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Distribution of Submerged Aquatic Vegetation in the Chesapeake Bay and Tributaries and Chincoteague Bay SAV 4 QK Virginia Institute of Marine Science 122.8 D57 School of Marine Science 1987 College of William and Mary QSA V 1987 Distribution of Submerged Aquatic Vegetation in the Chesapeake Bay and Tributaries and Chincoteague Bay 1987 by Robert J. Orth, Adam A. Frisch, Judith F. Nowak, and Kenneth A. Moore Virginia Institute of Marine Science School of Marine Science College of William and Mary Gloucester Point, VA 23062 Contributions by: Nancy Rybicki R.T. Anderson Virginia Carter U.S. Geological Survey Reston, VA 22092 Funded by: Maryland Department of Natural Resources Virginia Institute of Marine Science U.S. Fish and Wildlife Service U.S. Environmental Protection Agency Allied-Signal Inc. National Oceanographic Atmospheric Administration Final Report Submitted to: U.S. Environmental Protection Agency Chesapeake Bay Program Annapolis, MD 21403 ON April, 1989 'kv@ Cover Photo: Aerial photograph of the Potomac River south of Washington D.C., shot at 12,000 feet by AEROECO Inc., Edgewater, MD. t r prop-=ty of, Qz [IS DEPARTMENT OF COMMERCE NOAA COASTAL SERVICES CENTER 2234 SOUTH HOBSON AVENUE CHARLESTON , SC 29405-2413 CONTENTS Elge Tables .............................................................. IV Figures ............................................................. V Executive Summary ................................................... VII Acknowledgements ..................................................... XI 1. Introduction .................................................... I 0 2. SAV Species ..................................................... 3 3. Methods ......................................................... 4 Introduction ................................................ 4 Aerial photography .................. ****'* .................. 4 Mapping process ..................... 9 SAV perimeter digitization and area c u ation ............. 13 Tests of precision and accuracy ............................. 16 Calculation of SAV bed mean area ............................ 17 Standard operating procedures ............................... 17 Conversion of SAV Perimeter Points to Latitude & Longitude.. 18 Organizational provinces for analysis ....................... 20 Ground truth and other data bases ........................... 25 Data presentation ........................................... . 30 4. Results ..................................................... 48 Susquehanna Flats (Section 1) ............................... 48 Upper Eastern Shore (Section 2) ............................. 50 Upper Western Shore (Section 3) ............................. 52 Chester River (Section 4) ................................... 54 Central Western Shore (Section 5) ........................... 54 Eastern Bay (Section 6) ..................................... 57 Choptank River (Section 7) .................................. 59 Patuxent River (Section 8) .................................. 61 Middle Western Shore (Section 9) ............................ 61 Lower Potomac River (Section 10) ............................ 64 Upper Potomac River (Section 11) ............................ 66 Middle Eastern Shore (Section 12) ........................... 70 Mid-Bay Island Complex (Section 13) ......................... 72 Lower Eastern Shore (Section 14) ............................ 72 Reedville (Section 15) ..... 75 Rappahannock River Complex 75 New Point Comfort Region (Section 17) ....................... 78 Mobjack Bay Complex (Section 18) ............................ 78 York River (Section 19) ..................................... 81 Lower Western Shore (Section 20) ............................ 81 James River (Section 21) .................................... 84 Chincoteague Bay ............................................ 86 II CONTENTS (CONTINUED) 0 P Lqe 5. Historical Trends ........................... 88 York.River ............................. 90 Rappahannock River ........................................... 95 Eastern Shore ............................................... 100 0 6. Literature Cited .............. : .................................. 105 7. Appendices ....................................................... 108 A. Species of submerged aquatic plants found in the 0 Chesapeake Bay and tributaries ............................ 109 B. Latitude and longitude coordinate points defining the 21 major sections of the Chesapeake.Bay SAV study area and Chincoteague Bay ....................... 110 C. Topographic quadrangles showing distrib ution, abundance, and ground truthing of SAV in 1987 ............. 114 D. SAV bed areas for each topographic quadrangle in 1987 ..... 219 TABLES Number Paqe 1 Guidelines for acquisition of aerial photographs ......... 7 2 List of topographic quadrangles in Chesapeake Bay and Chincoteague Bay SAV study areas and corresponding code numbers ............................................ 11 3 Area description for 21 major sections in the Chesapeake Bay SAV study area ...................................... 23 4 Total area of SAV by quadrangles for 1987 ................. 31 5 Number of hectares of SAV for each of the major sections in the bay for 1987 ..................................... 38 6 Number of square meters of SAV in each quadrangle of the 21 major sections for 1987 .............................. 39 IV FIGURES Number Paqe 1. Map of Chesapeake Bay and tributaries with locations of all SAV beds in 1987 .................................... VIII 2 Approximate location of flight lines where SAV photo- graphy was acquired in 1987 ............................. 6 3 Location of topographic quadrangles in the Chesapeake Bay and tributaries and Chincoteague Bay for determining distribution of SAV ..................................... 10 4 Crown density scale used for determining density of SAV beds: very sparse (1), 0-10%; sparse (2), 10-40%; moderate (3), 40-70%; dense (4), 70-100% ............................... @14 5 Location of upper, middle and lower zones of the Chesapeake Bay and the 21 major sections used for delineation of SAV distribution patterns (see Table 3 and text and Appendix B for exact boundaries) ........................................ 22 6 Location of USGS vegetation sampling transects in the tidal Potomac River above Mattawoman Creek ................... 27 7 Location of USGS vegetation sampling transects from Mattawoman Creek to Port Tobacco River ................... 28 8 Distribution of SAV in Susquehanna Flats section ............ 49 9 Distribution of SAV in Upper Eastern Shore section .......... 51 10 Distribution of SAV in Upper Western Shore section .......... 53 11 Distribution of SAV in Chester River section ................ 55 12 Distribution of SAV in Central Western Shore section ........ 56 13 Distribution of SAV in Eastern Bay section .................. 58 14 Distribution of SAV in Choptank River section ............... 60 15 Distribution of SAV in Patuxent River section ............... 62 16 Distribution of SAV in Middle Western Shore section ......... 63 17 Distribution of SAV in Lower Potomac River section .......... 65 18 Distribution of SAV in Upper Potomac River section .......... 67 19 Percent cover of Hydrilla in vegetated areas in the tidal Potomac River in 1987 ..................................... 68 V 0 FIGURES (continued) Number L4ge 20 Percent cover of submersed aquatic vegetation in the tidal Potomac River in 1987 ..................................... 69 21 Distribution of SAV in Middle Eastern Shore section ......... 71 22 Distribution of SAV in Mid-Bay Island Complex section ...... 73 23 Distribution of SAV in Lower Eastern Shore section .......... 74 24 Distribution of SAV in Reedville section .................... 76 0 25 Distribution of SAV in Rappahannock River Complex section ... 77 2 6 Distribution of SAV in New Point Comfort section ............. 79 27 Distribution of SAV in Mobjack Bay Complex section ........... 80 28 Distribution of SAV in York River section .................... 82 29 Distribution of SAV in Lower Western Shore section .......... 83 30 Distribution of SAV in James River section .................. 85 31 Distribution of SAVin Chincoteague Bay ..................... 87 32 Location of 3 areas used in historical trends analysis ...... 89 33 SAV changes in the York River, 1971-1987 ..................... 91 34 SAV in the York River, 1971 ................................. 92 35 SAV in the York River, 1978 .................................. 36 SAV in the York River, 1987 ................................. 94 37 SAV changes-in the Rap pahannock River, 1971-1987 ............ 96 38 SAV in the Rappahannock Rive r, 1971 ......................... 97 39 SAV in the Rappahannoc-k River, 1974 ......................... 98 40 SAV in the Rappahannock River, 1987 ......................... 99 41 SAV changes along the lower Eastern Shore, 1978-1987 ........ 101 42 SAV along the lower Eastern-Shore, 1978 ..................... 102 43 SAV along the lower Eastern Shore, 1980 ..................... 103 44 SAV along the lower Eastern Shore, 1987 ..................... 104 VI 40 EXECUTIVE SUMMARY The distribution of submerged aquatic vegetation during 1987 in the Chesapeake Bay, its tributaries, and Chincoteague Bay, was mapped at a scale of 1:24,000 using color aerial photography. SAV bed perimeter information was digitized and stored in a computerized data base. Ground truth information was obtained from the U.S. Geological Survey, the Maryland Department of Natural Resources, the University of Maryland Horn Point Laboratory, Harford Community College and the Virginia Institute 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 DNR Watermen's Assistance Program, provided additional ground truth information. In 1987, the Chesapeake Bay had 20,119 hectares of SAV, with 2,954 9,202 and 7,963 hectares occurring in the Upper, Middle and Lower Bay zones, respectively (Fig. 1). Seventy-five percent of the SAV in the Upper Bay zone was located in the Susquehanna Flats section. Nine species of SAV were documented by ground truth surveys in this section, with Myriophyllum spicatum being the dominant species. Hydrilla verticillata was found in the Flats but occurred in small isolated beds, as did all SAV in this area. In the Upper Western Shore section SAV was concentrated in the Bush, Gunpowder, and Middle Rivers, in particular Saltpeter and Seneca Creeks, with M. spicatum and Vallisneria americana being most abundant. In the Chester dL River section, SAV was most abundant adjacent to Eastern Neck and Eastern Neck Island and in Langford Creek. In this region Ruppia maritima was the most abundant of six species which were reported. VII 3940.0- SUSOUEHANNAR CHESAPEAKE BAY PATAPSCO R.. 3910. 0 CHESTER R. 3840.0 PA R. Pot; 0 C f?. 3810. 0 3740.0 A, 3710. 0 3640. 04 0 0 0 Figure 1. Map of Chesapeake Bay and tributaries with locations of all SAV beds in 1987. Vill 4W In the Middle Bay Zone SAV was abundant in: the Eastern Bay; the lower Honga River area including Barren Island; Big and Little Annemessex Rivers; the lower sections of the Manokin River; Bloodsworth, Southmarsh, Smith and Tangier Islands, and the broad shoal area between Smith and Tangier Islands. This Middle Bay zone was redrawn from earlier surveys and now includes additional areas of SAV formerly designated to the Lower Bay zone. R. maritima was the dominant species reported for this mid-bay area, with Z. marina being abundant in the Smith-Tangier Island area. The Middle Bay zone also includes the entire Potomac River. SAV was concentrated in two distinct zones: the tidal freshwater region where H. verticillata was the numerically dominant species, and in the region around the Rt. 301 bridge, including the Nanjemoy and Port Tobacco Creeks. V. americana and M. spicatum were dominant species in this area. The total SAV in the Hydrilla dominated areas has not increased appreciably during the last 2 years, although Hydrilla has been reported further downriver. SAV was abundant throughout the entire Lower Bay zone except for the James River. Fifty-one percent of SAV in the Lower Bay zone was found in the Lower Eastern Shore section, around the Fox Islands and the mouths of major creeks (i.e Cherrystone Inlet, Hungars Creek, Mattawoman Creek, Occahannock Creek, Craddock Creek, Pungoteague Creek and Onancock Creek). Along the western shore, SAV was abundant in Mobjack Bay (15% of SAV in the Lower Bay zone), lower York River, Back River and Drum Island Flats area adjacent to Plum Tree Island. Both R. maritima and Z. marina were abundant throughout this zone. R. maritima had rapidly spread in both the Piankatank and Rappahannock Rivers in the last year, occurring in sparse to dense beds in many previously unvegetated areas, especially in the Corrotoman River. Ix SAV in Chincoteague Bay was little changed in distribution from 1986. All of the SAV consisted of R. maritima and Z. marina and'was located along the eastern side of the bay behind Assateague Island. SAV distribution since the 1970's was examined for three locations in the Chesapeake Bay which represent different scenarios of change that SAV has undergone: .1. The York River (1971-1987) where SAV declined in upstream sites in the early 1970's but has been slowly returning over the last five years; 2. The Rappahannock River (1971-1987) where SAV al'most completely disappeared.in the early.1970's and has just recently been returning to a few sections, and 3. The lower Eastern Shore (1978-1987):where SAV had only slightly declined in'the 1970's. Continued monitoring of the changes in SAV populations at these sites as well as others, coupled with detailed water quality measurements and laboratory experimentation, should lead to a much greater understanding of those factors that control the distribution and abundance of SAV in the Chesapeake Bay. X ACKNOWLEDGEMENTS We would like to gratefully acknowledge all federal and state agencies who financially supported this project: the Maryland Department of Natural Resources (Md.DNR); the Virginia Institute of Marine Science (VIMS); the U.S. Fish and Wildlife Service (F&WS); the U.S. Environmental Protection Agency (USEPA); and the National Oceanographic and Atmospheric Administration (NOAA). Also, we thank Allied - Signal, Inc. for generously providing funding for this work. 