V.111,ned. suned- (wild l.ry) NM kolas minor (slender naiad) Tn Trajosmauvw(waterchest ul) SCALE 124.000 Citizens Field Observation 5 MD-DNR pe Porwwotm p1hydrus (I:y pandwood) - VIRGINLA RISTITIM U Unk- simles compos"ion nunue.. OF MARINE SOME 117 @L' I I A rES LA`iT IN 141 A!'I-'.' DEPARTMENT OF THE INTERIOR IDEOLOGICAL SURVEY 7 5 MINUTE ERIES IT-PAPHICI 4@1 r 0/@ V IL Kol SUBMERGED AQUATIC VEGETATION 1990- is 41 0 C: 0 RM Rm sill. aa d? EDMUNDSON NIEC. SPECIES SURVEY STATIONS DATE FLOWN Zm ze"he"a""'(selgrass) Hv Hyddna Midadifaw (hydrius) 9-1-90 Rm Ruppla madfirrur (widpon grass) Hd Neforimthere dUW (WOW stargrild,S) A VIIAS Field Survey EASTON, Me Affdaphyflum splicifturn (Eurasian vilitermilloil) Pcr Poremagaim crispvs (cudy pondaved) Hanford Community College Ppf Potemogation perfelistus (radhead-grass) Cd cenlitophytium dameness (cadmidi) MD Ppc Potomfogetm pectimthis (sago pondweed) PPLI Potawropton pusillus (shander poindanied) University MD-HPEL ZP Z.-khallf. pid.9"t. (homed pondweed) NgU Naiss guadshipensis (southern naiad) USF & WS Survey 038 N NAIMS Spp. ("led) Ngr Naias gradifims (mind) Council of Governments Ec Elodes cariadonals; (W-1 elodes) C Chera sp. (makgridli) Va irsalive'i-mano.- (wild oelery) Nnn iftjas ftnor(slimder naiad) MD Charter Boat Field Survey Tin Traps @s (water chem,W) SCALE 124,000 Citizens Field Observation Pe Pecilmogeten epihydms (leafy pondweed) 0 MD-DNR U Unknourn spWirs composdim VIRGINIA DOTITUTE 0 OF MARINE SCIEWE I UNlTED,1TAT1S FORT BELVOIR QUADRANGLE ,.E DEPARTMENT C. 1 5 MINUTE SER 8 (To --!@T"YIIETRIC) GEOLOGICAL SURVEY .=A @J SUBME Y .,I) @-j C W P Cd !4v' 0) e ,4 Va a Hv Va Ms C B Ar y E G 4J@., 4 _Va C)'. first, v Ms- N I, 1,38-31-30- SPECIES Hv Hydrilm wrificlitaft(hydrilla) SURVEY STATIONS DATE FLOWN Zlm Zosteromarims(w1gress) 8-31-90 FITT Ruppla, mr1hims (widgeon Smile) Hd Hefffainthom dubm (water stargrass) VIMS Field Survey MS Alyriophyllurn spicstfum (Eurasian watenrillfail) Pcr Potarriogeran Cri9pus (curly pandweed) A Harford Community College FORT BELVOIR, Ppt locharrogetom perfollarfus (rodhead-grass) Cd Cemlophyllum, donfersum (coontall) 'asof C3 University MD-HPEL VA-MD PPC P.Wmogfon pe.flmtus (-go p.ndwaad) PPIJ Pommogeton pusiffus (slender pond USF & WS Survey 039 ZP Zam,lcheffla palustris, (homed! pondwee,J) Ngu IVIIjas guadolupensis (southern naiad) N Navas epp. (naiad) Ngr Nalits graclifirm, (naiad) Council of Governments ED Elodea ca,achmsis (common lodes) C Chem sp. muskgrass) MD Charter Boat Field Survey VE, Vallisneria americans, (wild celery) NM Najas minor (slender naiad) Tn Traps naterns, (water chestnut) SCALE 124,000 Citizens Field Obseinabon Pe Polamogeton epilrydrus (leafy pondweed) (D MD-DNH U Unknown species composition VIRGINIA INST17UTE 0 1 KIUDMETER OF VARIME SCIENCE, 119 GE UNITED SI@IIFI MOUNT VE NON QUADRANGLE _@ART TG' T.F EOLO -.AT ....... C; 00, MEN % WA3. SUBMERGED AQUATIC VEGETATION s,Hv- 0 .t. 'Ile It Hy. W,1 W.d T 0 7 W Cd. V C@AAI :ir S HV, N@k V Va EIA4" A 0 < le Aq h4q.Nigu, BA4 It V, 7" V.. Hv, MS* Va Hd/ V 11 W 21o' 'n ZM SPECIES Hv Hydrith, wracinte (hydinia) SURVEY STATIONS DATE FLOWN IRM Rupots theiritim (widgeon grass) Hd Heterenthivirch"tatterstargiass) A VIMS Field Survey B-31-90 MS Wdophytium Spicatum (EUm3lan w8termidoll) locr Potamogeton crisptis (curry pondweed) it Harford Community Collep MT. VERNON, lopf PotiamiWon perfolhitus (redhead-graSS) Cd Cimalophyflurn demers- (.oontall) Univensity, MID-HPIEL PPC Potamogeton PeCtinithis (sago poridWeed) PPU Potsmogeton pusillus (sienclin ponche"d) VA-MD zP Zarmictreffla patuafria (horned pondweed) Ngu AW-- gad-tuip-h, (-.the- i-d) USF & WS Survey 040 N Nolic, Spp. (nalad) Ngr atirps gnscon.. (..jd) council of Governments Ec Eloda@ canadentris (commom elodw) C chw. 'P' (-.kg,.s) MD Charter Boat Field Survey Va Vagisnafla amedcaft (wild osley) N. I.,ndhor(siondernelts!) Tin nape natims, (water chestnut) SCALE I @4.000 Citizens; Field Observation Pe P.J."rogsion qp1hydbus nwrly pa.dweed) - - - - - - MD-DNR U unknown species composition VIRGINIA IIISTITIHE 0 OF MARNE SCIENCE I 120 LOWER MARLBORO OUADRANOLE U1ITE1 STATES MARYLA11 RTMENT OF lHE INILR 7a MINUTE S.R E. M-PAPHIC) OEOLOGICAL SURVEY ''ON 11 16-3- 911RIVIERGED AQUATIC VEGETATION 1990' 4111- 4 2 @'j A C'- Grouriqlnuth pr6 Capilail Parks afqj;q River Par@ ZM Zostw* madna SPECIES Hv Hydrijap WHICH1810 (hydrilla) SURVEY STATIONS DATE FLOWN 8-1-90 RM Ruppla moritima (widgeom grass) Hd Heteranthemi dUbla (Water StargraSS) A VINIS Field Survey MIS MyHophyllm spi-lum (E-slan Zrmlf,il) Pcr Pwamogoton crisp@ (-ty pona,eec) Harford Community College LOWER 'adr MARLBORO, MD Plot Potarnogelon perfolialUs (ead grass) Cd Ceratophyllurn dismanUm (coontall) Ppic Potarrogelon pactinatus (sago pondWeed) PIDU Polamogeton pusillus, (slwdSr pond-d! University MD-HPEL Zp Zarmichaffis plUstfis (h.mad p.nd.-d) NgU NaJasguadalupansis(southam naiad) USF & WS Survey 41 N N.Jasapp. (nai.d) Ngr M./asg.11111man.rad) lp Council of Governments Ec Darted canadensis (common elodep) C Cham sp. (muskgrass) MD Charter Boat Field Survey Va Vallisnorra annefica,na (wild celery) NIT1 Naj.. in., (Ishind., naiad) Tn Train, nWI.n. (Walin, h.slnn SCALE 114.000 IS Citizens Field Observation Pe Pownrogaion epthydruspeafy p-d-ed) NIUE MD-DNR Ll Unknown species composition VIRGINIA INSTITUrE 9 c I -METER OF MARINE SCIENCE 121 DEPAR UNI I ]" S I A T E,@ II-LitIMA'IN 11U DiiAN,;..i OTMENT OF THE INTERIOR OEOARTM NT OF THE ARMY EOLOGICAL SURVEY -8 OF ENGINEERS 11LI -1- G- M -T M GA3 SUBMERGED AQUATIC VEGETATION 119999 Me in' _@r.. Rm 8 -------------- Me . .............. . Rm "41 Ma Me CA3 DA3 Ma T .. ........... I L, G H M 1_ I S L A D A3 We R AA3 Rm -R V R- ANN 0 38-37 _.3r- -0622.111 DATE FLOWN ZM Zostera mrina (ealgress) SPECIES HV Hydrig. MMUCHINA (hydrille) SURVEY STATIONS 7-3-90 Rim Rupple mriffm (widgeon gress) Hd Histivinthiew dUND ( SWWIMRI@ A VIMS Field Survey TILGHMAN, Me Alydophyflurn spicsf@ (Eurashan Madenniffoil) Pcr potmogefoo crispve (cuny pondwased) Harford Community College MD lopf POLOW96fiv, perfolialuS (redhead-g-) Cd cerstophynurn dehainsura (coont.11) University MD-HPEL Poo Potarnogeton PeCtirwitio; (sago pondweed) PPLI Poonrogsion PUS111tr; (Slender PMdw"d) 043 Zp Zennicheffla palustris (homed pondweed) Ngu ibias guadidupensis (southern naiad) USF & WS Survey N AWas spp. (nald) Ngr ".. ghdus.. (nauid) Council of Governments Ec Elodes canadersts(cornanon elodes) C Chfiffl So. (toinikgrOSS) MD Charter Boat Field Survey Via "flireria -d- (.Ad calary) Nrn Tin T,.A. at.- (water twriftnut) SCALE 124.000 le Citizens Reid Observation Pe poterossim apayorus peer pondweed) I I - - . 0 MD-DNR - - - VIRGINIA I%MTUtE U Unknoen species composition 0 OF MARINE SCIENCE 122 DEPARTM IT OF THE ARMY III TOPOGRI-W, GEOLOGICAi. SURVEY CORPS OF ENGINEER- Rm MERGED AQUATIC VEGETATION 1990 iU '97 'GA3 tit it"w 0., OAAR N@A % me FA3 EA3 % E E a DA2 @p Aarn A J BeIr,." % A CA3 ft.t ale E @R R Y I" E V 0 R D I E c !LL % H_' as a Ppe 4lY - + 41Y A 9 A I c K N A, cl, -37- 1211 1. 38 3@ zosterseladne(eeignals) 7-3-90 Z111111 SPECIES Hv Hydrift @iViliM (hydrills) SURVEY STATIONS DATE FLOV, RM Rupple therillins (aldge rigness) Hd Hilhatinflawal dultdis (water stargril A VIMS Field Survey Me AllyHopityllum spicalum.(Euraislan watenniffoll) Pcr Ponannogaton crispus (curly pondeved) * Harford Community College OXFORD, PPf Polsologeton perfollatus (fedhead-greas) Cd conintphytion, diuremus, ." University III MD PPC Potairlogeton, pectinalus (selto pondwand) Ppu Poolunogation pusinut, (ale': Pon)" ..4 In ZP Zannictellia palust'le (horned pondwated) Ngu halite guilialialupensis (southern nalad) USF& WS Survey 044 N AWasepp. (Fall Ngr Nalles gralwarras (raill Council of Governments Ec Elod" canaderals (condhicit elodas) C Chanal sp. (in.utilligratint) MD Charter Boat Reid Survey Val Vallisnarla arriaticart, (wild calory) him 161-Wital (shind., nabil Tn help. nalans (water chostnut) SCALE 124.000 Citizens Field Observation Pe pottionWelon epthydrus, (leafy pondweed) a He. MD-DNR U unknown species Clunpinittlon VIRGINtA INSTWE OF MAFNE SCIIENM -TE. 123 U@IIED & 01,ANT,,O )UAD-,,C,E r-TES DEPARTMENT OF THE INn IOR GEOLOGICAL SURVEY 7 ix'al' SUBMERGED AQUATIC VEGETATION 1990 _7 Z_ Ir AX UAV 4 j 07 1, f _IA4 7j ;It ,X VWI, Z-14 ry Ms V d A -gi rk -S, J, Zf Hv &4, 8!@ R V V. H V-5 @77 IPH AV HVIN 4 Hii M. - .2 H E@Hd v.CdHd.Vh-L_1_ Hv, MS. cIti FA4 H L4s.V&Cd.HO _J1 , Va.Cd.Hd "y -L_ U@ Iva Ms 4A-4, 1P.."! ev @q 4V mv. Va all HV; al. AHCL H I Hv. Ms' Hv. Hd.ms I HV 4 BAIV M@V a! W@ I Ms.Hv._Va.Hd i Cd.Ngu (f z! Ms.Hdg NO SAV Z V. 77, 11 .r7l,4` H It girp V.Ms.Va.CcLHd.Ngu H V-MrHd- SPECIES Hv Hydnila md-flara 1hydrWal SURVEY STATIONS DATE FLOWN ZM Z.- (wg-) B-31-90 RM R,ppia ril (mcigeon gmssi Hd Hel-Wrii duble I@IW slargmssl A Vill Feld Survey MS h1V-pftyI1- lip.l.ir, Eu-- Irlwrrflf@i) Pcr Poi-,ogston cr-spus-my pond,wl * Harfora Community College QUANTICO, Ppf P-09elo- Mdoil.lus I-Mad-glass) Cd Comlopnyil- d-umicoonla,11 University MD-HPEL VA-MD PpC P.I.-g.1 PpU ftf-ogii- pirniflil zp 1h.-d pn.-Ill Ngu Jill g,aalupensiq (wulWrn -11) USF & WS Survey 047 N Nerialispl, nri,adj Ngr Aw-g-n-i-mi Counol of Governments Ec Elodea-Wens,91com-IMUl C Charl (MuSkgIMSj IVID Charter Boat Field Survey Va -I.,) Nnn -,il Tn Two %itans iwater c"sinull SCALE 124 OOJ otaens F,elo OlDservation Pe P-ogeton V,nyd,,s il@v mn@j fill U Unk- spIl composmon VIRGINIA INSTITUTE OF MARINE SCIENCE 124 UNITED STATES INDIAN HEAD QUADRANGLE ,,,UNITED STATE M, MARYLAND- VIROINIA MUM PARTMENT OF THE INTERIOR RTMENT OP THE ARMY T.5 x Input GEOLOCH.@L UR1.1'E1 CARPS OF "..MEERS 12j ...... SUBMERGED AQUATIC VEGETATION im -1 OW4@ A 0 C C 0 @17 A A Y al-I sell Z' 16 HV.Va. V.I. Mill, Hwi MSHd M zip Hd,Ms4f Va A OW'D R CTORY A, 14' MS d. 9H A Cd liv Ms Hv.Ms,Cd* 9 Hd.Va a M5 Nm H FA4 MS MATTAVWA" a, WtV 6@_ Ms A3 Nm HvHd,Msf Ms,Ngu Hv V, Ms,Nm W U S NAVAL d,Va, RV. M 3 Al 3210" + v, Mls, NIT. dO JW@H4. . . . . . . iIVIS gu, Va OH-106 IVIS w1a, Ms. CdNm qPV V V. H M Va. N BA4 HM,,-.. -- ---------- Va V a . ......... Va % DON ill R ......... % 11A1 I F- 1O.Es. ---------- 'a_ 1110 Zm zatnt-nalrons(eillipres.) SPECIES HV Hydd)M .11killt. (hyd,111.) SURVEY STATIONS DATE FLOWN 8-31-90 Rm Rppi. -difinut (widgecu, glass) Hd HetwerrIfews duble (under stiverass) A VIMS Field Survey INDIAN HEAD, Me A"Olphyllunt Spicsturn (Eurasian watterwittoil) PCr ftlamogelm cdspus (curly pondwased) Harford Community College PPf P.1faftaftre (rrrclhruld@gnari) Cd carstphyaunt, dwaswe.. (,:.Ust) University MD-HPEL MD-VA PPC Potanagetan pectiftfus, (sago pondweed) PPU Pohnnalpff- plifflin; law. P-d..d ZP Z .. ichafflp.1.914(h.mat p-dweard) NgU Map. guadatup-we (sauthami led) USF & WS Survey 048 NNailis %pp. (naiad) Ngr Miss gneciffirna (naiad) Council of Governments Ec Eled. caned-al. (1-n .1wes) CCaere sp. (-kgrats) Va Valutinarfe amricana (Wild misty) N mNatilsninor(slendernalixi) IVID Charter Boat Field Survey Tn Tmpa notans (water chestnut) SCALE 124.WO Citizens Field Observation Pe Polannagt.. p1hyd- ftarty pnd..d) 0 Ml)-DNR UUnknown species composition VIRGINIA INSTITUTE OF MARINE SCIENCE 125 B NEDICT QUADRANGLE OE'A "A"' RTMENT OF THE INTERIOR 75 MINUTE SERJE'5@91@11FUAPHICI GEOLOGICAL SU!11@1.. Hill Q -11L 4,-SUBMERGED AQUATIC VEGETATION 1990 'j -A S. + E-1 Y" U L 0N k 6- INN, K 4,7 T 0@ k NOTE: Groundtruth provided by Maryland National Capital Parks and Planning Commissi Patuxent River Park DATE FLOWN Zm Z.0- .d- (.MQ-) SPECIES Hv HdHA. Hvikiam rtlydrins) SURVEY STATIONS B-1-90 RM Rupple nuidtim (witigall gmu) Hd H.Uninifftivirduhle(HoWWWWal A VIMS Fleld Survey BENEDICT, Me 1^71ophyflum s#Mm (Eunisian widerred -R) Pcr Pw...qw- i..- (-riy p..wd) Hariord Community Collew Ppf P04HIMigil P6001181M (Mdhafti-r@) It Cd C-fpilyihan d.-. (-.Wl) University MD-HPEL MD PPC INUIV-9.11- P..Lf.W- (-9. P-d-OM PPU ftt-.QW- PUsi (SIMMMIN, p-d..d) 049 Zp ZoNrUkAwl plifUSMIS (hoMed PIUKIWIMMI) NgU W-g-lidup.W.(-themini USF & WS Survey N N*-.Pp. (..W) Ngr rbi gnIdtim. (--) i 0 Council of Governments Ec Eww-densis(wirwini,nelodee) C ChM Hill. (MUSkgrM) MD Charter Boat Field Survey ve "finisr""'a (aild -Iy) Nm (.MMHMNr Hil Tn T.W..l HHHUM.1widriur) SCALE 124,W) Citizens Field Observation Pe PWWgW-= (Wady P..W-d) .5 0 MD-DNR U Unkw- sWJ" con"ll - - - - - - ""GIN:rTUIE 0 OFM SC'M' 126 UNITED SIAII.S HUDSON QUADRANGLE ULPARTMENT 01 THL INIERIOR '"Ry""' 7.5 SERIES a0f@OGRAMIQ SUBMERGED AQUATIC VEGETATION 199900 CHOPTANK RIVER OA3 PA3 ZP39 C..k P@j.' W" It 0,0 M T R I P P E KA3 Rm 0 A Y I JA3 p-I Rm IA3 OG 40 + RM HA GA3 Rm F@3 0 0 Q. DA U C 0 N K "IT CA3 BA3 Rm -In cl@ SURVEY STATIONS DATE FLOWN Zm zow. ..d.8 SPECIES HV hWrfftvMkXW&(h"r1ft) 9-1-90 RM Ruppla Intritim (VAdgeon gfeSS) Hd H.1-Iftnt dUble (WatW StrgMU) VIMS Field Survey HUDSON, MS NydIpftyIWm #@.m (E-1.. @atmfftff) Pcr ftt*,,,ogww @ispw (c "y p*"7 Harford Community College Ppf Pat-Walm peffollatitt; (redheact-erns) Cd .. :P-". (.-M.11) University MD-HPEL MD PpC pg;f-Wa- p.01-t. (.go pndw-d) Ppu Pw-g-t-pu-saw iderpond-d) Zp Z-ktWil. p.I.Ods (h-d p-&-W), Ngu NjRg,-wqp-w.(.uu..,ww) LISF & WS Survey 051 Ic @B N ftft. -pp. Ngr Np. g-igh- Council of Governments EC Ejad.& mnadonsis (wmmon elod@) C ChXnISp.(MUSkgr*s8) MD Charter Boat Field Survey Va vaisnoia amHcam wid miwy) Nrn AWs ft-, (slitd., nid) Tin ThW mfms (wattr chestnut) SrALE 124.000 Citizens Field Observation Pe P.1-.9.1-p1hydrus(I.My pnd.-d) 0 MD-DNR VIRGIMA lNSTrPJTE u unkno@ SpMW COMP0301- 0 OF MARINE SCIENCE, 127 WAR DEPARTMENT MARYLAND CORPS OF ENGINEERS U. S. ARMY CHURCH CREEK QUADRANGLE 11, 716 MINUTE SERIES W-J-37k R. t V-- Z "T N SUBMERGED AQUATIC VEGETATION 1990 0 0 R.m ------- % -7@ B R AA3 Hills Poi I.E C 0 M F T E 0 A Y CornersItill 0. Ord N E C N --- - - -------- Wnghts, ---- -------- fin .... .. .......... @@7 I-- --------------- ------ .. ......... j A M B D G E Rm N 0 7 7 % Dailsville", T PI' G 'ff @T r -A- @-j N ci@ D 'YN 0 1 CH[J/'RCH C EK adison N 9 Chtiro Creek DATE FLOWN ZM zostonsinarrina(eelgrass) SPECIES Hv f"filla WHICHISIM (hydrilla) SURVEY STATIONS 9-1-90 RM Ruppia maritima (vAilgoon gross) Hd Hotecarritions dubLo (mtw stargrears) A VIMS Field Survey CHURCH CREEK, Me blydophyll- spicaturn (Eurasian mtermiltoll) Iscr Potarnogatan cdspics (curly pondwwd) Harford Community College Ppf ftharngisf- p.,folit.. Cd Cenitophyflun, donsersun, (Coontall) University MD-HPEL MD PPC Pousniogeton pectinow (sago pondweed) Ppu Polarnagerforr PUSH)" (Sharider pand-WI) 052 Zp Zarinichellifispalustris (homed pondmirwrid) NgIJ N.J.. guadolup-is (-.the. led) USF & WS Survey N Npjasspp. (naiad) Ngr Major gracillbra (naiad) Council of Governments EC Elodes carradensis (common elodso) C Chom sp. (muskgrass) MC, Charter Boat Field Survey Va vwuanan. -n- (.w -i.ry) Nm "as nrnor (Wonder nalad) Tin Tmpa natans (orator chestnut) SCALE 124.0DO Citizens Field Observation Pe Frolarnogrefon epihydus (;eafy princhiiWid) 0 '..E U Unknom species composition ti - - . 0 MD-DNR VIRGINIA INSTITUrE 0 OF MARINE SCIEN 128 UNITED STATES ^ I ...... AIT. .1 VIRGINIA WIDE%ATER QUADRANGLE DEPARTMEN OF THE INTERIOR VW DIVISION OF MINERAL RESOURCES SVIRGI . -11AN. GEOLOGICAL SURVEY 7.5 MINUTO ERIES (T.F0011AF.-SX-1.1.11 V&,H1,d,Cd.lk KA4 Via Hv,Va,Ms.Hd Hv VAN 14d @JA SUBMERGED AQUATI V 'VEGETATION 1990 '1 Hv Gd IVIS V111 HvVa,Ms Ngu,HdV Hv,Ms,Va,Hd,Cd v,Ms,Hd,Va,Ngu Hv V 0 1-1@4 IpHyVa,Hd,NgU,MS Ms,VIii,Hv,Ccl, Hv.Ngu,Cd,MS,Hd I Hv,Ms, Ngu,Va,Hd VA,MS @4 mis,val, V "Va Ms H%A a.Mr.Hd qp Vaj. It, Va,Ms,Cd,Hd All H@ IM. Va PA. Aa MS M Hv Ms,lPc1,Va Vill D k3 Z, IlA9,NM,Cd S S S S -11 17 x ,@.1401, ZM ZosfeF, marine (eegrass) SPECIES Hv Hydrifis winikfilanto (hyddlla) SURVEY STATIONS DATE FLOWN RM Ruppla marfifte (widgeon grass) Hd M.-Itions dUble (water VIMS Field Survey 8-31-90 NIS Myrrophyllum spicatum (E-Fasian waternalfoll) Per Potamogeton Irrspus (curi yg..d"d) Harford Community College WIDEWATER, Ppf Polamogeftm perfollaW (redhead-grass) Cd C..tophyllu. d.-.- ntall) University MD-HPEL PpC Polewrogeton pechnatutr (Wgo poldwa0d) Ppu ftfawopraflm psX.. (slander pondweed) USF & WS Survey VA-MD ZP Zarinkhelhapatustris, (homed pondweed) Ngu Naiss, gnsidioupensis (southem miad) 055 N Miss spp. (naiad) Ngr terissigtectuane(miad) III Council of Governments Ec Elodere -adensis (common elode.) C Chim, so. (muskgras3) MD Charter Boat Field Survey Va Vallisherls americam (wild colery) NM Naiss, minor(slender naiad) Tn Traps nahms (water chestnut) SCALE 124,000 16 Citizens Field Observation Pe P.I...qtnp1hydrus (leafy pondolml) 0 1.. MD-DNR U unknown species composition VIRGINIA 04STITUM s 0 1 -.R OF MARNE SCIENCE 129 UNITED S A7ES DEPART ..- .1 I.E 1.-1..1 11 -UTE SERIES (TOPOGRAPHIC0 EOLOGICAL SURVEY "A 7, 77 7 )@SUBMERGED AQUATIC VEGETATION 199( N@ U 6 1@(@ U 4 (A4 V 0 GA2 0 PA3 0 1 FA&' U is 4 % y ,f IF & N',X- .r, V 0V /x D 0# 7;@ ZM SPECIES Hv Hydoffie MrUCHISIA, (hydrilla) SURVEY STATIONS DATE FLOWN RM Ruppla hradfinns (widge-n grass) Hd Htonarilftws cribl. (water ft,grasa) A VIMS Field Survey .8-31-90 MS, Myriophyflurn spica- (Eurasian at.rmiltoll) Pcr Potenogeton crispin, (cudy pond-01) N * Harford Community College NANJEMOY, Ppf Potannogrefor, pedollartus (edhead-grass) Cd corstophynum dernersuor (copritali) 3t University MD-HPEL MD PPC Pot-g.ton pctit- (sago p.nd-d) PPu lootsonogrefor, pusillu. (Slender pod.se,) ZP Zanrikhethapalustris (horned pondweed) Ngu Mirias gwd.1upensis, (Southom naiad) USF & WS Survey 056 N Nalas spp. (naiad) Ngr Abrias gracillinna (naiad) Council of Governments Ec Erodes canadenals (common elodea) C Chars sp. (muskgrass) ME) Charter Boat Reid Survey Va Valfisnerta arnericans, (wild celery) NM Narjas nitinor (slender miad) Tn Traps natans (water chestnut) SCALE 124,000 Citizens Field Observation P @S 0 -E 10 MD-DNR IS Polannogrelm ephydrus (lasty pondweed) lU Unknown species composhion VIRGINL4 'NS I .-TER OF MARINE SC 130 MATHIAS POINT OUADRANCLE INIII 1) STATES MARYLAND VIRG111A DEPARTMENT,OF THE INTERIOR 75 Ml%j@IE APHIC) GEOLOG CAL SURVEY SUBMERGED AQUATIC VEGETATION 1,990'.. T. r) FA, DA2 va, IA2 i 'R2, @Valppf 0, JA4 U134 GK CB3 D V2 3., .64 a,Cd.Pcr,Ms,Ppf 152 A82 Va.Ppf,Ppc LA YA2, XA2 A, NA2'0 0 0 wA3 CA3 0 0 0 VA3 0 Va.Ppf UA3 TA3 A3 SA2 BA2 j 0 + 0 QA2 0 0 G- ft 0 RA4 V PA2 'p CD 0 0 C AA2 Va 0 M' A- t H I A S p) I,N N E. c@ q L) 7 2- ........ .... DATES FLOVM Zm SPECIES HV Hy*ft -ftftft(hy*-) SURVEY STATIONS Flight Lines 118,119,120 8-31-90 Rm R-ppi- -mk- woo@ g-) Hd mw-m-dw*(Wftw AVIMS Field Survey Flight Lines 76, 133 , 9-11-90 MS Abljphyft. pPCW.. (E.-I- W.W.0011) Pcr Pwwnoqm@ aftpMI,(CUrIv porAhvmm Harford Community Col" MATHIAS POINT, Ppf Pot-apaW perfoJIMS (nidlind-WM) Cd cwapoam di;tvii (coonbdi) University MD-HPEL MD-VA Ppc pw-wga- wo-aw ow P-dw--m Ppu poft-awan (skndW PWAIIviied) USF & WS Survey 057 Zp ZietirikhW11. PalUstda (horried P0 III Ngu mA&- n-w) N NWm 8W. (mLod) mg, Al%w 9--mb- (@I) Council of Governments Ec Eiodm aimalsInsils (- elodw@ C . ap. (mmviiiiiii) MD Charter Boat Field Survey Va val-Ida @ mid Dewy) Nm "I,= ii*-(wndiit n") Tn Tw -ww (wow &amuo SCALE 124.ODD IIIIII Citizens Field observation MD-DNR PO VWAW INSMUTE U Unki-imil -Vtmomm OF UAM SCENM 131 UNIT W STATES UNITED STATES PO@ES CREEK OUADRANGLE DEPARTMEN1 01- 1HE NT@[IiOR DEi'ARTmEN r OF THE ARMY MARYLAND -CH.RIES COOT N GEOLOGICAL SURVEY CORM OF ENOINEERS 7.5 MINUTE SERIES (TOPOGRAPHIC BATYHYMETRIC) 51 To, j 'af C@I lt Alt ......... . 