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 1987 photography. F&WS and the Chesapeake Bay Foundation (CBF) 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. J. Court Stevenson and Lori Staver of the University of Maryland, Horn Point Environmental Laboratory (HPEL), and Stan Kollar of Harford Community College (HCC) provided ground truth information for certain specific regions of the Maryland portion of the Bay. xi Nancy Rybicki, R.T. Anderson and Virginia Carter of the U.S. Geological Survey (USGS) provided ground truth information from three 1987 surveys conducted on portions of the Potomac River and also contributed figures to this report from their open-file report (Rybicki, et. al., 1988). VIMS personnel who assisted in ground truthing Virginia waters of the Bay are Curtis Harper, Angela Ba rbieri, Jim Perry, Carol Curtis, George Pongonis, and Steve George. The production of this report required the dedication of numerous scientists, technicians, artistsi photographers, and others. The following people deserve a note of thanks: Bert Brun and Linda Hurley, U.S. F&WS; Frank Dawson, Md.DNR; Rich Batiuk and Rickie Price, USEPA-Chesapeake Bay Program (CBP); Margaret Podlich (CBF). We are especially grateful to the dedicated VIMS personnel who contributed greatly to the production of this. report: Jan Hodges, Tim Smithwic.k, Michelle Feeley, Jennifer Whiting, and Chris Peery for assistance in data collection and compilation; Mary Jo Shackelford, Harold Burrell, Kay-Stubblefield, Diane Bowers, Silvia 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, Valise Jackson, and Janet Walker for word processing; Pat Hall and David Boughan for computer services; and Cathy Hodock, Marion King, and Ned Hedrick of the purchasing department. Leigh Medford, Photographic Services, Virginia Department of Transportation; Claud Summers, U.S. Geological Survey (USGS), National Cartographic Information Center (NCIC), Mid-Continent Mapping Center; and Craig Breen, Engineering Media Inc., were helpful in the procurement of high quality topo maps and map copies. Robert Macomber. (AEROECO) conducted the aerial photographic missions and was responsible for the high quality photographs. XII Technical reviewers of the 1987 report were Linda Hurley (F&WS), Frank Dawson (MdDNR), Robert Blama (Corps of Engineers, Baltimore District), Rich Batiuk (USEPA-CBP), Debbie Jellick (Metropolitan Council of Governments), Jim Cummings (ICPRB), Tim Goodyear (NOAA), Catherine Harold (Virginia Council on the Environment), Stan Kollar (HCC), Court Stevenson and Lori Staver (HPEL), and Virginia Carter and Nancy Rybicki (USGS). XIII SECTION 1 INTRODUCTION A major goal of the Chesapeake Bay cleanup program is to insure that the living resources of the bay remain viable and productive components of the bay ecosystem. Understanding the complexity of the Chesapeake Bay, in particular those factors that affect the distribution and abundance of the living resources, is critical if we are to develop effective management strategies to improve the quality of the Chesapeake Bay environment. Submerged aquatic vegetation (SAV) is one of the most important living resources of the Chesapeake Bay. Because of its sensitivity to small changes in environmental conditions, SAV can serve as a barometer of the health of the bay (Orth and Moore, 1988). A key component to understanding factors affecting spatial and temporal changes in distribution and abundance of SAV is documentation of annual changes in abundance of SAV beds over a long period. The Chesapeake Bay Program includes a component which emphasizes the monitoring of living resources on a regular basis. Since SAV communities can respond quickly to changes in water quality, comprehensive monitoring of this resource can provide an integrated view of the status of eutrophication and relative health of the system throughout much of the bay region. SAV communities in the entire Chesapeake Bay and tributaries have been photographed, mapped and the areas of the beds digitized in 1978, 1984, 1985, 1986 and 1987 while portions of the upper bay were mapped and digitized in 1979 and the lower bay was mapped and digitized in 1980-and 1981 (Orth, et. al., 1979; Anderson and Macomber, 1980; Orth, et. al., 1985, 1986, 1987). @Numerous SAV ground surveys have been conducted but most have been limited to specific sections. No one ground survey has delineated baywide SAV patterns. Aerial photography has proved to be a useful tool in examining SAV distribution patterns and, when combined with appropriate ground data, has provided an accurate, synoptic pIcture.of baywide SAV distribution. The goal, of the 1987 work was to continue the annual monitoring of SAV on a baywide basis using aerial photographic methods with appropri ate ground truth to substantiate presence or absence of SAV in particular sections. 41 2 SECTION 2 SAV SPECIES Ten species of submerged aquatic vegetation are commonly found in the Chesapeake Bay and its tributaries. Zostera marina (eelgrass) is dominant in the lower reaches of the bay. Myriophyllum spicatum (water milfoil), Potamogeton pectinatus (sago pondweed), Potamogeton perfoliatus (redhead grass), Zannichellia palustris (horned pondweed), Vallisneria americana (wild celery), Elodea canadensis (common elodea), Ceratophyllum demersum (coontail) and NAjas guadalupensis (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 (widgeongrass) is tolerant of a wide range of salinities and is found from the bay mouth to the Susquehanna Flats. Approximately eleven 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), presently dominates SAV beds in the tidal freshwater reaches of the Potomac River and has also been reported from the Susquehanna Flats, where its growth has not been as widespread (Kollar, pers. comm.). 3 .SECTION 3 METHODS Introduction Color aerial p hotography 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 tributa ries, and Chincoteague Bay in 1987. SAV beds mapped from photographs onto United States Geological Survey (USGS) 7.5 minute topographic quadrangles were then digitized, prov.iding a digital data base for analysis of bed area and location.. Ground truth information collected in 1987 was mapped onto the same topographic quadrangles. Aerial Photography The 1987 SAV photography was obtained by AEROECO (Edgewater, MD) using a Zeiss Jena LMK 15/2323 camera, a 153 mm (6 inch) focal length Zeiss Jena Lamegon PI/C lens, and Kodak 24 cm (9 1/2 inch) square negative Aerochrome MS type 2445 film. The camera was mounted in the bottom fuselage of AEROECO'S Partenavia P68.Observer,,a twin engine high wing reconnaissance aircraft. Photography was acquired at approximately 12,000 feet altitude, yielding a 1:24,000 photographic scale. Flight lines for photography were predetermined by AEROECO (and approved by the Principal Investigators) 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), as well as land features necessary as control points for accurate mapping. 4 Flight lines were drawn on 1:250,000 scale USGS maps (Fig. 2). Flight lines we're prioritized by major sections and dates of flight windows for aerial photography were specified by the Principal Investigators by contract with AEROECO. Acquisition of photography was 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 documentation and approval by the funding agencies 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 are as follows. 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 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 5 4 40 SJSWEHA FLA 4 a 4 41 BALTI 37 34 3 5 5 2 2 56 2 vp V) A 7 3 a 21 C (P 2 27 19 0 Is 13 17 126 is Is 1 3 122 74 3 1 11 10 1 5 121 7 76 71 ; I -t I TO M 14 117 4 77 3 5 2 109/- 00 62 110 7 sic so 89 9 05 93, A 10 00 0 k 2.0 102 i 103 KILOMETER Figure 2. Map of Chesapeake Bay and tributaries with approximate locations of flight lines for 1987 photography. 6 TABLE 1. 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 @ore thaB 30 percent of frame. Sun angle was generally between 20 and 40 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 (surface). 8. Plotting - Each flight line included sufficient identifiable land area to assure accurate plotting of grass beds. 7 tilt. The scale/altitude/film/focal length combination was coordinated to produce.two foot resolution. Wind speed was monitored hourly from the flight service available in the region. Under normal operatin*g-conditions, flights were usually conducted under wind speeds less than 10 mph. (Above 40 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. (Robert Macomber of AEROCOo, personally responsible for acquisition of the 40 photography, has had 10 years experience in aerial photography of SAV and is knowledgeable of the Chesapeake Bay and tributaries.) 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 following 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 proiritizing and executing the photography, flights. were planned to coincide with these atmospheric conditions. Exposed film was processed by AEROECO. A contact print was produced for each exposed frame. Each photograph was labeled with date and time of acquisition as well as location. Film and photographs were stor ed under appropriate environmental conditions to prevent degradation of the product. 8 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 3 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 3 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 1986 from aerial photography, 1987 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 the same scale on stable transparent mylar by the Virginia Department of Highways using a diazo process. SAV from the 1987 aerial photographs was mapped onto these diazo copies of USGS topographic quadrangles. Delineation of SAV bed boundaries onto the topgraphic 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. 9 234 SISWA NANNA FLAM v v 67 a9(ni 13 14 516 17 t92.021 22 25 27 HIN 158 30 M32@ Ln 159 37 36 160 -A 6 35e x 7W4 39 @41 42 44 45 @46 0 47 51 52 1@ 53 54 48 50 (X 5511 162 f3 165 57 .58 5N-, @ "? j \/ \-/*'II 11@2 63 f\ 1 70 '164 IA7 166 64 5 66 '@68.r-N 4@ @ V 84 5,52 169 79 @Si',o 82 IZ 76 1724 7 89 90 91 92 1 @@13 1 -11, X@" 94. 97 98 x 9:8 100 101 \@@ 105 107 103 \2!@z ') 0'06 N 112 113 g14 115 rq,,7 lie 119 121 122 120 t 123 124 126 127P 128 129'\- 130 133V 139 141 142@ 135 156 114 144 145\- 46 1 151 152 0 20 146d 149 ""nz K--j- .KILOMETER -Iiio 1a3 154 07 "9 '09 AS 6 6 AC 19 169 949" q14 @130 1. 3- @1'32 06 '+131 Figure 3. Location of USGS topographic quadrangles in the Chesapeake to Bay, its tributaries and Chincoteague Bay. 10 TABLE 2. LIST OF USGS 7.5 MINUTE QUADRANGLES IN CHESAPEAKE BAY AND CHINCOTEAGUE BAY SAV STUDY AREAS AND CORRESPONDING CODE NUMBERS (SEE FIG. 3 FOR LOCATION OF QUADRANGLES. THOSE 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. 50. Prince Frederick, 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. 35. 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. 84. 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. 11 TABLE 2. (continu ed) 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. Lottsburg, Va. 139. Yorktown, Va. 97. Heathsville, Va.-Md. 140. Poquoson West, Va. 98. 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. t 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. Parksleyl 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. i15. West.Point, Va. 158. Wye Mills, Md. 116. Saluda, Va. 159. Bristol, Md. 117. Wilton, Va. 160. Fowling Creek, Md- 118. Deltaville, Va. M. Port'Tobacco, Md. i19. 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. 1@7. 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. 12 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. 4). 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 (1 to 4) corresponding to the above density categories. Additionally, each distinc*t 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 in 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 Numonics Model 2400/2200 Digil'ablet 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. Each SAV bed was digitized at least four times and the area reported as a mean of three. 13 5 15 2 5 0-40 35 45 55 40-70 65, 75 85 70-100 95, PERCENT CROWN COVER Figure 4. 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%. 14 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. SAV bed area in square centimeters on the chart was calculated via the following equation: A = 1/2 1 (xi * Y2 - X2 * Y1) + (X2* Y3 - X3* Y2) + "' + (Xn* YI - X1* Yd where Xn and Yn are the nth digitized perimeter points in centimeters. The D 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 1:24000: A9(m2on ground) = Ac(cm2on chart) * 57600 (m2on ground / cm2on chart) where A is the area on the ground of each SAV bed and A is the area on the 9 c chart. The area on the ground is then stored for later use. 15 Tests of Precision and Accuracy Prior to each digitization session, the Numonics instrument was checked manuall.y 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 th e 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 i'n 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 Imaintained 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 16 Calculation of SAV Bed Mean Area and Choice of Representative SAV Bed Every SAV bed mean area was the result of at least four independent digitizations of the outline of each SAV bed. The computer made an area calculation of each replication and the 3 bed outlines or perimeters most similar in terms of area were then used for the calculation of a mean area. The perimeter defining the area most similar to the mean area was then saved by the computer program as the representative perimeter for this specific SAV bed. Representative perimeters for all 1987 SAV beds were later converted to Latitude and Longitude and a copy of each on computer tape was then sent to the EPA Chesapeake Bay Program. The areas used in the mean area calculation do not by contract requirements have a range in excess of 5% of the mean area. All bed areas having an error rate in excess of 5% are flagged by the VIMS quality assurance quality control computer program for additional error assesment. Infact, the VIMS error rate is normally less than 1%. A complete outline of the digitization procedure can be found in the quality assurance project plan for the 1987 submerged aquatic vegetation, distribution and abundance survey of the Chesapeake and Chincoteague Bays (available from the EPA Chesapeake Bay Program Office). Standard Operating Procedures for Quality Assurance/Quality Control Standard operating procedures (SOPs) were developed to facilitate orderly and efficient processing of the 1987 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: 17 a detailed procedure outlining 46-steps for digitizatioh 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, a.nd which was used to guide and record editing operations*; and a-flow'chart use d to track progress of:all operations including-all changes in file names. Examples'of these-SOPs are in the quality assurance project plan for the 1987 submerged aquatic'vegetation, distribution and'abundance survey of'the Chesapeake and Chincoteague Bays. -0 Conversion of SAV Perimeter Points from X,Y Centimeters to Latitude and Longitude Before SAV perimeter information was to be exported to the EPA Bay .Program, the perimeter points had to be converted from X,Y centimeters to the more generally applicable latitude and longitude. This is done via a three step two dimensional-linear interpolation between the four corner points of every quadrangle. At.the start of digitization of every chart, 0 the location of each corner point in X,Y cm and in latitude and longitude is recorded at the head of the data file. The cornets are numberedi 1 lower left corner or chart origin upper left corner 3 upper right,corner 4 lower right, corner These corner points are then used to convert each individual X,Y perimeter point to latitude'and:longitude. -If additional;files are needed 18 for a given chart, a new set of corner points are digitized and stored at the head of these files. The steps for the conversion of from X,Y cm to lat. and long. are: 1. Transpose each X,Y,perimeter point from the original, pon orthogonal (not at right angles) chart axes defined by the Qriginal four corner points to a new set of orthogonal chart axes and defined by a new set of four corner points. 2. Calculate centimeter to lat. and long. linear conversion factors from the transposed chart corner points via: XCONV = 0.125 / (XCQRNERPOINT(4) - XCORN@RPOINT(1)) YCONV = 0.125 / (YCORNERPOINT(2) - YCORNERPOINT(l)) Where XCONV is the X cm to lat,lon conversion factor. YCONV is the Y cm to lat,lon conversion factor. 0.125 is a constant representing the distance in decimal degrees latitude or longitude between each successive chart qorner point. XCORNERPOINT(#) is the X value in centimeters of the numbered chart corner point. YCORN@RPOINT(#) is the Y value in centimeters of the numbered chart corner point. 3. Perform linear conv ersions from orthogonal X,Y cm perimeter point to latitude and longitude via the following equations: 19 YLAT = YCHAkT(I) + (YPORTH * YCONV) XLON = XCHART(1) - (XPORTH * XCONV) WHERE YLAT is the new Y point in decimal degrees latitude. XLON is the new X point in decimal degrees longitude. 4-1 YCHART(#) is the latitude of the chart corner point. XCHART(#) is the longitude of the chart corner point. YPORTH is-the Y perimeter point in cm from the orthogonal chart coordinate system. XPORTH is the X perimeter point in cm from the orthogonal chart coordinate system. These new Lat,Lo.n perimeter points are then stored in a special EPA submission file for VIMS SAV Data.. The submission file-structure is fully documented in the VIMS 1987 QA project plan. Organizational Provinces for Analysis and Discuss-ion 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). 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 area just south of the mouth of the Little Annemessex River is referred to as theLower Bay zone (Fig..5). (It is important to note here that the designation for the Lower Bay and Middle Bay zone has been altered to facilitate a more accurate way of 20 reporting SAV distribution in the mid-section of the bay, in particular in and around the major island complex from Tangier to Bloodsworth Island.) 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: polyhaline (18-250/oo), Lower zone; mesohaline (5-180/oo), Middle zone; oligohaline (0.5-50/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. 5, Table 3). These sections, which were first delineated for the 1984 survey (Orth, et. al, 1985) and have been slightly modified for the 1987 survey, denote relatively distinct parts of the bay and its tributaries that are readily identifiable from a map. 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 lat. and long. of the boundary points of each Chesapeake Bay section. SAV distribution in Chincoteague Bay is presented and discussed as a separate section. 21 3940.0 SUSQUEHANNA R CHESAPEAKE cc BAY LJJ PATAPSCO . 3910.0 4 5 6 3840.0 - 8 7 -12 3810.0 - 9 VA 10 Ip 15 3740.0 - 14 16 cc LLJ 3710.0 - 20.1- 0 3640.0 21 0 0 0 0 0 0 0 0 0 to 0 0 Pq LO r- Figure 5. Location of upppr, .middl'e and lower 2ones of the Chesapeake Bay and the 21 major sections used for delineation'of SAV distribution patterns.. (See Table 3 and text for exact boundary positions) 0 22, TABLE 3. AREA DESCRIPTION FOR EACH OF 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 Choptank 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. ---------------------------------------------------------------------------- ---------------------------------------------------------------------------- continued 23 0 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 I.,slands. 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 - 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, Piankatank 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 Is-land. Section 20. Lower Western Shore includes all areas south of Goodwin Island to Broad Bay-off.Lynnhaven Inlet, excluding the James River. 0 Section 21. 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 which also changes the delineation of the three major zones. (See report for these changes and see Figure 5 and Appendix B for boundary locations). 24 0 Ground Truth and Other Data Bases Ground truthing was accomplished by cooperative efforts of a number of agencies and individuals. Although incomplete for most areas, ground truthing confirmed the existence of some SAV beds mapped from 1987 aerial photography, located a few SAV beds not visible from the photography, and provided species data for most of these beds. 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 also were examined carefully by divers for any extant SAV. U.S. F&WS Citizen survey data were also added to the Virginia maps 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 since the first bay-wide survey in 1978. In Maryland, ground truth data were obtained in 1987 by the USGS Potomac River study, two SAV research and transplanting projects, and the Citizen and Charterboat Captain volunteer surveys. The field study in the Potomac River by the USGS (Rybicki et al., 1988) from the Chain Bridge near Pimmit Run at Washington, D.C. to the 301 bridge near Morgantown, Md. (Figs. 6, 7) used shoreline surveys and sampled transects to document the distribution of SAV in the tidal Potomac River and transition zone. 25 The USGS conducted shoreline surveys in the tidal freshwater portion of the river and tributaries (Fig. 6) in late June and early October of 1987 by boat, using rakes to collect samples'to determine presence or,absence of SAV. Plants were identified b ,.,y species and the proportion of each was 40 estimated for vegetated areas. Each vegetated area with species proportions was referenced on USGS 7.5 Minute topo maps. The transition zone (Fig. 7) was surveyed in late July by raking for SAV at previously established 41 vegetation transects and by spot-checking between transects and in small tributaries. Transects were perpendicular to shoreline and terminated just beyond vegetation or at 60 meters when no SAV was present. All species were identified and tabulated by transect. Codes for the transects in Figs. 6 and 7 contain the location and the river or tributary mile. For example, in MN-01T-2, MN is Mattawoman Creek (Fig. 6), OIT is one nautical mile up the tributary from the mouth, -2 is the second transect; in PY-06R, PY is Piscataway Creek (Fig. 7), 06R is the sixth transect on the edge of the main river. Data from these surveys were transferred to the SAV distribution maps in Appendix C. 40 One SAV transplanting project being conducted on the Susquehanna Flats by Stan Kollar of Harford Community College (HCC) provided data in the form of species presence by percentage, primarily by visual estimates. Species locations from these data were added to the SAV maps in Appendix C. A SAV research group at University of Maryland Horn Point Environmental Laboratory (HPL) headed by Court Stevenson also provided ground truth data. Maps of their study sites on the Choptank River were annotated on the maps for this report (Appendi x C-) indicating the species reported for 1987. 26 390 77.015' 77' Run Washington, D.C. RI-0111 WC-01 R ii:ii: is: Lake Rate Ba-yqft NA-02R BB-01 R Run XX OR-01 MARYLAND 4, AD-01R Woodrow Wilson Bridge DM-01 R PY-01 R Dyke VIRGINIA Marsh----- DM-02R PY-02R 38*45' Littke Huntirg C@@k) [@M-03R PY-03R DM-04R PY-04R GC-04R GC-02R GC-01 -05R PY GC-05 GC-03R GC-01T-1 PY-01T-1 GC-01T-2 PY-02T-1 10 '0 10 GC-01T-3 10, Q -06R y - I AR . ....... Civek GC- Marshall ot PM-01 C-0 all H 09A PM-02R P -03R M PM-04R 0 5 10 MILES 0 5 10 KILOMETERS ......... . Quantic .............. ... ......... ........... Figure 6. Location of vegetation sampling transects in the tidal Potomac River above Mattawoman Creek. 27 77' ............. xx- Hallowing Pt ............... ...Po ....... .. ian Head RN-02T-1 NN-02T-2 NN-03T-3 k 0 MN-04T.2 014 &N-04T-1 MR-03T.2 . . . ............ .. .... ...... . . ... . .......... ....... ...... AWN-03T.) *!N-OZTj V Z- X Wafflico MARYLAND 38130' po.". 