4? AA2 .7- N. 4- 38-2- ZM Zostersi =fine (earliness) SPECIES Hv Hydrffls worlicillatallrydrills) SURVEY STATIONS RM Ruppial nurritimar (,ldgeon grass) Hd hefferarth- duble (warter stargrass) VIMS Field Survey Ms Affdophyrium spic.rum (Eurasian watermilfoll) Per Potamogeton crispus (curly pondented) Harford Community College Plot Potamognow podotratus fernuad,grass) Cd Cendophyllunt demarsum (coontall) 'd University MD-HPEL DATE FLOWN PPC Potalmoselon pecfInalus (sage pondweed) PPL1 Polamogelm pusillus (slender pondwee ZP Zannichellia palustris (horned pond,eed) Ngu Nefas guadalupensis (southem naiad) USF & WS Survey 9-11-90 N NaJas spp. (naiad) Ngr Naffas limcillims (naiad) Council of Governments POPES CREEK, EC Elodea canadensts (common stories) C Cham ap. (muskgross) MD Charter Boat Field Survey MD Va Valli ... I. amed-ne (wild -1.,y) Nm -J., (.land., -I.) Tn Traps natens (water chestnut) SCALE 124.000 Citizens Field Observation 058 Pe Potaimogeton epihydr,s (leafy pond,eed) c MD-DNR VIRGINIA INSTITIM U Unknown species composiffon @l Of I KILDMETER OF MARINE SCIENCE 132 -111 D 11AILI COVE POINT QUADRANGLE I EPARTMENT OF THE IN I EHIUH GEOLOGICAL SURVEY S"rIa'S 17@11A@) 7 SUBMERGED AQUATIC VEGETATION 1990 -feed, 4@k + + All D Zp + + 'x A;- F/ TAT. 1. Zp C.. Oki, --- ----- A Zm SPECIES Hv Hydrift Ineffelfisfar (hydrills) SURVEY STATIONS RM Rupple inadilm (widgeon ipass) Hd Hateesinthere duWa (water shergress) A VIMS Field Survey DATE FLOWN Me mynophyrium spicatunt (Eurasian waterminall) Pcr Polarnogeton crispus (curly ponclaised) Harford Community College 8-1-90 p pI Potarmogero, pefforifif_ redhood-grass) Cd Ceratophyflunt dernarninan (coontall) COVE POINT, PPC Poternogetan pactinatus (sago pondweed) PPU Pohnnogetari pusillus (slender pondwood) University MD-HPEL Zp Zannichellia palustris (horned pondweed) Ngu Neiss gymostupensts (sowhern naiad) USF & WS Survey MD N AWas spp. (naiad) Ngr N&s gradninst (naiad) Council of Governments 061 Ec Efodea canadensis (conthnon siodes) C Chem sp. (muskgrass) MD Charter Boat Field Survey V8 Vallisneria arnoricitne (wild celery) Nm N.Jasneirrar(si.rd., led) Tin Trape natans (,star chestnut) SrALE 124.000 Citizens Field Observation Pe Pol-ogeto, roftoms nealy pondweed) 1 0. MD-DNR U ..knowri sparcles composition VIRGINIA INSTMITE OF MARINE SCIENCE 133 UNITE) STATES DEPAUTMENT OF THE INTERIOR TAYLORS ISLAND QUADRANGLE .A.11-AN. (;LOLOGICAL SURVEY 7.5 MINUTE SERIES RTH PHOTOMAP OOPOCRAPHIC) Fin'l 4- IA3 =HA2 JA3 G A 1, LA4 Rm Rl@ MA4 Allc C SUBMERGED AQUATIC V'-GETATION" 1990 -7 A4 B + 0 to 4:. + X A jr I ,io" -film Zm, Z-W. rhad- (eeignine) SPECIES HV Hydrina vinficlitlet. (hydrilla) SURVEY STATIONS DATE FLOWN Rm R,pplanferflim(widg. grairs) Hd Notanuithere duffle (wider stargralla) VIMS Field Survey 6-5-90 i myntophyllum spimfun, @(Eunfsfifn watermittoll) Pcr Potantogeton crisfim (curly pondareed) Hanford Community College TAYLORS lopf PotAntopton perfallaftni, (redhead-graffil) Cd C-fophyriturn do-.- (@oardl,ll) University IVID-HPEL ISLAND, MD ppc Pollanotphron P.Confiruff (.go p-dareed) Ppl.1 Poferfrogreffon pusillha Islander pondweed) Zp Zon.fh.111. p8lust'll, (horned pondweed) Ngu Pope guaderuponsis (southern nwad) USF & WS Survey 062 N N1,185 W. ("led) Ngr Af@.. g-mana, (.led) it Council of Governments EC Elodeff -adensis (coninlan alodheii) C Chane sp. (muskgrass) M IVID Charter Boat Field Survey Va Vallisneria, anericana (wild Worry) NET Majas hafnar (slender rated) Tn Trapa nalans (water ch"Inut) SCALE 124.000 Citizens Field Observation p S 0 -LE a Polalogeton ep1hydrins, (leafy pandented) MD-DNR Ll II.kn.- p..W. ...pdaitien 'ZI VIRGINIA INSTlT[JTE 1 .5 0 1 KWMETER OF MARINE SCIENCE 134 ONIH D STATES GOLDEN HILL QUADRANGLE DEPARTMENT OF THE INTERIOR MA-1- 1. GEOLOGICAL SURVEY 7.5 MINUTE SERIES ORTHOPHOT-P (TOI-RAMIC) V -:SUBMERGED AQUATIC VEGETATION 1990' _01 S j, 0. P LA ---- - --- - ----- NATIO L A < 7-* _V9 rIFE REFUGE k p N in A-, EA2 DA3 0 m -whif. 0.1, 4- __7 Finn C CA1 1P., /AnT 8 A %L@1' A SPECIES SURVEY STATIONS DATE FLOWN ZM Z..f- pip'l- (-Ig .... l4v Norm. wdjj= (hynnito) 6-5-90 RM Ruppla MHUM (widigoon grass) Hot 11.1-th- dubl. [-t. iftro-) VIMS Field Survey Ms f0y1IphyR...pl.f- (E.ranion -A@mviftill) PCr Potmagotm cdopw (cuft ponewaxii Hanford Community C.Ilep GOLDEN HILL, Ppf Pp?-WI- Mdlliff- (.0-d-g-) Cd conitophyaum d-pR, (cwntait) MD PPC --g- P-Cfl-tw (-g. po-w) PPILI P.1-M.1011 P-111U. (.I.- P.--.d) University MD-HPEL ( ZP ZonniChO710 pri-Ifl. (110-01 PondwWd) wgu N4.0 g-blup-pis (Roult- -W) USF & WS Survey 063 N AWCO Opp. ("10d) Mgr Api- gmWpMw (mied) Council of Governments Ec EAd. ..d-f. (-.-n .1W.) C Cf-p. (-.kg-) VII l4bilk-i-l-i-l- (.0d -Wry) NEIII Mallas ndnor(tlondo, =led) MD Charter Boat Field Survey Tn id) SCALE 124.000 Citizens Field Observation .5 0 PS Potamogatm op1hydw (Zy pandr-d) MD-DNR U Unh-,rp@@-Mpasftlon YMINIA DISTff= OF NAME SCOM 135 In" COMMONWEALTH OF @IRGINIA KING GEORGE QUADRANGLE UIEPAH MEN! UI !ffl- D1118ION 01 MI"E"L OE301-El VIRONIA-MARYLAND GEOLOGICAL SURVEY_ 7 5 MINUTE MRIU (T-RAPHIC - SATHYMETRICI EA4 A2 ............... -0 SUBMERGED AQUATIC VEGETATION 1990 r -T '- .......... ... . Jx Z jil Z@ jV SPECIES SURVEY STATIONS DATE FLOWN ZM Zostew marine (eelgrass) Hv Hydrilla venticillaft (thydrilla) 6-31-90 RM Ruppla mantlima (widgeon grass) Hd Hetewrithere dUbia (Water stargraSS) A VIMS Field Survey KING GEORGE, NIS Myriophyllum spicaf,m (Eurasian watermiroll) Frcr Potamogefon crispus (curty pondweed) * Harford Community College Ppf Potamogeton perfolialus (redhead-gwss) Cd Constophyntan denrowun, (coomain University MD-HPEL VA-MD PPC lootamograto, pectindrus (sago pond,eed) IPPU Potamogreton jouturflus (slender pondwasid) 065 ZP Zannichellia palusfris (horned pondweed) Ngu Isaias guadalupensis (southern naiad) USF & WS Survey N Najas spp. (naiad) Ngr N.Jes gracifflim; (naiad) Council of Governments EC Elodew canademals (common elcidea) C Chow so. (muskgmss) MD Charter Boat Field Survey Vat vwas- e-c ... (Wild @ie@) Nnn N.J.. minor (.land., noled) Tin Traps natans (Water chestnut) SCALE 124,000 Citizens Field Observation Pe Per .. g- pihyd .. (lardy p-dwowt) 0 MD-ONR U Unkno- species composition t@ - - - - VIRGINIA INSTITUTE OF MARINE SCIENCE .-R 136 DAHLGREN QUADRANGLE UNITED STATES COMMONWEALTH OF VIRGINIA VIW;INIA -MARYLAND DEPARTMENT,OF THE INTERIOR DIVISION OF MINERAL RESOU-S 7,5 MINUT RAPHIC) C ZO EOLC@LCAL SURVEY AMES LCALVER@IATE 09OLWIV 71-01A' . ........ 11 P 0 T,O M A RI E 990 SUBMERGED AQUATIC VEGETATION 1 \1W. IJ Tf A N E C , U HX3 IA -0 U GA2 U \U "I SIR U CD C, ---- ---------- 0 ------- ---------------- --------------- 0 0 7- Amo Y Au 4 DATE FLOWN SURVEY STATIONS 9-11-90 Zyn SPECIES HV Hydlf#...Hidg.M(holift) Rm Ruppin madrim (Widge- gross) Hd Hirkwand- dbIS (,mi,tilf Stivii-) VIMS Field Survey DAHLGPIEN NIS MyriophyfiUM SpIcatUrn (E-Wer, Wirtsftilf0e) ISCr Polmogelon crIspus (curly pordweed) Harford Community College VA-MD Ppf Poftn;orton parfallatus (redhee"rrmSI) Cd Comtophyflum d-rimm (ccoriall) University MD-HPFL ppC Powmagetan pmf(mtw (wp ponow0w) Ppu Pokingswun pusiffus (.W%w pgndwwd) 066 Zp Z-khwa, Ad..d. iftrrMcr WMI-t) NQU USF & WS survey N Maj-pp. (..Iw) Ngr M%f- grocUlk- (-Id) 40 Council of Goviiimmirits ED EAd- kd-) C clu- Sp. (mu,*QNuMl 1AD Charter Boat Field Survey Va VSHIS-i ... d,.- (Wuci -1-Y) Nm Tn Thim ..(-. W.%, ch.MW) SCALE 124.000 Citizens Field Observation Pe ft1-gW..= (Mly pndw-d) MD-DNR UnkmWn species cornposillon F, OF MARINE SMM U VIRGINIA MTfftrrE 137 UNITED STATES ADRANGLE 4a ..-RTMENT,OF THE INTE LANODU RIORIn COLONIAL BEACH Nm0'RTH V RV aEOLOG CAL SURVEY NAW 11, INUTE SER- (TO -BATHYM SUBMERGED AIQUATIC VEGETATION 1 990 @T 17 ....... .4 HA3 . ... ... 1A OA@ \G 0 U0 0 ly 0 (qu 0 0 U* (3 Q@ c' TV c 0 )A @OO 01@ 0 r) 6 0 A63 0 U w-, 0 V 00 > DATE FLOWN Zm zow- -d- SPECIES HV mycom wrtfcwm (Wj*M) SURVEY STATIONS B-1-90 Rm Ruppjemdt1=(vAdg*0rQ@) Hd W-MM&W(@"$WgM) A VIMS Reld Survey COLONIAL BEACH Me WrI.Oyfl-PI.W.. (E'I-W. W.U-Nff.IQ PCr Pow-ow_ ortWo (curly p&Wwd) Hadord Commurdty C011bp NORTH, VA-MD ppf potm-g-t- wfollw- (.dh..dV-@ Cd CW*tophy" dsi-uM (cooribill) University MD-HPEL mw PPC Pot-goon pocff@fw ($no pondweed) Ppu Pommoompusuhm= 067 Zp Zonnkhoffin PAIUStda (horned pondw"d) Ngu mqmgwmw-wj( USF & WS Survey N NAIA.W. (.fd) Ngr Nqjs9mwmw(nmIeM Council of Govemments Ec Ekdm conadensis (co- 910cim) C Ch" W (.UkWM) MD Charter Boat Reid Survey VIS Vagis-to snwd- (wAId COWY) mA0snwnor("WwnsW) CMzens Fold Observation Tn Tw - (@ .@W@ SCALE 124.000 Pe PotwMgWm qghjrd@ (140y pond-M 0 MD-DNR MUM ISMUM U Unk-o SPOCIOS WnWSHIM OF MAFM SCOCE 138 DEPART UNITED S ATES ROCK POINT QUADRANGLE MZNT OF THE INT RIOR MARYLAND CEOLOGICAL SURVEY 7.5 MINUTE SERIE5 (TO-A-C-SATHYMETRIC) n SU6MERGED AQUATIC VEGETATION 1990 WJ 8 A Y o .% o of k 0@ 0 % 17- 0 % R-k P@@t 33-1 76-45' ZM Zoatera marina (selgrass) SPECIES Hv Hydrilta wrnficillata (hydrilla) SURVEY STATIONS DATE FLOWN RM Ruppia mariffma (widgeon grass) Hd Hateranthere dubla (water startinass) A VIMS Field Survey 8-1-90 Ms Myriophyll- splcafurR (Eurasian atermilloll) locr Potamogeton crispus (curly pondweed) * Harford Community College ROCK POINT, Ppf Polamoge(on perfafialtur (rodhead-giniss) Cd cerarophytion; damensunt (coontalf) 3t University MD-HPEL MID PPC Potem0gelon pecOnStUS (Sligo pondwead) PPU Potamogelon pusiflus (stand*' pondweed) ZP Zenutichelfia palustris (horned pondweed) Ngui Nafas thoudejupensis (southern naiad) * USF & WS Survey 068 IN Nalas spip. (naiad) Ngr Nafas graciffirrut (naiad) Council of Governments EC Elodea canadensits (common elodea) C Chars sp. (muskgrass) MD Charter Boat Field Survey Va Vallisneria americans twild celery) NM Nalas minor (slender naiad) Tin Traps minans; (water chestnut) SCALE 124,00 Citizens Field Observation Pe Potantogeton epthydrus (leafy pon0weect 'MILE MD-DNR U Unknown species composition F- VIRGINIA INSTITUTE OF MARINE SCIENCE 139 UNITED S ATES LEONARDTO.N QUADRANGLE DEPARTMENT OF THE INTLMON MARYLAND -ST. MIRYS CO NUTS aEOLOO ICAL SURVEY SUBMERGED AQUATIC VEGETATION 1990 q 1A 10 I x A- 7 A -Z Aaa Y, L f 0 0 Zp VIV -4 0 SPECIES DATE FLOWN ZM Z.W- nw- (wignia") KV Hydl- WHICIUM (hydrilla) SURVEY STATIONS 8-1-90 RM R@Apz. mH11- (aidg- a...) Hd Mf-filava dUbW (ands, slargrass) A VIMS Field Survey LEONARDTOWN, Me AlyHophyflum spicatum (Eurasian mterninoll) Pcr -wo- ftpw (-iy laaahaaad) Hanford Community College ppf P.I.M.9al- ipftllafus (rdr-d-gras.) Cd C-fphyfl..d@a%vaW.(-ffl.II) MD PpC Potamagetan pe@tlnatus (we* pondwood), PpL1 --WW- puSIflW (Slandia, p-A-W) University MD-HPEL zp ZannkheillopRiustris(horned pondweed) Ngu, Aigas guadwisLip-ws (southern now) LISF & WS Survey 069 N Naiss spp. (naiad) Ngr Alaitapdidnaa(miad) 1P Council of Governments Ec Elodw -domsis I- Modes) C ChAra.p. (MskWass) MD Charter Boat Field Survey Va Vallisnada amerf"m (vAld celery) Nm AWAS agnortslander naiad) Tn Tmpa naters (@Iss chestnut) SCALE 124.000 Citizens Field Observation Pe Polamogslan epthydrus (IWV pondweedi MD-DNR U Link- Mwiss cangIositim VIRGINIA 1NSrffUTE 4 OF MARINE SCIENCE I 140 UNiTFL) bIAI HOLLY 0 OOD Qij@ORANOLE Eb -ILAID DEPARTMENT, OF THE INTERIOR E ) .0 1 . i GEOLOO CAL SURVEY 7.5 MIKU'rE SERI 18.112=PIMIC -21iol 0 -1 P SUBMERGED AQUA1116 VCUCIA110N 199 4sll -'x'm & m A Al A, F, "\P" 4x@ M, 4 yo a, @f JA I@A' L J, % 18 SURVEY STATIONS DATE FLOWN ZM Zat- madmir (.tgra.,) SPECIES Hv Hydrifla verticillate (hydrilla) 9-11-90 "1-, RM RUpplar marithria (Vddgeon grass) Hd Heteranthene durbie (water stargrass) A VINIS Field Survey IVIS Myriophyflum spiceftm, (Eurasian atermilloll) Pcr Pot-goto, crispue (curly porldweed) Hanford Community College HOLLYWOOD, Ppf Polamogeton perfollatus todheard-grass) Cd Camtophyltum demetsurn (coontall) Ppc Polonlogelon P-tinatus (sago por,dweed) PPU PoUrrorogeton pusillus, (Slender pondweed) University MD-HPEL MD ZP Ziumichelfia palustris (Immad pondwand) Ngu Nains guadatupensis (soutnem naiad) USF & WS Survey 070 N N.J...Pp. (naiad) Ngr Najas gmcillima (naiad) Council of Governments EC Erode. camwi .. is (common elodea) C Ch-p. (m,skgrass) Va Valflimarla americam (wild celery) Nm Mias minor (slender naiad) IVID Charter Boat Field Survey Tn Tmpa narans (water chast-) SCALE 114,000 Citizens Field Observation Pe Poismogeton epihydrus (isay pondweed) 0 MD-DNR VIRGINIA INSTITUTE U Unknown species composition OF MARINE SCIENCE 141 UNITED STATES DEPARTMENT OF THE INTERIOR SOLOMIONS ISLAND QUADRANGLE GEOLOGICAL SURVEY 7.5 Idlhknrl@ V SUBMERGED AQUATIC VEGETATION 1990, 0. U Zp C H E S A P E A K E B A Y T4 Vrr: R I Zp L A I R, V E','S T C E M T P A 7 V X E N T it, itV E 11 CHESAPEAKE BAY ....... ... U Y, SPECIES SURVEY STATIONS DATES FLOWN Zm zosweneenne (-WW-) HV HydIffla-UMAN(hydril.) Flight Line 62 B-1-90 RM Ruppla omuffftne (widgeon gress) Hd A VIMS Field Survey Flight Line 64 9-11-90 MS MyHophyflum spicafton (EumMn waterrniffoiQ Pcr ftemagwon airpm (c aly Prdw-d) Harford Community College SOLOMONS PPf P0-09.ton P.--- (hedheodVM) Cd cendwWtumdevrehoon(coonw) University MD-HPEL ISLAND, MD PPC PW-WW- P- (.W Pond-) Ppu poft-g- p-sw- ( Iender pond) Zp Zonnkhattio palusinis (horned ponde,"m Ngu MIPS gumdakpimmUs (southern nolad) USF & WS Survey 071 N mojee-m (@) Nor wee g.,dnb- (nwd) Council of Governments EC EAdem, coodensis (--n Iodw) C Ch- sp. (mu-kghmo,) MD Charter Baal Field Survey V8 V.71.-H. - IwIld celery) Nm Tn Tnwa namens Maw chostnut) SCALE 124.000 0 Citizens Field Observation PO P*Wmgw- WOWdrus 0" p-Awd) MD-DNR U Unk@ sp@ componduch, VFjGW WS7I7= OF MARM SCOM 142 UNITED STATES BARREN ISLAND QUADRANGLE DEPARTMENT OF THE INTERIOR N, GEOLOGICAL S 74 MI-E SERI 5 ORTH-TONIAP 1701-RAMIC) ,!TVEY SUBMERGED AOUATIC VEGETATION 1990 DA2 NRnn ORM ORm CA2 Rm 0 BA3 + AA3 0- IT - - - - - - - - - - - - - - - ST MAM DO U 7. 1Z - I + + r4 DATE FLOWN xl@ ZITI Zosteransodna(selgra a) SPECIES Hv Hydrifia wrlicillate hydrina) SURVEY STATIONS 6-5-90 Rm RuAphr rhadtim (widg:on grass) Hd Hoteranthers dUbla (Water slargran) A VIIAS Field Survey IMIS AfyHophyflumspi-tum(E- Ian aterntiffoll) Pcr Polamogeton crispm (curly pondenred!) Harford Community College BARREN Ppf fttahnoght- paftfidl- (iedherid-grass) Cd ceratophyn-dankirsurri(coontau) -HPEL ISLAND, MD PPC Polawrogelon p-tinstus (sago pondweed) PPU Porarnogelon pusillus alwil" pond. University MID 072 ZP Zannichellia palustris, (horned pondsed) NgU hislas guBdalupensla (sonathern naiad) USF & WS Survey CD C ;@A2 A BA3 IN Niria. pp. (naiad) N 9r Napa gne"ll"" (naiad) Council of Governments Ec Ekdow ca-d-is oorronon slode") C ..P. (muskgres.) MD Charter Boat Field Survey Va Vallisneria a-dr." (wild celory) Nm khries ndinar (slender naiad) Tn Trap. rnil- (Walkir Ch*StnUt) SCALE 124.= Citizens Field Obser@afjon P F.I.Mgirtirr a epihydrus (I-ealy pondweed) - MD-DNR U Unknown specle-orrin:niti- 1@1 I -ER VIRGINIA INSTITUTE OF MARINE SCIENCE] 143 UNITED STATES HONGA QUADRANGLE .1111 AR - EN T Of Tfl. .- ... -@ "(>1- M GEOLOGICAL SURVEY MMM SERIE MT-r@ (T-RAP-) VAC3- 90 Finn ZB Rm SUB-MERGED AQUATIC VEGETATION 19 XB2 YE13 CC3 bWBI ---@B2 - \' - -- U- J, 0 D 2 Rm NO SA S132, B4 Film T13 U 0," 2 U.Rrn f. MRM, U C 2. N BB2 OB2 aRm.- a. "n D@F Rm PB3 MB2) -7- M U M FEK XA3 M --,4-- Crops- KB4 HB3 Rm ITT Fi .0@ Eli. F1 LB3 2 0 R,,a JOS @M UAe @jg %IB2 RM IM Sf - A4 RM @M A3 JA2 N, KMA3, M C, EA4. C.- KAIj OA1 iE 0 Rm MA1 LA3 DU M PA3 CA3 Rm, Rm - BA3-1@, 4- M M3 Rm DATE FLOWN IV' ZM Zsf- -,f- (eelg,ass@ SPECIES HV HyW&W varsoldeft, (hydrHa) SURVEY STATIONS 6-5-90 RM Ruppla Mriftiner (widgeon gress) Hd Mt-M- duble (water SWW-) VIMS Field Survey HONGA, Mrs Myrfophyflum SpIcafm (Eureatan writermlifoll) locr potemoger- critious(c."y p..dw"d) Hadord Community College MD lopf P.-M perfollatus (redhead-grairs) Cd cavatophyn.-dearinnuve(coardrin) University MD-HPEL PpC ftWWQWM pectiratus (we* pondweed) Ppu potemog-r-p-aw-p-nds-) LISF & WS Survey 073 Zp Zermicheilla palustris (homed pondweed) N g u N*9 gusidarupwisis(scuumm, raw) @ZB@1' YJ N Nius, opp. (miad) Ngr Nit- gracrusse, Council of Governments Ec Ebd. carwidearris (common Modes) C Chara sp. (murikgrass) V. .-da -H-- (aliol -1.,Y) Nnn AWas na-v(shmde, raw) MD Charter Boat Field Survey Tn Traida nidans (water chestnut) SCALE 124,000 le Citizens Field Observation Pe ir - P.t-WW- plhyd- (ready pondw..d) - - - - - MD-DNR U Unknown qmcis composition VIRGD11A MMUTE OF NAME SCIEM 144 UNITED STATES WINGATE QUADRANGLE DEPARTME T OF THE INTERIOR - ouro,..- GEOLOGICAL SURVEY SUMS M-P T-R-Q Q L 4 SUBMERGED AQUATIC VEGETAT ION 1990 M AGE1 EA IVISHING B -!ILDLIFE dsk -z" J t 'Et' @j -.7 @4 say. Z Z- ,;d ed C-" r 'k-Ar Elk C; wd p6e_ 7 cr - E 0 Old LAS .7 N@A --Rm c -,4. 4 T '-k 0 \x AKA3 4, R-1 k Rm Ic A @JA4 FRnn- IAI RM FIA4 PA1 Rm QA3 Rm N RM lot' - ;,4-- 01 C ,-Rm Rm C, FA4 Rm Rm _j "ib d -h RM M h C 1 BAT@) 111@L r w, SPECIES Hv Hydria. vanuourate (hydrise) SURVEY STATIONS DATE FLOWN ZFT1 Zostwarnmidnaeolgrass) 6-5-90 RM Rupple inarillnur (widgion grass) Hd Heteverrtforre ducts (Water Witirgrass) A VIMS Field Survey WINGATE, Me illyflophyflun, Spicer= (Eurasian watermilloll) Frcr Palmerston, onspus (curty pondwsed) Harford Community College Pip Potamegeton, perfOlieft,a redhead-grass) Cd -,*p- MD PpfC Pol8mogrefon pectinatus (ugo pondreead) PPLI Polarnogelad pusillus (a , p University MD-HPEL ZP Zennichelfla palustris (horned pondweed) Ngu Nja giordistuipliduas (southino -led) USF & WS Survey 074 -w NNeas spp. (naiad) Ngr Nirlds gnirciffinna (naiad) 10 Council of Governments E. Elodise -n. (common elodrd,) CChridd SP. (Muskgrass) Va Vallisnerfa amficans (wild odlery) Nim NaJos n9nor (slender naiad) MD Charter Boat Field Survey Tn Tmpo afta- (-Ier chear-) Sc-E 1:24.000 16 Citizens Field Observation Pe P.Jam ton epihydrus(leafy pondmed) MD-DNR -g- UUnkno" species composition WAGINIA M OF MARINE =CE 145 UNITED STATES PINEY POINT QUADRANGLE DEPART.F.T,.1 T.. INTERIOR in MARYLAND ITWINIIA .EOLDO CAL SURVEY 7.5 MINUTE SERI" (TOPOGRAPHIC VF -7 @'4 r SUBMERGED AQUATIC VEGETATION 11 0 3 V U 1A k:3. Q:) % r IIL r A DATE FLOWN Zrn zosteransuffna(migrass) SPECIES HV Hydrilis Murfleffist. (hydrill.) SURVEY STATIONS 8-1-90 Rm Ruppla Muffinre (widgeon grass) Hd HIN-1h.. threat (sed. @g,@) A VIMSField Survey PINEY POINT, MS Myriophyflurn, SpIcaturn (Eurasian watenniffoll) Pcr pohanww. cdv- (.urty Reoriented) * Harford Community College MD-VA Ppf Pournrogirion peffolistur, (radhead-gress) Cd constophyflu to derearmunt (coorown) University MD-HPEL 079 Ppc Potenropelon pectinsfus (Stage pondweed) PPU Potantogalon pusitfus (denote P0ndw zp ZenniCheffl. paluStriS (homed pondw"d) 'NgU Min gusididuponsaw(Southern naiad) USF & WS Survey N Near; SPP. (naiad) Ngr AW- gerroushur pwad) Council of Governments Ec Ew. ranadensis (.M-. Idi C Chava sp. (riwaskWasts) Va v.,,.neda anwricanus (wild Priory) NM Nattorninor(slendernalued) MD Charter Bost Field Survey Tin Trap. narans (Rnner chestnut) SCALE or 24.1100 Citizens Field Observation p p iowasrog-fon p1hyd1u. (Isafy panthersed) to MD-DNR Ue - VIRGINIA DISTITUTE Ulkneen, Species COMPOS"lon 0 OF UAFME SCIENCE 146 0 UNITEII 61*11@ RICHLANU FOINI UUAURANGLE __'MENT OF HE INTERIOR IWAR L-0-DORCHESTER aEOLOGICAL SURVEY 7.5 MINUTE SERIES 0 -q :TH0pH0T0M.AP,=- 7- &O@. SUBMERGED AQUATIC VEGETATION 1990 RA3!: @BA.1 -7- R N-oM pt, C, ? up d- -w 0 SPECIES SURVEY STATIONS DATE FLOWN ZM Z-19mouldrur(eeliInSS) Hv Nydriam Mutidanis (hyxinns) 6-5-90 RM RUppis marillme (widgeon glass) Hd to"Sma"" dub's f's"' s"ripassl' A VIMS Field Survey P. MS Allydaphyll- spicatum (Euresum wwormlifoll) PCr Holamogolon crispw (curly poodwood) Harford Community College RICHLAND ppf Potmog&lw sirfolurfus (redholid-graus) Cd Corstophyflum densirsum (c- University IVID-HPEL POINT, IVID PpC Poromogeron pectimius (sago pondwoscl) Ppu pat-ogelon P..Ulus (.Mm. LISF III WS Survey 082 Zp Zarinkhollis palustris ihomed porldwood) Ngu moss gusclawponsis, (Scuthom mind) A@A2a-_-- IN Noss epp. (nalad) Ngr AWNs gradifirm (nalod) lp Council of Governments EC Eloda cSnadonsis (common elodes) C Chare sp. (muskiparics) MD Charter Boat Field Survey Va V.111,moria orruiricsor (wild colory) Nm Ciftens Field Observation Tn nsp8 noums (@tor cmsmul) I SCALE .124.000 IMAE Pe lcoumopton epihydN, (lety pondmiled) - - - - - MD-DNR VIRGINIA INSTITUTE U Link- spocies composition !=j - I=i 0 OF MARINE SCIENCE 147 GEOLOGICAL SURVEY Rm m 10114 DBT F-7 I.. I . 101 0 A %i,) F I S H I N G 0 A. Y SUBMERGED AQUATIC Ir VEGETATION 1990 1-a Haiti 8 R'm ZAI 2- -T.ddC... ORm 4 41 0 ERnn to + At n Co.. Kit. ft WA3 to R Th UA2 0 0 X A N A M I X A N C 0 V F RA4 M SA2 A4 c." se --R t -S -v B rK Ar to r R- -A- 0 --N JA4 0`0 C. --,-_P.4,2: 0 R NA3@ C M OA1, MA3 OVE KA3 or ARm ERM ir MIRm -'50R-' NRrn Rm A LA3 HA3 It A BA3 -%4- CA2 P -I __SOUTH MARSH ISLAND FA4 D SPECIES SURVEY STATIONS DATE FLOWN Zrh Zordson, iniabra (rielgrass) Hv Hydrifla Monliclitefil (hWUa) 6-5-90 RM Ruppla nuidtfins (aidgeon grass) Hd hittentraff- subtle (water surergratis) VINIS Field Survey BLOODSWORTH MS Afralophylluar spicatua, (Eurasian watenorifou) Pcr Porarrogthron chisious (curiy pondaward) Harford Community College Ppf Pottemogeton perfollatus (redhead-grass) Cd condophysivin cannershurt (coontain University MD-HPEL ISLAND, MD PPC Polunnogoton pectinatus (sago pondweed) Ppu p-behoptow P.Offl-Wands, p-ridersed) Zp Zonatchoillapalustdis (horned pornoweed) NgU Assias guardolurponsts (-U- USF & WS Survey 083 N Nalas spp. (nalad) Ngr Awes gnecutiess (.to) Council of Governments EC Elodes co,"arnsis (corturan Wittiest C China Mi. (wrinikgrass) IVID Charter Boat Field Survey V8 Vallisnorle antoricarra (wild colarty) Nnn AW-Whiv(.1taid., noted) Tin rmpo nateas (water chestnut) SCALE 124,000 Citizens Field Observation Pe Poteneesto, thydrus(Issly pondweed) 'S MD-DNR U Unknown species -pealton I=[ - t=i VIRGINIA INSTITUTE 0 OF MARINE SCIENCE 148 DEALiSLAND OUADRANCLE MARYLAND UhPANIMENT,OF THE INTERIOR AST41E OF MARYLAND OEOLOG CAL SURVEY RYLAND GEO-CAL SURVEY 7E MINUTE SERIES ORTHOPHOTOMAP iTOPOGRAP-1 7/ SUBMERGED AQUATIC VEGETATION 1990 Y -P@ At G a A -A 0 N;@" K A C, co____ - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -f C 011 L-7 + + A I --A a A 7e O-M H- IN U.M z j z-.z C" o c.- @4*' K R E A7.- r IS ;4 TA' z -% A, rA - AN M. M IS,. -'r F I RM 0 hill Ic AG D. MA2 JA3 M A3 _A3, B 0 I c!. J n, 2 -,.! .@- -1 .:..., -1 AA 2T. M@s NA3 14 Lnh ',loi,ol IM-4 . :: . . . , - S-R @MA o K 1, S!" Zfm Zostera rnarrina (eirigrass) SPECIES Hv Hydrilla VOMIC111818 (hydrilla) SURVEY STATIONS DATE FLOWN RM Ruppia nteritima (widgeon gross) Hd Hefeenthem duble (water stargrass) VIMS Field Survey 6-5-90 MS Myriophyllunt sipf@furh (Eurasian watermlifoil) Pcr Polamogeton crispus (curly pondweed) Hanford Community College DEAL ISLAND, Ppf Polantogeton perfolififus (redhead-grass) Cd Ceratophyflurn dentionsurn (coontall) University MD-HPEL PPC Potarnogelon pectinatus (wgo pondereed) PPIJ Potranogelon pusillus (slender pondweral) MD zP Zannichellia palustfis (horned pondweed) NgU NaJas guadedupirnsla (Southern naiad) USIF & WS Survey 084 N Alai- sop. (naiad) Ngr Afejes grecillbor; (naiad) Council of Governments Ec Ewes candanwa (--n aiodea) C Chera Ep. (...kg,e.s) Va velisn"'. (wild celery) NM Najas odnor (Slender natact MD Charter Boat Field Survey Tin Trope ralans (water chestnut) SCALE 124.000 Citizens Field Observation E 0 -LE Pef Potantogolar; epihydrus (leafy pondweed) MD-DNR U Unknown species composition @l VIRGINIA INSTITUTE a .-TER OF MARINE SCIENCE 149 UNITED STATES DEPARTMENT,OF HE INTERIOR STAT OF MARYLAND MONIE QUADRANOLE MIRY OHOLOO CAL SURVEY MARYLAND GEOLOOICAL SURVEY ?s MINUTE SERIES ORTHOR-HODOMAP (TO1`00RAPHIC) SUBMERGED AQUATIC VEGETATION 1990 or A Q % 'CO -a % Z W, o @-- -j O@ C :5 --0- Z@Zz-- 4@ ;f- :t R1 W--n- 1 0 V -7@ L f ------ c. _QNGREL NECK A. 7- -A P.W.- % P-A F + Ch- Tft A i vs- 0- Z Mr- R aw AA3 R E V C K A2 f 6 A z R.= M A DATE FLOWN Z111 Zoslara narrins (selgrass) SPECIES Hv hydrina MAINCIUSIB (hydrillabil SURVEY STATIONS 6-5-90 RM Ruppla Ruiritim (widgeon gross) Hd Haterienthere dubis (water stargrass) A VIIIAS Field Survey MONIE, NIS Afyriophyllum spicatum (Eurasian atemulfall) Pcr Polamogetan crispus (curly pondweed) * Harford Community College Ppf Potarnogaton perfollatus, (radhaad-grass) Cd Cendophyllumderawsurn(coontall) 39 University MD-HPEL MD Ppc Pof-goton pectinalus (Sago pandweed) Ppu Polanuageton, pusillus I Similar pondwodi, 085 Zp Zomicholliapalustris(horned pondweed) NgU Naim gumfoluponsis (scuthern mind) USF & WS Survey IN ftios app. (mi.d) Ngr Nafes g-111ftne (miad) Council of Governments EC Eladea canacrensis (cornmr, Diodes) C Cham sp. (muskgrass) MD Charter Boat Field Survey Va Vallisnerla arnericana (wild celery) NM Nallas n9nor(slender milach Tn nape natans (water chestnun SCALE 124.000 Citizens Field Observation Pe Po ogetm op1hydrus (leery pondweed!) 1 0 MD-DNR to' U Unkn- species composition VIRGINIA INSTMITE OF MARINE SCIENCE 150 KEDGES STRAITS QUADRANGLE DEPARTMENT OF THE IKTE [OR 1ARYLA10 GEOLOGICAL SURVEY 7.5 MINUTE SERIER ORTMOPHOTOMAP (T-RAPHIP Y ANE I C.- 2 BB4 V Vill, ill, Vill, VA SUBMERGED AQUATIC VEGETATION .1990_ ZA3 OR U Z TA4 C. 0 SA3 + R M 0 Al @jl S T 11 1 T S D + Rm -AA4 IA4 c... Rm S MIT. Me- FA3 Rm ZT S Rim J as A44SjjE:;;@!k VM' -ZAAI:- co, ZM Z-f- marine (eeig-ri) SPECIES Hv Hydriffa Verticillsta t hydri Its) SURVEY STATIONS DATE FLOWN RM Ruppla manitima (widge-n grass) Hd Hetensurthons dubia (wate, stargmss) A VIMS Field Survey 6-5-90 NIS Myniophyflum spicalum (Eurasian watermillod) Pcr Polam,,goton crispur, (curly pondweed) N * Harford Community College Ppf Popurrogeton penoliatus (redhead-grosti) Cd Cendophyllum demarsurn (ccontail) University MD-HPEL KEDGES PP Poternogton pectinal. (sago p..d-d) Ppu potantogeron, pusutus; (sienc , pountented) STRAITS, MD ZPC Zarmichaffla palustris (horned pandweed) 1491.1 Nayart guaditfurpensis (sounitent naiad) USF & WS Survey IN Majas spip. (naiad) Ngr Naiesgscitums(miad) Council of Governments 091 EC Elodea c.trurdern- (common elodea) C Chant so. (muskgrass) MID Charter Boat Field Survey Va Vallisneria americans (,11d celery) Nnn Usias minor(siende, naiad) Tn Traps, tudians tender Chestnut) SCALE 1:24.00 Citizens Field Observation P c a PoIllogaton opihydrus (leafy ponchueed) MD-DNR U U.- species composition VIRGINIA INSTITIHE A I .-TE. OF MARINE SCIENCE 151 TERRAP UNITED STATES UNITED STATES MIN SAND POINT QUADRANGLE DEPARTMENT OF THE INTERIOR DEPARTM NT OF THE ARMY ARY LAND-SOMERSET CO. 1.5 141.@U EOLOGICAL SURVEY CORPS OF ENGINEERS 113-E. 1-1 1-- -V K.62 o. N Rm JA3 SUBMERGED AQUATIC VEGETATION 1990 41 nn 41 + + 'H C, GA2__ R A - n%Zm BA4 - T R Ran AM C DA3 Rrn'ZM DATES FLOWN SPECIES SURVEY STATIONS 5-25-90 James & Smith Is Zm Hv hoydonts Mauduate (hydrius) 6-5-90 Deal Is. & Hazard lot. Rm Ruppia maliflors(wideirtlin grass) Hd WhiserrifteredublalvaileridieWsas) A VIMS Field Survey NIS filyriophyllurn Spicaftani (Eurasian %nderm"Off) Pcr parrarogarron atapus (curil, pondwasid) Harford Community College TERRAPIN SAND Ppf Poushogforr pefforisjuS (redhead-gfing.) Cd cNatophytaur, dameraus, (coordas) University MD-HPEL POINT, IVID PpC Pahuhniffon p..V-I- (.go pomharaid) PPU Pabonogivarn pusillus; (iflander porridweed) Z Zinurkh.111. palustris (homed pondweed) Ngu Nsfoa giesaistup-st. (..the- -led) USF & WS Survey 092 , IHAIC Np NJAa app. (.led) NI;Ir Nigiss, gnsidukes (nwad) Council of Governments Ec Eladea -nationals (comhon elodria) C Cluse.p. (.ukgr..) Va 1401sned. imserice- (,Aid I.ry) Nm Abilesmi-r(Wershir led) MD Charter Boat Field Survey Tn Trope natims (sratru chermut) SCALE 124.000 Citizens Field Observation Pe Pousnageton spihydms pesfy pondweed) .5 MD-DNR U Unkikinin qW14,11 COMPOSR10" VIRGINIA INSTITIM i'a- OF MARINE SCOCE 152 DEPARTMEN I U@ I HE (NiEHi0k -YL No--E@E6@T SER ...ILMIAL SURVEY 7 5 MINUTE IES ORTHOPHOTOMAP (T-RAPHI, 990 A\ SU)BMERGED AQUATIC VEGETATION 1 yi@ U1912 0*,\ Rm NAW-02 A q- I.. ":@1-111 - --------- ------------ TB1-' JS S1313 -A---- RmE Us- A133 _.x P" Rm M PB (a 3 RW Rm H 0 LLAND @_CK NRM*@-@@@ NB3 NT V- /a. R t IFIX JU@T ItT. 'S ILDLIFF. I A A G FN A R A 0 XB4 - 814@ - EB4 7@ 131- 0 Aal@rrn 'Tt 1 CB3= -7.U c hk,.. BX-::-@ a I B4 83. C. K Rm WA3 Rm,Zm, @nrt RRM" ZA1 Rm'. C.... U A3 RM @\U HBI YA4 B3-- XA1 S s TA2 RA4 RA3 A3 f-Is '. '- OA2 Rm Rnn-, G I Q Zinn X @A ftf-a - 3 G NU 7z 0M 7R HAi 61MA3 LA2 zp1 p- Rm rn'% DA3 ,U. A JA3 @x R @n z 3 C- 0 a7- C- .1 TZ --A 30 11,- 111. .@ .,l 5V 17-30 @il Zrn zostera frovine (991grass) SPECIES SURVEY STATIONS DATE FLOWN KV HyCJf1fi8 verfiC408 (hydrille) 6-5-90 RM Ruppla wrifirnal (yeldgeon grass) Hd Holaranifilliaw dubla (water stargrass) A VIMS Field Survey MARION, MS Myrfophyliumspicgum(Eumsianwatend oil) Pcr Patsullogelon crhqw (curly pondweed) Harford Community Collew lopf Polamagetm perfoliatus (Todftss@grass) if Cof Ceridophyfium shuritritum (cwfdoll) M D Ppc Potmagoton pectinatus (sago pandIM00d) Ppu Pow-ogoto- pus'nua (saincar ww-w) University MD-HPEL 093 Zp Zomichellis palushris (hornix! poriclImsoc!) Ngu Nalss gundisiWIMMus (scuthem nould) USF & WS Survey N 16jessp"nal") Ngr Nos gritdisim (rishild) Council of Governments Ec Eww- -ruld-f-1--illorlea) CChm sp. (rituskgraws) Via V811INIMMul-Hcam (Muo colwy) Nim AMvs9@ncr(sNMxWmlad) MD Charter Boat Field Survey Tin Trap. nalms, (water chostnut) SCALE 124,000 Citizens Field Observation Pe Poll-gatorl e0hydrus (Mary pondwind) MD-DNR U Unknov,rt spec" ewnpos#lw VIRGINIA MMM OF MARM SCIIEWX 153 UNiTED STATES EWELL QUADRANGLE DEPARTMENT'.' T.. I.TERI.R .EOLOG CAL SURVEY U@L -AA4 R BAI A EA2 'SUBMERGED AQUATIC VEGETATION 1990 Rm rn Lt GGA A.2 A2 R QA4 + Imf@ YA till @z. NOS V UA2 A BB1 NO SA 0) FB4 F CB3 ORm V.. M D1312 NO SAV M G134 HB2 SURVEY STATIONS Zm zost"inerfna(migrassif SPECIES Hv Hyddnm DATE FLOWN RM Rupple mritim (vAdqmn areas) Hd NWOMU@duWa(w&W$Wg@) A VIMS Field Survey 6-5-90 MS Myrfophyllum spicef- (Eumsian water"Ifoll) Pcr Pt-.gt- ipu. (.^ p-thamed) * Hartord Community Collew EWELL, Ppf PolaRnagetan perfollatus, (redhead-grass) Cd cmfophyaum University MD-HPEL PpC Potantogaim pectinsfus (sago pond-d!) PPU Pt-WW- P-11h. (.W MD-VA Zp Zennichelfin palustris (horned .pondwood) Ngu Awa. g..wiup..ws (.wh.. naind) USF & WS Survey 099 N Naas app. (naiad) Ngr helles gremill4rhe (.led) It Council of Governments EC Elodea canadensis (cohnnein elodes) C Chem al (-kgr-) MD Charter Boat Reid Survey Va vallisneda arned"Re ('11d mlwy) N111 Ned-ninar (slender naiad) Tn Tmps nahum, (water chestnut) SCALE 124.ODO Citizens Field Observation 0 Pe Pol-gelm epihydms (leafy pondweed) MD-ONR U Unk- spmles composition t:d MIKA tNSTlTUrE ; OF KARKE SCIENCE I 154 UNITED S ATES GREAT FOX ISLAND OUADRANGLE 01 P-TMENI OF THE INTERIOR G1 OLOGIC L SURVEY R SUBMERGED AQUATIC VEGETATION 1990 SA4 QA1 LIA2 r I I N . PA1 TAI Rnn'Z Rrrk# zM VAI X -A n % :Rmt ARm, CIA4 NA'3 Zm XA2 rh'@ -RM '@;ZrnM 4 ZA4 KA3 A132 m'Z LA2 Rm B132 Rm 44 CB4 Rm'' JA4 ..j A2 + + %A* 0 0 15 Rm. 4 ERm.Zm.U R M. In't IsIrr ARm.Zrm A2 RrrkZ DB4 Flim Rm,Zm ORM" E131 Zrin FE14 .11 a DATES FLOWN Zm zostreamerins(reigniss) SPECIES Hv ArydrIMS @Idlhde (hydrilla) SURVEY STATIONS 6-5-90 Smith & Thorofare Is. RM Ruppla manitbas (widgeon grow) Hd Hat.-thart, dulthrifiester sherg.a.) A VIMS Field Survey 5-25-90 Cedar & Janes Is. Me Alydophylluar Spicatum (E-sian wartermiltoll) PCr Pot-gaton crerpue (cday pondwaad) Harford Community College GREAT FOX Ppf Polamagotoft perfaltatus (hedheadHghh;3) Cd constophynim, dameman (c "') ISLAND, MD-VA PpC Potamogeto" pectinahAs ("go pondweed) Ppu Pt-gto. P-111. (.I-d:`pdn.' 3C University MD-HPEL ZP Zarmhchaffis palustris (horned pondweart Ngu Was gwdidupeards (scutheim naiad) * USF & WS Survey 100 N Aless spp. (naiad) Ngr Ataiss gndarme, (naiad) IS Council of Governments ED Erodes -.00-it; (common .1cde.) C Ch.10 Op. (asislagrass) V8 Vallisnerfa emerricanta (wild celery) Nm Majas minor (slander naiad) IVID Charter Boat Field Survey Tn ThWas natimir 11histrut) SCALE 124,000 Citizens Field Observation Pe ftt-gf- p1hyd- (Irraly pandweed) A 0 MD-DNR U unknown species composition - VIRGINIA INSTrrUTE 0 1 -ER OF MARINE SCIEKE, 155 UNIIED STAIhS CRISFIELD OUADRANOLE .11AR1.EN1,OF THE INTERIOR 1AERI-D-11.1- OEOLOO CAL SURVEY SE I -C@ SUBMERGED AQUATIC VEGETATION 1990 M. An Id AB+,@,IA4 YA2 L XA2 R + Rm U Rm 4; zm R W M, KA2 EA1 Zrr? JA1 A2. 4 ID m Zm + + 'Zm. 44 AA4 % - 64--- -------------- SPECIES Hv Hyd,111. -11k0hift4hydrill.) SURVEY STATIONS DATE FLOWN ZM 5-25-90 Rm RUPPIR ndil- (VIidg.- 91 ... Hd h1.k-Ih-db1.(W0-WWM) A VIMS Field Sumir CRISFIELD, MS UydqMWI= XPICW= (EUMIan wWWffdH'II) pcf P-t-mm- -*- (."I P--) Hartord Community CdWW Ppf Pat.WW- (rdh..d-gr..) Cd c@tophynum d- (mintmil University MD-HPEL MD-VA PPC POLMWWW PWOMMS (W90 W&-d) PPIJ PWmogstw PuSIUM (WwWw pwitoftd) Zp ZennietW118 PaIUSIHS (hoMOd pondW"d) Ngto mvin gund wupwws(simthern now) USF & WS Survey 101 N Mgjn Sop. (Miad) Ngf A18As9"wfift.(.Id) if Council of Governments EC Ebdm -d6nsis I[- elodW C Ch- *P' MD Charter Boat Field Survey V8 Valfl-da 8MdC1ItnI0I IWfld MIWY) Nm mv-nif@(Mndernaladl Tin rnpa nativis (mtw chowut) SCALE 1:24.000 Citizens Field Observation MD-DNR Pe mgwnogw@ sp1hydrus (IWy pondwmW) MAIM 011971TUTE U U.k-- q.,d..-.p:i*tWn 0 OF MAW 156 UNITED STATES .."A", COMMONWEALTH OF ViROINIA %,AXtS OU ADRANGLE MENT OF THE INTERIOR DIVISION OF MINERAL RESOURCES ROINIA-MARYLAII GEOLOG CAL SURVEY jAMES -.CAI-Vij.R;@.T@TE QEOI.OCIIST 75 MINUTE SERIES (TO--.,Ci SUBMERGED AQUATIC VEGETATION 1990 X- Z. F. 0 Li 0 0 Y-@ R.bi. H..d Me, Z ZZ . . . . . . . . . . . -@zz- D- B. K CBS BEASLEY SA@ AA2 DATE FLOWN ZM Zosien, hunina loolgroes) SPECIES Hv Hydrime Morridime (hydrina) SURVEY STATIONS 5-25-90 Firm Rppla Bodfirler (widgeon grinis) Hd Hokwarther, &&o(wiihe whorgrose) VIMS Field Survey SAXIS, MS Atyrfophyflun, spicaturn (Eurasian wateNniff0il) Ficr poton-agwon wepw (curly pondwom) Harford Community College VA-MD Ppf Porern0giHO, perfollatUs (redhead-gNMIS) Cd Constophyflum dornersum (coontall) University MD-HPEL PPC Potanogeter, POCIffthal (sago pondweed) PPIJ Pohnnegoton pusifflus (slender pondweed) 102 Zp Zaanktrefliepsfushis (horned pondweed) Ngu Mains guadoluponsis Boulhom holed) USF & INS SUrvey N AW...pp.(n.Id) Ngr JP Council of Governments ED Efooles .-d-rde (corn-n Iod-) C Chare ap. (nNNSkgrMr5) MD Charter Boat Field Survey VS Valfisnons onodcons (wild celery) Nm Najas ninor(mondor miad) Tn Thop. reffans (water chestnut) SCALE 124,000 1$ Citizens Field Observation Pe Potarnogeton, ep1hydrus (kely pondweed) MD-DNR U Unknown qxreles composition VIRGINLA INSTFTUTE OF MARINE SCIENCE 157 REEDVILLE- QUA RANGLT UNIILIJ SIAIL6 COMMON.EALTH 0 VIRGINIA IIA;INIA DEPARTME T OF THE INTERIOR V c DIVSION OF MINERAL RESOURCES MINUTE SERIES ITOPOGRAPHIC) EOLOGICAL SURVEY IAMES L CALVE ATE GSOL IST v . ...... .. SUBMERGED AQUATIC VEGETATION 1990 N -A, rein, sE GREAT WICOMICO A--- 0 (7. 7 wr A 711. M M A a V C K @1 R "A Ar IA2 .A, Y It -j HA2 FA3 .... .. GA2 4v EA1 AZM Rim DA B t I @.N c CA2--. =h A. A2 AA2 DATE FLOWN Zm Z..nual-drir(eelgrals.) SPECIES Hv 14jdrifflar whildiliffer (hydrithr) SURVEY STATIONS 5-25-90 RM Ruppia inariftims (widgeon glass) Hd Hateranthent dubla (water straighter) A VIMS; Field Survey REEDVILLE, MS Myriophyflum spicalum (Eurasian mtermiltoil) Pcr Potarnogethur crispus (cuq pondweed) Harford Community College VA Ppf Pt-g-fon perrolialus (redhead-gress) Cd cendrophown, dmaY,,=m:ud) University MD-HPEL PpC P.I...g.ton pirclinatu. (sago pandeared) Ppu Poushogwron pusilius I p mw) 106 Zp Zannicheffla palustris (horned pondweed) Ngu Aleas guardalurpensis (southern naiad) USF & WS Survey N fbied, spill. (naiad) Ngr AlAss, gwinuas (need) Council of Governments Ec Elode, -dan;fs (..-n Id-) C Chare.p. musirgral MD Charter Boat Field Survey Va Vieflivul anarricana (wild wary) Nm Nalar rivinor (slender naiad) Tn Tinvole nalans (miter chestnut) SCALE 124,000 Citizens Field Observation pe P.I...glon pihyd-. (hudy pondhesed) 0 MD-DNR U I n',n- VIRGM INSTrPJTE I dUOMETER OF MARNE SCIEWE 158 TANGIER ISLAND OUADRANGLE UNITED STATES COMMONWEALTH OF VIRGINIA _GINIA-ACCO.-K C. DEPARTMENT,OF THE INTERIOR DIVISI N OF MINERAL RESOURCES 7S MiM P_j 0 GEOLOO CAL SURVEY I-ES, A E GEOLOGIST LA1 SUBMERGED AQUATIC VEGETATION 1990. RMA NO SAV ZM Q ... ..1 m J A4 HA4 GA2 [Al FA4 E + + !"DA3 C, A M' BA4 H AVOR AA3 + + 4 4 SPECIES DATE FLOWN Zm zostwa mana (ealgess) Hv Hydrifts WHICIAlfitifirydrills) SURVEY STATIONS 6-5-90 RM Ruppla mritim. (widgeon grass) Hd Hateenthant duble (mader suargrass) A VIMS Field Survey TANGIER ISLAND, IMS MYntopthrilum stricaturn (Eurasian Watermilfoll) Pcr Pol-ogrefort criesuir (curly pordweed) Harford Community College Ppf lootannogrelon 001yollatUS (redhead-grass) Cd Ceratephythan dernmersumi (coonteg) University MD-HPEL VA PP Pohanogfor, pectinatus (made pondweed) PPU potarnogetart pusillus (sled., P-d-W ZPC Zannichellia palustris (horned pondweed) NgU Nelms guadalupernsts, (spullrem naiad) USF & WS Survey 107 N Najas spp. (naiad) Ngr Naims gracillinut (naiad) Council of Governments EC Eld., ..ad .. is (c.-on Id..) C Ch.. Sp. (rnuakgraws) VE1 VaNS-H8 arreficana (,ild celery) Nm Majas, ftnor(slender naiad) MD Charter Boat Field Survey Tn TMR0 nefirre, (water chestnut) SCALE 124,000 Citizens Field Observation Pe Potmogreton epthydrus (leafy pondweed) 'S U Unknom Species composition IVID-DNR VIRGINIA INSTITUTE 0 1 -rER OF MARINE SCIENCE] 159 COMMONWEALTH OF VIRGINIA CHESCO ESSEX QUADRANGLE ..,A.TM-NN-,T--,-;-H,E-INTE IOR 1i;.AC-A- 10 GEOLOO CAL SURVEY JDIVIS1 N OF MINERAL RESOURCES IS .,NU 111. ED IT AMES L C LVER, STATE OEOLOOIST UjE SUBMERGED AQUATIC'VEGETATION 1990 0 MB NB2 L Me 0 0 KB2 AM B B134 AR1 ZA4 XA2 ISLAND B A T IB4 Ir" H WA2 33@ VA2 -,;7 U4, S M 4 T H IA4 JA2 NO SAV 4" BA2 DA2 SPECIES SURVEY STATIONS U@ 'Ile ZM Z..I- horl- (.Ig,..) HV Hydriffir MirtICIREIR ftdrilla) RM Ruppla midlinie (widgeon grass) Ftd Hirlenvithern dUble (WOW stargrMIS) A VIMS Field Survey DATE FLOWN Me Myrtaphwirm s#cxr,an (E-War, watomiI Pcr PoLwr -Virfan crisDts Icurly pondweed), Hartord Community Colkw 5-25-90 Ppf Ptemg-ton perfolififul, (redhead-grahs) Cd Careh;phythanderhonruni(owntall) University MD-HPEL CHESCONESSEX, Ppc Poterriogeton pmlimfus (wito pondweed) PPLI Petarrogriton pusillus (slender pondwor Zp Zennietwifis palus (homed pondweed) NgU Mates guedidupensis (Southern hided) USF & WS Survey VA N NE/as spp. (miad) Ngr N.Iss gnienum (neird) lp Council of Governments 108 Ec, Etode. -wrerhii@ (.Dm-. tw-) C Ch-ap.(rwarkgras.) M MD Charter Boal Field Survey VS Vallisheris anwificans (wild celery) NITI Nalas ininor (slender haled) I* Citizens Field ObserVation Tn Tritpirntens(watercheirtriul) SCALE 124.= Pe P. ep1hydrue (I..Iy pDrid-d) .1 0 ..E MD-DNR U unknown SWres corripesition 1:1 - 11 VIRGD11A DISMUrE OF MAME SCIEMCE 160 40 UNITED STAIFS COMMONWEALTH OF VIRGINIA PARKSLLY UUAUR-GLL DEPARTME T OF THE INTERIOR DIVISIO-OF MINERAL RESOURCES VIRGINIA A-UMACK CO GEOLOGICAL SURVEY JAMES L CALY STATE GEOLO(UST 11 M-111. T--111@ AB -x!) - ZA13g. SUBMERGED AQUATIC VEGETATION 1990 G AL. L - @7 -1`1 11 A Y I Y B2 :0 C 4 -k XA2 VA2 A3 TA3 ?UAI 0 SAV SA1 RA3 LA2 'QA3 PA2 102 OA3 x KA4 NA2 FA2 EA3 G 3 -r. 4 '@VN 41- DA HX3 A + A3, 6 T1- 4" AR 7 SPECIES SURVEY STATIONS DATE FLOWN Ziff 2-1--drit(selgrairs) Hv HydAffl. .1fidlit. (hydrill.) 5-25-90 RM Ruppia reurriffm (widgeron glass) Hd helarenthens dubia (Water farrepar.) A VIMS Field Survey PARKSLEY, MS Myrfophyllune sericaturne (Eurasian Watemniton) Pcr fthemogelon crispery (curly pondwwd) Harford Community College VA Ppf Polarrogelan pediellatres (reethead-grass) Cd cierstphylt.. do . . . =.towir PPC P-1-9-hr- PeCt/raff- (-go P..dw@*d) Ppu Frofirnoge- purrillus (see p University lVID-HPEL 109 ZP Zininkhollia pal-fria (horned pord-d) Ngu NBJBS ensdaffuipernsis (southern naiad) USF & WS Survey N Miss sper. (naiad) Ngr Nae., gnircirions (naiad) Council of Governments EC Elodeaceeradenreffs(co monelodea) C Chm.p. (inual,greake) Va VOWS- annericarka (Wild calory) NM Majas ininor(slander naiad) MD Charter Boat Field Survey Tn T.P. -fiths (.&Iber 1h.stnut) SCALE 124,0110 10 Citizens Field Observation Fee Polamogeforr rep1hydrus (leafy poredweed) .1 0 - 0 MD-DNR U Unknom species composition VIRGINIA INSMUTE s I -O-T. OF MARNE SCIENCE 161 UNITED S ATES COMMONWEALTH OF VIRGINIA URBAMMA OUADRANGLE DEPART MENT,OF THE INTERIOR nIVISION OF MINERAL IESO@KES '111@111A EOLOG CAL SURVEY JAMES L CALVI@R,.!3TATE GEOLOGIST _E SUBMERGED AQUATIC VEGETATION 1990@@ WD. ...... ....... UA2 FA2 C, k V) IV DA2 st. C"'k + J CAZ Ir R ;it ek- SURVEY STATIONS DA 'TE FLOWN ZM Z..?