2 ro.31r- MP-OIR .... ...... Sandy Pt P047-1 ....... ..... F 3 OX P-010' 11P.02R XG N -.- - PO-Irf P0.1T.2 AQ-01T-1 0: Aj1 *A F0.11-1 ..... ... . ..... . ............... A EP-03R ,Q fil r.0 A, J7. NP-J)R Q=3TT )OUglas Pt NP 4R NYOZI-J *IJD AP-03Rl--::.:.--..: ........ .... Ny.01T.1 .. .... . ....- SR AQ-03T-1 my.01T-2 xP-jjR 0 NP-0s R AQ-02T-2 RP-06R ..... . .... NP-10 AQ-01T, .011L P ....... ....... ..... ...... NXISR .. ....... . .... Xi Maryland Pt .... . . . . ...... . . .......... 7- n . .... ....... I....1 1-:1 RI VER pot . . . ............ ...... .. X X. -X. ...... .......... Mom- -M ... ..... .. ... .. . . ..... ... C", .... ..... .. . . . ..... ...... . ........... VIRGINIA X: 0 10 MILES 0 5 10 KILOMETERS Figure 7 Location of USGS vegetation sampling transects from Mattawoman Creek to Port Tobacco River. 28 In addition to*the scientific surveys, priva te citizens participated'in identifying SAV beds by checking areas in the bay for SAV. 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 (DNR) Watermen's Assistance Program. Boat captains were provided with reduced SAV quadrangle maps to aid in location of SAV beds and with data sheets on which to record information on each SAV bed identified. Sampling of SAV sites was undertaken at low tide. Samples were taken by hand, net or rake. Pl-ants were identified as to species onsite or placed in zip-lock plastic bags and sent to the DNR for identification. (See maps, Appendix C, for these data.) Private citizens volunteered to assist in the SAV ground survey under guidance of the United States Fish and Wildlife Service (F&WS) and the Chesapeake Bay Foundation (CBF). This program entailed identifying and recording the location of SAV in the bay. Volunteers were recruited through press releases, newsletters and personal letters. Volunteers, provided with an identification guide of SAV, reduced 1986 SAV maps, and data sheets, visited numerous sites around the bay. Each volunteer was asked to identify the location where SAV was sighted, as well as water conditions, how many and which kind of species, grass bed size, percentage area covered, and location description. All information from the Charterboat Captain's survey and Citizen's survey was submitted to Linda Hurley (F&WS) and Margaret Podlich (CBF) for processing. Species locations were mapped in Appendix C. Ground survey information was included on the SAV distribution and abundance maps in Appendix C to show positions of the survey stations in relation to the beds of SAV mapped from the aerial photographs. Each survey was designated by a unique symbol to identify the different methods. In 29 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 unless it was redundant.' Data Presentation SAV distribution data are presented by topographic quadrangle (Table 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. 30 1490 TABLE 4. TOTAL AREA OF SAV IN HECTARES BY TOPOGRAPHIC QUADRANGLES FOR 1978, 1984, 1985, 1986 AND 1987. QUADRANGLE 1978 1984 1985 1986 1987 1. Conowingo Dam, Md.-Pa. - - 0 0 - 2. Aberdeen, Md. - 0 6.34 5.77 4.18 3. Havre de Grace, Md. 803.67 1741.85 1605.81 1977.42 1857.89 4. North East, Md. 5.62 13.31 29.46 6.95 5.99 5. Elkton, Md. 0.75 0 0 0 0 6. White Marsh, Md. - 0 0 0 0 7. Edgewood, Md. 10.48 49.81+ 6.31 ... 0.52 8. Perryman, Md. - 2.01 4.64 0 2.93 9. Spesutie, Md. 0.84 411.38 439.96 369.54 379.65 10. Earleville, Md. 4.67 3.47 11.60 9.72 4.69 ii. Cecilton, Md. - 0 0 0 0 12. Baltimore East, Md. - 0 0 0 0 0. Middle River, Md. 90.06 0 74.80 ... 22.04 14. Gunpowder Neck, Md. 200.71 183.99+ 132.99 +++ 90.54 15. Hanesville, Md. 9.31 5.48 10.10 7.70 42.35 16. Betterton, Md. 6.40 5.74 12.89 8.40 19.81 17. Galena, Md. 1.46 11.88 0.61 10.91 7.57 18. Curtis Bay, Md. 33.40 0 0 0 0 19. Sparrows Pt., Md. 10.52 0 5.56 0 20. Swan Point, Md. 29.86 18.65 10.25 3.33 1.60 21. Rock Hall, Md. 127.25 30.13 14.71 5.97 5.31 22. Chestertown, Md. 12.31 0 1.92 0 6 23. Round Bay, Md. 137.15 0 0 '0 0 24. Gibson Island, Md. 139.45 7.61 16.07 4.09 0.26 25. Love Point, Md. 11.81 0 3.94 0 0 26. Langford Creek, Md. 1255.20 599.72 586.06 294.89 499.17 27. Centreville, Md. 38.75 0 0 0.52 1.45 28. Washington West, Md.-DC-Va. - 0++ 0 0 0 29. Washington East, DC-Md. - 0 0 0 0 30. South River, Md. 15.14 0 0 0 31. Annapolis, Md. 27.15 0 0.28 0.12 TABLE 4. (continued) QUANDRANGLE 1978 1984 1985 1986 1987 32. Kent Island, Md. 513.68 26.28 48.36 30.80 322.50 33. Queenstown, Md. 492.10 89.45 97.9 36.57 216.74 34. Alexandria, Va.-DC-Md. - 160.40 512.70 495.80 470.96 35. Deale, Md. 61.51 0 2.43 0.57 36. Claiborne, Md.. 421.08 52.25 346.69 165-.06 136.89 37. St. Michaels, Md. 366.09 11.14 223.91 64.03 231.60 38. Easton, Md. 1.19 0 14.33 0 0. 39. Fort Belvoir, Va.-Md. @0.91 1.73 .7.16 19.35 40. Mt. Vernon, Md.-Va. 420.34 857.81- 1080.23 .1056.79 41. Lower Marlboro, Md. 0 0 0 0 42. North Beach, Md. 0 18..88 0 43. Tilghman, Md. 478.15 6.87 253-74 37.48 85.45 44. Oxford, Md. 562.96 23.25 329.10 51.91 5.51 45. Trappe, Md. 64.75 0 33.16 0 46. Preston, Md. - 0 0 0 0 47. Quantico, Va.-Md. 0 6.67 19.23 46.27 48. Indian Head,, Va.-Md. - 0++ 0.21 17.59 49. Benedict, Md. 1.58 0 0 4.23. 1.27 50. Prince Frederick, Md. - 0 0 0 0 51. Hudson, Md. 377.08 4.42 229.75 193`59 167.74 52. Church Creek, Md. 208.94 9.00 322.63 141:52 49.46 53. Cambridge, Md. 48.96 0 0 0 54. East New Market, Md. - 0 0.75 0 55. Widewater, Va. -Md. - 4.59 38.21 39.36 39.17 56. Nanjemoy, Md. . 28.03 30.92 106.68 102.74 108.45 57. Mathias Pt., Md.-Va. 194.12 121.11 228.66 210.70 284.18 58. Popes Creek, Md. - 0 0 0 59. Mechanicsville, Md. 13.62 0 0 7.59 2.08 60. Broomes Island, Md. 4.94 4.37 24.71 4.14 20.20 61. Cove Pt., Md. 2.97 3.75 2.46 0.74 4.62 62. Taylors Island, Md. - 8.55 47.53 12.38 47.47 TABLE 4. (continued) QUANDRANGLE 1978 1984 1985 1986 1987 63. Golden Hill, Md. - 0.42 10.90 1.07 2.53 64. Pas'sapatanzy, Md.-Va. - 0 0 0 0 65. King George, Va.-Md. 2.25 13.44 22.15 22.95 16.10 66. Dahlgren, Va.-Md. 8.32 2.67 1.97 2.41 14.29 67. Colonial Beach North, Md.-Va. 87-44 25.63 15.66 18.42 17.79 68. Rock Pt., Md. 22.85 0 0.27 0 0 69. Leonardtown, Md. 2.44 0 0 0 0 70. Hol.lywood, Md. - 0 0 1.33 4.97 71. Solomons Island, Md. 10.54 0.76 15.52 2.63 8.33 72. Barren Island, Md. - 0 264.99 177.17 269.81 73. Honga, Md. 126.94 5.05 178.58 194.48 632.04 74. Wingate, Md. 2.64 8.81 97.99 90.83 171.97 75. Nanticoke, Md. - 0 0 0 0 76.. Colonial Beach South, Va.-Md. 61.95 11.26 0 0 0 77. Stratford Hall, Va.-Md. 5.53 2.16 0 0 0 78. St. Clements Island, Va.-Md. 0.13 0 0 0 0 79. Piney Point, Md.-Va. - - 0.51 1.51 0 80. St. Marys City, Md. 19.01 16.66 10.48 81. Point No Point, Md. - - 16.50 0 0 82. Richland Pt., Md. 0.73 0.38 24.28 3.76 42.46 83. Bloodsworth Island, Md. 66.07 18.29 285.53 385.28 555.76 84. Deal@Island, Md. 3.01 0 16.65 60.48 60.24 85. Monie, Md. 9.15 0 1.93 18.69 24.60 86. Champlain, Va. - - 0 - - 87. Machodoc, Va. - - 0 0 0 88. Kinsale, Va.-Md. - - 0 0 0 89. St. George Island, Va.-Md. - - 8.82 6.91 5.73 90. Point Lookout, Md. - - 5.76 0.58 0 91. Kedges Straits, Md. 156.09 366.42 474.91 637.99 693.37 92. Terrapin Sand Point, Md. 314.48 187.00 180.48 209.35 93.26 93. Marion, Md. 289.33 0 200.29 243.13 160.14 TABLE 4. (continued) QUANDRANGLE 1978 1984 1985 1986 1987 94. Mount Landing, Va. - - - - - 95. Tappahannock, Va. - - - 96. Lottsburg, Va. - - - 0 - 97. Heathsville, Va.-Md. - - - 0 0 98. Burgess, Va.-@Md. - - - 0 0 99. Ewell, Va.-Md. 1483.30 2308.58 2129.67 2324.36 2012.93 100. Great Fox Island, Va.-Md. 540.65 807.81 1074.25 1362.12 1089.95 101. Crisfield, Va.-Md. 7.48 .113.01 79.22 180.46 123.22 102. Saxis, Va.-Md. - - - 0 103. Dunnsville, Va. - - 104. Morattico, Va. 0 0 105. Lively, Va. 0 0 106. Reedville, Va. 230.40 '108.56 51.17 71 28 87.99 107. Tangier Island, Va. 405.06 614.44 613.55 651.89 499.15 108. Chesconessex, Va. 482.54 808.61 827.28 920.15 911.70 109. Parksley, Va. 80.35 264.80 241.16 318i28 235.80 110. Urbanna, Va. - - - 36.16 111. Irvington, Va. 5.31 .9.33 8'26 7.50 97.34 112. Fleets Bay, Va. 133.23 155.45 120.91 132.88 235.67 U3. Nandua Creek, Va. 184.86 345.10 350 51 375.97 378.70 114. Pungoteague, Va. 401.63 716.76 691:94 706.23 696.73 115. West Point, Va. - - - - 116. Saluda, Va. 0 117. Wilton, Va. 0 0 - 26.75 118. Deltaville, Va. 59 43 6.62 0.70 0.52 18.88 119. Jamesville, Va. 406:04 367.36 327.20 404.46 419.53 120. Toano, Va. - - - - 121. Gressitt, Va. - - - - 122. Ware Neck, Va. 256.00 203.15 171.91 168.59 194.32 123. Mathews, Va. 63.88 30.32 37.39 37.03 58.08 124. Franktown, Va. 504.49 395.26 419.66 441.77 392.70 Ob TABLE 4. (continued) QUANDRANGLE 1978 1984 1985 1986 1987 125. Westover, Va. - - - - - 126. Charles City, Va. - 127. Brandon, Va. - 0 128. Norge, Va. 46.48 46.48** 46.48** 13.66** 0** 129. Williamsburg, Va. - - 130. Clay Bank, Va. - - - 0 131. Achilles, Va. 797.92 741.50 710.16 702.91 755.41 132. New Point Comfort, Va. 1096.31 1092.71 1154.55 1155.33 1048.89 133. Cape Charles, Va. 321.42 308.32 329.48 255.33 266.42 134. Cheriton, Va. 85.20 55..99 63.58 72.74 73.50 Lw 135. Savedge, Va. - - - - - 136. Claremont, Va. - - - - - 137. Surry, Va. - - - - - 138. Hog Island, Va. - - - - - 139. Yorktown, Va. 1.92 0.23 0.21 0.28 0.98 140. Poquoson West, Va. 210.44 216.93 237.70 235.96 290.53 141. Poquoson East, Va. 516.63 687.16 784.53 762.30 752.42 142. Elliotts Creek, Va. 44.58 14.48 8.41 19.91 9.43 143. Townsend, Va. 42.70 4.80 17.72 14.42 11.97 144. Bacons Castle, Va. - - - - - 145. Mulberry Island, Va. - 146. Newport News North, Va. - - - - 0 147. Hampton, Va. 218.25 233.15 287.10 270.40 283.99 148. Benns Church, Va. - - - - 149. Newport News South, Va. 1.87 0 0 - 0 150. Norfolk North, Va. - - - - 0 151. Little Creek, Va. 0 0 - 0 152. Cape Henry, Va. 37.87 36.76 43.31 40.50 153. Chuckatuck, Va. - - - - 154. Bowers Hill, Va. 155. Norfolk South, Va. TABLE 4. (continued) QUANDRANGLE 19.78 1984 1985 1986 1987 156. Kempsville, Va. - 157. Princess Anne, Va. - 158. Wye Mills, Md. - - 159. Bristol, Md. - 2.08 0 160. Fowling Creek, Md. - 0 0 - 161. Port Tobacco,,Md. - 0 1.10 5.64 162. Charlotte Hall, Md. - 0 0 0 163. Mardela Springs, Md. - 0 0 0 164. Wetipquin,.Md. - 0 0 0 165. Selbyville, Md. - - - 0 166. Assawoman Bay, Md. - 0 167. Berlin, Md. 7.06 168. Ocean City, Md. 8.42 169. Public Landing, Md. - - 0 170. Tingles Island, Md. - 852.47 1020.60 171. Girdle Tree, Md.-Va. - 0 172. Boxiron, Md.-Va. - 687.95 664.94 173. Whittington Point, Md.-Va. - 189.94 207.90 174. Chincoteague West, Va. - 0 . 0 175. Chincoteague East, Va. - 0 403.57 401.00 176. Anacostia, D.C.-Md. - - TOTAL SAV - Chesapeake Bay 1-6-,622 .40 M,399.70 0.64 65.44 _77;T19.39 TOTAL SAV - Chincoteague Bay 2,133.93 2,309.92 TABLE 4. (continued) NOTES: - Indicates quadrangle not photographed and assumed to have no SAV. 0 Indicates quadrangle photographed and no SAV noted. Area not flown in 1978 but most likely had SAV in 1978 based on data collected in subsequent years. Area not photographed in 1984 or 1985. We made the assumption that the 1984 and 1985 distributions would be similar to the 1978 distribution. Area was photographed and mapped in 1986. Area was photographed in 1987 and was known to have SAV in 1987 but was not mapped because SAV beds were too narrow and obscured by the shoreline at 1:24000 scale. In 1987 ground truthing revealed narrow beds fringing the shoreline of small tributaries of the Chickahominy River (see map, Appendix C). + Information on SAV distribution taken from 1983 aerial photographs provided by Willie Burton of Martin Marietta Corp. ++ Presence of SAV beds not detected from 1984 aerial photography. Infon-flation provided by Virginia Carter of the USGS for the 1984 Potomac River Shoreline Survey indicated presence of SAV. +++ Aerial photography unavailable in 1986, therefore, SAV acreage data not col 'lected. SAV presence verified by ground truth surveys. See 1986 SAV report (Orth, et. al., 1987) for discussion of Section 2, Upper Eastern Shore, and Section 3, Upper Western Shore, in Results, and maps in APPENDIX C. .... Aerial photography unavailable in 1986, therefore, SAV acreage data not collected. SAV presence verified by ground truth surveys. See 1986 SAV report (Orth, et. al., 1987),for discussion of Section 21, James River, in Results. Presence of SAV beds not detected from 1987 aerial photography. Information provfded by. Linda Hurley of the USF&WS indicated presence of SAV. TABLE 5. NUMBERS OF HECTARES OF BOTTOM COVERED WITH SUBMERGED AQUATIC VEGETATION IN 1987 FOR SECTIONS WITHIN THE THREE ZONES OF THE CHESAPEAKE BAY AND IN CHINCOTEAGUE BAY. (Section boundaries redefined for 1987. See Figure 5, Table 3 and Appendix B for boundary locations.) Zone Se c t i, on: AREA 40 (HECTARES) 1. Susquehanna Flats 2,219 Upper 2. Upper Eastern Shore 103 3. Upper Western Shore 117 4. Chester River 515 Zone Total 2,954 ---------------------------------------------------- 5. Central Western Shore 0 6. Eastern Bay 900 7. Choptank River @356 Middle 8. Patuxent River 41 9. Middle Western Shore 0 10. Lower Potomac River 458 11. Upper Potomac River 1,655 12. Middle Eastern Shore 1 )527 13. Mid-Bay,'Island Complex 4,265 Zone Total 9,202 - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -7 14. Lower Eastern Shore 4,036 15. Reedville 324 Lower 16. Rappahannock River Complex 208 17. New Point Comfort Region. 238 18. Mobjack Bay Complex 1,227 19. York River; 608 20. Lower Western IShore 1,322 21. James River 0 Zone Total 7,963 ---------------------------------- 7 ------------------ TOTAL SAV FOR CHESAPEAKE BAY 20,119 TOTAL SAV FOR CHINCOTEAGUE BAY 2,301 --------- ------------------------------------------ 38 TABLE 6. NUMBER OF SQUARE METERS OF SAV IN 1987 FOR EACH QUADRANGLE CONTAINED WITHIN THE 21 SECTIONS OF THE CHESAPEAKE BAY AND.FOR CHINCOTEAGUE BAY. MAP CODE NUMBERS FROM TABLE 2 IN PARENTHESES. SECTION QUADRANGLE AREA Susquehanna Flats - 1 Conowingo Dam (1) 0 Aberdeen (2) 41,803 Havre de Grace (3) 18,578,920 North East (4) 3,414 Elkton (5) 0 Perryman (8) 0 Spesutie (9) 3,566,251 Earleville (10) 0 22,187,300 sq.m 2,218.73 hectares 5,482.48 acres Upper Eastern Shore 2 North East (4) 56,482 Elkton (5) 0 Perryman (8) 0 Spesutie (9) 225,071 Earleville (10) 46,884 Cecilton (11) 0 Gunpowder Neck (14) 0 Hanesville (15) 423,504 Betterton (16) 198,125 Galena (17) 75,689 Swan Point (20) 0 Rock Hall (21) 0 1,025,740 sq.m 102.57 hectares 253.47 acres Upper Western Shore 3 White Marsh (6) 0 Edgewood (7) 5,175 Perryman (8) 29,281 Spesutie (9) 4,792 Baltimore East k12) 0 Middle River (13) 220,435 Gunpowder Neck (14) 905,434 Hanesville (15) 0 Curtis Bay (18) 0 Sparrows Point (19) 0 Swan Point (20) 0 Round Bay (23) 0 Gibson Island (24) 2,581 continued 39 TABLE 6. ('continued) Upper Western Shore 3 (continued) Love Point (25) 0 1,167,700 sq.m 41 .116.77 hectares 288.54 acres Chester River 4 Betterton (16) 0 Galena (17) 0 Swan Point (20) 16,049 Rock Hall (21) Chestertown (22) 0 Love Point (25), 0 Langford Creek (26) 4,991,752 Centreville 27) 14,474 Kent Island @32) 0 Queenstown (33) 74,591 40 5,150,020 sq.m 515.00 hectares 1,272.57 acres Central Western Shore 5 Curtis Bay (18) 0 Round Bay (23) 0 Gibson Island@' (24) 0 South River (30) 0 Annapolis (31). 0 Deale (35) 0 North Beach (42) 0 0sq.m 0hectares 0acres Eastern Bay 6 Annapolis @31) 0 Kent Islan (32) 3,225,038 Queenstown (33) 2,092,820 Claiborne (36) 1,368,954 St. Michaels (37) 2,315,957 Easton (38) 0 Tilghman (43) 0 Oxford (44) 0 9,002,720 sq-m 900.27 hectares 2,224.57 acres' continued 40 TABLE 6. (continued) Choptank River 7 Claiborne (36) 0 St. Michaels (37) 0 Easton (38) 0 Tilghman (43) 854,462 Oxford (44) 55@139 Trappe (45) 0 Preston (46) 0 Hudson (51) 1,677,407 Church Creek (52) 494,585 Cambridge (53) 0 East New Market (54) 0 Taylors Island (62) 474,703 Golden Hill (63) 0 Fowling Creek (160) 0 3,556,280 sq.m 355.63 hectares 878.76 acres Patuxent River 8 Deale (35) 0 Lower Marlboro (41) 0 North Beach (42) 0 Benedict (49) 12,655 .10 Prince Frederick (50) 0 Mechanicsville (59) 20,782 Broomes Island (60) 202,040 Cove Point (61) 46,206 Hollywood (70) 49,740 Solomons Island (71) 83,334 Bristol (159) 0 414,758 sq.m 41.47 hectares 102.49 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. Marys City (80) 0 Point No Point (81) 0 Richland Point (82) 0 continued 41 TABLE 6. (continued) 0 Middle Western Shore 9 (continued) Point Lookout (90) 0 0 sq.m 0 hectares 0 acres Lower Potomac River 10 Nanjemoy (56) 1,084,509 Mathias Point (57) 2,841,829 Popes.Creek (58) 0 lift Mechanicsville (59) 0 King George (65) 124,893 Dahlgren (66) 142,880 Colonial Beach North (67) 177,861 Rock Point (68) 0 Le:onardfown (69) 0 Hollywood (70) 0 Solomons Island (71) 0 Colonial Beach South (76) 0 Stratford Hall (77) 0 St. Clements .Isl,and (78) 0 Piney Point (79) 0 St. Marys City (80) 104,834 Machodoc (87) 0 Kinsale (88) 0 St.',beo'rge Island (89) 57,317 Point Lookout (90) 0 Lottsburg (96) 0 Heathsville (97) 0 Burgess (98) 0 Port Tobacco (161) 47,515 Charlotte Hall (162) 0 4,581,660 sq.m 458.17 hectares 1,132.13 acres Upper Potomac River 11 Washington West (28) 0 Washington East (29) 0 Alexandria (34) 4,709,559 Fort Belvoir (39) 193,510 Mt. Vernon (40) 10,567,873 Quantico (47) 462,680 continued 42 41 TABLE 6.*, (continued) Upper Potomac River 11 (continued) Indian Head (48) 175,902 Widewater (55) 391,663 Nanjemoy (56) 0 Mathias Point (57) 0 Passapatanzy (64) 0 King George (65) 36,080 Dahlgren (66) 0- Port Tobacco (161) 8,868 16,546,000 sq.m 1,654.60 hectares 4,088.52 acres Middle Eastern Shore 12 Taylors Island (62) 0 Golden Hill (63) 25,312 Barren Island (72) 2,698,140 Honga (73) 6,320,436 Wingate (74) 1,719,705 Nanticoke (75) 0 Richland Point (82) 424,582 Bloodsworth Island (83) 631,752 Deal Island (84) 602,364 Monie (85) 245,963 Terrapin Sand Point (92) 116,443 Marion (93) 1,601,402 Great Fox Island (100) 405,412 Crisfield (101) 474,794 Mardela Springs (163) 0 Wetipquin (164) 0 15,266,300 sq.m 1,526.63 hectares 3,772.30 acres Mid-Bay Island Complex 13 Richland Point (82) Bloodsworth Island (83) 4,925,260 Deal Island (84) 0 Kedges Straits (91) 6,933,686 Terrapin Sand Point (92) 816,166 Ewell (99) 20,129,335 Great Fox Is. (100) 5,070,650 continued 43 TABLE 6. -(continued) Mid-Bay Island Complex 13 (continued) Tangier Island (107) 4,776,080 42,646,200 sq.m 4,264.62 hectares 10,537.88 acres Lower Eastern Shore 14 Great Fox Island(100) 5,423,941 Crisfield 757,425 Saxis (102@101) 0 Tangier Island (107) 215,117 Chesconessex (108) 9,117,026 Parksley (109) 2,358,039 Nandua Creek (113) 3,787,050 Pun66teague (114) 6,967,337 Jamesville (119) 4,195,310 Franktown (124) 3,927,005 SO Cape-Charles (133) 2j664,183 Cheriton (134) 735,Q50 Elliotts Creek (142) 94,300 Townsend (143) 119,663 40,362,000 sq.m 4,036.20 hectares 9,973.45 acres Reedville 15 Heathsville (97) 0 Burgess (98) 0 Reedville (106) 879,860 Irvington (111) 0 Fleets Bay (112) 2,356,672 3,236,500 sq.m 323.65 hectares, 574.88 acres Rappahannock River Complex 16 Tappahannock (95) 0 Dunnsville (103) 0 Morattico (104) 0 Lively (105) 0 Urbanna (110) 361,581 Irvington (111) 973,454 Fleets Bay (112) 0 Saluda (116) 0 Wilton (117) 267,491 Deltaville (118) 188,821 Ware Neck (122) 0 41 continued 44 41 TABLE 6. (continued) Rappahannock River Complex - 16 (continued) Mathews (123) 285,143 2,076,490 sq.m 207.65 hectares 513.10 acres New Point Comfort Region - 17 Mathews (123) 0 New Point Comfort (132) 2,384.410 2,384,410 sq.m 238.44 hectares 589.19 acres Mobiack Bay Complex 18 Ware Neck (122) 1,943,175 Mathews (123) 295,692 Achilles (131) 5,133,250 New Point Comfort (132) 4,902,160 12,274,200 sq.m 1,227.42 hectares 3,032.95 acres York River 19 Toano (120) 0 Gressitt (121) 0 Williamsburg (129) 0 Clay Bank (130) 0 Achilles (131) 2,420,750 New Pt. Comfort (132) 3,196,458 Hog Island (138) 0 Yorktown (139) 9,776 Poquoson West (140) 452,685 Poquoson East (141) 0 6,079,660 sq.m 607.97 hectares 1,502.28 acres Lower Western Shore 20 Poquoson West (140) 2,452,510 Poquoson East (141) 7,524,160 Elliotts Creek (142) 0 Newport News North (146) 0 Hampton (147) 2,839,868 Norfolk North (150) 0 continued 45 TABLE 6. (continued) Lower Western Shore 20 (continued) Little Creek (151) 0 Cape Henry (152) 405,040 Kempsville (156) 0 Princess Anne (157) 0 13,222,100 sq.m 1,322.21 hectares 3,267.18 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 Bacons Castle (144) 0 Mulberry Island (145) 0 Newport News North (146) 0 Hampton (147) 0 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 0 sq.m 0 hectares 0 acres continued 46 TABLE 6. (continued) Chincoteague Bay Berlin (167) 70,564 Public Landing (169) 0 Tingles Island (170) 10,205,999 Girdle Tree (171) 0 Boxiron (172) 6,649,380 Whittington Point (173) 2,079,020 Chincoteague West (174) 0 Chinoteague East (175) 4,010,000 23,014,963 sq.m 2,301.50 hectares 5,687.00 acres 47 SECTION 4 41 RESULTS 1. SUSQUEHANNA FLATS There were 2219 hectares pf SAV in the Susquehanna Flats section in 1987 (Tables 4-6, Fig. 8). SAV beds were located principally in two main areas: 1. moderate to dense fringing beds in the Susquehanna River 0 consisting primarily of M. spicatum, with P. pectinatus, C. demersum, V. americana and N. guadalupensis in lesser amounts from Robert, Wood and Spencer Islands 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 patchy SAV located in the broad shoal area at the river mouth. This broad shoal consisted primarily of small patches of M. spicatum, with P. pectinatus, C. demersum and quadalupe6sis. A total of nine species spicatum, H. dubia, V. americana, H. verticillata, @@. demersum, P. pectinatus, N. quadalupensis, E. Perfoliatus, and aij@ spp.) have been reported either by Stan Kollar of Harford Community College or the citizens' field survey. SAV beds consisted of up to six species, with M. spicatum being dominant. H. dubia, V. americana, H. verticillata and C. demersum also occurred in significant abundance. The total SAV abundance in this section has remained relatively stable since 1984, although beds in the river portion have increased in density. SAV is virtually absent from Mill Creek, Furnace Bay, Northwest River, Swan Creek, Spesutie Island and western Elk Neck. The charterboat captain. survey located only several small beds of M. spicatum in the Northeast River, including two SAV beds identified from aerial photographs. 48 3937. 5- 1 T-- ... I I I I I I I I rT-r- P 10 03 HAVRE DE G5ACE S QUEHAN 3930.0 FLATS SWAN CUE& ESUTIE SLAND -Fie 3922.5 @11 N I I I 1 -111 llkforl III UA 0 UI) 0 LO 0 0 LO LO U') U") Figure 8. Distribution of SAV in Susquehanna Flats (Section 1). 77-, @ OU EHAN TS s I' @FLA 4 ES UT IE SLAND f vrD\c 49 2. UPPER EASTERN SHORE There were 103 hectares of SAV mapped for the Upper Eastern Shore section in 1987 (Tables 4-6, Fig. 9), consisting of sparse to moderately dense, small beds. Principal locations of beds were in the lower Elk River, Swan Creek, lower Sassafras River, Stillpond Creek, and the mouth of Churn Creek. Very little SAV was mapped in the Bohemia River and along the mainstem of the bay from Stillpond Creek to Swan Point. This section has contained relatively little SAV since the baywide SAV survey began in 1978, although, historically, this section has contained abundant SAV. M. spicatum and V. americana were the two most commonly reported species, with six other species reported in lesser amounts as determined by the citizen and charterboat captain surveys. 50 3945. OAj 3937. 5 3930.0 f IA R. SASSAFRA,:z ha@- W" 3922.5 -TC ArQ .F- PO Ze-%" 3915. 0 r SWAN P 3907. 51-1111111111 111 iCil dL In 0 Ln 0 In 0 In In C14 .4- (0 CO (0 LO LID Figure 9. Distribution.of SAV in Upper Eastern Shore (Section 2).. @S PWA "N 51 3. UPPER WESTERN SHORE There were 117 hectares of SAV mapped from the aerial photographs in 1987 for the Upper Western Shore section (Tables 4-6, Fig. 10). SAV beds were concentrated in the Bush, Gunpowder, and Middle River areas and in Saltpeter and Seneca Creeks. Very little SAV was reported in the Back, Patapso, and Magothy Rivers. M. spicatum and V. americana were the two most abundant species as reported by the citizen and charterboat captain surveys, with E. canadensis, Z. palustris, P. pectinatus, E. canadensis, P. perfoliatus and C. demersum being occasionally reported. The amount of SAV reported for 1987 is less than previous years. SAV in this section appears to be quite dynamic, with potential for the many small areas that only are reported in the ground truth surveys to rapidly expand if water quality conditions improve. 52 3930.0 1 L C) 3922. 5 3915. 0 @-n 3907. 5 3900. 0 fu I 1@1 I I IIIIIIIIIIIIIJI I 1111111111114 LO Ln 0 Ln 0 Ln Cq LO PO Figure 10. Distribution of SAV in Upper Western Shore (Section 3). 53 4. CHESTER RIVER There were 515 hectares of SAV in the Chester River section in 1987 (Tables 4-6, Fig. 11). Most of the SAV was located adjacent to Eastern Neck and Eastern Neck Island, and in the Chester River. Dense beds were found in Grays Inn and Langford Creeks off the Chester River. The remainder of Chester River, including the area adjacent to Kent Island, was relatively unvegetated. Additional beds are found in Swan and Huntingfield Creeks, located above Eastern Neck on the Chesapeake Bay. Six species of SAV were reported from this section in 1987 by the citizen and charterboat captain surveys. R. maritima was by far the most abundant species in this section with P. pectinatus, P. perfoliatua, spicatum, E. canadensis, and Z. palustris being reported less frequently. The Chester River area, historically, supported some of the most dense and diverse stands of SAV in the middle reaches of the bay (some of which are still present today). 5. CENTRAL WESTERN SHORE There was no SAV observed.from the aerial photography in the Central Western Shore section in 1987 (Tables 4-6, Fig. 12). In fact, this area has had very little SAV since 1984. Although not evident in the aerial photography, the citizens' survey reported SAV in the Deale and South River quadrangles, with R. maritima and Z. palustris found in Deale and Z. palustris found in South River. Z. palustris has been reported from the headwaters of the Magothy, Severn and South Rivers (F. Dawson, pers. comm.). 