- -d- (-Ig,-) SPECIES HV NdfiM1-,fid1hU(hWft) VINIS Field Survey 6-S-90 Rim RuApm -dum (widq@ U-) Hd d." (MVI-W91-0 URBANNA, I&S U),dophy1him spicafm (Eumsian winerritirfoill, Pcr px,-.gwwcftp-(-ajp.-) Harford Community College lopf P.W-Pt- 12W.U.140 (rOdIMMId-W113.) Cd cmwWiu,,,dwnivs,,m(coontau) University MD-HPEL VA lop POW710981M P.C11MMS (W90 pond-dil Ppu pow-g- p-wil- (- P-) ZpO ZmaicW19 palustris (horrwd pandwwd) Ngu Mips g,-wp..w, (.uth.. id) USF a WS Survey 110 IN N.J.. @pp. (-Id) Ngr AW- 9rdah- (..Id) 1P Council of Governments ED Eld. ..d-ft (--. Id.) C Ct- 81" (-SkgrM) MD Charter Boat Field Survey Va Valli-de -ficam (wild wiery) Nim m*.sv-(.kindr.id) Citizens Field Observation Tin Tr*8 roffift (W&W cho3tnut) SCALE 124.000 Pe Pt-.gw- wihyd- (twy p..d-w) IMAE MD-DNR U Unk@ Ved" conWositim VIRGINIA INSTITUM OFMARNESCOCE i62 UNITED S ATES COMMONWEALTH OF VIRGINIA IRVINGTON QUADRANGLE MENT DEPART OF THE INTERIOR DIVISION OF MINERAL RESOURCES 0EOLOGICAL SURVEY 75 MINUTE MRIES (TO-R-IC, -T TIC VEGETAfION 1990, SUBMERGED AQ.UA ED LA, ('5 -V V@ -3 0.. -`@'J@TA3) @c UA3 S V C @A @A 3 OA3 U M cfj KA3 i4A Rm Z ........... 10. LA4, 3 4-1 IA3 Rm v ZM -4 17. 3' Rm Z p P A H A N N --4 - - ------- B AA2 SPECIES SURVEY STATIONS DATE FLOWN Zlm Zormoa marine (raigross) HV Hydrilf. -111ditat. infant.) 6-5-90 RM Ruppla maritims (wrilgorm gross) Hd hatearmthima article (water suagrans) A VIMS Field Survey IRVINGTON, MS MYriophyffum spicatim, (Eurasian wartermithill) Pcr Poormogerm cHspw (curry Renowned) Hartford Community College Fill! Pohnnogeton perfallaturs (Nothead-gress) Cd -ftphyll", --=:nI' VA PPC latraoingf.. p.V-t.S (.go Renowned) Ppu Potemagotnt putafflu p University MD-HPEL ZP Zimakheffle joilu.1d, (homed p..dWd) Ngu Asia. gundarm, .. is (scuthean roosi) LISF & WS Survey N Nott..."p. (-led) Ngr mains gradilime (miad) Council of Governments EC Erodes cimird .. is (...an .[ad-) C Chem sp. (muskgrass) IVID Charter Boat Field Survey Va Vallismils smaricana (wild colory) Not N.J.* min., latimikir naled) Tn Dop. mthim. (-far hospital SCALE 124.0041 Citizens Field Observation Pe Poramogroton Whydrus (leafy porichward) S a -E MD-DNR u Unknoom species composition VIRGINIA tNSTrWE 1 0 1 KoOsEETER OF MARINE SCIENM 163 UNITED STATES 0 COMMONWEALTH OF VIRGINIA FLEETS SAY UADRANCLE ..f'..,MENT OF THE INTERIOR DIVISION OF MINERAL RESOURCES RDQ GEOLOOICAL SURVEY VI INI. 30" 7,5 MINUTE SERIES (TOl'OORAPHIC) r SUBMERGED AGUATIC VEGETATION 1990 2 "T R IT, Rm 'EB2 DB3 Rm rn R C E@2 Rm 7 BB3 % Ile Nt OVA1 I IA3 0 R Rin '.1 ZM S 3 ,-YA3 ZA3 RA-3- M -@%Rmm. m NA 1. Rm KA4 LA A@ Rim QA3 R JA3 OA3 Rnn,ZM + R e M'@ RM, ZM IA2 I L E ETSB A Y, 701. C ... I, 14A3 Rim OAA2 RM M. GA1 M BA2 9R AfCA4 FA EA@ M v L E Els AN --j DATE FLOYM ZM zosters havins (selgress) SPECIES Hv Hydritila nftieiliWa (hydrill.) SURVEY STATIONS 5-25-90 RM Ruppla nvarflim (widge.n gress) Hd Nershandisfe dubta (water stargralso) A VIMS Reid Survey FLEETS BAY, III Atyriophyllum SPICatu. (Eurasian walfinniffoll) Pcr Pota-golon crispus (curly pandwead) Harford Community College Ppf Poronfogaton penronatus (redheed-greas) Cd cerallophyllum diltheram (coontall) VA PpC poleanogeton pectinstus (sago pondeed) PpU Polmogeton pusilhor (slender pondweed) University MD-HPEL 112 Zp Zannichellf. p.1-fris (horned pondweed) Ngu maps, guadiduponsis (southern noted.) USF & WS Survey @EB2 R M @A@4 N Notes spp. (naiad) Ngr Naps, gh."Ifin., (-led) IIIII Council of Governments Ec Elodea caradensis (consnon olodes) C ch.. 'P' (muskgrass) MD Charter Boat Field Survey V Vallisnorlo anfericana (wild celery) N psninor (slender naiad) Tan Tmpa natans (water ChostnUt) SCALE 124,00D Citizens Field observation Pe Potmogeton epihydrus (leafy pondweed) 0 11D MD-DNR U VIRGINIA INSTITWE OF MARINE SCIENCE 164 UNITED STATES COMMONWEALTH OF VIRGINIA NANDUA CREEK QUADRANOL DEPARTMENT OF THE INTERIOR VIRCINIA-ACCOMACK CO G 0 @DIVISION OF MINERAL RESOURCES EOL OICAL SURVEY AMES L.CALVER.STATE CEOLOGIST 7SMINUTE SERIES (TOPOGRAPHIC) SUBMERGED AQUATIC VEGETATION 1990 "o + loll in C@ H E S A P A Ki E MA1 B A Y NA + + JA2 KA3 R 'A4 /NO SA GA2 RM AA2 CA4 FA4 Rm B a Zm zilteramartriii(selan-) SPECIES HV Hyena. wirliciftela (hydrilia) SURVEY STATIONS DATE FLOWN RM FlUppla MRIUMS (widgeon grass) Hd Heferanthent dubla (Wrter stargrass) VIMS Field Survey 5-25-90 MS Myriophyllum spictifunt (Eurasian watermlifoll) Pcr Polar, jifeton crispus (curly pondwead!) Harford Community College NANDUA PPf Pt-.g.8- ptifalfat.. (isdivead-fints.) Cd Ceratophyflum clamemsimi (cootall) University IVID-HPEL CREEK, VA PPC Pactmogeton pectinaluilf (ugO pondwind) PPU Polamogetan pusillus Islander pondweed) ZP Zannichellia pal-fris Chomed pondweed) NgU ".. ginscalpenl. (.WM,n naled) USF & WS Survey 113 N Males app. (naiad) Ngr Males greclifinnal (naiad) Council of Governments ED Elociew canadensis (common elocies) C Chars so. (milskgress) IVID Charter Boat Field Survey V8 Valfisnerta americans (wild misty) Nnn Males minorelender natiod) Tn Traps notans (water chestnut) SCALE 124,000 le Citizens Field Observation P .1 0 1. MD-DNR IS Polamogato, epiltydrus (leafy pondweed) - U unknown species composition VIRGINIA INSTITUTE I -TER OF MARINE SCIENCE 165 UNITED STATES COMMONWEALTH OF VIRGINIA PUNGOTEAGUE QUADRANGLE _F@Wj MENI OF THE INTERIOR DIVISION OF M NEPAL RESOURCES VIRGINIAERAICCOMACK CO GEOLOGICAL SURVEY j M S E AMES L. CALVER. STATE GEOLOGIST 7.5 NUTE S (TOPOGRAPHIC @) JI3 SUBMERGED AQUATIC/ K B4 VEGETATION 1990 e, 0 EI32 111312 FI33 ZMZPI ........ zo, 4134 z -P, 4p, 7p Zm- CIBI B2 R M Zm ZA V C' b A y + NA2 MrrL' A VVA2 r1u. NO SAV / ' 'E C A@/ MAI UA3 .1 A4 k\ NO SAV ASL UI T K-1 L L --W E c K A A2111 L -N V @LA4 Rim, rag, [A KAI 'GUR .pUNGOTEA CA1 FA3 BA2 DON 4/1 / @/ - - "I / -, t- In Rm,Zm J L - ------- CS -7 X .0 DATE FLOWN ZM Zoslwa neadrur (wrigress) SPECIES Hv Hydrate Maroomats (hydruhr) SURVEY STATIONS 5-25-90 RM Ruppla nuiritinuar (Widgeon grass) Hd Helenerthera dubLa leader stargralut) A VIMS Field Survey PUNGOTEAGUE, MS Myriophyllurn spicalum (Eurasian atenniffoil) Pcr Frotamogeton cdspus (curly pondweed) Harford Community College P f Potairrogefon pedollatus (redhead-grass) Cd ceratphyaurn dernersurn(coorrudi) VA p universtty MD-HPEL lopc Patarngton pctl-t- (.go p.nd..d) PPIJ PotarnoptoP pusillus (Islander pondweed) 114 zp ZannichelliapaluStrIS (horned pondWeW) Ngu was guadelurperaris (sauthern naiad) USF & WS Survey N Nalas spp. (naiad) Ngr N.J. gracillinsa (naiad) Council of Governments EC Elode. caruid-l. (--n Pld..) CCaere ep. (ininikilinunt) IVID Charter Boal Field Survey Va Vallisnona -ficam (Wild celery) NM N.J.. nd- islands, nalad) Cilizens Field Observation Tin Tmjm naftins; (water chestnut) SCALE 124,000 p hunogetan 1hydu,(I,,typPnd,,esd) MD-DNR U=- species composition VIRGINIA NSTFTM 0 OF MARINE SCIENCE 166 U-AR,.E@, . F-nE -E-R D ISUN U@ MINLRAL RESOUR- 11 .1-1L 1-11 GEOLOGICAL SURVEY S UBMERGED AQUATIC VEGETATION 1990 x,@ F R pv, v, x, AA2 d1I M 3. 11.2 n _z* ia@ < Ilk, Mir M PAM W N -A . . . . .. . . . . . DATE FLOWN ZIM zostwa morina (colgrass) SPECIES Hv Hyalflift verticillah, (hydrille) SURVEY STATIONS 6-5-90 Rm Ruppla mariffma (widgeh. grass) Hd heteranthere dbia (water stargratts) VIMS Field Survey SALUDA, Ms myriophytium spicaturn (Eurasian waterniffon) Pcr Potan,offeton crispuss (curly pondweed) Harford Community College Ppf lootamogelan perfollatus (redhoad-firrass) Cd Cenotophyllurn dememsum, (c-mlill 91 University MD-HPEL VA PPC Potamoptort pectinatus (eago pandwo,idj Ppu P.(-.gtn P-111u. 116 Zp Zarnichellia palustris (horned pondweed) NgU Narfas guadahipernsis (southern naiad) USF & WS Survey twi, N Miss spp. (naiad) Ngr Naias9mcillima(miled) Council of Governments Ec Ekde. canad-st. (common elodea) C Chami Sp. (Muskgrass) Va Vasnerla americans (wild celery) NM Naias minor (slender naiad) MD Charter Boat Field Survey Tn T@pa notans (water chestnut) SCALE 1:24,000 Citizens Field Observation Pe Potmogelon epilrydrus (leafy pondweed) I s -F:q F@l MD-DNR U Unknover spocies composition t=j - Li VIRGINIA 0 INST= 1 101.0- OF MARINE SC 167 WILTON ou AORANGLE VIRGINIA. U111. STATES COMMONWEAI.TH OF VIRGINIA ..'.'MENT OF THE INTERIOR DIVISI N OF MINERAL RESOURCES 75 M INUTE SERIES (TOI@OORAF CEOLOGICAL SURVEY JANIES L. CALV!,R;!jATE OEOI@OOIST SUBMERGED AQUATIC VEGETATION, 1990 'V OX K NA2 MA2 ------ OA2' G- qLA2 A- A KA2 K/1 JA2 R 74) __OHA2 A As J, 'A 0", AIR, 911- - M SPECIES SURVEY STATIONS DATE FLOWN ZM Zest" Md" (Wgr-) Hv Hydrifie vilinidlieft (hydrIMS) 6-5-90 Rim Ruppla heirflim (widgeon grinni) Hd Mater-ff- dble (Waterlitang-) A VIMS Field Survey WILTON, Me AtyrfophylluM spicaftari (E-andan Winarridifoll) Pcr poimgelancrisp- levity P6.d.-d) Harford Community College ppf P.I--gwn P-11.1w- (rodhelid-graldi) Cd candaphyllno dolnew. (:mwd) -HPEL VA Pp'C Pol-Wton peclimtus (sago po,dweed) Ppu Pooongolan p..111- (.1. P.. .w University MD Zp Zannkhelflapalustris (homed pondweed) Ngu "as guadetupensis (southern new . USF & WS Survey 117 N Moss sop. (Miad) Ngr Malo'g-lilim(mled) Council ot Governments Ec Badeit aRnadensis (conuron elodw) C Ch" sp. (mskg,..) Ve "affisn"a amfi- (Wild -l'"y) Nm AWas ininor (slander hided, MD Charter Boat Field Survey Tri TmipenadanS(widerchestnid) SCALE 124 1 Citizens Field observation PC Pofainegeloi apihydrus (lefy pondw&ed) '3- MD-DNR U Un- M-t- VIRGINIA RISTITUrE OF MAMNE SCOCE DELTAVILLE OUADRANGLE UNITED STATES COMMONWEALTH OF VIRGINIA VIRGIN11 D VISION OF MINERAL RESOURCES @APHIC) DEPARTMENT OF THE INTERIOR I GEOLOGICAL SURVEY JAMES L.CALVER.STATE GEOLOCIST Ilk ..T SUBMERGED AQUATIC VEGETATION 1990 E E 1'%-, 1 5 L A.4@9@ 41TA3 fA2 QA3 UA3 I@A2 @@SA3 RA2 E .,a A.. OA2 NA2 Z", MA2 VKA1 0 \A i JA2, ORM IA3 Rm 32'30- L'i 4 7 ..a GA2 Rm H B A Y .N --p 1 V 4 FA4 .r @A3 EA2 '--R I V 9 CA3 A@ B A Y Rm Znn/ OARfnZm GWI N N/ M r 6A2 HILLS A F3 -3. -3. ?@ w 76'15 SPECIES SURVEY STATIONS DATE FLOWN Zym Zostem Insufna ("IlIfass) Hv Hydrisa wrtiduse, (hydrina) 6-5-90 RM Ruppla nurillnuiI (,idgeon grass) Hd Hirf-Mane dubla (water allignass) A VIMS Field Survey DELTAVILLE Me Allyffophylifurn spcatum (Eurasian watermiltoll) F`Cr Polannogston crispus (Curly pondwaard) Harford Community College Ppf POt-09tOn parfolialus (redhead-grass) Cd coyistphynum darnanown (C University IVID-HPEIL Vx PPC Poffintogefor; pectinalus, (sago pondWeed) Ppu polanurgaron Rusin- ha=n.18.111) 118 ZP Zannicheffia palustirls (horned pondweed) Ngu mates, guDowupensis (southern aided) LISF & WS Survey N.J., (ruited) Ngr N.Jes 9-1111- (ruled) Council of Governments @fA'2' QA N PP Ec vadea canaidlinsfis (common eiodea) C Charlie sp. (inusligness) MID Charter Boat Field Survey Va Vallisnefift annoricaria (wild Celery) NM Najas ininor (slander aided) Tin Tmp. Surfans (water chostnut) SCALE 124,000 Citizens Field Observation Pe POI---9-fn p1hydrus (I..fy p..dwd) -0 MD-DNR 3 VIRGINIA IINSIMM U unknown species composition F=17=1 F:l -FT-Fq F========I OF MARINE SCIENCE 1 GO UNITED STATES COMMONWEALTH OF VIRGINIA JAMESVILLE 0 DEPARTMENT OF THE INTERIOR DIVISION OF MINERAL RESOU-S UADP-CLE CEOLOO ICAL SURVEY JAMES L.CALVER,STATE OEOLOOIST 7.5 MINUTE SERJEIS@@T.POORAI-) 10 -1-1 -HB2 B2 SUBMERGED AOUATIC VEGETATION 1990 L G94 JB4 B3 FB EB4 KE12 A 0 A C83 ZA XA WA2 A 4) BBZ VA k" UA4 I SCA R is ROU. T A N -4' RA m OCK AZ L-K 0 0 GA4 CA2 % Iik" 0 "T BA2 6 J. it SPECIES SURVEY STATIONS 7-23-90 DATE FLOWN Zm z-h- -d- (.Wg-) HV Hydriff. -WISM(hydrill.) Rm Ruppia mriffm (widgeon times) Nd H.Mr-dis. dbi. (Weser A VIMS Reid Survey JAMESVILLE, MS *Wcophyff...0cf..11E re.I.-ft-wriell) Pcr pot-gam amp. ourty poridweed) Harford Community College VA Ppf Potwwgstm pwanafus, Zeed-ai,eee) Cd cisiqoy',umd-m(cowudI) University MD-HPEL P@ Potwwgsim peVnetu, (is"O pondweed) PPU PoMnsgerm pusillus Islander pisiefeemid, 119 Zp Z-ftheffl. pefuSid. (rr.W prdw-d) Ngu N*. guedfpenw.(scuffeen -wd) USF & INS Survey bIt 4 @ N N*.. .(.led) Ngr m4se g,.ansns, (.Wd) III Council of Governments ED Elodws ladmals I[- siodes) C CftM Sp. (muidW884) MD Charter Boat Field Survey Va Velfix-d-ficane(Wild.01M) Nm AW-Nnor(si-de-Id) Tin rmp. mfeu, (Wew chestnut) SCALE.124,000@ le Citizens Field Observation Pe Pct-WW- Whydl- (Wely pOndimsed) MD-DNR VIRGINIA NSTfftrrE U Unknown species coniposilion 9 - - . OF MARINI! SOM 170 WARE NECK QUADRANGLE UNITED STATES COMMONWEALTH OF VIRGINIA 11-IN A DEPARTMENT OFTHE INTERIOR DIVISION OF MINERAL RESOURCES 7 1 MINIJTE SERIES ITOI@GRAPHIC' aEOLOGICAL SURVEY - - ---------- ---------- -- - -:"%; SUBMERGED AQUATIC VEGETATION 1990;@'. -'4f' All. Z --- ----------- ....... ... x .......... T 0 T A3 A3 ri .0@ UAZ 11K ..a NA2 FA4\ CAI '-PAI AM.ZM A@m D . . . . . . . . . . SPECIES SURVEY STATIONS DATF FLOWN RM Ruppla hurffirns, (Widgeon gress) Hd H.10randrove cable leader along-) A VIMS Reid Survey Zim zoetva -,I- (we-) Hir Hydrate Mandeeme, (hyarawl@ 6-1-90 Me Myd*pWlum spicadurn (Eurasian WatermIlfoll) PCr Potahlogeton crispus (curly pDndwwd) Harford Community Collep WARE NECK, Ppf PohdaPeOlOn perfallafin; (nadhood-gross) Cd canaclohytiuan diesonsium (coontan) UniverSity MD-HPEL VA 10 PpC POIWWg@tW poodrurtus, (sago pondwood) PPU P.W-9.1- P-111M (Wander pond-ed) 122 Zp Zannichollift pol-Wo (horned ponchesed) Ngu Maps. gu.".panw. (..W. naw) USF & WS Survey N Ngr Alpgoddrealnew) Council of Governments EC Elodeci canadensla (mmuran alodea) C Chans sp. (muskGrade) MD Charter Boat Reid Survey VO Valfisrardearnencom (wild celery) Nim AW.. ad- (wm., "ad) Tn TMpa nallans, (wator chestnut) SCALE 124.000 Citizens Field Observation p MD-DNR ple Poke"0901ch eohydms (leafy pondweed) U unknown species contposition VIRGIGA ISM= OF MADE SCOCE 171 UNITED STATES COMMONWEALTH OF VIRGINIA MATHEWS QUADRANGLE DEPART ... T,01 THE INTERIOR DIVISI N OF MINERAL RESOURCES 75 VIRGINIA-MATHEWS CO, G INU ER EOLOO CAL SURVEY ANES L. "LVL@.!IATE OEOLOGIST @T L Co. I 9- B@WA2 I Y 7A4 -,SUBMERGED AQUATIC@@', mild" 61 ... d. UA3 /A2 'VEGETATION X' c'- A2 J0 NA4 J, MR fi @_@4 KA4 I JA2 'c IM X SFi,. oz. T__I No GA4 21- 8 OR ........ P6U L -- - -------- 'IV - IJ__ .7 kI .4 k- AA I AM DATE FLOWN ZM Zstive ff.,R. (*We-) SPECIES Hv &v-vW*mw&owd"ft) SURVEY STATIONS 6-5-90 Rm Rppt. Rieftna (.kipwriMs) Hd A vims Pwid survey MATHEWS, Us urkowav. V1.0- (E-w- Rownswon Pcr powwostanalwo(C"Fi Harford Community College VA Ppf Cd cwOod-( University MD-HPEL Ppc --Mew- P.- (MO pw--.m pw LJSF & WS Survey 123 Zp ZMN0011. PO.Od. thfirned pdwidwo.,J) Ngu wagwidap-aw-uniiRnna-M N paj. pp. (--W) Ngr Coundl of Governmens ED Clod. (cominon .1odwiIi C Ch- W (MuCkgraw) Va V&vls-f ... d"""' (Wild c.Mwy) Nm mq..w-(ondaM MD Charter Boat FJeW Survey Tn T." ftww (..w SCALE 124.PW CWzsns ReW Observadon pe MD-E)NA potonog qww@ (WWY Pwxtwmm U u@ Sp-IRR ConwN@ OF IU@ SCOCE 172 UNIFLD ;IATF-S COMMONWEALTH OF VIRGINIA FR-KTOWN GUAf)PAN(;L!, DEPARTMENT OF HE INTERIOR DIVISION OF MINERAL RESOURCES 11ROINIA-HORTHAMPTON W. I j MIN SERIES EOLOG CAL SURVEY AMES L.CALVER.8TATF OEOLDOIST UTE (TOPOGRAPHIC) 47 0 P132 SUBMERGED AQUATIC VEGETATION 1990 0 KB2 0 JB2 2 v, 3 84. @1) 3 E132 B134 GB2 0) E L L 1 0 T T SZ F@3 N 6@, 3 jp 0 + 21- A2 + XAI t VIVA RB B2 61- VA UA2 --- -- --- Ann - A Make 3 C9 RM' zM 4 W I V/S 0 NI N E C K TA2 ZM, 0 .. .... .... HA2 ." -@ -i ..a FA4, KA4 JA2 RZ& IA41 Al@ EA3 CA3,L(@ ,?@,,NO 8AV . \@ I E AW 31- 22".. .1 SPECIES SURVEY STATIONS DATE FLOWN ZM ZO&I.. aranin. (.Igr-) Hv Hydrillb verfleftlaW (hydrillia) 5-23-90 RM Rupplannedlinratwidgeon areas) Hd hieferenthenot dulda (water Stergranna) VIMS Field Survey FRANKTOWN, IVIS Allyriaphyllum Spicatum (Eurasian watemillfoll) Ficr Pot-ogaim crftpw (curly pandenew) If Harford Community College ppf POI&MV&IM pirdolialur (redhead-graSS) Cd cennophyrium deneenI 1 39 University MD-HPEL VA Pp Pritarnagefe pectinefus(sagopandweed) PpU Phungfrur P.01" (11, ZPC Zarrkh#flfa= (horned p-dweed) Ngu Aarp. glardatup-au, (scuum. .]ad) USF & WS Survey 124 N N4as.pp. (naiad) Ngr AWA. gre.111hrre (naiad)' Council of Governments ED Eforlaw canadensis (common Modes) C Cft. p. (...kgr-) MID Charter Boal Field Survey Vill Vallianada a-icam (wild celery) Nim -Id) Tn Trgm nallans (water chestnut) SCALE 124.000 Citizens Field Observation Pe Potan"09"for; apitlydrus (leafy pondweed) 0 MD-DNR U Unknow SWISS composition VIRGINIA INSTITITIT OF MARINE SCIENCE 173 UNITED S ATES COMMON.EALTH OF VIRGINIA WESIOVER QUADRANGLE "A V'n "' DEP4RTMENT,OF HE INTERIOR DIVISION OF MINERAL REWU@ 75 --E 1E.m. GEOLOG CAL SURVEY JAMES L. CALVER. STATE GEOLOGIST ell" - - - --@SUBMERGW AQUATIC VEGETATION 1990;@ 1% 0 "'10 0 Of fk- 0 - --------------- - .IV" --Z --------------- --- 0 00 Z= ---- --- L3 - -------------- --------- - -------------- TAN BA Y 7 mv 4 V/ A 10 n SPECIES SURVEY STATIONS NOT FLOWN Zm HV WESTOVER, Rm Ruppis gram) Hd P&ININNI'MrSdUM(IMININT A VIMS FW Surow Me &VdItphylli- @PA.W- (E -,.W- -w-1111oM Per pw-.aw- wwo (@v pardw"m Harford Commurilly Callow VA pp, pow-aw- P---a (ma-ed-W-) Cd cwwn*-*-(cOonw) Uriversity MD-1I 125 PpC ftm- Ppu Pat."K. p-ma(m.-M, Zp Z-*h-wftpMftft (h..W Is-ftoom NOU NOW pooftkeofth, (Multh-TOW USF & WS Survey I'D MAW app. (n1IM1d) Ngr Awimp-move(mm) Council of Govemmeft E. EI0dW ComidamIft -1-d-) c Chm w MID Charter Boat Field Survey Ve V01-k -k- (IN11d oxi") mm mqn*x,,(ww..ww) Tn Thm @ (MINIM @hmmI SCALE 124,000 Cilimrs Field Observation pe pbow"comm opOW&W 0aft pond.40d) MD-DNR U vomwm samum 0 OF 1111111111110 SCOM 174 CLAY BANK QUADRANGLE UNITED STATES COMMONWEALTH OF VIRGINIA VIRO NIA DePARTMENT,OF THE INTERIOR DIVISION OF MINERAL RESOURCES 7.5 MINUTE SERIES CTOFOORAPHIC) OEOLOO CAL SURVEY JAMES L CALVES, STATE GEOLOGIST SUBMERGED AOUATIC VEGErATION I V, D N-l", .. . ............ + U q, 0 @) .... . ....... NA GP' A A Z RAA1 G) 10, ZITI kij L A50 Alp ZM Zostonnarins(selgrass) SPECIES SURVEY STATIONS DATE FLOWN HV H)Idlffi. -11.11I.W(hyd,1119) 6-1-90 RM Ruppi-fthrin(widgeon gross) Hd ftf-th" dubia (water NogriMS) A VIMS Field Survey MIS AfyHophyflum spicalum (Euresian waterminoff) F`Cr Potawagetan crlsp@ (cuny pDndwftd) * Harford Community College CLAY BANK, PPf Cd comaphyfon, ai- (cmiteig University MD-HPEL VA Ppc Polmogalon poctinalus (sago pondweed) PPU Patonagefon pustlim (siogio pandwd ZP Zoinkhellia pluOris (hornod pondweol) Ngu N.I.. gawoup-Si, (So.". jd) USF & WS Survey 130 N N.J.. pp. (n.lad) Ngr N.J., gradill- (n.Id) Council of Governments ED Ekid.. carifti,iSIS I.- old..) C Choo Sp. (MiakIp"Ot MD Charter Boat Field Survey Va Vwllsno@a a-1cam (wild celery) NITI Najm iWrKY(sktndo miad) Tin Tnipa natois (w,oe, cheinnid) SCALE 124,000 Citizens Field Observabon Pe Pourmogeton ep1hydrus pawy pondweed) 0 MD-DNR U unkn- "ties -position VIRGINtA INSTITIJTE OF MARINE SCIENCE, 175 UNITED STATES ACHILLES QUADRANGLE COMMONWEALTH OF VIROINIA a'. @@ART M, 'A MENT OF THE INTERIOR DIVI.ION OF MINERAL RESOURCES MINUTE SERIES (1-01@00RAPHIC) EOLOOICAL SURVEY JAMES L.CALVER.STATE QEOWQIU B2 PB2 4 RM LB2, 084 C'. RE11 JB2 R ZITI KB@ M@ 84 RM, SUBMERGED AQUATIC VEGErATION 1990 H GIS D L e" B4 -AJ 7- A4//" WA3 LRM PA2 C@ Aft r IT A 6@ 0- A4 A j- IA2 4 G C A4 0 A SPECIES SURVEY STATIONS DATES FLOWN Zm zest- .d- 0-wees) Hv hVd- -Odnft (hy-la) 6-13-90 Rim Rupple merfilme (vridgeon gmu) Hd Net-IftervI dulwe (-1. A VIMS Field Survey ACHILLES, Me A"ophyfluth SpiC&UM (EUnt"n walenni"off) locr ph-geten arkpos (..riy po Mi Harford Community CcgkW ppt Poft"VWW PW"US (Neff-d-grour) Cd VA PPC fttemoq P&COnetUe (Sago PWdwood) PPU PW-W AWA. (10edef WW..d) University MD-HPEL 131 Zp Z@khoffla polustris (homed pondweed) NgU WAS 9.0hp-M. (.Uflhm Wed) USF & WS Survey .01304 RE11 Rm Zrn N NAI (-led) Ngr mA- g..dHk- (n.W) Council of Govemments Ec Eledo. C-M.W. (cow- led.) C ChMp.(.ukWM) Va vex-f. -.d- (effid oekvy@ Nm maim awner(wende, nwed) MD Charter Boat FieW Survey Tn rh;w na-e 1waw cheemut) SCALE 124, Citizens Field Observation PO PW-.gW- Whyd- (%.fY pondweed) MD-DNR U Unk@ Ww" compoftIon vomm wsTnUrE OF 11111AFM SCEMM 176 NE. POINT COMFORT QUADRANGLE UNITED S ATES COMMON-EALTH OF VIRGINIA VIRG NIA SERI DEPARTMENT OF THE INTERIOR DIVISION OF MINERAL RESOURCES 7 5 MINUTE @,..L.=RA-C) EOLOO CAL SURVEY JAMES L. CALVER, STATE GEOUCCIIST "7-71 1 0 T At'l@ 0 N, E C K 0. PUBMERGED AOUATIC VEGETATION 199900', KA4 LA2 Rm Zm 29 NA FB3 M, oA2 7 noloo DB4 C.) EB2 PA 064 QA4 m SA4 ----- - - 2o' 20' + + le UA j, dl ZA@ WA4 N + + tv A2 .,j IA4 -"FA4 42 DAI 4) QIA2 NO SAV 64 H NO SA ARmZm CA2 AA2 B SURVEY STATIONS DATE FLOWN Zm zoarlea -H.. (.10-) SPECIES Hir hwda- va"Adirew, (",m) 6-5-90 Rm Ruppie tilarillroar (Viddill0cal OMSS) Hd Hirtivie,11amoot duels (water whagraws), VIMS Field Survey NEW POINT NIS A"ophyllutor SPICWUM (EUr"an wal-111 011) Pcr Pit, -oggw crispas (curly poachialed) Harford Gommunity Collep C Ppf P.1-09-1- poftlialM (redlemed-grass) " Cd Znclophythol, dieleallioll(Coof"l) University MD-HPEL OMFORT, VA el PpC Patiorlawl- pech-tul, (alag. P--"-") Ppu ftia-weirar, p-st"oll (ew-cw P-d-W) Zp Zannichefflapfifulft(Sihorried pondieded) Ngu AW- gLamalwupleosm (south-raw) USF & WS Survey 132 KA4 LA2 IN Maye..pp. (n.W) Ngr Awaa wiedukoe, (-w) Cound of Governments to Ec Eiedialicanaftroals(co. -nillaid.) C ChM sp. (rimaskgrams) MD Chartfer Boat Field Survey Va Val.,ed. (wild C.I.1y) Nm halgread-isloindilrommied) Tin Trem natem (water, chesmut) SCALE 0124.00) Cifizens Field Observation Pe ftt---GW- sollyams (leafy po,cheeed) I MD-DNR FT-FT7 F===========1, VIIIGINIA INSTMJTE U Link- SpecNis composition OF MARINE SCIENCE 00 177 UNITED STATES COMMONWEALTH OF VIROINIA CAPE CHARLES OU DRANGLE DEPARTMENT OF HE INTERIOR VIRCIINI-NORTNA.-N W. 0 1 JDIVIS1 N OF MINERAL RESOURCES L) EOLOG CAL SURVEY JAMES L. CALVER. sTATE GEOLOGIST 7.5 MINUTE SERIES JOI-RAPH SUBMERGED AOUATIC VEGETATION 1990 0 . .. ...... . + C PA1 I .. ............... OA4 .13 LA4.@ NA1 + + PA2 A3 D CA2 s 1BX till, --- ----- ----------- DATE FLOWN ZM z"t" neulne (Issigninsit) SPECIES Hv k"doe inewasts (hyisn") SURVEY STATIONS 5-23-90 RM Rujapla nerdthns, (eddipsion gress) Hd A VIMS Field Survey CAPE CHARLES, US andurnillfoll) locr ftoirn-gwM-&pw(&'*p.--w) Hartford Community College VIA Ppf PdtMWgWM PerfoiWins (redroad-grM) Cd coveraphyaumisseessum(Ceent.11) University MD-HPEL lopc pw-gf- P--- (Re" ww-") Ppu --osten pusasus (- Pendhinswed) 133 Zp Z-khefflapstustris(tuirrod pondweed) Ngu MR.. guseenininist. (..u.. led) USF & WS Survey N Af4exp. (.i.d) Ngr N4- ii-n- (-) Ip Council of Governments EC Eledes W..RiR(.C-n Ind.) C ChM Sp. (IrUilikeN11310) Ve inflits'-w (Wild Cwy) Nrn Aesti-ninar(.wdenruiewi) MD Charter Boat Field Survey Tin Tnw nenun, (--W Chestnut) SCALE 124.0 ;DO 16 Citizens Field Observation Pe Potwetm d0hydruir (lowly pond-011 I- MD-DNR U UnknoWn species Co"wartim VIRG11111A 0617TIM OF MAME SCOCE 178 UNITED STATES COMMONWEALTH OF VIRGINIA CHERITON OUADRANOLE DEPARTMENT OF THE INTERIOR DIVISION OF MINERAL RESOURCES VIRGINIA- NORTHAMPTON CO GEOLOGICAL SURVEY 7.5 MINUTE SERIES (TOPOGRAPHIC) .7 LD LTOWN SUBMERGED AQUATIC VEGETATION 1990 FA4 K-LI 6.@@ A3 V w A C-) C- J.) IF 17 46 I D INA N T 0 W E C K j + A- 0, 7 44 P, IA 0 4? 71 C .......... rIJ -r.. It 'y M", ED 01 K lad, oc 0 J -7 14 14 r .!)00 31 Z @4 re- DATE FLOWN Zrn zest" merina ("lorwas) SPECIES Hv Hyetrift woructustil (hyd"na) SURVEY STATIONS 5-23-90 Rm Rupplo madtime (Widgeon gress) Hd AIRWORMIM difitile (Weler steseress) VIMS Reid Survey CHERITON, Me Aloophifloo, spicatum (12"isslan wateral"010 PCf POI-Vot- Criepus (curty podsleell) Harford Community College Ppf P-whogetch, pd.-S (r:..d-grM) Cd cividephytium doehimsom University MD-HPEL VA PPC Potempga- p-Whis (.9. P..dW.0 PPU pooshopshmpiecill-wele P. Zp Zonnichefflo palusids (homed pondweed) Ngu A14as gueclaft*w"s (southern wild) USF & WS Survey 134 .40 N AW-.pp.(n.led) Ngr Aistas, r-taire, (.so) Council of Governments Ec, Elodes censdimsis (common elodm) C chons sp. (M."gress) MD Charter Boat Reid Survey Va vefil. smodc.- (Wide J.Y) Nm xpmoics(dendernwoo) Tri Thy. .0-8 (Witter ch.Mt) SCALE 124.000 IMAE CitizenS Field Observation Pe Potsmogimm sohydneit (Iody pondwood) I MD-DNR U UnknoWn species CimVeliftlee, VIRGINIA INSTMM Or MARINE SCIENCIE 179 ....... 11"ITEO S *TES COMMONWEALTH OF VIROINIA YORKTOWN QUADRANOLE o MENTiOF THE INTERIOR DIVISION OF MINERAL RESOURCES I., MINUTE S'ERIB'S- A EOLOO CAL SURVEY -W ETATION 1990 X zm tv, 'p. 9@!SUBM6168) AQUATIC VEG' 4j Ta A N A L-:@@ W -0..4 1-dw C Z' ki @14 AS ----------- -----------e AV G@77:;V rq :f, ./o FU ..L rift TA r au F -XI N n. N Ri A Zm SPECIES SURVEY STATIONS DATE FLOWN Hv 16--mmEmamrw") 6-1-90 Rm Ru*w o,%w*km (wMIq.SI wEM,) Hd A VIMS Field SurveY US NY"GPVS1-I SjWeaftlm (Eur"10 WIMvIft" p- -v avEw (.AV pw--* -ford Cm-.* Collep YORKTOWN, PPI Cd cwapVwmdmm("Of") VA Ppc --w- m-&-m ("P P-0--m PN ftb-ow- pum- Univew" MD-HPEL zp -pdwds(w-p-d-.m Ngu USF & Ws sumy 139 N MEIE. Epp, Ngr Ak- Owmd) Council of Govemnwnts E. Ehodw -dIimiWa (@ sloda) C Cft..o. (IRIU*912116) va v"Me.'"m - (.11da"y) NM ft*EE -.I- (Ekndw nM.M MD Char* SM Field Sumy Tn Th" nwSSE (W*w chmm") SCALE 124,00S' Citizens Field Observation pe 120Nmo epilrydna o*dV pondwaEM MD-DNR U Unk@ q.,dm como@ MUM WgIrfUrE 0 OF HARM SCX3= 180 POQUOSON WEST QUADRANOLE UNITED STATES COMMONWEALTH OF VIRGINIA -I- DEPARTMENT OF THE INTERIOR DIVISION OF MINERAL RESOURCES 7.5 MINUTE SERIES JO@RAPHIC) GEOLOGICAL SURVEY ZA2 AB4q @'ZYA14* I,3BI M SUBMERGED AQUATIC VEGETATION 1990 Jr 0 R 9 WA2 Z M M XA2 % TA2 A./ 12- 63 7 Saar to A2 9 J(A %0 LA3 ON1 JA4 A. 2A@ 1 114 PA4 Nn k 3"01_; DATE FLOWN ZM zomerainarlirra(ealgrear.) SPECIES Hir HydrWa verficillato (hydrilla) SURVEY STATIONS 6-1-90 Rim Ruppin mritarul (,idgeo, grass) Hd Heteratimare; duirl. (Mier stionness) A VIMS Field Survey IVIS AllydophylIUM SPICRfUnn (Eurasian watermilfoil) Pcr Pofamogeton u1spus (curly pondweed) * Hartford Community College POQUOSON Ppf Potemogeren perfallefus (redhead-grass) Cd cestophyrium damamuR, (coont:ji University MD-HIPEL WEST, VA PPC Ptarrhogforr P.111natus (.go p-d-d) Ppu Pot-g.1- P-11W. P .C) 140 ZP Z.."".111. palustris (horned pondweed) Ngu Nalas, guadatupirnsis, (southem naiad) USF & WS Survey N N.J., app. (naiad) Ngr jP Council of Governments ED Eloder canadensts (comirrion elodea) C Chase sp. (muskgrass) Va Vallisnerha -icam (wild calory) Nim Neas nunor(slender naiad) MD Charter Boat Field Survey Tin Traps narem (water Chestnut) SCALE 124,000 Citizens Field Observation Pe Potalmogedon epihydrUS (leafy pondwa0d) MD-DNR U unknown Species composition VIRGINIA INSTITUTE 0 1 -R OF MARINE SCIENCE 181 UNITED STATES COMMONWEALTH OF VIRGINIA FOGUOSON EVASCT OUADR-NGLI[ DEPARTMENT OF HE INTERIOR DIVISION OF MINERAL R-URCES 7.5 MINUTE SERJES@JITA-RAPHIC) GEOLOGICAL SURVEY 1 70. SUB'MERGED AQUATIC VEG'ETATION'1990 \J1 + C H/ E S A -p- --E- ;l' K B FA4 X L T EA2 GA3 AZITI \+ DA2 N It GA4 4 BA4' M n grKA4@ 72: I El AA2 f) < 5". 14c- SPECIES SURVEY STATIONS DATE FLOWN ZIT1 Zosters narrim (ealgrairs) Hif Hydrate nflieilkM(tridrift) 6-1-90 RM Ruppim muffirrite (widgeon grass) Hd hiet-thent d.W. (water staro-) A VIMS Field Survey POQUOSON Me Aillyrfirphyllunispicefurri(Eura anwatermilfoll) Per patem.9whan crup. (." paraw-di Harford Community ColleV Ppf Palsonagedirri p.,follatue (,.d:ad-graa) Cd civelophylknolithrientarri(coorraill) EAST, VA PpC Potamagetort pettimfus (sago pondweed) PPU Polarridgerat taodlive fideader pondwead) University MD-HPEL 141 Zp Zartnieftelflapalu (homed pondweed) Ngu Mates gLatraouperaw. (.,dh.. W) USF & WS Survey D N Nalas spip. (mfiadV)N Ngr weirfindinhoo(natial) Ilf Council of Governments Ec Erod. --dan", (common elodea) C Ch- ap. (.ukgr-) MD Charter Beat Field Survey I . -'i"- (wild celery) NM Natfattridnorlsionalarrialad) Tn Travel w..a (water cheirtnut) SCALE 1:24.001) 1* Citizens Field Observation pe Pollunogelort "Whyalms (leafy pondweed) 0 MD-DNF1 U Unk"wn M-i.. -pesoll.. - - - - - 'VIRG= 182 UNITED STATES COMMONWEALTH OF VIROINIA ELUOTTS CREEK QUADRANOLE DEPARTMENT OF THE INTERIOR DIVISION OF WHIMAL assaumcn VIRGINIA-MORTHAN"ON W. GEOLOGICAL SURVEY JAMES LCA:L 01101,00111T ?.5 MINUTE SERIES a0PWRAMC) V .......... k. SUBMERGED AQUATIC VEGETATION 1 AAl - + + j C) . . ............ Zrn zmwamwm(owwow SPECIES DATE FLOWN Hv SURVEY STATK)NS 5-23-90 Rm @ftm 1 was) Hd A vm Fwm wm ELLIOTTS au mmd- -aw"mft% p- slumof cww&vivcobp Ppf F-00404 (lafted-WM) Cd -owwainoommw(mioftm umvwft ME)-Hpa CREEK,VA PK p-m- M-(Swmw-.m pw --.V" powwow-p-*--m 142 Zp 9) Hou USF & WS &roy k AW. MIA (MI.M Nor m*[email protected] Councl of GwAwm ED Eba. c.-w-w(m wa) C . W (W.AkW.W MO Chorler Bout FWW &mvoy va Awk-bmw" Nm NOR, - - a" Tn Room f-aw WALE l2k= Cftw& AW Obwvakn pe LM-DNR ft. .' . u vll@mlllul OF@ICW=- 183 -4 rn z.V -a -a c m ol 'It I y i, I get Ix ................ CP Fn cn (Raw CLQ H A G CIIAN@X@ A,OTHY x wc CC, Sc l< @Swo Z -M C> AIR 40, Z ag m < z i - "N'. _2 OR CA)> UNITED S ATES DEPARTMENT,OF HE INTERIOR COMMONWEALTH OFVIROINIA HAM"ON QUADRANGLE 0EOLOO CAL SURVEY DIVISION OF MINERAL RESOIJRCES 11-1N.A 7.5 MINLTE SERIES (TO@RAPHIC) NA2 N 1990 SUBMERGED'..AQUATIC VEGETATIO S 4 M 4 T. L % r A4 - Al DA4 EA4 M 4 C A.A V LANGLEY CIRCE 6". + 4. 4, P of tv el ff'jz- .4 7. UA4 JLrrA'Y R-RIATIM A if@ HA MPT.ON Ro SPECIES SURVEY STATIONS DATES FLOWN ZM zostom modne (oolipas.) Hv hyd- -irilleffir (liffiffill.) 6-1-90 RM Ruppris medthroo (Widgeon gross) Hd Holoronfismo dubis (water wariposs) VIMS Field Survey HAMPTON, Me Alydophythim splOdum (Euraslan Wetennifoll) PCr POI-09WM offset. (culty porldweed) Harford Community College Ppf Potantogelm peffollatus (redhead-grins) Cd constaphynim, dersessum (ceention) VA PPC Potairrogstor; jowltrialus listed pondweed) PPU Polarogston pusillu. (.WIXW pfirultiesed) University MD-HPEL zP Zarmicheillo polusids, (homed pondwoocl) Ngu 16/m gusclolupe-do (southern rated) USF & WS Survey 147 N Notle.."P.ImIlad) Ngr hours g,.6jjft_ (_led) Council of Governments E. Efoldwe conadenift (common .1oden) C Chm op. (muskipowl) MD Charter Boat Field Survey Ve vasion"'I" "'de"' (YAW celery) NM Motsumirvar(sionder led) Tn Two note" (water chestnut) SCALE 1:24= Citizens Field Observation Pe Poumogifron ephydrus; (leafy pwdwwd) Iuss MD-DNR U UnknoWt sperchis comflissition VIRGRU 1111STITUTE -OF MAMIE SC1311121 185 CAPE HENRY QUADRANGLE UNITED S ATES COMMONWEALTH OF VIRGINIA ViRGINIA-VIROINIA BEACH CITY DEPARTMENT OF THE INTERIOR DIVISION OF MINERAL RESOURCES 7s MINUTE SERIES (r-RAPHIC) GEOLOOICAL SURVEY SUBMERGED AQUATIC VEGETATION 1990 0 e\,H E S A P E -B A y + ;a -a --A P 1, Y I A E X R 0 A D S -Z-1--t Z -BA3 CA4 G\. DA2 zl EA1- %L LYNKHAVEN BAY AV4 DATE FLOWN Zm SPECIES Hv Hydd4a weticlusta (hydrills) SURVEY STATIONS 6-13-90 Firm RUPPM, marifftre (widgeon grass) Hot Hateranthers dubia ivarter stargrass) A VIMS Field Survey CAPE HENRY, III MYHOPhYllunr spi"fum (Eurasian watermitfoil) Pcr Potamogetron crispus (wrly pondweed) Harford Community College Ppf Por .. gto. pa,'bliatus (rdh.ad-glol.) Cd Cenuophyflud, demensum (cm University MD-HPEL VA Ppu f!@I!mogeton pusullus (ahmderau"@ PpC Potamogelm cfina%q,(..g.p.nd...d) Ron , , 152 Zp Zemilh.111a p" atiB (horn ad pondweed) NgU Najas guadefurpensis (roulthem nala@) USF & WS Survey Y 11 11 A E 11 VIVA` N Najs spp. (no (1) Ngr Nalasgracillima(misid) if Council of Governments 1. .. -ned-als (common elodea) C Chamsp.(muskgtass) V. Vaa,-H-mefic M (wild celery) Nnn NaJas nunor(slender naiad) IVID Charter Boat Field Sumey Tn Thipa Wrens I= r Chestnut) SCALE 124.Mo 16 Citizens Field Observation PO Potamogsion epthydrus (leafy pondweed) MD-DNR U Unk--I-ompo,lim, VIRGINIA INSTITUTE OF MARINE SCIENCE 186 I )MMON@EALIH OF VIRGINIA PR 'S ANNE OUADR4NOL.1 ':NCE DEPAIIIENT OF THE INTERIOR N"_ VIRCINIA UE-H LITY GEOLOGICAL SURVEY 7 5 MINUTE SERIES (TOROORARHIC@ WIVI-q% V . ..... l": BA2l,'@','tN"F-j,.) SUBMERGED AQUATIC VEGETATION 1 At A J. f: 1V f 12, Ill --l N1, Z % 'S + Yl IA 8 4- A OMM MAIIAL Ault WEET" i . . . . . . . . . . . 4" cl 'p 4:R 0 -7 K W I. ., 61 L L IJ '41 7- Zrn z.SS-..'ftw("waMS) SPECIES HV "M InIfflaffilft (WJWM SURVEY STATIONS RM Ruppi. @a&m (.Wpm wass) Hd HIMMISIPUMN.41UNA(InIOW A VIMS Fleld Survey DATE FLOWN US MydWhyftm SpARsftRR(EUMSI8n WaWftffoll) Pcr -qMn*,.ftp.(.ay I, * Harford Community Cdiw 6-13@90 Ppf PW&-gW- p-W-M Cd C-ft0d--8Wll(C0-lSIl) ISK PoWwg PftdMtW (Up p-himmmd) Ppu $I University MD-HPFL PRINCESS ANNE, Zp a-khMal. palsMs (M.0 p..t."d) Ngu LISF & WS Survey VA N AWW Wp. (.WW) Ngr MV-91-ak"O") Council of Governments 157 Ec EwmeaRmwnsts(coi-Imod") C . SIR. (-kgrM) MD Charter Boat FW Survey V8 VOW-IS -Wk- (.ild .Wy) him m*wn*w(SRMx;wn@w) Tn Tw. no.. t-w Rhum) SCALE 124.0W I$ Citizens Flekl Observation 0 IRRUE pe P"Ma"'Row- dpNW&W 08* pondwIMMM MD-DNR U Pr'PrEl A-I VFAMA ws7nUTE Or MA11111111E SCIMM 187 i IN, I I D @ I I BRISTO G" R"GIE 'TA A ........ . -S Y( UBMERG ED AQUATIC VEGETATION liib g, Al Cd@'Qc, 4 t@M K) N Ec @;7 C@ dNnr, Ngi J Marylan i@@tim -NOTE: Grouncltnuth Sapital Parks 1,and'Olanning Contmission, Patuxent River Park- DATE FLOWN ZM Zcatwn-(-1g-) SPECIES HV Hydrifte v*M1d11MjhyddU3) SURVEY STATIONS 8-1-90 Rm RUppla Mrithria (widge- grass) Hd MWMMM dubi. (water A VIMS Field Survey BRISTOL, Ms Atyrfeehiritum spicatimn (Eurasian watwed"on) Pcr pt-.gt- (.-iy P.-*w) Harford Community Collew MD Ppf PohWWWOil pedollat- (rodhea"Ie5s) Cd canitopwave aia@m (@aantaa) University MD-HPEL Ppe ftear-aw- pecriaw- (..w pendwead) PPLI -M-ga- p-HIM (- P--"d) 159 zP Zmkh.111. pal-bl. (homed pi,.dweedi Ngu Neiae gueentupensis (southem naled) USF & WS Survey N AlWaS Spp@ (Miad) Ngr -gi. gdai- Council of Governments Ec E10d.8 -Mdensii, (w.-n led.) C Chive.p. (-.kWm) Via (wee **`-') N. MD Charter Boat Field Survey Tn Tmpa natans (water cheatnut) SCALE 124.000 1$ Citizens Field Observation Pe ftlanwipron #Whydms (lecify pondweed) .5 1=1 MD-DNR U Unkn- Species con"81flon VIRGRM DISTITUM 0 OFMARMSCEPM 188 UNITED STATES @RT TOBAC 0 QUADRANGLE DE--.E.T,.l HE INTERIOR SERIES M-LA.. 7.5 MINUTE IT.- "THYMETRICI OEOLOO CAL SURIE1 ':7 J9 :..'SUBMERGED AQUATIC VEGETATION Iwo, - 3. Z @7 w.. ili@ .4- r f -3 KTLX V, Z, X J@ 0 SPECIES SURVEY STATIONS DATES FLOWN Zm z0ows Ewd- (MEWEis) Hv WdWe -VdMM (hy*ft 8-13-90 Rm Rmpo. -moM, (MMig- W-) Hd d," f tww-) VIMS FIDW Survey NIS Mplophyffum PkW= (Eumalon waftnNnow PCr paimmom "two (mv I Harford Commur* College PORT PW POWWOOM WWWW (NdImsed-proils) Cd UnWwft MD-HPEL TOBACCO,MD Ppc P-wr-gm- P-HW- Ppu P-m-ow-p--r. , pWUjfdo (horrod p0ndwppo NgU MV- pjeftap"M (-M- nWMQ USF & WS Survey 161 Np 2m*Aw-w-7nmw) Ngr momp-wkm(-) CDuncil of Govemments Ec Ebdw cwa*nsis (@ ood") C Cftm W [mmkgrm) MD Charter Boat FwW Survey Ve VaNlwwdm wmd- (wild 0awy) Nra AWs.*-(WwrWwn@W) Tn TheMIrMeout, -wehomw) SCALE 124.000 16 Cftens ReW Observation ps P.M..gw- 0 IMILE MD-DNR U Uftimimom; - VFAKA RdTffUrE OF NNW SCEMCE 189 UNITED STATES ASSAWOMAN BAY QUADRANGLE DEP.11T.EN .1 T.E INTEMO. Z5 MIMARYLAND-DELA ARE GEOLOGICAL SURVEY NUTE SERIES (TOPOORAPHIC) SUBMERGED AQUATIC VEGETATION 1990,1 C3 j;@ :0 L I r r L E A . I'c. R. 11 MA N DI li I NO P A Y 0 S-r .@k W.W a 41 0 OR is P *Rm +-@ -4 + rity .0 0, S L E I Ti; B A Y DATE FLOWN ZM Zostm mdm (welgress) SPECIES HV Hydeft V.,VdL%U(hyMNl SURVEY STATIONS 6-13-90 Rm Rppl. -fth- (wmg.- o...) Nd NefteartMeredUble(W.WWWWR5111) A VIM Field survey ASSAWOMAN BAY, MS WHopholum spicfum (Eumshin wat-0011) Pcr pw-wa- -AWA (curly P.-"W) Harford Community College MD Ppt PW-gg- p.1f.IM- (.dlwmx@grassl Ccl@ cmaicphytiumciaceseum(cccnw) University, MD-HPEL PPC P-m-g-t- P-c-us (-" p--) PPLJ Pofte-get- pusiflue (W.-W- Widemed) 166 ZP Z*vvRic"11. pMU.WdS (horned pordsmed) Ndtl Allies gumMuperstilOmMithOM M111d) USF & WS Survey N mj-.pp.(..w) Ngr mq-g-mkm(rww) Council of Goverrunients EC EiRd- -..d.-I. (--. &[Rdes) C Ch-.p. (..SkW-) MD Charter Boat Field Survey Vill V.91-18 sinoricamit (milid Ce1eq) Nm mR-Rdiic,,(wwwwnwm Tn Trope naseris (water ch*Mut) SCALE 1:24.OW Citizens Field Observation Pe P.M-pel-WhydRus Osety P-dsmod) .1 - - a MD-DNR U Unknommi species coirip-111M 1@1 - 11 VMMIA 161717M OF MAROM SCEWE 190 .1 111 L I L' I L - GEOLOGICAL SURVEY 17 SUBMERGED AQUATIC VEGETATION 1990 N I 7 :-P 1-Tal 6) A b sp 4*k 7! F. mow- a* t 7 /1 6/17 4-- 1Z M, M, M A- 13A3 ;@o A4 ZM --A 7@ 7, DATE FLOWN ZM Z-f-morma(eii1gre SPECIES Hv Hydrifla wirticillata (hydrilla) SURVEY STATIONS 6-13-90 Rim RUppla manffma(Wdg:on gross) Hd Heteranthere durbia (water stargrass) A VIMS Field Survey BERLIN, MS Mydophyllurn spicatue, (Eurasian wartermilloil) Pcr Potam-ogeton crispus (curly pondweed) * Harford Community College Ppf PoLamogaton perfollatus (redhead-grass) Cd C-tophyll- dome nl University MD-HIREL MID PPC Polamogeto, pecUnattia (sago pond,eed) PPU P.I...g.lon r p slkmd: nd...l 167 ZP Zennichellia palustris (horned pandweed) NgU Nalas giradatupensis (southern naiad) USF & WS Survey N Na/as stop. (naiad) Ngr Najas graciffirria (naiad) Council of Governments EC Eloder, caned-sh, (common elodecu C Chars sp. (muskgrass) MID Charter Boat Field Survey Va Vallieneria americana (wild celery) NM Najas minor (slender nalad) Tin ]Vapa natans, (water chestnut) SCALE 1:24,000 16 Citizens Field Observation Pe Po"'ogeton ep1hydrus (leafy pond-ed) II rE MD-DNR U Unknown species composition n VIRGINIA INSTITUTE I I-ETE OF MARINE SCIENCE, 191 UNITED STATES OCEAN CITY OUADRANGLE DEPARTMENT (IF THE INTERIOR MARYLAND WOR-SIER CO GEOLOGICAL SURVEY 75 MINUTE APHIC) ERIES fT?@@R' 5 Is- S L F 0 F If I SUN; ERGED AQUATIC VEGETATION 1990 OR m B A Y @t' Ozm 1% A, n -2r .4 a- -.1,3zlev 4" i., .6- a t'Y M A bp SURVEY STATIONS DATE FLOWN 'IX Zm zoswansuffne(salgrass) SPECIES Hv h),wifas vehikinata(hinsnua) 6-13-90 Rm RuPpla nunfiftna (widgeon grass) Hd Hatierattlerrit duble (esiber shogravii) A VIMS Field Survey OCEAN C-1W, Me Mytiophyflum spicetum (Eurnslan ,staroriffolf) PCr Jobf-ogaf- P*p- I-Hy pinichesed) Harford Community Collew Ppf Potarrogelon perfallefus (redhead-grass) Cd centiophythis, denianurn, (ceentas) MD PPC Potarrorgeton pectinatus (sago pondweed) PPU pateriegison psalue (slandis PWWWd) University MD-HPEL 168 Zp 2-1chefflapalustris (horned pondweed) Ngu Aepies guadatupanius (southern naiad) USF & WS Survey N hipjaseplo(neirid) Ngr N*s graciHimas (naiad) Council of Governments Ec Bodies canadensis (cononnon efodea) C Chare Sp. (nnuid,grears) MD Charter Boat Field Survey Va Vallisnona arnericam J,Rd oilery) Nm AW.,nun-(.I-d., .W) Tin Traps ruitans, twItater chestnut) SME0124.000 Citizens Field Observation Pe Poo""ageton ephydrus (I*aty pondeeed) MD-DNR U Unkn species contposhion VIRGINIA DISTITIM OF MAFME SCIIENM 192 U@kAk@IMI Vi t"" IN EiNtuEt CEOLOGICAL SURVEY 5 MINUTE -1- T(>P,-RAPHN4 'y c N 2; Rrine MWERGED AQUATIC VEGETATION 1990 ZM 7 LAi Z171", 97m KAI a IA1 Zin, @JA4,/ SAV Z PHA4 GA4 Rmo ZM lip 'ZI ZM 'Rm ZM NA2 MA ZM Rm IDA3, Rm ?m C@ 7rn RmZ CA3 BA3 44 Z 41 IF. I*Rnn ZM r.11 Rryf-!@- @i -o- 1,-- Rmle ZIM BA3 AA3 *RM ZM 7 SPECIES Zrn Zoster-ment-ir(selgrase) Hv HYdrifiD Marlidifaia thydrilla) SURVEY STATIONS DATE FLOWN Rim RUP1M0"HlfrUfi(Mdg6 Hd mterandurne dubm ti,snar wergrass) 6-13-90 .r MS Myr"'PhYllum SPIC81urn (Eurasian andenniffail) locr Patemogwen crispua (curly pordeased) I VIMS Reid Survey TINGLES ISLAND, PPf P"Earregaien Pentruiatus, (redhead-grass) Cd Cnuqphyu.. d.-.- tc-nuu, Harford Community College PPC Pol'an"ge""I PectirefuS (sago pondsed) PPU PIstenurgaron pUsf1lS (81 r pandesed) University MD-HPEL IVID ZP Ziurnichaffia Palustris (homed PrId,,,exi) Ngu Naps guadejupensis (w and* N Alsies spp@ (naiad) Ngr Naids graicilthhe (naiad) hem -led) USF & WS Survey 170 EC Elodea canadenshi, (Conumch siod") C Ch8hr SP. (Musligrani Council of Governments Va vall'sne"'a anarricerrB (,alid celery) Nrn N-0- naincrtl.nd. ra,iad) MD Charter Boat Field Survey Tn TrW runfe" tender chestnut) SCALE .124,00 16 Citizens Field Observation pis "I"an"790"'n @PhYdnus (leafy pondvaned) U U-k.- species aN..hia. MD-DNR VIRGINIA INSTITUTE 1 0 -1 -.