54 3915. 0 3907. 5 GRAYS INN _41 clyt 3900. 0 3852. 5 U') Lr) 04 LO 0 Figure 11. Distribution of SAV in Chester River (Section 4). VT 55 3907.5) 1 1 1 1 TV F I 3900.0 -4 RHODE R. 3852.5 0 3845.0 3837.5 1 1 1 1 1 1 04 1 1 1 Ln LO 0 t 0 04 L0 Figure 12. Distribution of SAV in Central Western Shore (Section 5). 56 6. EASTERN BAY There were 900 hectares of SAV identified from the Eastern Bay section in 1987 (Tables 4-6, Fig. 13). SAV occurred as mostly sparse to dense beds throughout this section and is the most that has been observed since 1978. The large increase in SAV abundance from 1986 may represent an artifact of the aerial photographs, since SAV was reported throughout this section by the charterboat captain survey in 1986. In 1987, the SAV was identified as being particularly abundant along both shorelines in Crab Alley Bay, Prospect Bay, 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. R. maritima is, by far, the most abundant species as reported by both the citizens and charterboat captain surveys, with only one other species, P. perfoliatus, reported once from the Eastern Bay region. There are numerous reports of R. maritima in areas where beds were not identified from the photographs. These sightings probably represent areas that are sparse and patchy and would not show up on the imagery. Therefore, estimates may be low. 57 3900, 0--Ij, I I @U-kA I III i@ARSON ISL. 3852. 5 /V 4@ A@; %P lp 0 3845. 0 ILGHMAN ISL. A 3837. 5 0 Ln 0 U-) N LO 04 0 (0 (0 r- Figure 13. Distribution of SAV in Eastern Bay (Section 6). IT 58 7. CHOPTANK RIVER There were 356 hectares of SAV observed in the Choptank River section in 1987 (Tables 4-6, Fig. 14). Most of the SAV occurred in sparse to dense beds in only a few areas. These were principally along the eastern side of Tilghman Island, the lower portion of Harris Creek, the mouth of Chapel Creek, Cook Point Cove, Covey Creek, Brannock Bay, and Cators Cove. There was almost 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. R. maritima was found by HPEL personnel behind Hambrooks Bar near Cambridge, and in front of the Horn Point Laboratory boat basin. Z. palustris grew in Dickerson Bay, Trappe Creek, Bolingbroke Creek and Foxhole Creek in the early part of the growing season. Ground surveys in the river by citizen and charterboat captain surveys, as well as scientists from the University of Maryland's Horn Point Environmental Laboratories, located four species of SAV in this section, with R. maritima being the most prevalent. P. pectinatus and Z. palustris was observed in scattered locations, while Z. marina was reported at only one location. R. maritima was reported from a number of areas in this section that did not appear to have SAV from the aerial photographs. 59 3852. 5- 111111111 11111911@@ ITIII IIIII 3845.0 1VU -C ILGHMAN 3837.5 Ol BRANNOCK BAY 4" 3830. 0 Ad 3822, 5 In LO 0 LO tl- 0 0 tl- I T "N 0 C 4K Y Figure 14. Distribution of SAV in Choptank River (Section 7). 60 8. PATUXENT RIVER There were 41 hectares of SAV reported in the Patuxent River section in 1987 (Tables 4-6, Fig. 15). SAV in the Patuxent River has always been at very low levels of abundance and has not exceeded 50 hectares in any year since the baywide effort began in 1978. There were sporadic sightings of four SAV species in the Patuxent River by citizens and charterboat captains. Those species reported were: Z. palustris, P. pectinatus, M. spicatum, and R. maritima. 9. MIDDLE WESTERN SHORE There were no SAV beds identified in the Middle Western Shore section, in 1987 (Tables 4-6, Fig. 16). Four species cited by the citizens' survey (R. maritima, C. demersum, Z. valustris, P. pectinatus) occurred on the St. Marys quadrangle. Most of the area in this broad section of the bay is of high energy, exposed beaches that are unsuitable for SAV growth. We would therefore not expect large expanses of SAV, rather only small pockets of SAV in creeks or ponds that empty into the bay. Previous surveys have reported no more than 23 hectares of SAV. 61 (A (A L4 01) OD OD Ul 0 Ln 7645. N 1111111111fill I I I I I I I I I I L I I 7637.5 7630. 0 /7::NV co 7622-51- 1 1 1 1 3845.0 3837. 5 3830. 0 3822. 5 3815. 0 3807. 5 3800. 0 Ln 0 LO Ln LO rn (0 to (0 CD P- r@ 1-1 t- Figure 16. Distribution of SAV in Middle Western Shore (Section 9) -7 V, 'kt' 63 10. LOWER POTOMAC RIVER There were 458 hectares of SAV identified in the Lower Potomac River section from the 1987 aerial photography (Tables 4-6, Fig. 17). Most of the SAV in this section occurred in the region near the Rt. 301 bridge, in Nanjemoy and Port Tobacco Creeks and in the shoreline adjacent to these two creeks. A majority of SAV beds were moderately to densely vegetated. SAV beds were identified as fringing along the eastern side of Mathias Point Neck to the Rt. 301 bridge. Several small beds were observed in Machodoc and Cuckhold Creeks, just below the Rt. 301 bridge. The USGS survey found V. americana to be the most common species here, with M. spicatum, P. perfoliatus, P. pectinatus, C. demersum, and Z. palustris also being reported (see quadrangles in Appendix C for USGS species information). Citizen volunteers reported many of these same species. SAV was absent in the remainder of this section from just below the Rt. 301 bridge to the river mouth except for small but moderately dense beds in and adjacent to the St. Marys River. Citizen survey observations indicate that R. maritima was the only species present here. 64 3830. Od L1111111111111 X111111111 11 111111111 HE 117111 11111111 1111111111111 1111111111111J. P(RT TOBACCO RIVER :NA E@ Y REEK *Z7 --\WICOMICD 3822.5 3815. 0 POTOMAT RIVER 3807.5 it - Q@l 3800.0 3752. 5 0 LO 0 LO 0 LO 0 LO 04 LO r*l 0 N U') -q- V) K) N Figure 17. Distribution of SAV in Lower Potomac River (Section 10). 65 11. UPPER POTOMAC RIVER There were 1,655 hectares of SAV mapped in the Upper Potomac River section from the 1987 aerial photographs (Tables 4-6, Fig. 18). The area of the river between Marshall Hall and the Woodrow Wilson bridge was very densely vegetated, with H. verticillata being by far the dominant species here. Although the total abundance of SAV in this section had not changed as dramatically in the last three years as before that time, SAV continued to be observed further down river in smaller, but densely vegetated beds. H. verticillata is found down to Quantico and Mallows Bay. Numerous SAV species were present, with M. spicatum, C. demersum, H. dubia, R@@ spp. and V. americana being reported most commonly in this region, while Z. palustris, P. pectinatus and N. guadalupensis were reported less frequently. Results from the USGS survey of this region were very similar to the data collected from the aerial photography (Rybicki, et al., 1988) (Figs. 19, 20). Species information from the USGS survey can be found on the topographic quadragles located in Appendix C. Their survey continued to confirm aerial photographic observations of the absence of SAV from Occoquan Bay south to Quantico. SAV was present around Quantico but, except for a few scattered beds, is absent along the western side of the river from Quantico south to Mathias Point Neck. 66 3852- 5-11,11,1111,11, 3845.0 tj .15C C?,E 3837. 5 lol- ATIAWOMAN WA 0 CFEEK CREEK 3830.0 NJEMOY AQJIA TR. CREEK 3822. 5 V% 3815. O@1- 0 LO 0 0 lp, Mpg, @/ANJE CREE@@ 0 Figure 18. Distribution of SAV,in Upper Potomac River (Section 11). 67 77015' 770 390 WASHINGTON, D.C. Chain Bridge EXPLANATION Percent cover of hydrilla in vegetated areas. >95 071-95 National EM 31-70 Airport EM 1-30 Alexandria ED o Woodrow Wilson Bridge VIRGINIA 38045' Dyke Marsh Gunston Dogue Cr 0 piscataNN81 Cove Marshall Hall ccoquan Bay MARYLAND Indian Head Cr 40 Quantico Mallows Bay 0 5 10 MILES 0 5 10 KILOMETERS Figure 19. Percent cover of Hydrilla in vegetated areas in the tidal Potomac River in 1987. 6.8 .4 77015' 770 390 WASHINGTON, D.C. Chain Bridge EXPLANATION Percent cover of submersed aquatic vegetation. 070-100 National .0 iffl 40-70 Airport 10-40 1-10 Alexandria Woodrow a Wilson Bridge VIRGINIA 38046' Dyke Marsh Gunston Dogue Cr piscatawal C( Cove 0 Marshall Hall ccoquan Bay MARYLAND Indian Head Cr Quantico 0 5 10 MILES Mallows: Bay I I 0 5 10 KILOMETERS Figure 20. Percent cover of submersed aquatic vegetation in the tidal Potomac River in 1987. 69 12. MIDDLE EASTERN SHORE There were 1,527 hectares of SAV identified in the Middle Eastern Shore section (Tables 4-6, Fig. 21). For this report this section has been reorganized as indicated earlier, with boundaries given in Table 3. It now excludes South Marsh and Bloodsworth Islands and includes the Big and Little Annemessex Rivers. SAV beds were very abundant in: 1. the lower Honga River adjacent to Middle Hooper Island, Wroten Island, Parks Neck, and Asquith Island; 2. between Barren Island and Meekins Neck-Upper Hooper Island; and 3. the lower Manokin and the Big and Little Annemessex Rivers. Little SAV was observed in Fishing Bay, the Nanticoke and Wicomico Rivers. R. maritima was the predominant species found by the citizen and charterboat captain surveys. They included reports from many areas that were not identified in the aerial photography. SAV in this section has undergone a very large increase since first observed in 1984 due to the rapid spread of R. maritima. Z. marina, the only other species found, was reported from one location in the Big Annemessex River. 70 3830. 0 3822. 5 0 A lz@, VCR Al 38,15.0 ;;F @ BLOODSWCR TH ISLAND 3807.5 SOUTF MARSH-qW ISLAN ovA 3800.0 SMITF ISLAND LI TLE ANY MESSE R R J 3752. 5-@LU- 0 LO 0 04 LO r- 0 N in C14 - 0 0 In .t (0 (0 (0 LO in Figure 21. Distribution of SAV in Middle Eastern Shore (Section 12). V4. @@C R BLOODSWC 71 13. MID-BAY ISLAND COMPLEX There were 4,265 hectares of SAV mapped in the Mid-Bay Island Complex in 1987 (Tables 4-6, Fig. 22). This section's boundaries have been revised from the earlier surveys and now include Bloodsworth and South Marsh Islands, but exclude the area from the Big Annemessex River to Chesconessex Creek. 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. Shoal areas inside these two islands also were densely vegetated. SAV continued to increase in abundance around Bloodsworth and South Marsh Islands. Only R. maritima ha d been reported by the charterboat captain survey around these islands. 14. LOWER EASTERN SHORE There were 4,036 hectares of SAV observed in the Lower Eastern Shore section in 1987 (Tables 4'6, Fig. 23). This section has been revised for the 1987 report. It now includes the area from just above Great Fox Island to Chesconessex Creek which had been part of Section 13. Large dense beds of Z. marina and R. maritima continue to persist at the mouth of Cherrystone Inlet near Cape Charles, at the mouths of Hungars Creek, Mattawoman Creek, Occahannock Creek, Craddock Creek, Pungoteague Creek, Onancock Creek, and Chesconessex Creek, 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 Islands. Those areas between the above mentioned creeks were sparsely vegetated. This was due largely to the dynamic and 72 3815.0-_11111 1 _11111 lea 3807. 5 SOU H MARSH IS AND 3800. 0 SMITH SLAND 3752.5 TA GIER ISLAND 3745. J1 111111111111 1111 111111111 111 ilill U') 0 0 0 LO (0 U') Figure 22. Distribution of SAV in Mid-Bay Island Complex (Section 13). SL Sk 73 3800. O@@ z GREAT 3752. 5 isL. RS 3745.0 NCO z CREEK GOU GUE CRI:K 3737. 5 A-d-14. A z OC HA Cc .PO, z K4 3730.0 NGAV REEV 0 7- 3722. 5 @APE 3715.-0 (VARL 3707. 5 z 3700. 0*11111111111111 Jill 1111111,11111111111111,11111111111 111111 LO 0 to 0 LO 0 U') 0 cli Ln Pl 0 0 Ln 't to fn C4 (0 Ln U") Ul in LO r- rl- r- r- tl- r- Figure 23. Distribution of SAV in Lower Eastern Shore (Section 14). r G JEA L'RSE 74 14. LOWER EASTERN SHORE (continued) exposed nature of these sites. There was very little SAV in the Pocomoke Sound area, and there was no SAV south of Old Plantation Creek just below Cape Charles. 15. REEDVILLE There were 324 hectares of SAV identified in the Reedville section in 1987 (Tables 4-6, Fig. 24). SAV beds consisted of sparse to moderately dense beds of R. maritima and Z. marina, as noted by the citizens' survey. Most were found in Little Bay, Dymer Creek, Indian Creek, Ball Creek, Dameron Marsh, Fleeton Point and Taskmasker Creek. 16. RAPPAHANNOCK RIVER COMPLEX There were 208 hectares of SAV observed in the Rappahannock River Complex in 1987 (Tables 4-6, Fig. 25). This was a significant increase from that reported in the last three annual surveys and was a result of the rapid spread of R. maritima into both the Rappahannock and Piankatank Rivers. In particular, dense beds of R. maritima were found in the Corrotoman River where little SAV was found prior to 1987. R. maritima was present in small scattered beds throughout these two systems, many of which did not appear on the aerial photography. A dense SAV bed consisting of R. maritima at the mouth of Carter Creek off the Rappahannock River, and a small dense bed of R. maritima and Z. marina off Willis Wharf, and on both sides of the Hole in the Wall in Milford Haven, continued to persist. 