-ETE. OF MARINE SCIENCE 193 OLOGICAL SURVEY -:1,1111, N W !J,L INILM- oE SUBMERGED AQUATIC VEGETATION 1990 0@ OZ. Rm M Q FIM BAY BROCKATO NORrON R BAY Rm ZM MA3 *RM + M ORM + ROWLEY ZM 4./ JOHNSON RM B A Y CP R;6 Zrn Rme % \JA4 c 1A ... T G ZrrIkY S A All A4 2 + 1-14P Y 3 a'a's oz Rm S L A 7M PVRNELL DAY RM Zm. 1--EA1 4- -------------- T- DA3 N T 1 0 L x BA3 eYl u. A r ly .61, oc- B. -o' I 4tree DATE FLOWN SPECIES SURVEY STATIONS 6-13-90 ZM Zostera nnarna (eegrass) HV Hydrifla Yaniiffata (hydrilla) RM Ruppia marifirna (widgeon grass) Hd Henerammare dubia (water slargraSS) A VIMS Field Survey BOXIRON, MS Myrmphyflun spicalum (Eurasian waternmHoil) Pcr Pot- ge- c-pus (..rty p.,,d...d) Harford Community College MD-VA PPf Polamogelon PerfoliatuS (tedhOad-grass) Cd cerstopijyuum demersurn (co University MD-HPEL c lopu pot .. get- puillu. (.;I_d. orde") Plo Potamogeton pectinalus (sago pord,eed) rp..., 172 ZP Zannichallia palustriS (horned pondweed) USF & WS Survey Am Ngu Nefas guadalurpensis (southern naiad) @ *ZR- M M@A M J/ N Najas spp. (naiad) Ngr Neias gracillima (naiad) Council of Governments Ec Elodee camadensis (common elodea) C Cheva Sp. (musligress) MD Charter Boat Field Survey Va Vallisnefi, mencona (wild celery) N m NBas nuno,(slender naiad) Tn riaps natans (water chestnut) SCALE 1 @24.000 Citizens Field Observation Pe Polamogelon epitrydrus (leafy pondweed) IVID-DNR U Unknown species composition VIRGINIA INSTITUTE s e I aacwETER OF MARINE SCIENCE 194 UNITED SIATES -HITTINCTON POINT QUADRANGLE DEPARTMENT,OF THE INTERIOR GEOLOG CA SURVEY SERIES (70-APHIC) SUBMtRGED" AQUATIC VEGETATION 1990 4, BY Rm Rril -ZM NO SAV M zM M ARM Rm Zinn- 07.fii' FA3 EM s.- Rm RM *Rr; $Rni <-- + DPA "o Ga.- RV BAY OCA4@. Rrln*68A@ ORM AM 0/-, 'A + + '.A I Rm, SPECIES SURVEY STATIONS DATE FLOWN ZM Z..W. manne (-Ig...) HV Hydefile -Vdgft thydrift) 6-13-90 RM Rupple maritime (widge-n grew) Hd Menwitharra, duld, (water seargrati A VIMS Field Survey Me Myriophyffurn spfcat@ (Eurasian watem-difoll) Pcr Potionogetem cdWa(curi, I @ i * Harford Community Collep WHITTINGTON Ppf Paf-09.1- PdoII.I- (rdh..d-g-.) Cd carmtophyisma damemsons (cessial University MD-HPEL POINT, MD-VA PPC P.M.-g-f-Peefinat-fasitopendensod) PPU ZP ZanniChfifliapitIUSMS(horried pondw"(1) Ngu Awes goadopponsta (southem ridecti USF & WS Survey 173 N Nalas spip. (naiad) Ngr Netesime-(asisso) Council of Governments EC Eld. ...d..Is (.I-. led.) C Chave sp. (muskgrass) VM VaMI&MM, americarre (wild calery) Nnn Aw- minorwarder, nateoll MD Charter Boat Field Survey Tn Trope natans, (water chsamut) SCALE 1:24.000 Chizens Field Observatlon PIS Potan-gatcan epthydrus (testy pondeassid) A - 0 ness MD-DNR U unknown Weiss composition Fq-F=rT=rT:r1q WRGINIA MST1TLrrE a 0 1 -us OF MAFME SCIENCE I 195 rhINCOTEAG E EAST QUAD-Glf QEOLOGICAL SdRVEY BA2 -7@ ./SUBMERGED AQUATIC VEGETATION 1990 t-IN 11@@-@r 4., ARm Zm 1v cl /A 41 y V C, F/ r Awl Ij W Z, m T- C.- L TOMS COVE. j@ DATE FLOVVN SPECIES SURVEY STATIONS Zm z.&.. -,'-a wania.) Hv Hinuma vankimidoihiminn.) 6-13-90 Rm Rppl-lifinia(Milpo.q..) Hd H-WiviffianidlWit(awhii-taren") A VIMS Field Survey CHINCOTEAGUE MS Myriaphyll- SPICalu. (Eurasian watainniffall) Pcr Pt-.gw- w- (..dy podw-d) Harford Community Collew EAST, VA Ppf Porainagwan Penionalits (radhea"Fass) Cd conatophyaum, d-um (cwimau) University MD-HPEL PPC fti-Wfan pWinaf- (saga p-d-c!) PPU Pot-gftOn PUSilliat (SWOOr POndWeed) Zp ZenniChOilla paluidr`15 (horrod Pondwftd) Ngu NpjaxgLmidaft4;,aaais(aauthann wad) USF & WS Survey 175 N Naiass .(naiad) Ngr mpgnaduk-(raiad) Council of Govemments 0 EC 1510daa :nadonsls (-inon Modes) C Ch" SP. (Misakilrall,S) MD Charter Boat Field Survey Va Vallisneda arnericana (wild W") Nm Naiiisalw(imendiirnidad) Tn Tnipa nwans (wvt*r chestnut) a SCALE .1 24.OOD Citizens Field Observation Pe posamogeta, ep1hyd- peah, pondwaad) =@ F=1 MD-DNR U Unk- $Wies cantposhian FT,;q F1 VIINIM IIISTRIM A OF MANKE SCMNIX 196 40 @APPENPIX D 1990 SAV Bed Arleas'And Density Totals For Each, Tooographic, Q4adrangle. 10' 197 APPENDIX D Number Of Square Meters Of SAV In 1990 For Individual Beds And Totals For Density Categories By Topographic Quadrangle. (See Maps In Appendix C For Location Of Each Bed. Quadrangles Are Listed Numerically By VIMS Map Number. Slight Differences In Totals From Tables 4, 5, and 6 Are Due'lb Round- ing.) ABERDEEN,MD. RA1 193657 VIMS MAP # 002 SA4 222949 TA3 2882 AA3 5417 UA4 9866 BA3 1961 VA4 8999 CA3 742 WA4 5523 DA3 1953 XA4 3540 EA3 3676 YA3 937 FA3 7492 ZA3 2657 AB2 16819 TOTALAREA BB3 50806 CB4 11395 DENSITY 1 = 0 DB4 29607 DENSITY 2 = 0 EB4 5657 DENSITY 3 = 21241 FB4 16800 DENSITY 4 = 0 GB4 2156 HB4 3161 TOTAL 21241 IB4 169279 JB4 2682 HAVRE DE GRACE, MD. KB4 7559 VIMS MAP 003 LB4 4054 MB3 77917 AA2 5845 NB4 4987 BA2 29621 OB4 3176 CA1 17996 PB3 9119 DA2 314623 QB3 3682 EA1 14962508 RB3 9813 FA1 1557 SB2 1177 GA2 3709 TB4 27927 HA2 41436 IA3 2048 TOTALAREA JA4 44308 KA2 2984 DENSITY 1 = 16129190 LA4 79217 DENSITY 2 = 532248 MA4 160848 DENSITY 3 = 205634 NA3 45773 DENSITY 4 = 833220 OA2 116034 PA1 953472 TOTAL 17700292 QA4 9530 198 NORTH EAST, MD. TOTALAREA VIMS MAP # 004 DENSITY 1 = 166198 AA.2 45001 DENSITY 2 = 343276 BA2 100212 DENSITY 3 = 0 CA2 80480 DENSITY 4 = 0 DA2 838265 EAl 45899 TOTAL 509474 FA2 34310 GA2 159443 EARLEVILLE, MD. HA2 163284 VIMS MAP 010 TOTALAREA AA2 55211 BA2 30277 DENSITY 1 = 45899 CA2 5231 DENSITY 2 = 1420995 DAl 22433 DENSITY 3 = 0 EA2 12051 DENSITY 4 = 0 FA2 18184 .GAl 126865 TOTAL 1466894 HA2 278450 IA2 1051871 ELKTON, MD.-DEL. JAl 68604 VIMS MAP # 005 TOTALAREA AA2 384482 BA2 11417 DENSITY 1 = 217902 DENSITY 2 = 1451275 TOTALAREA DENSITY 3 = 0 DENSITY 4 = 0 DENSITY 1 = 0 DENSITY 2 = 395899 TOTAL 1669177 DENSITY 3 = 0 DENSITY 4 = 0 MIDDLE RIVER, MD. VIMS MAP # 013 TOTAL 395899 AA3 6933 SPESUTIE, MD. VIMS MAP 009 TOTALAREA AA.2 27581 DENSITY 1 = 0 BA2 189570 DENSITY 2 = 0 CA2 108398 DENSITY 3 = 6933 DAl 166198 DENSITY 4 = 0 EA2 13285 FA2 4442 TOTAL 6933 199 A26 GUNPOWDER NECK, MD. BETTERTON, MD. VIMS MAP 014 VIMS MAP # 016 AA2 4523 AA2 30264 BA2 4884 BA2 2105 CA2 4378 CA2 9934 DA2 10807 EA2 7787 TOTALAREA FA3 29324 GA2 19262 DENSITY 1 = 0 HA3 194422 DENSITY 2 = 42303 IA1 10345 DENSITY 3 = 0 JA3 941 DENSITY 4 = 0 KA3 77083 LA3 61203 TOTAL 42303 MA3 10017 NA3 3471 (,'AI,ENA, MD. OA3 187544 VIMS MAP # 017 PA4 271498 AA2 74175 TOTAL AREA BAl 5178 DENSITY 1 = 10345 TOTALAREA DENSITY 2 = 51-641 DENSITY 3 = 564005 DENSITY 1 = 5178 DENSITY 4 = 271498 DENSITY 2 = 74175 DENSITY 3 = 0 TOTAL 897489 DENSITY 4 = 0 HANESVILLE, MD. TOTAL 79353 VIMS MAP # 015 SWAN POINT, MD. AA2 11467 VIMS MAP # 020 BA3 5536 CA2 46323 AA2 28482 BA2 14435 TOTALAREA CAI 7652 DA2 3610 DENSITY 1 = 0 EA2 3519 DENSITY 2 = 57790 FAl 6960 DENSITY 3 = 5536 DENSITY 4 = 0 TOTALAREA TOTAL 63326 DENSITY 1 = 14612 DENSITY 2 = 50046 200 DENSITY 3 0 TOTALAREA DENSITY 4 0 DENSITY 1 = 114150 TOTAL 64658 DENSITY 2 = 39666 DENSITY 3 = 309816 ROCK HALL, MD. DENSITY 4 = 14261 VIMS MAP # 021 TOTzkL 477893 BA3 7156 CA3 28644 KENT ISLAND, MD. DA3 9206 VIMS MAP 032 EA3 23929 FA4 4354 AA2 198425 GA2 42517 BA4 24113 AA2 4197 CAI 242991 DAl 65018 TOTALAREA EA4 23411 FA2 195611 DENSITY 1 = 0 GA1 16132 DENSITY 2 = 46714 HAI 65399 DENSITY 3 = 68935 IA2 13374 DENSITY 4 = 4354 JA2 26198 KA1 18971 TOTAL 120003 LA2 19673 MA2 7946 LANGFORD CREEE., MD. NA2 236690 VIMS MAP 026 OA2 13150 PA2 41358 AA2 23829 QA1 121448 BA3 1009 CAI 3052 TOTALAREA DA3 116525 EAl 2248 DENSITY 1 = 529959 FAl 8719 DENSITY 2 = 752425 GA3 47056 DENSITY 3 = 0 HAI 31841 DENSITY 4 = 47524 IA2 2545 JA4 14261 TOTAL 1329908 KA2 2931 LA3 89791 QUEENSTOWN, MD. MAI 13168 VIMS MAP # 033 NA2 2799 OA2 7562 AA2 28594 PAl 10637 BA2 290558 QA1 44485 CAI 52783 RA3 55435 DAl 35301 40 EA2 127648 201 FA2 6421 1134 49705 GA2 9551 JB2 54935 HA2 5770 KB4 44352 LB3 157204 TOTALAREA CA3 4392 DA3 8879 DENSITY 1 = 88084 EA2 25800 DENSITY 2 = 468542 DENSITY 3 = 0 TOTALAREA DENSITY 4 = 0 DENSITY 1 = 176193 TOTAL 556626 DENSITY 2 = 1373917 DENSITY 3 = 578726 ALEXANDRIA, VA.-D.C.-MD. DENSITY 4 = 1866548 VIMS MAP 034 TOTAL 3995384 AA3 51534 BA3 4720 CLAIBORNE, MD. FA2 1192028 VIMS MAP 036 GA4 128434 HA2 5785 AA3 447400 IA2 18455 BAl 50674 JA2 4437 CA3 319089 KA4 11462 DA2 5938 LA3 34200 EA2 169332 MA2 3603 FA3 10967 NA3 10042 GA2 17267 OA2 21854 HA2 122958 PA2 5745 IA3 111437 QA2 9209 JA1 77686 RA3 16163 KA2 4287 SAl 176193 LA2 20766 TA3 99115 MA2 32654 UA4 30293 VA2 3530 TOTALAREA WA2 5823 XA3 24024 DENSITY 1 = 128360 YA2 17006 DENSITY 2 = 373202 ZA4 25925 DENSITY 3 = 888893 AB4 32812 DENSITY 4 = 0 BB4 976595 C134 36462 TOTAL 1390455 DB4 4200 EB4 5194 ST. MICHAELS, MD. F132 5707 VIMS MAP # 037 GB3 168453 HB4 521114 AA2 77957 202 BA2 31281 HA4 197157 CA2 78893 IA2 94995 DA2 163662 JA4 148010 EAl 121941 KA2 33969 FA2 153007 LA4 48170 MA4 3051 TOTALAREA NA4 40056 OA2 15310 DENSITY 1 = 121941 PA2 5982 DENSITY 2 = 504800 QA3 4267 DENSITY 3 = 0 RA2 23086 DENSITY 4 = 0 SA2 8540 TA4 21227 TOTAL 626741 UA4 17924 VA3 73647 FORT BELVOIR, VA.-MD. WA2 441880 VIMS MAP 039 XA4 16457 YA2 181493 AA4 19355 ZA4 79038 BA4 98146 AA4 334251 CAl 53343 BA4 1593704 DA3 163198 EA2 64021 TOTALAREA FAl 416321 GA3 115505 DENSITY 1 = 50991 HA4 52906 DENSITY 2 = 805255 IA4 3825 DENSITY 3 = 186768 JA4 60684 DENSITY 4 = 2539527 KA4 3274 TOTAL 3582541 TOTALAREA TILGHMAN, MD. DENSITY 1 = 469664 VIMS MAP # 043 DENSITY 2 = 64021 DENSITY 3 = 278703 AA3 35901 DENSITY 4 = 238190 BA3 23423 CA3 7224 TOTAL 1050578 DA3 32058 EA3 4129 MT. VERNON, VA.-MD. FA3 7832 VIMS MAP # 040 GA3 7560 CAl 50991 TOTALAREA DA4 40482 EA3 23202 DENSITY 1 = 0 FA3 77700 DENSITY 2 = 0 GA3 7952 DENSITY 3 = 118127 203 DENSITY 4 0 INDIAN HEAD, MD.-VA. VIMS MAP 048 TOTAL 118127 AA3 123864 OXFORD,MD. BA4 1770423 VIMS MAP # 044 CAl 27497 DA3 70063 AA3 14770 EA3 56469 BA2 26432 FA4 35935 CA3 61295 GA4 295472 DA2 13725 HA4 18693 EA3 48211 IA4 63837 FA3 15891 JA2 208580 GA3 12382 KA4 90992 LA3 67228 TOTALAREA MA4 207648 DENSITY 1 = 0 TOTALAREA DENSITY 2 = 40157 DENSITY 3 = 152549 DENSITY 1 = 27497 DENSITY 4 = 0 DENSITY 2 = 208580 DENSITY 3 = 317624 TOTAL 192706 DENSITY 4 = 2483000 QUANTICO, VA.-MD. TOTAL 3036701 VIMS MAP 047 HUDSON,MD. AA4 1136371 VIMS MAP 051 BA4 811966 CA4 101746 AA2 58603 DA4 139665 BA3 5094 EA4 496555 CA3 44080 FA4 1158295 DA4 13488 GA4 2582673 EA3 24492 HA4 332762 FA3 4152 IA4 180070 GA3 223870 HA3 5513 TOTALAREA IA3 37324 JA3 6591 DENSITY 1 = 0 FCA3 45497 DENSITY 2 = 0 LA3 6298 DENSITY 3 = 0 MA3 23699 DENSITY 4 = 6940103 NA2 210110 OA3 69393 TOTAL 6940103 PA3 189637 204 TOTALAREA NANJEMOY, MD. VIMS MAP 056 DENSITY 1 = 0 DENSITY 2 = 268713 AA4 407300 DENSITY 3 = 685640 BA4 29057 DENSITY 4 = 13488 CA4 15337 DA4 4908 TOTAL 967841 EA4 14348 FA4 25938 CHURCH CREEK, MD. GA4 7693 VIMS MAP # 052 HA3 20311 IA4 51781 AA3 57766 KA4 11600 BA3 6790 LA4 5920 MA3 23847 TOTALAREA NA2 2963 JA4 37866 DENSITY 1 = 0 OA4 30959 DENSITY 2 = 0 PA3 19469 DENSITY 3 = 64556 QA2 43861 DENSITY 4 = 0 RA4 22276 SA2 48025 TOTAL 64556 TA3 118790 IJA4 277163 WIDEWATER, VA.-MD. VA3 47894 VIMS MAP 055 TOTALAREA AA3 536737 BA3 181255 DENSITY 1 = 0 CA3 50042 DENSITY 2 = 94849 DAl 956228 DENSITY 3 = 230311 EA2 71767 DENSITY 4 = 942146 FA4 666861 GA2 451771 TOTAL 1267306 HA4 2609258 IA4 428393 MATHIAS POINT, MD.-VA_ JA4 141004 VIMS MAP 057 KA4 52082 AA2 301261 TOTALAREA B A22 69546 CA3 315248 DENSITY 1:z 956228 DA2 51063 DENSITY 2 523538' EA3 21329 DENSITY 3 768034 FA4 92416 DENSITY 4 3897598 GA2 151424 HA4 149256 TOTAL 6145398 IA2 10036 205 dL JA4 39952 DENSITY 4 0 KA4 63514 LA3 27283 TOTAL 48644 MA4 112283 NA2 152610 TAYLORS ISLAND, MD. OA3 641704 VIMS MAP 062 PA2 194200 QA2 44768 AA2 61414 RA4 78312 BA2 6892 SA2 4098 CA2 5361 TA3 2367 DA2 13249 UA3 2678 EA2 7429 VA3 3508 FA2 9339 WA3 8838 GAl 23403 XA2 3985 HA2 103967 YA2 5025 IA3 2333 ZA2 10886 JA3 35131 AB2 7841 KA4 129510 13132 21828 LA4 27451 C133 32631 MA4 158647 DB2 4744 E134 36621 TOTALAREA F134 122831 G134 20933 DENSITY 1 = 23403 HB2 48536 DENSITY 2 = 207651 DENSITY 3 = 37464 TOTALAREA DENSITY 4 = 315608 DENSITY 1 = 0 TOTAL 584126 DENSITY 2 = 1081851 DENSITY 3 = 1055586 GOLDEN HILL, MD. DENSITY 4 = 716118 VIMS MAP # 063 TOTAL 2853555 AA3 2763 BA3 3553 POPES CREEK MD. CAl 12045 VIMS MAP # 058 DA3 4380 EA2 17787 AA2 27012 BA3 21632 TOTALAREA TOTALAREA DENSITY 1 = 12045 DENSITY 2 = 17787 DENSITY 1 = 0 DENSITY 3 = 10696 DENSITY 2 = 27012 DENSITY 4 = 0 DENSITY 3 = 21632 TOTAL 40528 go 206 KING GEORGE, VA.-MD. DA3 21199 VIMS MAP # 065 EAl 67161 FA2 11167 AA2 20934 GA2 41324 BA4 174638 HA3 199938 CA3 87626 IA3 7173 DA2 97671 EA4 149612 TOTALAREA TOTALAREA DENSITY 1 = 67161 DENSITY 2 = 52491 DENSITY 1 = 0 DENSITY 3 = 293860 DENSITY 2 = 118605 DENSITY 4 = 45345 DENSITY 3 = 87626 DENSITY 4 = 324250 TOTAL 458857 TOTAL 530481 BARRENISLAND,MD. VIMS MAP # 072 DAHLGREN, VA.-MD. VIMS MAP 066 AA3 27771 BA3 25205 AA3 7704 CA2 371630 BA2 8389 DA2 2573470 CA3 50685 DA3 6001 TOTALAREA EA3 2532 FAI 154857 DENSITY 1 = 0 GA2 196204 DENSITY 2 = 2945100 HA3 73718 DENSITY 3 = 52976 IA2 16459 DENSITY 4 = 0 TOTALAREA TOTAL 2998076 DENSITY 1 = 154857 HONGA, MD. DENSITY 2 = 221052 VIMS MAP 073 DENSITY 3 = 140640 DENSITY 4 = 0 AA3 206541 BA3 119036 TOTAL 516549 CA3 99155 DA2 88984 COLONIAL BEACH NORTH, EA4 132053 VA.-MD. FA2 112196 VIMS MAP # 067 GA3 26628 HA4 12743 AA4 45345 IA4 20375 BA3 47524 JA2 42078 CA3 18026 KA3 31139 AL 207 w LA3 114428 TOTALAREA MAl 126040 NA3 62732 DENSITY 1 = 1254681 OAl 70491 DENSITY 2 = 1922037 PA3 154865 DENSITY 3 = 3048038 QA2 98962 DENSITY 4 = 3835698 RAl 95791 SA3 107007 TOTAL 10060454 TA2 10128 UA4 1990961 WINGATE, MD. VA2 58544 VIMS MAP 074 NVA1 104183 XA3 21579 AA3 9901, YAl 539753 BA4 169660 ZA3 182974 CAl 135579 AB2 212960 DA3 15437 BB2 20857 EAl 119282 CB4 13823 FA4 1366392 DB2 40172 GA4 465748 EB3 100896 HA4 873437 FB3 164522 IA1 88156 GB2 87831 JA4 92888 HB3 121760 KA3 39685 1132 27156 LA3 311564 JB3 40805 MA4 176918 KB4 1184490 NA2 21711 L133 164185 OA2 4072 MB2 130883 PAl 12440 NB3 877963 QA3 98729 OB2 134308 PB3 5578 TOTALAREA Q132 232275 R132 70734 DENSITY 1 = 355457 S132 89300 DENSITY 2 = 25783 TB2 167598 DENSITY 3 = 475316 U134 481253 DENSITY 4 = 3145043 VB2 182564 W131 31848 TOTAL 4001599 X132 70054 Y133 103628 RICHLAND POINT, MD. ZB1 203687 VIMS MAP # 082 AC3 2493 BC1 82888 AA2 239605 CC3 340124 BA3 26471 DC2 44453 CA3 42211 208 TOTALAREA TOTALAREA DENSITY 1 = 0 DENSITY 1 = 231983 DENSITY 2 = 239605 DENSITY 2 = 1007091 DENSITY 3 = 68682 DENSITY 3 = 3832218 DENSITY 4 = 0 DENSITY 4 = 1932179 TOTAL 308287 TOTAL -- 7003471 BLOODWORTH ISLAND, DEAL ISLAND, MR MD. VIMS MAP 084 VIMS MAP 083 AA1 13575 AA3 6479 BA2 41335 BA3 6691 CA2 4811 CA2 155420 DA3 2483 DA4 200471 EA3 41988 EA2 369411 FA2 56133 FA4 17,172 GA3 73472 GA2 50481 14A3 47794 HA3 2611462 IA2 14016 IA1 23379 JA3 13939 JA4 262771 KA3 27950 KA3 200188 LAI 5753 LA3 767667 MA2 32552 MA3 73185 NA3 14945 NA3 93398 OAl 165476 TOTALAREA PA2 36068 QA4 199632 DENSITY 1 = 19328 RA4 236573 DENSITY 2 = 148847 SA2 198823 DENSITY 3 = 222571 TA4 250532 DENSITY 4 = 0 UA2 67696 VA3 34405 TOTAL 390746 WA3 11017 XA4 649111 MONIE, MD. YA2 129192 VIMS MAP # 085 ZA1 43128 AB4 101906 AA3 29970 BB4 13711 BA2 5975 CB3 9736 CA3 147625 DB3 18010 209 dlL qw TOTALAREA DENSITY 2 = 1175300 DENSITY 3 = 4110576 DENSITY 1 = 0 DENSITY 4 = 3055043 DENSITY 2 = 5975 DENSITY 3 = 177595 TOTAL 8764894 DENSITY 4 = 0 TERRAPIN SAND POINT, TOTAL 183570 MD. VIMS MAP 092 KEDGES STRAITS, MD. VIMS MAP 091 AAl 23709 BA4 1386039 AAl 49479 CAl 60304 BA2 339225 DA3 355071 CA4 74769 EAl 115165 EA4 52566 FA4 266096 FA3 183763 GA2 179822 GA2 224989 HA4 45127 HA3 2402244 IA3 93065 IA4 1445112 JA3 36349 JA4 106319 KA2 7318 KA2 225370 LA2 50762 TOTALAREA MA2 50578 NAl 50723 DENSITY 1 = 199178 OA4 361575 DENSITY 2 = 187140 PA2 8900 DENSITY 3 = 484485 QA2 13809 DENSITY 4 = 1697262 RA2 8911 DAl 166344 TOTAL 2568065 SA3 287813 TA4 585697 MARION, MD. UA2 89667 VIMS MAP 093 VA3 309027 WA2 12814 AA.3 6012 XA3 185280 BA3 28652 YA2 33913 CA2 38598 ZA3 742449 DA3 33111 AB1 157429 EA2 5363 BB4 369702 FA3 41593 CB2 49595 GA4 52998 DB4 59303 HAl 21247 EB2 66767 IA3 10176 JA4 29961 TOTAL AREA KA4 20499 LA2 34289 DENSITY 1 423975 MA3 17202 210 NA4 160218 EWELL, MD.-VA. OA2 109443 VIMS MAP 099 PA4 202917 QA2 30834 AA4 216569 RA3 5178 BAl 157313 SA3 3603 CA4 65071 TA2 18337 DA4 15493 UA3 5557 EA2 410431 VA2 15303 FAl 458151 WA3 15762 GA3 227099 XA1 14187 HA2 64906 YA4 16526 IA2 140970 ZAI 20239 JA2 198960 AB3 8893 KA1 189794 B134 12800 LA2 109019 CB3 7611 MA2 47674 DB4 17979 NA2 58865 EB4 8010 OA3 214557 FB3 11008 PA2 57451 GB3 25230 QA4 1661754 H131 42789 RA2 34775 IB3 241322 SA2 28867 JB3 50975 TA2 143100 KB3 24922 UA2 2724058 LB3 44426 VA2 51633 MB4 11501 WAl 76581 N133 184102 XA1 174750 OB3 58069 YA3 648720 PB3 56306 qZA.l 1080559 QB3 6324 DB2 1479620 RB3 39567 AB3 2481119 S133 64023 B131 226993 TB1 25215 CB3 613683 UB2 5035 EB1 2910050 VB2 3178 FB4 4926580 W132 13283 GB4 1314807 XB4 1813 HB2 1255436 TOTALAREA TOTALAREA DENSITY 1 = 123677 DENSITY 1 = 5274191 DENSITY 2 = 273663 DENSITY 2 = 6805765 DENSITY 3 = 989624 DENSITY 3 = 4185178 DENSITY 4 = 535222 DENSITY 4 = 8200274 TOTAL 1922186 TOTAL 24465408 211 GREAT FOX ISLAND, MD.-VA. CRISFIELD, MD.-VA. VIMS MAP loo VIMS MAP 101 AA2 115213 AA4 887960 BA2 73110 BA2 78527 CA4 4180644 CAl 18526 DA4 11656 DA4 167882 EA2 1705095 EAl 15422 FAl 14504 FA4 100328 GA4 872292 GA2 24228 HA2 55529 HA2 9559 IAl 139266 IA2 6747 JA4 238870 JA1 94529 KA3 623479 KA2 100567 LA2 22095 LA2 6405 NA3 149111 MA3 7932 OA4 13135 NA2 23353 PAl 8103 OA2 24904 QAI 15384 PA2 32737 RAl 10188 QA2 39481 SA4 2510401 RA2 6101 TAl 31131 SA2 26095 UA2 101949 TA2 5046 VAl 109852 UA3 10959 WA2 23580 VA2 8036 XA2 5807 WA4 63870 YA2 56933 XA2 17961 ZA4 221364 YA2 12507 A132 126941 ZA4 41037 BB2 27414 A134 186812 CB4 175680 BB3 65732 MA4 90862 CB3 45591 DB4 1728544 DB3 20871 EB1 253022 EB3 24209 FB4 8620 FB3 59496 GB3 6653 TOTALAREA HB3 24007 DENSITY 1 = 581450 TOTALAREA DENSITY 2 = 2313666 DENSITY 3 = 772590 DENSITY 1 = 128477 DENSITY 4 = 10052068 DENSITY 2 = 422254 DENSITY 3 = 265450 TOTAL 13719774 DENSITY 4 = 1447889 TOTAL 2264070 212 SAXIS, VA.-MD. EA2 102553 VIMS MAP # 102 FA4 410660 GA2 339129 AA2 1300 HA4 124136 BA3 6472 IA1 29911 LA1 30037 TOTALAREA JA4 3862602 DENSITY 1 = 0 KA21 657834 DENSITY 2 = TOTALAREA DENSITY 3 = 6472 DENSITY 4 = 0 DENSITY 1 = 59948 DENSITY 2 = 1142073 TOTAL 7772 DENSITY 3 = 982384 DENSITY 4 = 5334600 REEDVILLE, VA. VIMS MAP 106 TOTAL 7519005 AA2 1123 CHESCONESSEX, VA. BA2 35915 VIMS MAP 108 CA2 78878 EAl 438014 AA2 70341 FA3 370001 BA2 45461 GA2 58675 CA4 150162 HA2 5707 DA2 8603 IA2 16812 EAl 9586 JA2 10575 FA4 17737 KA1 Im 255821 GA1 10321 lqr DA4 998309 HA2 1428 IA4 569039 JA2 250394 TOTALAREA KA2 45324 LA4 256870 DENSITY 1 = 693835 MA3 365204 DENSITY 2 = 207685 NA4 70877 DENSITY 3 = 370001 OA2 62757 DENSITY 4 = 998309 PA4 257370 QA2 41188 TOTAL 2269830 RA4 271319 SAl 13672 TANGIER ISLAND, VA. TA2 98398 VIMS MAP # 107 UA4 714719 VA2 106677 AA3 480540 WA2 191487 BA4 937202 XA2 516532 CA2 42557 YA4 381348 DA3 501844 AB1 153873 213 BB4 310357 SAl 11433 CB1 249493 TA3 577903 DB4 43120 UAl 22758 EB2 123171 VA2 57775 F134 725121 WA3 7916 GB4 47504 XA2 1747 HB2 52539 YA3 32066 1134 108733 ZA3 87834 J133 7911 AB2 21104 KB2 106517 BB2 12549 LB4 2017715 CB2 11733 MB1 142952 N132 160502 TOTALAREA OB1 146118 ZA4 583494 DENSITY 1 = 34191 P132 34618 DENSITY 2 = 387178 DENSITY 3 = 873428 TOTALAREA DENSITY 4 = 2103961 DENSITY 1 = 726015 TOTAL 3398758 DENSITY 2 = 1915937 DENSITY 3 = 373115 URBANNA, VA. DENSITY 4 = 6525485 VIMS MAP # 110 TOTAL 9540552 AA2 9793 BA3 7429 PARKSLEY, VA. CA2 56298 VIMS MAP 109 DA2 19862 EA2 32906 AA2 17602 FA2 22251 BA3 5427 GA2 10395 CA3 24721 DA2 15465 TOTALAREA EA3 9314 FA2 23312 DENSITY 1 = 0 GA3 893 DENSITY 2 = 151505 HA3 3725 DENSITY 3 = 7429 IA4 13687 DENSITY 4 = 0 JA3 1893 KA4 2090274 TOTAL 158934 LA2 186512 MA2 26342 IRVINGTON, VA. NA2 3719 VIMS MAP 111 OA3 27493 PA2 9318 AA2 1135 QA3 7892 BA2 4101 RA3 86351 CA2 16000 214 DA3 50293 JA3 35735 EA3 8994 KA4 36863 FA4 24209 LA3 41748 GA3 9762 MA3 49754 HA3 148272 NA3 9361 IA3 371189 OA3 2085 JA3 766624 PA4 8067 Y%A3 19848 QA3 827518 LA4 89548 RA3 13090 MA3 98390 SA3 36717 NA3 190429 TA3 3085 OA3 1795 TJA3 5644 PA4 60555 VA3 2666 QA3 13736 WA2 10248 RA3 1946 XA4 14887 SA3 147744 YA3 128794 TA3 10287 ZA3 290146 UA3 2456 AB1 9141 VA3 9908 B133 125839 WA4 86648 C132 120632 XA3 43341 DB3 51512 YA3 16185 R132 112900 ZA3 8012 F132 1279 A133 10373 B133 2805 TOTALAREA TOTALAREA DENSITY 1 = 277447 DENSITY 2 = 1234076 DENSITY 1 = 0 DENSITY 3 = 2121513 DENSITY 2 = 21236 DENSITY 4 = 186407 DENSITY 3 = 1932389 DENSITY 4 = 260960 TOTAL 3819443 TOTAL 2214585 NANDUA CREEK VA. VIMS MAP 113 FLEETS BAY, VA. VIMS MAP 112 AA2 99258 BA3 10723 AA2 5027 CA4 64961 BA2 643646 DA2 2676 CA4 104979 EA3 34307 DAl 40525 FA4 499193 EA4 21611 GA2 913803 FA3 285867 HA4 199368 GAl 227781 IA4 101979 HA3 211952 JA2 67427 IA2 340344 KA3 129335 215 LA3 304061 FB3 118935 MAl 1120435 GB4 79307 NA4 111209 H134 56561 JB2 491223 TOTALAREA LB4 55593 KB4 123010 DENSITY 1 = 1120435 IB2 211762 DENSITY 2 = 1083164 DENSITY 3 = 478426 TOTALAREA DENSITY 4 = 976710 DENSITY 1 = 781880 TOTAL 3658735 DENSITY 2 = 3134559 DENSITY 3 = 271809 PUNGOTEAGUE, VA. DENSITY 4 = 4058801 VIMS MAP 114 TOTAL 8247049 AA4 145608 BA2 47752 SALUDA, VA. CAl 33974 VIMS MAP # 116 DAl 23882 EA4 118864 AA2 19731 FA3 7836 GA2 46282 TOTALAREA HA4 250365 IAl 45311 DENSITY 1 = 0 JA4 24379 DENSITY 2 = 19731 KA1 116331 DENSITY 3 = 0 LA4 2395272 DENSITY 4 = 0 MAl 261814 NA2 2017470 TOTAL 19731 OA4 129690 PA2 9198 WILTON, VA. QA3 4896 VIMS MAP 117 RA3 2208 SA4 249581 AA3 6372 TA4 203817 BA3 3489 UA3 33208 CA2 8014 VA3 38726 DA3 43165 WA2 114340 EA3 13085 XA3 66000 FA2 19443 YAl 77259 GA2 106326 ZA4 226754 HA2 9962 AB1 211720 IA4 164328 BB2 167949 JA2 3341 CB1 11589 KA2 60938 DB2 10105 LA2 8809 E132 18478 MA2 25423 216 NA2 7552 JAMESVILLE, VA. OA2 6445 VIMS MAP 119 TOTALAREA AA2 44977 BA2 3754 DENSITY 1 = 0 CA2 593019 DENSITY 2 = 256253 DA3 3283 DENSITY 3 = 66111 EAl 19711 DENSITY 4 = 164328 PA2 71327 GA4 620313 TOTAL 486692 HA2 48711 JA2 46438 DELTAVILLE, VA. KA2 11028 VIMS MAP 118 LA2 6425 MA4 15122 AA2 155781 NA4 1216 BA2 161210 OM 1014 CA3 61077 PA3 28014 DA3 13099 QA3 89778 EA2 56282 RA4 40404 FA4 7109 IAl 105825 GA2 27674 SA3 14642 HA2 32478 TA2 775982 IA3 26170 UA4 86180 JA2 103136 VAl 395924 KA1 9607 WA2 192177 LA2 17471 XA4 382181 MA2 2830 YA3 64006 NA2 12901 ZA3 31883 OA2 8528 AB2 3196 PA2 35406 B132 5848 QA3 17250 CB3 323056 RA2 1524 DB1 212951 SM 36834 EB4 166834 TA3 30632 FB1 90227 UA3 25142 G134 274933 VA2 62655 HB2 11079 1132 1973 TOTALAREA J134 148551 KB2 115952 DENSITY 1 = 9607 LB3 28727 DENSITY 2 = 677876 M133 21932 DENSITY 3 = 210204 DENSITY 4 = 7109 TOTAL AREA TOTAL 904796 DENSITY 1 = 824638 DENSITY 2 = 1931886 217 DENSITY 3 = 605321 KA4 222508 DENSITY 4 = 1736748 LA3 144132 MA2 119105 TOTAL 5098513 NA4 80569 OA3 21237 WARE NECK, VA. PA2 56556 VIMS MAP 122 QA3 15382 RA4 43164 AA2 35435 SA4 9581 BA2 391615 TA4 11569 CAl 107091 UA3 23860 DA2 39855 VA2 7312 EAl 52273 WA2 195012 FA4 418202 GA2 281929 TOTALAREA HA3 249939 IA3 161293 DENSITY 1 = 3723 JA1 22794 DENSITY 2 = 802174 KA3 67835 DENSITY 3 = 269513 LA4 163267 DENSITY 4 = 888353 MA4 673238 OA4 141231 TOTAL 1963763 PA1 51246 NA2 180787 FRANKTOWN, VA. VIMS MAP 124 TOTALAREA AA4 108405 DENSITY 1 = 233404 BA2 50498 DENSITY 2 = 929621 CA3 3544 DENSITY 3 = 479067 DA3 36431 DENSITY 4 = 1395938 EA3 110017 FA4 636161 TOTAL 3038030 IA4 17446 JA2 36018 MATHEWS, VA. KA4 43638 VIMS MAP 123 LA3 66994 MA4 74492 AA4 7859 NA2 18954 BA3 9371 OA2 7250 CA3 55531 PA3 2169 DA4 176327 WA3 86039 EAl 3723 XA1 65162 FA4 51978 YA2 12795 GA2 14239 ZA3 278972 HA2 236572 AB3 83849 IA4 284798 BB4 108149 JA2 173378 CB3 4484 218 DB4 3072 ACHILLES, VA. EB2 922 VIMS MAP 131 FB3 15668 GB2 74745 AA2 22439 HB2 161342 BA4 36129 1132 47683 CA4 73704 J132 38411 DAl 3643 KB2 38182 EA4 70060 LB2 5163 FA4 1157133 MB2 1551 GA2 132101 N133 9807 HA4 32301 OB2 17079 IA2 302984 PB2 79785 JA4 1141752 QB2 54342 KA1 104818 GAl 54384 LA2 6856 HA2 48038 MA2 16725 QA3 220956 NA4 61593 RA2 3712 OA4 395044 SA2 156585 PA2 423373 TA2 285233 QA4 344228 UA2 65472 RAl 14171 VA4 1533516 SA3 218925 RB2 83348 TA2 462693 XJA4 678722 TOTALAREA VAl 129257 WA3 36947 DENSITY 1 = 119546 XA3 146392 DENSITY 2 = 1287108 YA4 8800 DENSITY 3 = 918930 ZA2 4700 DENSITY 4 = 2524879 AB2 36371 BB4 234492 TOTAL 4850463 CB4 21685 DB2 44687 CLAY BANK VA. EB4 224454 VIMS MAP # 130 FB2 24365 GB4 1444949 AA1 13685 HB2 57397 BAl 1147 IB4 619483 JB2 120164 TOTALAREA KB4 16809 LB2 28374 DENSITY 1 = 14832 MB2 10752 DENSITY 2 = 0 NB4 45417 DENSITY 3 = 0 OB2 39753 DENSITY 4 = 0 P132 120207 QB4 581116 TOTAL 14832 RB1 275820 219 ilk wr TOTALAREA TOTALAREA DENSITY 1 = 527709 DENSITY 1 = 90745 DENSITY 2 = 1853941 DENSITY 2 = 4164200 DENSITY 3 = 402264 DENSITY 3 = 869281 DENSIT'V 4 = 7187871 DENSITY 4 = 8864294 TOTAL 9971785 TOTAL 13988520 NEW POINT COMFORT, VA. CAPE CHARLES, VA. VIMS MAP 132 VIMS MAP 133 AA2 71056 AA1 68552 BA2 373983 BA4 21579 CA2 242614 CA2 139505 DAl 90745 DA4 88097 EA3 464611 EA3 9858 FA4 3791223 FA4 434674 GA2 470194 GA2 128174 HA2 75508 HA2 94471 IA4 52071 IA3 142336 JA2 39819 JA3 53655 KA4 583127 KA3 65407 LA2 230882 LA4 11607 MA4 151733 MA3 84774 NA4 227048 NAl 1049628 OA2 261586 OA4 746432 PA3 276498 PA1 50937 QA4 435254 RA2 195723 TOTALAREA SA4 197934 TA2 779112 DENSITY I = 1169117 UA4 1006518 DENSITY 2 = 362150 VA2 249651 DENSITY 3 = 356030 WA4 1818 DENSITY 4 = 1302389 XA2 66305 YA2 58504 TOTAL 3189686 ZA2 676966 AB4 865203 CHERITON, VA. BB4 443653 VIMS MAP # 134 C133 102634 DB4 1108712 AA2 25537 EB2 321902 BAl 92220 FB3 25538 CA4 214862 GB2 50395 DA2 155521 EA3 3894 FA4 187850 220 GAl 27055 OAl 21253 PA2 471195 TOTALAREA QA3 519273 RAl 30419 DENSITY 1 = 119275 SM 301926 DENSITY 2 = 181058 TA2 975186 DENSITY 3 = 3894 UA4 445135 DENSITY 4 = 402712 VA4 728336 WA2 81059 TOTAL 706939 XA2 57520 YA4 21368 YORKTOWN, VA. ZA2 23503 VIMS MAP # 139 AB4 40016 BB1 56639 AA2 8205 C134 47509 BAl 2338 CA2 3569 TOTALAREA DA3 2693 DENSITY 1 = 190920 TOTALAREA DENSITY 2 = 2122800 DENSITY 3 = 844117 DENSITY 1 = 2338 DENSITY 4 = 2255508 DENSITY 2 = 11774 DENSITY 3 = 2693 TOTAL 5413345 DENSITY 4 = 0 POQUOSON EAST, VA. TOTAL 16805 VIMS MAP 141 POQUOSON WEST, VA. AA2 573463 VIMS MAP 140 BA4 5543807 CA4 420173 AM 8174 DA2 173641 BA4 18984 EA2 1149443 CA4 29896 FA4 855950 DAl 82609 GA3 1285263 EA3 7252 HA4 15715 FA4 72338 IM 27159 GA2 478960 JA4 11491 HA4 542857 KA4 5414 IA2 16648 LA2 1958 JA4 119488 MA4 11549 KA2 18729 LA3 15666 TOTALAREA MA4 36569 NA4 144838 DENSITY 1 = 0 DENSITY 2 = 1898505 221 DENSITY 3 = 1285263 JA3 199112 DENSITY 4 = 6891258 KA4 449925 LA4 54299 TOTAL 10075026 MA4 103679 NA2 565417 ELLIOTTS CREEK, VA. OA4 68881 VIMS MAP # 142 PA4 574188 QA4 20287 AA1 46167 RA4 28351 BA2 235829 SA4 169023 TA4 151120 TOTALAREA UA4 27328 DENSITY 1 = 46167 TOTALAREA DENSITY 2 = 235829 DENSITY 3 = 0 DENSITY 1 172425 DENSITY 4 0 DENSITY 2 578340 DENSITY 3 199112 TOTAL 281996 DEN51TY 4 2470107 TOWNSEND, VA. TOTAL 3419994 VIMS MAP # 143 CAPE HENRY, VA. AA2 11223 VIMS MAP # 152 BA2 3892 AA3 17115 TOTALAREA BA3 37196 CA4 3439 DENSITY 1 = 0 DA2 41738 DENSITY 2 = 15115 EAl 86219 DENSITY 3 = 0 FAl 15048 DENSITY 4 = 0 GAl 82588 TOTAL 15115 TOTALAREA HAMPTON, VA. DENSITY 1 = 183855 VIMS MAP 147 DENSITY 2 = 41738 DENSITY 3 = 54311 AA1 13951 DENSITY 4 = 3439 BA4 155606 CAl 47238 TOTAL 283343 DA4 153734 EA4 262743 PRINCESS ANNE, VA. FA4 150341 VIMS MAP # 157 GA4 100602 HA2 12923 AA2 2707 IAl 111246 BA2 4550 222 TOTALAREA CA2 145423 DA2 9785 DENSITY 1 = 0 EA4 8424 DENSITY 2 = 7257 FA3 4018 DENSITY 3 = 0 DENSITY 4 = 0 TOTALAREA TOTAL 7257 DENSITY 1 = 0 DENSITY 2 = 170472 DENSITY 3 = 19001 DENSITY 4 = 8424 PORT TOBACCO, MD. TOTAL 197897 VIMS MAP # 161 TINGLES ISLAND, MD. AA.4 118994 VIMS MAP 170 TOTALAREA AA3 685389 BA3 7264869 DENSITY I = 0 OA3 338924 DENSITY 2 = 0 DA3 73519 DENSITY 3 = 0 EA3 1102207 DENSITY 4 = 118994 FAl 29681 GA4 171239 TOTAL 118994 HA4 66268 IAl 15638 BERLIN, MD. JA4 49989 VIMS MAP # 167 KA1 26084 LA3 65559 AA4 24313 MA4 32014 CA3 13413 NA2 15027 BA3 25623 TOTALAREA TOTALAREA DENSITY 1 = 71403 DENSITY 1 = 0 DENSITY 2 = 15027 DENSITY 2 = 0 DENSITY 3 = 9530467 DENSITY 3 = 39036 DENSITY 4 = 319510 DENSITY 4 = 24313 TOTAL 9936407 TOTAL 63349 BOXIRON, MD.-VA. OCEAN CITY, MD. VIMS MAP # 172 VIMS MAP # 168 AA.2 901619 AA.2 15264 BA3 1584838 BA3 14983 CA3 66367 223 DA3 1276754 CHINCOTEAGUE EAST, VA. EAl 265474 VIMS MAP # 175 FA4 22245 GA3 236428 AA3 5771516 HA4 740234 BA2 215488 IA4 8887 JA4 21718 TOTALAREA KA3 105015 LA4 948056 DENSITY 1 = 0 MA3 183631 DENSITY 2 = 215488 DENSITY 3 = 5771516 TOTALAREA DENSITY 4 = 0 DENSITY 1 = 265474 TOTAL 5987004 DENSITY 2 = 901619 DENSITY 3 = 3453033 DENSITY 4 = 1741140 TOTAL 6361266 WHITTINGTON POINT, MD, VA. VIMS MAP 173 AA4 296475 BA4 22802 CA4 9929 DA4 28578 EA3 1717544 FA3 132264 GA3 173879 HA2 17139 TOTALAREA DENSITY 1 = 0 DENSITY 2 = 17139 DENSITY 3 = 2023687 DENSITY 4 = 357784 TOTAL 2398610 224 APPENDIX E 1990 Submerged Aquatic Vegetation Ground Truth Surveys. 0 0 0 0 .4 225 1 11 1@ I I 1 1 1990 SUBMERGED AQUATIC VEGETATION GROUND TRUTH SURVEYS QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 002 AM U Capt. 6/18-21 BA3 BA2 U Capt. 6/18-21 BA3 BA2 U cit. 9/24 EM Ms Harford 8/15 DA3 Ms Harford 8/15 CA3 U cit. 9/24 AM Ms Harford 8/15 FA3 Ms Harford 8/15 003 EAl AM Ms Harford 8/15 FAl BAl Ms,Va Harford 8/15 JA4 FAl Ms Harford 9/15 to OA2,PA1,CA2 HAl Ms,Hv,Va HPEL 7/4 OA2 HAl Ms,Hv,Va Harford 8/15 PAl HAl Ms Harford 8/15 MA4 IA2 Ms,Hv,Va,Cd,N,Hd Harford 8/15 LA4 JA2 . Hv,Ms,Va Harford 8/15 NA3 KA2 Ms,Va,Hv,Cd,Ppc Harford 8/15 TA3 LA2 Ms,Hv,Va Harford 8/15 UM MA2 Ms,Va,Hv,Cd,N Harford 8/15 VA4 NA2 Ms,Va,Hv,Cd,N Harford 8/15 WA4 OA2 MsVa,Hv,Cd,N Harford 8/15 XA4 PA2 Ms,Va,Hv,Cd,N Harford 8/15 YA3 QA4 Va,Ms,Hv Harford 8/15 ZA3 RA2 Va,Ms,Hv Harford 8/15 F134 SM Ms Harford 8/15 JB4 TA2 Ms Harford 8/15 KB4 UA2 Ms Harford 8/15 LB4 VA2 Ms Harford 8/15 MB3 WA2 Ms Harford 8/15 QB3 XA3 Ms Harford 8/15 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 003 RB3 YA3 Ms Harford 8/15 TB4 ZA2 Ms Harford 8/15 IB4 AB3 Ms,Hv,Cd Harford 8/15 DB4 BB3 Ms Harford 8/15 DB4 CB3 Ms Harford 8/15 DB4 DB3 Ms Harford 8/15 DB4 EB3 Ms Harford 8115 BB3 GB2 Ms,Hd,Cd Harford 8/15 SM IB3 Ms,Hv,Cd,VaN,Hd Harford 8/15 DA2 KB2 Ms,Cd Harford 8/15 AA2 NB2 Ms Harford 8/15 EB4 OB3 Ms Harford 8/15 BA2 Ms Harford 8/15 CAl Ms Harford 8/15 IM Ms Harford 8/15 GB3 Ms Harford 8115 HB3 Ms Harford 8/15 PB3 Ms Harford 8/15 SB2 Ms Harford 8/15 High Point Ms Cit. 7/21 004 AA2 GA2 Ms Harford 8/15 CA2 FA2 Ms Harford 8/15 GA2 EA2 Ms Harford 8/15 CAl U Capt. 6/18-21 EAl BAl Ms,Va Harford 8/15 DA2 AA1 Ms,Va Harford 8/15 FA2 Ms Harford 8/15 BA2 GA2 Ms Harford 8/15 HA2 DAl Ms Harford 8/15 '005 AA2 BA2 Ms Harford 8115 BA2 AA2 Ms Harford 8/15 t, I I I IL P @ P I P 4P 1 1 4 P a I P QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 009 EA2 GA2 Ms,Va,Hv,Cd Harford 8/15 DAI U Capt. 6/18-21 EA2 FA2 Ms, Va,Hv,Cd Harford 8/15 EM U Capt. 6/18-21 FA2 HAl U Capt. 6/18-21 CA2 CA2 Ms,Va Harford 8/15 CA2 BA2 Ms,Va Harford 8/15 AA2 AA2 Ms,Hv Harford 8/15 BA2 AA2 Ms,Hv,Va,Pcr Harford 8/15 010 IA2 LA2 MsVa,Ppe Harford 8/15 HA2 MAl Ms,Va Harford 8/15 HA2 NA4 Ms,Va Harford 8/15 FA2 FA2 N,Va,Ms Harford 8/15 N) EA2 EM Ms,Hv Harford 8/15 00 CA2 DA2 Va Harford 8/15 BA2 CA2 Ms,Va Harford 8/15 JAl GAl U Capt. 6/18-21 IA2 HA2 U Capt. 6/18-21 IA2 IM U Capt. 6/18-21 IA2 JAl U Capt. 6/18-21 IA2 KA1 U Capt. 6/18-21 AA2 U Capt. No Date AA2 BA2 Ms,Hd Harford 8/15 Veazy Cove U cit. 7/20 013 BAl U Capt. 6/18-21 CA2 U Capt. 6/18-21 EM U Capt. 6/18-21 EM Ms,Va,Rm,U Cit. 5/90 Seneca Cr. U Essex 7/7 Seneca Cr. U Essex 7/7 Seneca Cr. U Essex 7/7 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 013 Seneca Cr. # U Esse x 7/7 Seneca Cr. # U Essex 7/7 014 OM GA3 U\Ms,C,EcVa CaptAEssex 6/18-21\7/30-10/26 FA3 U Capt. 6/18-21 EM U\Ms'C CaptAEssex 6/18-21\7-24 DA4 U Capt. 6/18-21 AM CA2 U Capt. 6/18-21 EA2 SM U Capt. 6/18-21 DA2 RA2 U Capt. 6/18-21 CA2 QA2 U Capt. 6/18-21 OM U Capt. 6/18-21 TA3 NA3 U Capt. 6/18-21 FA3 MA3 U Capt. 6/18-21 HA3 LA3 U Capt. 6/18-21 HA3,IAl KA3 U Capt. 6/18-21 KA3 JA3 U Capt. 6/18-21 LA3,JA3 IA2 U\Ec,Cd,Ms CaptAEssex 6/18-21\7/30 Dundee Cr. # Ec,Ms,Va Essex 7/30 Dundee Cr. # Va,Ms,Ngu Essex 7/30 015 DAl U Capt. 6/18-21 AA2 BA3 U cit. 8/3 Worton Cr.# U cit. 7/20 Chum Cr. U cit. 8/31 016 AA2 BA2 U\Ms,Va Capt. Harford 6/18-21\8/15 AA2 U Capt. 6/18-21 Betterton Pier # Ms cit. 11/6 Sassafrass R. # Ms Harford 8/15 017 BAl BA2 MsVa,Hd Harford 8/15 AA2 AM Ms,Va,Hd Harford 8/15 1@ I " F I I k P 4 P q P QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 018 Stony Cr. # Rm Cit. 6/4 Stony Cr. # RM Cit. 6/4 Nabbs Cr. # Rm Cit. 6/4 019 Main Cr. # Zp,Ppc cit. 5/1,7/15 Back Cr. # Ppc cit. 5/1,7/15 020 BA2 AA2 U Capt. 6/27-30 AA2 BA3 U Capt. 6/27-30 DA2 DA4 U\U CaptACit. 6/27-30\7-8 021 AA2 HA2 U Capt. 6/27-30 GA2 U Capt. 6/27-30 DA3 CA3 Rm Capt. 6/27-30 to GA2 AA2 Rm Capt. 6/27-30 CA3 DA4 U Capt. 6/27-30 023 Forked Cr. # Zp cit. 6/30 Branch Cr. # Zp Cit. 5/10 Severn R. # Zp cit. 5/10 Herald Harbor # Zp cit. 5/10 Clements Cr. # Zp,U cit. 6/16 Luce Cr. # ZP cit. 6/16 Brewer Pond # Zp cit. 5/10 Maynedier Cr. # Zp cit. 5/10 Severn R. # Zp cit. 5/10 024 Burley Cr. # Zp FWS 6/5 Broad Cr. # ZP cit. 6/24 Inner Harbor # Rm cit. 8/2 Redhouse Cove # Ppe cit. 8/23 Deep Cr. # MS cit. 9/9 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 026 FA3 Rm Capt. 6/27-30 AA2 BA3 Rm Capt. 6/27-30 CA1 AM U Capt. 6/27-30 IA2 U Capt. 6/27-30 JA3 U Capt. 6/27-30 KA4 Rm Capt. 6/27-30 LA4 Rm Capt. 6/27-30 NA1 Rm Capt. 6/27-30 WA1 Rm Capt. 6/27-30 IA2 TA4 Rm Capt. 6/27-30 KA2 UA3 Rm Capt. 6/27-30 NA2 VA3 Rm Capt. 6/27-30 EAI PA2 Rm Capt. 6/27-30 SM Ec Capt. 6/27-30 DA3 MA3 U Capt. 6/27-30 MA1 BB1 Rm Capt. 6/27-30 LA3 CB2 Rm Capt. 6/27-30 RA3,QA1 YA3 Rm Capt. 6/27-30 PA1 XA2 Rm Capt. 6/27-30 HA1 QA1 Ppf cit. 7/22 OA2 Zp Cit. 6/9 LA3 CB2 Ms,PpfEc Cit. 7/2 Piney Point# Rm,Ppf cit. 7/24 Piney Cove # Rm cit. 7/24 Cacaway Point # Rm cit. 8/3 Boxes Point # Ppf cit. 7/22 Blakeford Point # Zp,U Cit. 7/22 Spaniard Neck # Ms,PpfU Cit. 8/90 Lucy Cove # ZP cit. 6/9 Tilghman Cr. # Ec cit. No Date Gum Point # Rm cit. No Date Eastern Neck Narrows # Ec,ppfppc HPEL V10 db I I t P I F 1 0 0 qP QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 029 Anacostia R. # Hv COG No Date 030 Selby Bay # Zp FWS 6/5 Almshouse Cr. # Zp cit. 6/13 Beards Cr. # Rm cit. 6/3,9/9 031 Lake Ogleton # Zp cit. 7/2 Lake Ogleton # Zp cit. 7/2 Lake Ogleton # Zp cit. 7/2 Lake Ogleton # Zp cit. 7/2 Lake Ogleton # Zp cit. 7/2 Black Walnut Cr. # ZP,U cit. 7/2 Black Walnut Cr. # ZP,U cit. 7/2 Black Walnut Cr. # ZP,U cit. 7/2 to Black Walnut Cr. # ZP,U cit. 7/2 ND Black Walnut Cr. # ZP,U cit. 7/2 Black Walnut Cr. # ZP,U cit. 7/2 Kitty Duvall Cr. # U cit. 6/90,7/90 Kitty Duvall Cr. # U cit. 6/90,7/90 032 IA2 Zp FWS 6/28 LA2 WA2 Zp\Rm FWS\Capt. 6/28\No Date NA2 YA2 Rm,Zp\Rm FWS\Capt. 6/28\No Date CA1 QA3 Rm,Ppc FWS 6/28 QA1 AB4 Rm FWS 6/28 QA1 BB1 Rm Capt. No Date KA1 VA2 Rm FWS 6/28 JA2 UA2 Rm,Zp FWS 6/28 FA2,EA4 TA2 Rm,Zp\Rm FWS\Capt. 6/28\No Date DA1 SM Rm,Ppc,Zp\Rm FWS\Capt. 6/28\No Date DA1 SM Rm HPEL 8/7 CA1 QA3 Rm Capt. No Date CA1 PA2 Rm Capt. No Date QUAD 1990 BED -1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 032 GA1 OA2 Rm Capt. No Date MA3 RM Capt. No Date LA3 Rm Capt. No Date KA3 Rm Capt. No Date GA3 Rm Capt. No Date AA2 BA1 Rm Capt. No Date AA2 AM RM Capt. No Date IA2 Rm Capt. No Date JA3 Rm Capt. No Date ZA1 Rm Capt. No Date Kirwan Cr. # PpfRm cit. 10/12 . Cox Cr. # Rm,Zp FWS 7/13 Crab Alley Neck # ZP FWS 6/28 Crab Alley Neck # Zp FWS 6/28 6/27-30 033 HA2 MA3 Rm Capt. GA2 NA3 U Capt. 6/27-30 OM Rm Capt. 6/27-30 FA2 KA2 Rm Capt. 6/27-30 EA2 HA2 Rm Capt. 6/27-30 BA2 DA2 Rm Capt. 6/27-30 BA2 CAI Rm\Rm CaptAHPEL 7/2-6\7/18 BA2 EM Rm Capt. 7/2-6 DAI GA4 Rm Capt. 7/2-6 CAI FA2 Rm\Rm CaptAFWS 7/2-6\8/2 EA2 HA2 RM FWS 8/2 AA2 AA2 Rm FWS 8/2 DA1 GA4 Rm,Ppc FWS 8/2 034 UA4 RA4 Hv,Va,Hd,MS\Hv,Ms,Va,Hd CRACOG 9/3\9/10-11 VA2 SA2 Hv,Va,Ms cit. 9/3 AM AA2 Hv,Ms,Nm COG 9/10-11 AM BA4 Hv COG 9/10-11 (1 41 41 a a a a t, P I p t p Ip 1 0 4 0 40 4 1 2UAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 034 BA3 CA2 Hv COG 9/10-11 EA2 DA4 Hv COG 9/10-11 FA3 Hv COG 9/10-11 FA2 GA4 Ms,Cd,Nm COG 9/10-11 FA2 HA2 Hv,Cd COG 9/10-11 GA4 IM Hv,Ms,Va COG 9/10-11 FA2 JA1 Hv,Cd COG 9/10-11 FA2 KA4 Hv,Cd COG 9/10-11 HA2 LA4 Hv COG 9/10-11 IA2 MA2 Hv COG 9/10-11 JA2 NA3 Hv,Ms COG 9/10-11 LA3,MA2 PA2 Ms,Nm,Va,Hv COG 9/10-11 TA3 QA2 Hv COG 9/10-11 XA3 TA4 Va COG 9/10-11 t'D ZA4 VA4 Ms,Hv COG 9/10-11 AB4 WA4 Hv COG 9/10 EB4 ZA4 Hv, Ms COG 9/10-11 BB4 AB4 Hv COG 9/10-11 IB4 CB4 Hv,Ms,Cd COG 9/10-11 GB3,HB4 DB2 Hv COG 9/10-11 HB4 EB4 Hv COG 9/10-11 LB3,KB4 GB4 Ms,Va,Hv COG 9/10-11 LB3 HB2 Hv,Ms COG 9/10-11 NA3 Ms,Hv COG 9/10-11 OA2 Ms COG 9/10-11 PA2 Hv COG 9/10-11 QA2 Hv COG 9J10-11 RA3 Hv COG 9/10-11 SAl Ms COG 9/10-11 WA2 Ms COG 9/10-11 Yacht Basin # Va COG 9/10-11 Yacht Basin # Hv COG 9/10-11 Yacht Basin # Hv,Va COG 9/10-11 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** .1990 SURVEY DATE -034 Sheperds Landing # Hv,Ms COG 9/10-11 Interchange # Hv,Ms COG 9/10-11 Indian Queen Bluff # Hv COG 9/10-11 Indian Queen Bluff # Hv,Ms COG 9/10-11 Indian Queen Bluff # Hv,Ms COG 9/10-11 Indian Queen Bluff # Hv COG 9/10-11 Indian Queen Bluff # HvMs COG 9110-11 Anacostia R. # Hv,Va,Ms cit. 9/3 Hog Island # Hv,Va,Nm COG 9/10-11 Hog Island # Hv COG 9/10-11 Hog Island # Hv COG 9/10-11 Hog Island # Hv COG 9/10-11 Potomac R. # Hv COG 9/10-11 Potomac R. # Hv COG 9/10-11 Potomac R. # Hv COG 9/10-11 035 South Cr. # Rm cit. 6/21 South Cr. # Rm cit. 6/21 South Cr. # Rm cit. 6/21 036 B133 Rm Capt. 7/10-24 YA3 Rm Capt. 7/10-24 DA2 TB2 Rm Capt. 7/2-6 RB3 Rm Capt. 7/2-6 S133 Rm Capt. 7/2-6 EM Rm Capt. 7/2-6 FA4 Rm Capt. 7/2-6 GA2 Rm Capt. 7/2-6 IA3,JA1 CC1 Rm Capt. 7/2-6 BA1,CA3 YB2 Rm Capt. 7/2-6 CA3 XB4 Rm Capt. V2-6 FB2 Rm Capt. 7/2-6 AM DB2 Rm Capt. 7/2-6 ( 0 41 db a 0 q\ P t I I) I P 1 0 it 4 0 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 037 GA2 WB2 Rm Capt. 7/2-6 Miles R. # Rm cit. 8/9 038 Glebe Cr. # RM Cit. 7/5,9/4 Glebe Cr. # Rm cit. 7/5,9/4 Goldborough Cr. # Rm cit. 7/5,9/4 Goldborougb Cr. # Rm cit. 7/5,9/4 039 DA3 CA4 Va,Hv,Ms COG 9-4 DA3 DA3 Va,Hv,Ms,Cd,Nm COG 9-4 EA2 EA3 Va,Hv,Ms COG 9-4 EA2 FA1 Hv,Ms.,Va COG 9-4 IA4,HA4 IA4 Va,Ms,Hv,Nm,Ngr,Hd COG 9-4 GA3 JA3 Hv,Cd,Nm COG 9-4 CA1 Va,Hv,Ms COG 9-4 co Hv,Ms,Va COG 9-4 EA2 Hv,Ms,Nm COG 9-4 Sycamore Pt. Sycamore Pt. Hv,Ms,Nm COG 9-4 Hallowing Pt. Va,Ms,Hv COG 9-4 Gunston Cove Hv COG 9-4 Pohick Bay Cd,Hv COG 9-4 Pohick Bay # Cd,Hv COG 9-4 Accotink Bay # Hv COG 9-4 040 AA4 AA3 Hv,Va COG 9/13-14 BA4 BA4 Hv,Ms,Va,Hd,Ngu COG 9/13-14 BA4 BA4 Hv,Ms,Ngr,Cd,N,Nm cit. 7/19 BA4 CA2 Hv,Va cit. 7/19 CA1 DA3 Hv,Ms\Hv,Ms COG\Cit. 9/13-14\7/19 DA4 EA4 Hv\Hv,Ms,Ngr COG\Cit. 9/13-14\7/30 EA3 FA4 Hv\Hv COG\Cit. 9/13-14\7/19 JA4 HA4 Hv\Hv,Ngr,Cd COG\Cit. 9/13-14\7/19 KA2 IA2 HvVa,Ms,Hd COG 9/13-14 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 040 KA2 IA2. Hv,Ms,Va,Hd,Nm cit. 7/19 LA4 JA4 Hv\Hv COG\Cit. 9/13-14\7/19 NA4 KA4 Hv\Hv,Cd,N COG\Cit. 9/13-14\7/19 OA2 LA2 Va,Ms,Hv\Va,Ms,Hv COG\Cit. 9/13-14\7/19 MA4,NA4 Hv Cit. 7/19 SA2 OA2 Hv COG 9/13-14 VA3 PA4 Hv COG 9/13-14 QA4 Ms cit. 10/1 WA2 TA2 Ms Cit. 8/16,4/9 YA2 UA2 Ms cit. 8/16,4/9 ZA4 VA4 Cd,Nm,Hv,Ms COG 9/13-14 ZA4 WA2 Va,Ms,Hv,Cd COG 9/13-14 FA3 Hv,Ms . cit. 7/19 MA4 Hv COG 9/13-14 PA2 Hv\Hv COG\Cit. 9/13-14\7/19 QA3 Hv,Ms,Cd COG 9/13-14 XA4 Hv COG 9/13-14 Mockley Point # Hv,Ms COG 9/13-14 Mockley Point # Hv cit. 7/19 Piscataway Park # Hv Cit. 7/19 Piscataway Park # Hv COG\Cit. 9/13-14\7/30 Potomac R. # Va,Ms,Hv cit. 7/19 Swan Tantallon # Hv,Ms COG 9/13-14 Swan Tantallon # Hv COG 9/13-14 Swan Tantallon # Hv COG 9/13-14 Riverview # Hv COG 9/13-14 Riverview # Hv COG 9/13-14 Hulks # Hv,Ms\Hv COG\Cit. 9/13-14\7/19 Spoil areas # Hv,Ms COG 9/13-14 Harmon -Hall # Hv,Ms COG 9/13-14 Henson Cr. Park # Hv COG 9/13-14 Henson Cr. Park # Hv,Ms\Hv COG\Cit. 7/19 Potomac R. # Hv COG 9/13-14 ( I d I a 0 0 0 0 QUAD 1990 BED 1989 BED SPECIES" SOURCE' 1990 SURVEY DATE 040 Potomac R. # Hv COG 9/13-14 