75 3752, 5+ LEETON PT. MARSH k,4 3745.0 FLEETS BAY 3737. 5 LO LO 0 (0 r- Figure 24. Distribution of SAV in Reedville (Section 15)., 76 3745-0--1 111 IIIIIIII142-L/;,1111 11 1 111 1 11 1 1 1 W,@4 j C I I I ACORROTOMAN R AR ER CR 3737. 5 -Sr1t\ RAPPAJANNOCK -4o P A%ATANI@ -V. NN- 3730. 0 3722. 5 tn LO ro (0 (0 (0 Figure 25. Distribution of SAV in Rappahannock River Complex (Section 16). 77 .16. RAPPAHANNOCK RIVER COMPLEX (continued) Z. marina was present in very small patches off Parrott Island in the Rappahannock River, Milford Haven and Burton Point in the Piankatank River. This vegetation is the result of successful transplant efforts by VIMS scientists. 17. NEW POINT COMFORT REGION There were 238 hectares of SAV identified in! the New Point Comfort Region in 1987 (Tables 4-6, Fig. 26). SAV consisted of sparse to dense beds of Z. marina and R. maritima between New Point Comfort and just north of Horn Harbor. 1$. MOBJACK BAY COMPLEX- The Mobjack Bay Complex contained 1,227 hectares of SAV in 1987 (Tables 4-6, Fig. 27). This section has also been revised from the 1986 report. The boundary between this section and the York River section (19) is now a line bisecting the large shoal off@the Guinea Marsh area. Moderate to dense SAV beds, consisting of Z. marina and R. mariiima, were most abundant along the entire shoreline of the Mobjack Bay as well as in three of four tributary rivers: Severn, Ware and North. Several small beds of R. maritima were observed within the East River. The Mobjack Bay area continued to harbor some of the more extensive SAV beds on the western shore of the lower Chesapeake Bay. 78 37,30. 0+ + JA 37:22. 5 cRN HARBOR MOBJACK BAY NEW POINT COMFO 3715. 0+ LO LO 04 LO to Figure 26. Distribution of SAV in New Point Comfort (Section 17). 0, C K@k@ y NE W FO@INT@ COMF0 79 3730. 0, A/oj?Tj, AST R. 3722. 5 MOBJACK BAY SEVERN R. RCWN'S Ay OP GUINEA MARSH 3715. 0 Ln 0 Ln C14 Figure 27. Distribution of SAV in Mobjack Bay Complex (Section 18). 80 19. YORK RIVER There were 608 hectares of SAV observed in the York River section in 1987 (Tables 4-6, Fig. 28). This.'section has also been revised from the 1986 report. The boundary between this section and the Mobjack Bay section (18) is now a line bisecting the large shoal off the Guinea Marsh area. Moderate to 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. The only beds present along the south shore were located on the north side of Goodwin Islands. SAV beds were absent upstream of,Gloucester Point except for small (<I m2) patches of Z. marina at Little Mumfort Island on the north.,shore, and just below the Naval Weapons Station on the south shore. These were transplanted in 1985 and 1986 and have persisted through 1987- The SAV'beds planted in 1982 and 1983 at Gloucester Point continue to thrive in 1987,,similar to many naturally expanding beds along the north shore@. 20. LOWER WESTERN SHORE There were 1,322 hectares of SAV mapped in the Lower Western Shore section in 1987 (Tables 4-6, Fig. 29). SAV beds', consisting of Z. marina and R. maritima, remained as dense beds in Broad Bay, Back River, Drum Island Flats and on 'ihe south side of Goodwin Island. No SAV was present in the southwest and northwest branches of ;Back River, or in the Poquoson River, Chisman Cre'ek'and Back Creek. 81 3722. 5-- CL AY BANK MOBJACK BAY GUINEA MARSH 3715. 0 )K IS'L". 3707. 5* Ln Ln 0 Cli (0 LO (0 Figure 28. Distribution of SAV in York River (Section 19). 82 3715. 0-1 1 1 1-1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1- 1 1 1 1 1 1 1 1 1 1 1\1 1, T --GOODWIN ISL. C-1 DRUM ISLAND EOQU So R FLATS 3707. 5 -BACK RIVER 3700. 0 ROAD- BAY-- 3652. 0 Ln LO 0 0 Ln 0 Figure 29. Distribution of SAV in Lower Western Shore (Section 20). 83 21. JAMES RIVER The mainstem James River and tributaries emptying into the James remained, for- the,most part, unvegetat,ed in 1987 (Tables 4-6, Fig. 30). A 0 small section @f the Chickahominy that was identified as having SAV in 1987 was photographed. It' included Gordon and Nettles Creek, and Nayses Bay. The photography showed SAV beds' as occur Iring in similar locations to previous aer ial surveys, indicating that these beds appear to be relatively stable. However, SAV beds were not mapped. Many of the observed beds occurred in small creeks and on a.topographic quadrangle were represented by a thin line. Tracing and digitizing a single line rather than a polygon sha ped bed would :h;ave resulted in large errors, thereby compromising our dQ\ quality control stan'd4'rids. Ground survey information from a graduate 4W student of the University of Virginia, and from several citizens indicated fringing SAV beds consi@ ting of N. M@J@�r, N. guadalupensis, C. demersum and palustris in Sunken Marsh, Morris Creek add the Chickahominy main stem, 0 on the Brandon quadrangle. SAV species are probably distributed throughout the Chickahominy R,iver system, occupying the fringes of many tidal creeks. 84 L4 L'i (A -4 -4 -lj Ln Q 0 N) Ln 0 Ln L" C) Ln 0 C) Ln 7722.5 11111111111111 r un CD 7715. 0 7707. 5 V) Cl+ cr a 7700.0 C+ 0 0 .-:b 7652. 5 OD Ul 7645.0 C@ lw (D V) ;o 7637. 5 rl 7630. 0 lo C-V (D 0 7622.5 "ikdw P413 7615.0 7607.5 22. CHINCOTEAGUE BAY There were 2,301 hectares of,SAV identified in the Chincoteague Bay section in 1987 (Tables 4-5, @Fig. 31)., Beds were mostly of moderate to dense coverage with Z. marina predominating in the southern part of the bay and R. maritima in the northern half. All of the SAV was found on the eastern side of the bay west of Assateagpe Island in water depths of less than 1 meter (MLW).' The vegetation@was concentrated in four relatively distinct areas identical to that reported in the 1986 survey. They were located west of the northern end of Chincoteague Island, and west of West Bay, Green Run Bay, and the Tingles Island area. The increase in SAV in 1987 from 1986 was a.rdsult of,AdditiQnal SAV being mapped in the middle and upper sections of;'Sinepuxent Bay which were not flown in the 1986 survey. It is ltkely that@ these beds were present in 1986. Thus, this region appears to have remained quite stable over the past several years, with little expansion obserVed@ in the other southern, oceanside lagoonal systems. 86 75* 30' 75' 15' isle of M ht ay ocean City 380 38' 15' A 5' Ti Is an Gr Ru d A TLANTIC OCEAN West 38' 38' 75' 30' 75' 15' Figure 31. Distribution of SAV in Chincoteague!Bay. 87 SECTION 5 HISTORICAL TRENDS SAV in the Chesapeake, Bay has', undergone rapid fluctuations in distribution and abundance in the recent past (Orth and Moore, 1981, 1983, 1984). Although,' overall, there is currently much less SAV baywide than in the recent post, patterns of change have varied from region to region within the bay. jn order to assess'these changes from an historical perspective, it is critical to have long term data on distribution of SAV including species presence or absence and the size of individual SAV beds in specific areas of the bay. SAV in the Chesapeake Bay has been accurately mapped on a baywide basis for the years 1978,- 1984, 1985, 1986 and 1987. In addition, sections of the upper bay were mapped,for 1'@.79, and sections of the lower bay were mapped for 1971, 1974, 1980 and 1981 (Orth and Gordon, 1975; Orth, et al., 1979; Anderson and Macomber,'. i979,,. Orth, et al., 1985, 1986, 1987). Three representative areas in the lower bay were chosen to describe changes in the distribution of W in this regionbased on the availability of digitally mapped data (Fig. 32). These areas represent three different scenarios of change that SAV has undergone since the early 1970's. In the lower York River SAV declihed:An the early 1970's but has slowly returned in the last five years. In the Rappahannock River area SAV almost completely disappeared in the early 1970's and has recently returned to a few sections. The eastern shore area, where SAV had not significantly declined in the 1970's, had some smaller changes in the last decade. 88 3750. 0 UY HISTORICAL WINDOWS 3740. 0 RAPPAHANNOCK RIVER 3730. 0 VA EASTERN OR 3720. 0 LOWER YORK RIVER 371 1 -1 1 0.0 0 0 0 0 0 0 0 0 0 0 @q- rn N - 0 in (0 (0 (0 (0 Ln Figure 32. Location of 3 areas used in historical trends analysis. 89 YORK RIVER SAV data for this area, whi,ch-includes all of the area in section 19, were available for-,1971 1974,,1978, 1980 ,-19181, 1984, 1985, 1986, and 1987 (Fig. 33). The recent changes of SAV in the York River can be characterized by: 1. an abundance of SAV in 1971, primarily along the north shore and extending upriver to Clay Bank, consisting primarily of Z. marina and R. maritima (Fig. 34); 2. a rapid decline between 1971 and 1978, primarily in the upriver sections as well as the deeper portions of the established beds in the downriyer areas (Fig. 35),, during which approximately 50% of the SAV was lost; 3. a gradual increase in SAV between 1984 and 1987, principally in the downriver portions@,and in those areas in-close proximity to existing beds (Fig. 36). These,changes suggest that SAV had been affected by a major perturbation in the early I970's.,that caused a shift in the abundance of SAV from upriver to dowhrNer areas The pattern of change in this river, as well- as others alongthe western\shore, has sug ested that factors reducing 9 SAV abundance may be related to uO'land runoff. Many factors known to be associated with SAV declines (i. e. increased turbidity and dissolved nutrients) generally increase with distance upriver, and, also, effects should be more pronounced as water column depth increases. The questions currently being asked'by researchers investigating these hypotheses concern whether levels of these factors are sufficifent to effect the observed responses. SAV has increased gradually between 1�84 and 1987, principally in the downriver sections only, indicating that suitable conditions for SAV growth have returnedio these areas. Although'this revegetation has 90 LIOWER YORK RIVER HISTORICAL WINDOW PLOT OF TOTAL SAV AREA FOR ALL DENSITY CLASSES 1000- S A 800- V A R E 600- A H E C 400- T A R E S 200- 0 1970 1972 .1974 1976 1978 1980 1982 1984 1986 1988 YEAR Figure 33. SAV changes in the York River, 1971-1987. 91 3722. 5 1 1 1 -r-T-T T 1 T-T- I I -I I I U-0 I I CL BANK MOBJACK BAY w UI@EA MARSH 3715. 0 ogy, GOODWIN ISL. LOWER YORK RIVER---- (1971) SAV AREA'= 818.4 HECTARES Its 3707. 5-T- Ln 0 Ln 0 0 04 Ln fn n N - CD C.0 (0 Figure 34. SAV in the York River, 1971. 92 go 3722.5+1 111, 11 11 11111 1 1. 1 1 1 1Nil III FU'51 I I-III'l CL BANK MOBJACK BAY dk w e. @G E A UI MARSH 3715. 0 0?,Y, X GOODWIN ISL. LOWER YORK RIVER.- (1978) SAV AREA 452.2 HECTARES 3707. 5 1 Ln 0 Ln a 0 04 Ln rn K) N - (0 (0 (0 (0 Figure 35. SAV in the York River, 1978. =L 3722. 5. CL BANK M013JACK BAY GUINEA MAR SH 3715. 0 )"K I -GOODWIN ISL. LOWER YORK RIVER.- (1987) SAV AREA 608.0 HECTARES- 3 7 0 7. 5 Ln to co (0 Figure 36. SAV in the York River, 1987. 94 occurred na turally, success of VIMS transplanting efforts along the gradient of SAV in the York River since 1978 has paralleled the natural recovery (VIMS, unpublished data). Areas upstream of the Gloucester Point - Yorktown constriction in the river are generally still unsuitable for SAV growth. RAPPAHANNOCK RIVER SAV data for the Rappahannock River, which represents a portion of Section 16, w ere available for the same period as the York River data (Fig. 37). Changes in SAV in this river are characterized by: 1. an abundance of SAV, consisting of both Z. marina and R. maritima, in 1971 along both shores (Fig. 38); 2. a rapid,decline between 1971 and 1974, with SAV being almost completely eliminated from the entire river by 1974 (Fig. 39); 3. continued absence of SAV through 1986 with a rapid increase in SAV in 1987 in certain downriver areas (Fig. 40), Transplantation efforts in this river in. portions that represented the historical distributional limits of SAV, gene rally paralleled the natural changes. Although, as with the York, both Z. marina and R. maritima occurred in this area prior to 1971, and both subsequently declined, only R. maritima hat recolonized sites along the lower half of the former SAV distribution. R. maritima has been described as a colonizer of suitable habitat, and potentially can produce an abundance of seeds more suitable-for dispersion than Z. marina. Its recent rapid spread has also been'observed in other sections of the bay. However, why it has spread in the Rappahannock and not the York River is as yet unclear. 