Potomac R. # Hv,Ms COG 9/13-14 Potomac R. # Hv COG 9/13-14 Potomac R. # Hv COG 9/13-14 Potomac R. # Hv COG 9/13-14 Mount Vernon # Hv COG 9/13-14 Potomac R. # Hv,Ms COG 9/13-14 Potomac R. # Hv,Ms COG 9/13-14 Potomac R. # Ms COG 9/13-14 041 Mattaponi Cr. # Cd,Pcr,Ngr Park 8/17 Lyons Cr. # Cd Park 8/17 Hall Cr. # Ngu,Cd,Pcr,Va Park 8/17 Patuxent R. # Zp Park 8/17 Black Swamp Cr. # Per,Ec,Cd Park 8/17 Cocktown Cr. # Ec,Cd,Pcr Park 8/17 043 QA3 Rm Capt. 7/2-6 FA3,EA3 RA2 Rm Capt. 7/2-6 SA3 Rm Capt. 7/2-6 KA2 Rm Capt. 7/10-24 AA3 AA2 Rm Capt. 7/10-24 BA2 Rm Capt. 7/10-24 IA2 Rm Capt. 7/10-24 Upper Bar Neck Zp HPEL 6/20 044 JA3 Rm cit. 6/7 Boone Cr. Ppe cit. 6/2 Tar Cr. Zp cit. 6/7 Tred Avon R. Zp cit. 6/7 047 BA4 JA4 Cd,Hv,Va,Ms cit. 7/9 EA4 AA4 Hv,Va,Ms,Hd COG 9/5-6,9/14 QUAD 1990,BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE -047 EM CA4 Hv,Va,Ms,Hd,Nm COG 915-6,9/14 EA4 FA2 Hv,Va COG 9/5-6,9/14 EM GAl Hv,Va COG 9/5-6,9/14 AM HA4 Hv,Ms,HdCd,Ngu COG 9/5-6,9/14 BA4 IA2 Ms,Hv,Va,Hd COG 9/5-6,9/14 BA4 JA4 Hv,Ms,Va,Cd,Ngu,Hd COG 9/5-6,9/14 CA4 KA4 Hv,Ms COG 9/5-6,9/14 CA4 LA2 Hv,Va,Ms COG 9/5-6,9/14 FA4 NA4 Hv COG 9/5-6,9/14 FA4 OA2 Hv,Ms COG 9/5-6,9/14 FA4 RA2 Hv COG 9/5-6,9/14 FA4 SM Hv,Va COG 9/5-6,9/14 FA4 TA4 Hv,Cd,Hd,Va COG 9/5-6,9/14 to DA4 UA4 Hv,Ms,Va,Hd,Cd COG 9/5-6,9/14 co DA4 VAl Hv,Ms,Va,Cd,Hd COG 9/5-6,9/14 CD GA4 WA4 Hv,Cd,Hd,Ms COG 9/5-6,9/14 GA4 XAl Hv,Ms,Hd,Va COG 9/5-6,9/14 GA4 YA4 Hv,Ms,Hd,Va COG 9/5-6,9/14 GA4 ZA2 Hv,Va,Cd,Hd COG 9/5-6,9/14 HA4 AB4 Hv COG 9/5-6,9/14 HA4 BB2 Hv COG 9/5-6,9/14 IM Hv,Nm,Cd COG 9/5-6,9/14 Quantico # Hv COG 9/5-6,9/14 Shipping Pt. # Hv,Cd,Va,Hd COG 9/5-6,9/14 Quantico Cr. # Hv COG 9/5-6,9/14 Quantico Cr. # Hv,Ms COG 9/5-6,9/14 Quantico Cr. # Hv COG 9/5-6,9/14 Quantico Cr. # Hv,Va COG 9/5-6,9/14 Quantico Cr. # Hv COG 9/5-6,9/14 Quantico Cr. # Hv,Va COG 9/5-6,9/14 Neabsco # Ms,Hv COG 9/5-6,9/14 Neabsco # Hv,Ms,Hd COG 9/5-6,9/14 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 048 BA4 AA2 Hv,Va,Ms COG 9-5 BA4 BA4 Hv,Ms,Va COG 9-5 BA4 CA1 Va,Hd,Ms,Nm COG 9-5 BA4 DA4 Hv,Ms,Va,Cd,Nm COG 9-5 CA1,DA3 EA4 Hv,Hd,Ngu,Va COG 9-5 EA3 FA1 Ms,Hv,Va,Hd COG 9-5 EA3 GA3 Ms,Hv,Va,Hd COG 9-5 BA4 JA4 Hv,Ms,Va COG 9-5 KA4 Hv COG 9-5 HA4 LA3 Hv,Nm COG 9-5 MA3 Hv,Nm,Ms COG 9-5 IA4 MA3 Hv,Ms,Nm COG 9-5 GA4 NA4 Nm,Hv,Va,Ms,Cd,Hd COG 9-5 JA2 OA1 Hv,Ms,Cd COG 9-5 KA4 PA4 Hv,Ms,Hd,Va COG 9-5 LA3 QA3 Va,Ms,Hv,Hd COG 9-5 MA4 RA4 Hv,Va,Ms,Cd,Nm COG 9-5 MA4 SA2 Hv,Va,Hd COG 9-5 Mattawoman Cr. # Hv COG 9-5 Mattawoman Cr. # Hv,Ms,Nm COG 9-5 Mattawoman Cr. # Hv,Ms COG 9-5 Mattawoman Cr. # Hv,Ms,Va COG 9-5 Grinders Wharf # Hv,Nm COG 9-5 Grinders Wharf # Hv,Ms,Nm COG 9-5 Bullocks Neck # Hv COG 9-5 Marsh Island # Hv,Nm,Cd COG 9-5 Thorofare Island # Cd COG 9-5 Tidal Flat # Va COG 9-5 Mattingly Wharf # Va COG 9-5 Mason Neck # Hv,Ms COG 9-5 049 Holland Cliff # Zp Cit. 7/1 Patuxent R. # Ec Park 8/17 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** -1990 SURVEY DATE 049 Kennedy Run # Zp Park 8/17 051 MA3,KA3,JA3,IA3,HA3,GA3 FA3 Rm Capt. 7/2-6 NA2,OA3 GA3 Rm Capt. 7/2-6 BA3 AM Rm Capt. 7/2-6 EM Rm Cit. 8/10 OM GA3 Zp HPEL 6/22 052 DA3 Rm Capt. 7/2-6 CA2 Rm Capt. 7/2-6 BA3 FA3 RM Capt. 7/2-6 AM EA4 Rm Capt. 7/2-6 BA3 Rm Capt. 7/2-6 055 AM AA1 Ms,Nm,Cd COG 9/6,9/14 BA3 BA2 Hv,Nm,Ngu,Va,Ms,Hd COG 9/6,9/14 CA3 CA4 Hv,Ms,Cd,Va COG 9/6,9/14 DA1 Ms COG 9/6,9/14 GA2 DA1 Ms COG 9/6,9/14 GA2,HA4 EA2 Ms COG 9/6,9/14 HA4 HA4 Hv,Ms,Ngu,Va,Hd,Cd COG 9/6,9/14 HA4 IM Hv,Ngu,Cd,Ms,Hd COG 9/6,9/14 KA4 JA4 Hv,Ms COG 9/6,9/14 JA4 KA4 Hv,Va,Ms,Hd COG 9/6,9/14 lAl Va,Hv COG W6,9/14 IM MA4 HvVa COG 9/6,9/14 FA4 NAl Ms,Va,Hv,Cd COG 9/6,9/14 FA4 OM Ms,Va,Hv COG 9/6,9/14 FA4 QA2 Va,Ms,Hv,Cd,Hd COG 9/6,9/14 EA2 RA2 Va,Ms COG 9/6,9/14 EA2 RA2 Cd COG 9/6,9/14 Aquia Cr. # HvMs COG 9/6,9/14 Aquia Cr. # Ms COG 9/6,9/14 t QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 055 Thomas Point # Ms COG 9/6,9/14 Thomas Point# Ms,Va COG 9/6,9/14 Sandy Point # Hv,Ms,Va,Hd,Cd COG 9/6,9/14 Sandy Point # Va,Hv COG 9/6,9/14 Smith Point # Va,Ms,Cd,Hd COG 9/6,9/14 Thomas Point # Va COG 9/6,9/14 M.C. Air Station # Hv,Hd,Va,Cd,Ngu COG 9/6,9/14 056 BA4 CA4 U Capt. 8/24 AM AM U Capt. 8/24 SA2,RA4,TA3,UA4,VA3 IA4 U Capt. 8/24 TA3 LA2 U Capt. 8/24 VA3 JA2 U Capt. 8/24 VA3 KA3 U Capt. 8/24 EA4,GA4,DA4 SM U Capt. 8/24 DA4,FA4 RA4 U Capt. 8/24 HA3 TA2 U Capt. 8/24 IM QA4 U Capt. 8/24 JA4 UA4 U Capt. 8/24 LA4 PA4 U Capt. 8/24 MA3 OA2 u Capt. 8/24 NA2 NA4 U Capt. 8/24 OA4,IA4 MA4 U Capt. 8/24 QA2,PA3 GA4 U Capt. 8/25 QA2 FAl U Capt. 8/25 QA2 EM U Capt. 8/25 CA4 DA4 U Capt. 8/25 AM BA3 U Capt. 8/25 057 DA2,CA3,BA2 VB4 Va,Ppf FWS 7/20 DA2 UB3 Va,PpfHv,Ec,Ppe FWS 7/20 EM TB4 Va,Ppc,Ms,Per FWS 7/20 GA2,FA4 RB4 Va,Ms,Pcr FWS 7/20 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 057 HA4 OB4 Va FWS 7/20 IA2 NB1 Va,Ppc FWS 7/20 MA4 JB4 Va,Pcr,Cd,Ms,Ppf FWS 7/20 MA4 JB4 Va,Ppc,Ppf VIMS 8/20 061 Cape Leonard # Zp cit. 4/90,6/90 Leonard Cr. # Zp cit. 4/90,6/90 062 LA4 AM Rm Capt. 6/30 KA4 BA2 Rm Capt. 6/30 HA2 CA4 Rm Capt. 6/30 063 DA3 BA4 Rm Capt. 9/10 DA3 CA2 Rm Capt. 9110 AM EA4 Rm Capt. 9/10 W CAl DA3 Rm Capt. 9/10 066 PA4 U Capt. 7/16 OM U Capt. 7/16 AM AM U Capt. 7/16 BA4 U Capt. 7/16 BA2 CA4 U Capt. 7/16 CA3 EAl U Capt. 7/16 CA3 FA3 U Capt. 7/16 EM IM U Capt. 7/16 GA2 KA2 U\Va CaptAVIMS 7/16\8/3 HA3 LA4 U Capt. 7/16 HA3 MA2 U Capt. 7/16 QA4 U Capt. 7/16 IA2 NA3 U Capt. 7/16 067 AM AM U Capt. 7/16 BA4 U Capt. 7/16 @, I @ I k 0 k 0 1 1j I 1 11) w w QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 067 DA4 U Capt. V16 BA3 EA2 U Capt. V16 BA3 FA4 U Capt. V16 CA3 GA4 U Capt. 7/16 DA3 IM U Capt. V16 JA1 U Capt. V16 HA3 LA2 U Capt. 7/16 HA3 MA3 U Capt. 7/16 HA3 NA2 U Capt. 7/16 HA3 OA4 U Capt. 7/16 IM PA3 U Capt. V16 068 Neale Sound # Zp cit. 6/29 t1o 069 Fox Point # Zp cit. 6/90 070 Cuckold Cr. # Zp cit. 6/25 Sam Abell Cove # Zp,Ppc cit. 5/15 Cuckold Cr. # Zp cit. 5/15 Cuckold Cr. # Zp cit. 5/15 071 AM Ec Capt. 9/18 Patuxent R. # Zp Cit. 6/3 Goose Cr. # Rm cit. 7/5 Goose Cr. # RM cit. 7/5 Pearson Cr. # Rm cit. 7/5 Patuxent R. # Zp cit. 5/15 Cuckold Cr. # Zp Cit. 5/15 Harpers Cr. # Rm cit. 9/10-11 N. Barrett Island # U Cit. 9/21 072 BA3 EA2 RM,U Capt. 8/24 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 072 CA2 GA4 Rm Capt. 8124 DA2 IM Rm Capt. 8/24 DA2 HA2 Rm Capt. 8/24 CA4 U Capt. 8/24 DA2 IM Rm cit. 10/20 073 KB4 QA2 Rm Capt. 8124 JB3 NA3 Rm Capt. 8/24 NB3 TA4 Rm,U Capt. 8/24 TB2 UA4 Rm Capt. 8/24 SB2 ZA3 Rm Capt. 8/24 NB3 VA3 Rm Capt. 8124 AM BAl Rm Capt. 8124 UB4,VB2 WA2 Rm,U Capt. 8/24 to LA3 XB2 Rm Capt. 9/51 MA1,LA3- WB4 Rm Capt. 9/5 NA3 VB2 Rm Capt. 9/5 PA3 UB4 Rm Capt. 9/5 QA2 TB2 Rm Capt. 9/5 UA4,VA2 RB4 Rm Capt. 9/5 YAl PB3 Rm Capt. 9/5 XA3 OB2 Rm Capt. 9/5 FB3 NB3 Rm Capt. 9/5 FB3,GB2 MB2 Rm Capt. 9/5 HB3 LB3 Rm,U Capt. 9/5 EB3 KB3 Rm Capt. 9/5 EB3 JB4 Rm,U Capt. 9/5 AB2,ZA3,YAl GB4 Rm,U Capt. 9/5 YAl HB2 Rm Capt. 9/5 ZB1 CB3 Rm Capt. 9/10 EB2 Rm Capt. 9/10 AC3 DB4 Rm Capt. 9/10 AM AA1 Rm Capt. 9/13 0 0 40 lb QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 073 EM LA4 Rm\Rm CaptAHPEL 9/13\6/29 GA3 KA3 Rm Capt. 9/13 HA4 JA3 Rm Capt. 9/13 IM IA2 Rm Capt. 9/13 GA2 Rm Capt. 9/13 KA3 HA3 Rm Capt. 9/13 DA2 FA3 Rm Capt. 9/13 CA3 EM Rm Capt. 9/13 BA3 DA3 Rm Capt. 9/13 AM BA1 Rm Capt. 9/13 AM CA4 Rm Capt. 9/13 OA1 Rm Capt. 9/13 074 LA4 Rm Capt. 9/7 KA2 Rm Capt. 9/7 BA4 CA4 Rm Capt. 9/7 CA1 DA2 Rm Capt. 9/7 FA4 EA2 Rm Capt. 9/7 FA4 FA4 Rm Capt. 9/7 FA4 GA2 Rm Capt. 9/7 FA4 HA2 Rm Capt. 9/7 FA4 IM Rm Capt. 9/7 GA4 JA3 Rm Capt. 9/7 HA4 MA3 Rm Capt. 9/7 IM NA4 Rm Capt. 9/7 MA4 QA4 Rm Capt. 9/7 LA3 PA2 Rm Capt. 9/7 LA3 OM Rm Capt. 9/7 Fallins Cove # Rm Capt. 9/7 079 Tall Timbers Cove # Zp cit. 6/90 082 CA2 RM Capt. 9/13 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 082 BA3 AA3 Rm Capt. 9/13 AA2 BA4 Rm Capt. 9/13 083 EA2,DA4 EM Rm Capt. 7/8 IA3 MA4 Rm Capt. 7/8 MA3 NA4 Rm Capt. 7/8 MA3,NA3,OAl OM Rm apt. 7/8 OM PA4 Rm Capt. 7/8 QA4 RA4 Rm Capt. 7/8 VA3 TA4 Rm Capt. 7/8 SA2,TA4,UA2 UM Rm Capt. 7/8 RA4 VA4 Rm Capt. 7/8 KA3 LA4 Rm Capt. 7/8 HA3 JA2 Rm Capt. 7/8 HA3,IA3 HA4 Rm Capt. 7/8 HA3 IA2 Rm Capt. 7/9 AB4 WA2 Rm Capt. 9/7 AB4 XA4 Rm Capt. 9/7 ZAl YA2 Rm Capt. 9/7 XA4,YA2 ZA4 Rm Capt. 9/7 Okahanikan Cove # Rm Capt. No Date 084 KA3 EM Rm cit. 10/15 HA3,JA3 FA3 Rm cit. 10/15 GA3 GA3 Rm Cit. 10/15 FA2 IAl Rm cit. 10/15 FA2 JA2 Rm cit. 10/15 KA3 Rm Cit. 10/15 EM LA2 Rm cit. 10/15 MA3 Rm cit. 10/15 AA1 OM Rm cit. 10/15 BA2 NA3 Rm cit. 10/15 LA1 DA3 Rm cit. 10/15 t I QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 085 CA3 AM Rm Capt. 9/10 BA2 CA3 Rm Capt. 9/10 AM DA4 Rm Capt. 9/10 091 KA2 IA2 Rm Capt. 6/27 JA4 HA3 Rm Capt. 6/27 IM GA4 Rm Capt. 6/27 EM AM Rm Capt. 7/11 DAl BA2 Rm Capt. 7/11 DA1,CA4 CA4 Rm Capt. 7/11 GA2 EA2 Rm Capt. 7/11 BA2,AA1,HA3 DA4 Rm,Zm,U Capt. 7/10 XA3 TA3 Rm Capt. 7/10 to SM Rm Capt. 7/10 14, 7/10 00 VA2,TA4 OA4 Rm Capt. QA2 MA3 Rm Capt. 7/10 RA2 IA4 Rm Capt. 7/10 LA2 JA4 Rm Capt. 7/10 OA4,NA1,MA2 KA4 Rm,U Capt. 7/10 SM NA4 Rm Capt. No Date 092 FA4,GA2 AM Rm Capt. 6/27 EM BAl Rm Capt. 6/27 BA4,DA3 CA4 Rm Capt. 6/27 HA4 FA4 Rm Capt. 6/27 IM DA4 Rm Capt. 9/10 JA3 EM Rm Capt. 9/10 BA4,DA3 CA4 Rm Cit. 9/1 BA4 CA4,BAl Rm,Zm vims 8/27 QA1 u Capt. 6/29 093 PA4 PA4 Rm Capt. 6/29 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 093 OA2 OA2 Rm Capt. 6/29 NA4 NA4 Rin,U Capt. 6/29 311 LA2 u Capt. 6129 F.A4 KA4 u Capt. 6/29 KA4 JA2 Rm Capt. 6/29 JA4 HA3 ZM,U Capt. 6/29 IM GA3 Zp Capt. 6/29 HAl FA2 Rm Capt. 6/29 GA4 EM Rm,Zm Capt. 6/29 FA3 DA3 Zm Capt. 6/29 CA2 Rm Capt. 6/29 CA2,DA3 BA2 Rm Capt. 6/29 BA3,CA2 AA2 Rm,Zm Capt. 6/29 XB4 SA2 Rm Capt. 6/30 TA4 Rm Capt. 6/30 CB3 UA4 Rm Capt. 6/30 VA4 Rm Capt. 6130 BB4 WA4 Rm Capt. 6/30 VA2 XA3 Rm Capt. 6/30 XA1 YA2 Rm Capt. 6/30 YA4 ZA4 Rm Capt. 6/30 AB3 AB2 Rm Capt. 6/30 EB4,DB4 BB4 Rm Capt. 6/30 FB3 CB2 Rm Capt. 6/30 GB3 DB4 Rm Capt. 6/30 HB1 EB1 Rm Capt. 6/30 IB3 FB3 Rm,U Capt. 6/30 LB3,MB4 KB4 Rm,Zm Capt. 6130 1KB3 IB4 Rm Capt. 6/30 JB3 HB3 Rm Capt. 6/30 IB3 GB4 Rm Capt. 6/30 OB3 MB2 Rm Capt. 9/22 NB3 NB3 Rm Capt. 9/22 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 093 OB2 Rm Capt. 9122 XB3 Rm Capt. 9/22 VB2 WB4 Rm Capt. 9/22 WB2 VB2 Rm Capt. 9/22 UB2 UB2 Rm Capt. 9/22 TB1,SB3 TB3 Rm Capt. 9/22 SB2 Rm Capt. 9/22 PB3 PB4 Rm Capt. 9/22 RB3 RB3 Rm Capt. 9/22 VA3 Rm Capt. No Date Annemessex R. # Rm Capt. No Date 099 BAl BA2 Rm,U Capt. 7/8 AM AM Rm Capt. 7/8 to CA4 CA4 Rm Capt. 7/8 CA DA4 DA2 Rm,U Capt. 7/8 QA4 PA4 Rm Capt. 7/8 FB4,SA2 SM Rm Capt. 7/8 UA2 RA2 Rm Capt. 7/8 UA2 QA3 Rm Capt. 7/8 TA2 OM Rm Capt. 7/8 SA2 NA3 Rm Capt. 7/8 MA2 HA2 Rm Capt. 7/8 FAl EA4 Rm Capt. 7/8 LA2,KAl IM Rm Capt. 7/8 IA2,GA3 JA2 Rm Capt. 7/8 IA2 LA3 Rm Capt. 7/8 JA2 MA2 Rm Capt. 7/8 IA2 WA2 Rm Capt. 7/8 100 DB4,EB1,FB4 SA2 Rm Capt. 7/11 DB4 TA4 Rm,Zm Capt. 7/11 EA2 BA2 Rm,Zm Capt. 7/11 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 100 BA2,CA4,EA2,FA1,GA4 AM Rm,Zm,U\Rm,Zm CapL\VIMS 7/11\8-12 AA2 AM Rm,Zm vims 8/12 IM CA1 Rm Capt. 7/11 DA4 Rm Capt. 7/11 JA4 EM Rm,Zm Capt. 7/11 LA2 FA4 Rm,U Capt. 7/11 KA3 GA4 Rm,Zm Capt. 7/11 NA3 JA4 Zm,Rm CaPL 7/11 IM Rm,Zm Capt. 7/11 MA4 HA4 Rm,Zm Capt. 7/11 CB4 RA4 Rm Capt. 7/11 BB2 QA1 Rm Capt. 7/11 BB2 UA4 Rm Capt. 7/11 ZA4 OM Rm Capt. 7/11 YA2 NA2 RM Capt 7/11 Capt. 7/11 YA2 MA2 Rm SA4,UA2,VA1,TA1 KA4 Rm,Zm,U Capt.. 7/11 SM MA2,KA4 Rm,Zm VIMS 8/27 Fox Islands Rm,Zm Capt. 7/11 101 ZA4,YA2 XA4 Rm Capt. 6/30 XA2,WA4 WA4 Rm,Zp Capt. 6/30 VA2 VA3 U Capt. 6/30 UA3 UA3 Rm,U Capt. 6/30 SA2 RA3 Rm Capt. 6/30 SA2 SM Rm Capt. 6/30 TA2 TA4 Rm Capt. 6/30 MA3 Rm,Zm Capt. 6/30 MA3 LA2 Rm Capt. 6/30 KA3 Rm Capt. 6/30 LA2 JA3 Rm Capt. 6/30 KA2 IM Rm Capt. 6/30 JA1 HA4 Zm Capt. 6/30 ti Is III QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 101 IA2,HA2 GA3 Zm Capt. 6/30 FA4,GA2 FAl Zm Capt. 6/30 FA4,GA2 EM Zm Capt. 6/30 OA2 NA3 Rm,Zm,Zp Capt. 6/30 QA2 PA2 Rm Capt. 6/30 RA2 QA2 Rm Capt. 6/30 PA2 OM Rm Capt. 6/30 AA4,BA2 AA4 Rm,Zm Capt. 6/30 AM BAl Zm Capt. 6/30 AM CA4 Zm Capt. 6/30 CA1,DA4 DA3 Rm,Zm Capt. 6/30 AB4 YA4 Rm,Zm cit. 7/9 A134 ZA3 Rm,Zm cit. 7/9 BB3 AB4 Rm,Zm Cit. 7/9 N) C133 BB4 Rm cit. 7/9 cn t-0 DB3 C133 Rm cit. 7/9 EB3 DB3 Rm cit. 7/9 F133 E133 Rm Cit. 7/9 G133 F134 Rm cit. 7/9 HB3 G133 Rm cit. 7/9 HB3 HB3 Rm cit. 7/9 EA1,GA2 EM Zm cit. 7/9 IA2 GA3 Zm cit. 7/9 GA2 FAl Zm cit. 7/9 Prong Cr. # Rm cit. 7/9 106 KA1 QA4 Rm cit. 8/30 DA4 FA2,GA4 Zm,Rm VIMS 7/24 107 BA4 BA4,CA2 Zm VIMS 8/26 JA4 KA4,LA4,IA2 Rm,Zm VIMS 8/26 108 ZA4 CB4,DB2 RmZm VIMS 8/13 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 110 BA3 AA2 Rm VIMS 7/3 JA3 FA2,GA3,HAl Rm VIMS 7/3 HA3 EA1,DA3 Rm,Zm VIMS 7/3 IM FB2,EB4,DB2 Rm VIMS 7/3 NA3 XA3,YA3 Rm VIMS 7/3 DA3 BA4 Rm,Zm VIMS 7/3 112 CB2 IB3 Rm cit. 6/20 BB3 FB3 Rm Cit. 6/20 EB2 NB3 Rm cit. 6/20 EB2 MB3 Rm cit. 6/20 DB3 KB3 Rm Cit. 6/20 JB3 Rm cit. 6/20 FB2 Rm cit. 6/20 IA2 HA2 Rm,Zm cit. -9/2 CA4 CA3 Rm cit. 9/2 QA3 TA3 Rm cit. 7/5,9/4 BA2 AA1 Rm,Zm cit. 7/5,9/4 BA2 BA2 Rm cit. 7/5,9/4 CA4 CA3 Rm,Zm cit. 7/5,9/4 GA1,HA3 FAI Rm cit. 7/5,9/4 IA2 HA2 Rm,Zm cit. 7/5,9/4 JA3 JA4 Rm cit. 7/5,9/4 KA4 Rm cit. 7/5,9/4 NA3 Rm cit. 7/5,9/4 KA4 OA4 Rm Cit. 7/5,9/4 YA3 CB3 Rm Cit. 7/5,9/4 ZA3 EB2 Rm cit. 7/5,9/4 XA4 BB4 Rm cit. 7/5,9/4 WA2 AB3 Rm Cit. 7/5,9/4 RA3 VA4 Rm cit. 7/5,9/4 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 112 RA3 UA2 Rm cit. 7/5,9/4 TA3 WA3 Rm,Zm cit. 8/15 PA4 SA2 Rm,Zm cit. 8/15 MA3 QA2 Rm,Zm cit. 8/15 LA3 PA3 Rm,Zm cit. 8/15 MA3 Rm,Zm cit. 8/15 IA2 IM Rm,Zm cit. 8/15 113 KA3 BA3 Rm VIMS No Date GA2 EA1,DA2 Rm VIMS No Date CA4 HA4 Rm VIMS No Date BA3 HA4 Rm VIMS No Date 114 EB2 CB3 Zp cit. 8/18 F133 DB3 Zp cit. 8/18 GB4 EB4 Zp,Zm cit. 8/18 HB4 FB4 Zp,Zm cit. 8/18 1132 GB1 Rm,Zm,Zp cit. 8/18 AM AA3,BA3 Zm,Rm VIMS No Date BA2 DA3 Rm,Zm VIMS No Date LA4 LA4,KAI,NA2 Rm,Zm VIMS No Date NA2 NA2,MA1 Rm,Zm VIMS 8/13 AB1 TA2,UA1,VA3 Rm,Zm VIMS No Date 117 AM Rm VIMS 6/29 IM HA4 RTn,Zp VIMS 7/3 GA2 FA3 Rm,Zm vims 6/29 118 GA2 FA3 Rm\Rm cit. WIMS 6/24\6/29 HA2 EM Rm\Rm CitAVIMS 6/24\6/29 IM GA3 Rm cit. 6/24 JA2 HA2 Rm cit. 6/24 JA2 IM Rm cit. 6/24 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 118 JA2 JA2 Rm cit. 6/24 BA2,CA2,DA3 BA3 Rm,Zm cit. 6/24 AA2 CA2 Rm,Zm cit. 6/24 AA2 DAl Rm\Rm CitAVlMS 6/24\6/29 CA3 BA3 Zm,Rm vims 6/29 122 BA2 KA2,JA3 zm vims 8/90 FA4 IA4,HA2 Zm,Rm vims 8/90 123 IM BA4 Zm cit. 7/27 LA3 FA2 Rm cit. 7/27 124 QA3 LA4 Rm,Zm vims No Date JA2 IM Rm vims No Date RA2 zm VIMS No Date CA CA SA2 PA3 Rm,Zm vims No Date TA2 MA2,NA2,PA3 Rm,Zm vims 6/5 UA2 OA2 Rm,Zm vims 6/5 VA4 PA3,QA2,RA4 Rm,Zm VIMS 6/4-5 125 Herring Cr. # Cd cit. 9/15 Herring Cr. # C cit. 9/15 Herring Cr. # Cd cit. 9/15 130 AM Zm vims No Date BAl Zm vims No Date 131 BB4 DB4 zm Cit. 6/17 JA4 KA4 Zm,Rm VIMS 6/29 FA4 GA4 Zm vims 6/26 TA2 WA4 Rm,Zm VIMS 6/21 QB4 RB4 Rm,Zm vims 7/9 RB1 SB2 Rm,Zm vims 7/9 db 06 a go III I I I @ I I I t p I ) I p It W W QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 131 IB4 JB4 RmZm VIMS 8/90 OA4 QA4 RTn,Zm vims 6/21 132 RA2 PA4 Zm cit. 6/17 RA2 OA2 Zm cit. 6/17 QA4 NA4 Zm Cit. 6/17 SA4 QA4 Rm,Zm Cit. 6/17 OA2 MA2 Zm cit. 6/17 NA4 LA4 Rm,Zm\Rm,Zm CitAVIMS 6/17\7/11 MA4 KA3 Rm,Zm\RmZm cit. WIMS 6/17\7/11 FA4 GA4 Rm,Zm VIMS 7/18 DB4 CB2 Rm,Zm vims 7/30 139 AA2 BA2 Rm,Zm VIMS No Date NI) BA1 zm vims No Date Cn DA3 AA3 zm vims No Date 140 YA4 XA3,YA1 zm VIMS No Date VA4 QA4,VA4 Zm,Rm VIMS No Date 141 GA3 FA3 Zm VIMS 6/18 152 BA3 zm cit. 9/8 BA3 AA3 Zm,Rm Cit. 9/8 DA2,CA4 BA3 Zm Cit. 9/8 159 Patuxent R. # Ec,Nm,Ngu,Ngr,Cd cit. 8/13 Patuxent R. # Ec,Ngu,Cd DNR 8/18 Patuxent R. # Ec,Cd Park 7/14 Back Channel # Cd,Ec,Zp,NguVa,Pcr,Nm Park 7/14 Patuxent R. # Ec,Cd,Pcr,Ppu,Pe Park 7/14 Mill Cr. # Ec,Cd,N,Zp Park 7/14 Galloway Gut # N,Cd Park 7/14 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 159 Railroad Cr. # N Park 7/14 Western Branch # N,Ec,Cd Park 7/14 Charles Branch # Zp Park 7/14 166 Caine Harbor Mile # Rm cit. 9/5 167 CA3 CA3 Zm cit. 9/21 BA3 BA3 Zm,Rm cit. 9/21 AA4 AA4 Zm Cit. 9/21 BA3 BA3 Rm DNR No Date Gray's Cove # zm DNR No Date 168 CA2 AA3 zm cit. 9/21 EA4 Rm DNR No Date BA3 Rm DNR No Date Rm DNR No Date Isle of Wright Bay # Isle of Wright Bay # Zm cit. No Date Isle of Wright Bay # Rm cit. No Date Turville Cr. # Rm Cit. No Date 170 CA3 EA3 Zm cit. 9/2 DA3 FA3 Zm,Rm cit. 9/2 BA3 GA3 Zm cit. 9/2 EA3 IA3 Zm cit. 9/2 EA3 JA3 Zm,Rm cit. 9/2 EA3 IA3 Zm cit. 9/2 AA3 AA3 Zm,Rm cit. 9/21 BA3 CA3 Zm,Rm cit. 9/21 BA3 BA1 Zm,Rm cit. 9/21 BA3 DA3 Zm,Rm cit. 9/21 EA3 JA3 Zm,Rm cit. 9/21 BA3 HA3 Zm,Rm cit. 9/21 BA3 GA3 Zm,Rm cit. 9/21 0 QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 170 DA3 FA3 zm Cit. 9/21 CA3 EA3 zm cit. 9/21 BA3 LA3 zm cit. 9/24 LA3 QA4 Zm cit. 9/24 JA4 PA4 zm cit. 9/24 HA4 OA4 Zm cit. 9/24 EA3 LA3 Zm,Rm cit. 9/24 GA4 NA4 Zm,Rm cit. 9/24 BA3 HA3 Rm DNR No Date Newport Bay # zm DNR No Date Newport Bay # zm DNR No Date Newport Bay # Zm DNR No Date Chincoteague Bay # Rm DNR No Date Tingles Narrows # Rm DNR No Date Rm,Zm cit. No Date Sinepuxent Bay # 00 172 DA3 FA3 Zm,Rm cit. 9/24 EA1 DA3 Zm,Rm cit. 9/24 CA4 zm cit. 9/24 HA4 HA3 Zm,Rm cit. 9/24 GA3 GA4 zm cit. 9/24 FA4 EA4 Zm cit. 9/24 KA3 JA3 Zm,Rm cit. 9/24 LA4 LA4 Zm,Rm cit. 9/24 LA4 KA1 zm cit. 9/24 MA3 NA4 Zm,Rm cit. 9/24 MA3 MA1 Zm,Rm cit. 9/24 IA4 IA4 Rm DNR No Date Blue Pond # zm DNR No Date Martin Bay# Rm DNR No Date Purnell Pond # Rm DNR No Date Scott Landing # Rm DNR No Date Brockatonorton Bay # Rm DNR No Date QUAD 1990 BED 1989 BED SPECIES" SOURCE*** 1990 SURVEY DATE 172 Brockatonorton Bay # Rm DNR No Date Bridge Cr. # Rm DNR No Date Johnson Bay # Rm DNR No Date Purnell Bay # zm DNR No Date Parker Bay Tumps # Rm DNR No Date Parker Bay # zm DNR No Date Rowley Cove # Rm DNR No Date Muddy Thorofare # Rm DNR No Date Big Bay Marsh # Rm,Zm DNR No Date 173 GA3 EA3 Zm,Rm Cit. 9/21 HA2 DA3 Zm,Rm cit. 9/21 EA3 IA2 zm cit. 9/21 EA3 KA2 Zm,Rm Cit. 9/21 EA3 LA4 zm Cit. 9/21 9/21 EA3 HA3 Zm,Rm Cit. EA3 GA3 Zm,Rm Cit. 9/21 FA3 FA3 Zm,Rm cit. 9/21 BA4 BA4 Rm cit. 9/27 AA4 AA4 Zm cit. 9/27 EA3 MA1 Zm,Rm cit. 9/27 EA3 OA1 Rm cit. 9/27 EA3 NA4 Zm,Rm cit. 9/27 DA4 CA4 Rm Cit. 9/27 Lone Pond # Rm DNR No Date Middlemoor Thorofare # Rm DNR No Date Pope Bay # Rm DNR No Date 175 AA3 AA4,BA3 Zm,Rm VIMS No Date t I db Abbreviations under column "Species" are as follows: Zm - Zostera marina (eelgrass) Rm - Ruppia maritima (widgeon grass) Ms - Myriophyllum spicatum (Eurasian watermilfoil) Ppf - Potamogeton perfoliatus (redhead-grass) Ppe - Potamogeton pectinatus (sago pondweed) Zp - Zannichellia palustris (horned pondweed) N - Najas sp. (naiad) Ec - Elodea canadensis (common elodea) Va - Vallisneria americana (wild celery) Tn - Trapa natans (water chestnut) Pe - Potamogeton epihydrus (leafy pondweed) Hv - -Hydrilla verticillata (hydrilla) Hd - Heteranthera dubia (water stargrass) Per - Potamogeton crispus (curly pondweed) Cd - Ceratophyllum demersum (coontail) Ppu - Potamogeton pusillus (slender pondweed) Ngu - Ndjas guadalupensis (southern naiad) Ngr - Najas gracillima (naiad) C - Chara sp. (muskgrass) Nm - NaJas minor (slender naiad) U - Unknown species composition Abbreviations under column "Source" are as follows: Capt. - Charterboat Captain's Survey cit. - Citizen's Survey FWS - U. S. Fish and Wildlife Service Surveys DNR - Maryland Department of Natural Resources COG - Metropolitan Washington Council of Governments HPEL - University of Maryland Horn Point Environmental Laboratory Harford - Harford Community College - Stan Kollar VIMS - Virginia Institute of Marine Science/School of Marine Science/College of William and Mary Park - Maryland-National Capital Parks and Planning Commission, Patuxent River Park. Essex - Essex Community College SAV Research Group Slash mark separates species data of independent survey sources and independent survey dates. No SAV bed mapped from 1989 or 1990 aerial photography but SAV bed presence was verified by 1990 groundtruth survey at this location. No SAV bed mapped from 1990 aerial photography but SAV bed presence was verified in 1990 at the 1989 bed location by groundtruth survey. t 1 9 hL. A db I CA) @@ 0) m-nmm===o a) @- 0) OOE-- -.1 @ T=mg 0@@ 0 00 0 @J@ 0 @ ===l, @, 000 . @ 1 0 0 0 0 0 r0 1 0 I , P 11