95 RAPPAHANNOCK RIVER HISTORICAL WINDOW PLOT OF TOTAL SAV AREA FOR ALL DENSITY CLASSES 800- S A V 600- A R E A 400- H E C T A R 200- E S 0 1970 1972 1974 1976 1978 1980 1982 1984 1986 1988 YEAR Figure 37. SAV changes in the Rappahannock River, 1971-1987. 96 3745.0 [email protected] ART R R. RAPPAFANNOCK 3737.5 @?APPAHAN NOCK R (1971) t TAN I@V! AV AREA 702.6 HECTIRIS @'@WYNN I I I II I L Ll II-4L-L' ---I -1 1*1 111 jXfLj-1 3730. 0 r U') r) 04 (0 (0 (0 r-- r- Figure 38. SAV in the Rappahannock River, 1971. @ART F 97 3745.0 I I P@t4 1 4- 1 1 1 1 1 T --Ck40RR0T0MAN ART R R. 10 RAPPAHANNOCK Lila @. 3737.5 - -4. -00@@ JTT -RAPPAHAN OCK RV-@-@ 'TANI( 3. 5 HECT (1974) V! AV AREA ARE S @'@WYNN 3730. O-P, I I I.-F-I I I I I I LO LO LO C14 Figure 39. SAV in the Rappahannock River, 1974. N s 98 oil, 3745. 0 .Ll 00 ORROTOMAN ART R R. --Vw 3737. 5 RAPPAHANNOCK -RAPPAHANNOCK RV4 n PI (1987) @TANK Rv-! AV AREA 160.1 HECTARES f'@WYNN 3730. 0 -I I @11 I I I j I U') o C) 04 Figure 40. SAV in the Rappahannock River, 1987. 99 EASTERN SHORE SAV data for the eastern shore, which represents a portion of Section 14, were available from 1978, 1980, 1981, 1984, 1985, 1986, and 1987 (Fig. 41). Although data were not available for this area prior to 1978, additional data for a smaller subsection of this area were available prior to 1978 (Orth, et al., 1987). Changes in this section can be characterized by: 1. abundant SAV in 1978 which, based on data from the smaller historical area, was most likely not significantly different from 1971 (Fig. 42); 2. some changes between 1978 and 1980, resulting in a decrease of approximately 30% of the SAV in this section (Fig. 43); 3. a gradual increase in SAV abundance from 1980 through 1987 (Fig. 44). This eastern shore region has, to a large degree, different runoff characteristics than many of the western shore tributaries, such as the-York and Rappahannock Rivers. The drainage basins of the creeks along this region are small, and circulation patterns promote flushing with clear oceanic water having fewer nutrients. Its location and response therefore support the hypothesis of runoff being an important factor affecting SAV survival in the bay region. 100 EASTERN SHORE HISTORICAL WINDOW PLOT OF TOTAL SAV AREA FOR ALL DENSITY CLASSES 1000- S A 800- v A R E 600- A H E 400- C T A R E S 200- 0 - 1977 1978 1979 1980 1981 1982 1983 1984 1985 19B6 1987 198B YEAR Figure 41. SAV changes along the lower Eastern Shore, 1978-1987. 101 3730. 0--1 1 1 1 1 1 1 1 1 1 1 1 1 r- I I I II IL-r--I- -VA EASTERN SHq (1978) -SAV AREA 789.1 HE 6@RES jAU14G,PR'3 Cp'FEK f ATAWOMAN CREEK 3722. 5 A C ARLES K 3715. 0 Ln U') 0 LO (D 0 't (0 (D Ln LO Figure 42. SAV along the lower Eastern Shore, 1978. i PA @'@ p C @ RL 102 3730. 0+ -VA EASTERN SHq, (1980) -SAV AREA 806.0 HE kRES "Uj4G1kRS CRFEK L,YATAWOMAN CREEK 3722. 5 AP.E c i @A`IRIL E S 37 15. 0@-' 0 0 C14 Ln Figure 43. SAV along the lower Eastern Shore, 1980. 103 3730. 0+ -VA EASTERN SHq (1987) -SAV AREA 877.3 HE 4RES 14UNG@RS CREEK ATAWOMAN CREEK 3722. 5 GA C ARLES 3715.0-- U') 0 U) 0 04 U') C) 0 U') "lt In Figure 44. SAV along the-lower Eastern Shore, 1987. PA @@(' p C ARL _VI 104 SECTION 6 LITERATURE CITED Anderson, R. R.-and R. T. Macomber. 1980. Distribution of submersed vascular plants Chesapeake Bay, Maryland. U.S. EPA. Final Report. Chesapeake Bay Program. Grant No. R805970. 126 pp. 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 I, 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. 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. 105 Orth, R. J. and K. A. Moore. 1982. The biology and propagation of Zostera marina, eelgrass, in the Chesapeake Bay, Virginia. U.S. EPA. Final Report 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. 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 thelower Chesapeake Bay, Virginia. U.S. EPA. Final Report. Chesapeake Bay Program. EPA- 600/8-79-029/SAV1. 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. EPA. Final Report. 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. U.S.E.P.A. Final Report. 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 106 aquatic vegetation in the Chesapeake Bay and tributaries and Chincoteague Bay - 1986. U.S.E.P.A. Final Report. 180 pp. 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. Rybicki, N., R. T. Anderson, and V. Carter. 1988. Data on the distribution and abundance of submersed aquatic vegetation in the tidal Potomac River and Transition Zone of the Potomac Estuary, Maryland, Virginia, and the District of Columbia, 1987. U. S. Geological Survey Open-File Report 88-307. 31 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 I, Monograph of the Characeae. Verlag Von J. Cramer, Weinheim. 904 pp. Wood, R. D. and K. Imarhori. 1964. A Revision of the Characeae: Volume II, Iconograph of the Characeae. Verlag Von J. Cramer, Weinheim. 395 icones with Index. 107 a 91, 0 APPENDICES 10, I q 04 10 N 00, 10 10 -1 108 APPENDIX A SPECIES OF SUBMERGED AQUATIC PLANTS FOUND IN THE CHESAPEAKE BAY AND TRIBUTARIES (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 Klein. ex Willd., em. Nitella flexilis (L). Ag., em. Potamogetonaceae Potamogeton perfoliatus L. var. (pondweed) bupleuroides (Fernald) Farwell Redhead grass Potamogeton pectinatus L. Sago pondweed Potamoguton crispus L. Curly pondweed Potamogeton pusillus L. Slender pondweed Ruppiaceae Ruppia maritima L. Widgeongrass Zannichelliaceae Zannichellia palustris L. Horned pondweed Najadaceae Najas guadalupensis (Sprengel) Southern naiad Magnus Najas gracillima (A. Braun) Magnus Naiad Najas minor Allioni Hydrocharitaceae Vallisneria americana Michaux Wild celery (frogbit) Elodea canadensis (Michaux) Common elodea Egeria densa Planchon Water-weed Hydrilla verticillata (L.f.) 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 (water milfoil) water milfoil Zosteraceae Zostera marina (L.) Eelgrass 109 APPENDIX B LATITUDE AND LONGITUDE COORDINATE POINTS DEFINING 21 MAJOR SECTIONS IN THE CHESAPEAKE BAY AND CHINCOTEAGUE BAY 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 45.00 39 05.00 76 00.00 38 57.10 76 11.85 39 00-00 76 19.10 110 0 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 38 20.00 77 24.80 0 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 58.00 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 38 05.00 76 21.54 38 23.80 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 35.60 38 00.00 75 38.00 38 45.00 76 25.00. 38 00.73 75 49.50 38 23.50 76 20.00 37 57.10 75 50.30 38 65.00 76 10.00 37 55.00 75 55'.10 41 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. Tangier-Smith Islands 37 55.50 76 18.15 37 53.85 76 28.00 37 45.00 75 58.30 0 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 05.88 38 35.00 77 00.00 38 11 * 70 75 59.00 38 15.00 76 25.45 37 55.00 75 55.10 38 05.00 76 21.54 38 02.85 76 19-40 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 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 10.00 112 LATITUDE LONGITUDE LATITUDE LONGITUDE DEG MIN DEG MIN DEG MIN DEG MIN ----------------------- ----------------------- SEC. 20. Lower Western Shore Chincoteague Bay 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 41 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 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 16.00 113 k APPENDIX C TOPOGRAPHIC QUADRANGLES SHOWING THE 1987 DISTRIBUTION AND ABUNDANCE OF SAV (BOUNDARIES OF INDIVIDUAL SAV BEDS ARE DELINEATED BY SOLID LINES. EACH BED IS IDENTIFIED WITH A LETTER (A-Z) AND A NUMBER (1-4). THESE NUMBERS REPRESENT THE DENSITY CLASSIFICATION DISCUSSED IN THE TEXT AND FIG. 4, I.E.) I = <10%; 2 = 10-40%; 3 = 40-70%; 4 = 70-100%. GROUND TRUTHING REPRESENTED BY SYMBOLS AND SPECIES CODES WHICH ARE EXPLAINED IN THE LEGEND ON EACH MAP.) 114 UNITED STATES @BERDEEN 0 DEPAR _UADRANGLE T ENT OF THE INTERIOR CEDLOGICAL SURVEY 15 MINUTE SERIES JOPWRAPHIC,) 74 IV IV I. N W--" SUBMERGED AQUATIC VEGETATI 0 IT- a 7- a 35 -Ik V 32- .F, 61 Ij 7 DATE FLOWN SPECIE 8-11-87 Z. z-,.@-(.clig-) SHV Hy&illa hydidila) SURVEY STATIONS ABERDEEN, Rm Hd Hm-h- &bia (water stargrase) MS hfyiphyll-pi@ (Eumian watemilfoil) Pcr P-ge- mspw (wdy pandweed) MD Charter Boat Field Survey MD Plot P-g ...... fli- (rdhad-greae) Cd C-Rphyll-k- (montail) Citizens Field Observation 002 Ppc P-gm. pecdmw (Sago pordweed) Ppu P-g-pwillw (Sle,rdor pordweed) Zp Zannich0rapaloms (horned pondweed) Ngu NajxguadaluNmis (southern naiad) A VIMS Field Survey N Njw Vp. (naiad) Ngr Aaj.,-LIU- (naiad) U.S.G.S. & N.V.C.C. Survey EC EW,, c,Rakmis (common elocea) C Ch-p.(mL.kg-) Va VRII4smn1arwhcRa (wild calery) Nm Nj=m- (slender naied) SCALE 1:24.000 Tn Traee - (water chestnut) 1 0 1 'ILE J Unknown species, composition I I ILDRETER 115 11 NITED S ATES HAVRE DE GRACE QUADRANGLE S." ENT OF THE INTERIOR GEOLOGICAL SURVEY 7 5 MINUTE SERIES (T-GRAPHICI -z@ SUBMERGED AQUATIC VEGETATION 198, GB' X" VIA C@@ I @Ils Is!- Ims Cd *MS,Hd, Cd,' V.,N LB@ N) 4 L OMS ZVI S XB: vb'h@ J V133- *v-, 4- -'I16MsCdPpcc@ M N, IHP fzc (I *MrCd,Pp, cl@l JA4 *Ms,Cd *MS r\- 111111@'cl,lvl, Y BI Va, Hd, Hv, Cd, N M2 Y . ........... EA3 A\ I&Ms,Cd,Ngu Ms'Vo P, 3 I *Ground truth provided by Stan Kollar of Harford Community College SA3 %ZB3 Ms J, DATE FLOWN SPECIES 8-11-87 ZM Zestem RI (eelgrass) Hv HydiYa venicillene (hydrifla) SURVEY STATIONS HAVRE DE RM Rppia R-m- (widgeon gress) Hd hfemr-@,u dubia (water stargras@) MD Charter Boat Field Survey GRACE,MD MS MyriophyllwnspicarMn, (Eurasian watemiltoil) Pcr P-g--rtrrue (wdy pondweed) PP! Po-,,,..p,rf.I@ (nedth..d-gass) Cd C-Mphyllmdr-S. (Wornail) ed I* Citizens Field Obsewation 003 Ppc P-g- praineno, (sago pondweed) Ppu P-gm.pu,iII,o (Sender pandwe .. ........ Zip ZannichIIrtapalwwu (horned pondweed) Ngu Nojee gMedelprois (southern naiad) A VIMS Field Survey NArejar Vp. (naiad) Ngr AUjargN-jjjrRu (naiad) U.S.G.S. & N.V.C@C. Survey EC EW-anI (common loc,a) CC@o . (mu.kg-) Va Vallomj, -j,rana (wild ceJery) Nm Nq-ture, (slender naiad) SCALE 1:24,000 TIT Twanerew(weearchosenull I-E UUnknown species oomposition I --n 116 L N I TL I.' '-1A I E-1 NOR111 FA@; IF @HE INTERION SONVEY 1987' SUBMERGED AQUATIC VEGETATION 4@ w 'n, N A 1@1 K N V T A rr"l' -v x /* % W,ms c #A 4FA4 @,N A EMS BA2 % me ov.,'ms DA3-\@@ 4@ z; *Ground truth pr','o byVan@@ldr Ilege AA2 of Hafford Co". X)Co t7 15@TE FLOWN. SPECIES 8-11-87 Zm Z,- Hv SURVEY STATIONS NORTH EAST Rm Rw. (widp- g-l Hd (-w mrg-) Ms pcr 1-f- -I MD Ch:,,gr Boal Field Survey M6 ppf P-.,- (-,-@gn-) Cd C-y@@ i@mffill Citizen Field observation 004 Ppc P-@m- (sago m@) PPU P-s - r-ww (@- @-) ZP Z-@ @a@ (honwd P@\-d@ lslg@ V@,-w-u (-W@ -W) A VIIAS Field Survey N I- gr (nedl Ng, U.S.G.S. & NN.C.C. Survey Ec C Va @ ww- twOd Oryl Nm ,4- (w@r -W) SCALE 1,24.000 T@ T,@ - -1 1 - U U-@-@@ 117 N EDGEWOO ENT OF THE INTERIOR UNITED STATES ,DQUAURANGLE T RTM GEO ARTNEHT OF THE ARMY ..H.TE LOGICAL SURVEY T '4SUBMERGED AQUATIC VEGETATION - 1987 /4. J 10 Aa oj@ a4, 27 3V wil L-t::7 -2 F"- 7. . ........... p! vla@ FIDE --C* FROVING Gv- E.O. GROUND -IT Isic G T iIi 4 eo) - ------------ 6, 41 F"e" VIOL wwt@ A2 EEN H R J.iv '-4 -2- ..... . ...... DATE FLOWN SPECIES 9-25-87 '14, Zm &-n.(.1ii HV Hykill-mfilw (hydrillail SURVEY STATIONS EDGEWOOD RM Rgppia@@(widgeorgrass) Ad Hm,=&m dbia (water stargrasti) MD Charter Boat Field Suwey M VIS Mynophyll-picar- (Eurasian watermiltod) Pcr p-,M-oup= (wily pon:eed) Plot P-gm.,,friau, (rodheaa@graas) Cd c,-phyu.&-(ccon ll@ Citizens Field Observation 007 PpC P-g-pcd,,-, (sago pond-d) Ppu P-g-p=sIIw (slender pondweed) Z pZarmfhlliaplw@ (homed pandweed) Ngu Njw g,,ii (Miiffiern naiad) A VIMS Field Survey NNjw @p. (naiad) Ngr Njmg-illirransad) U.S.G.S. & N.N.C.C. Survey Ec Elodea canaidemis (common elodea) C Chare sp. (mitiskgrass) Va V@ru.,@-n-(wddoal.ry) N. SCALE 1:24.000 Tn Tapa @ (water Chestnut) 0 1 IF UUnknown species composition 118 UNITED STATES PERRYMAN OUlLUP-GLE DEPARTMENT OF THE INTERIOR A GEOLOGICAL SURVEY 7 .1-1 .1-- ITLI1 ...... ......... . . ..... 0 NI--.,.;Z&N@ fi@, -7 0 SUBMERGED AQUATIC VEGETATION NA 1987 Ail "-A _j _j k -i.A- it 'AmkbEEN OVING 34 P, 7-- RY ZESERVATI?N A + :7-:: -W ISLAND 7, T D,!JTY ...... ..... C e/ 6.) Q.) A Zx. F xim 'o . ........... DATE FLOWN ZM Zor-ANDrim(eelgross) SPECIES Hv Hy&ilk L-willar. (hydnila) 9-25-87 RM RWpi-itir%S(md,jeNDrgrai Hd 17--hro &IN. (,War stargress) SURVEY STATIONS PERRYMAN, MS Alynphyllmn spicimAN (Eurasian watermiltoil) PCr P-gew, ciupus (curly pondweed) MD Charter Doat Field SurveY MD Pipf radhead-ginals) Cd c,,-pAyul,,N a. (coontini) Citizens Field Observation 008 PPC (Sag. pnd-ed) PpU PASNwg-pwr1lw (Slemdler porchimed) Zp ZalviAchAthapol-tt (horned pondeed) NgU Nurw g@l@wa (Muthern naiad) A VIIAS Field Survey N Njw vp. (noted) Ngr Njw gi,acillim (naiad) U.S.G.S. & N@[email protected]. Survey Ec, E&S--d-is (common slodea) C Chararp. (muskgrates) Va vallis ... IS -im. (mid wery) Nan Navas nullor (slender naiad) SCALE 1:24.000 Tn Tmpo - (water cheetnut) U Unknmn speliin, composition .-S,Sn 119 [email protected],ST TES T THE MTERIOR SPESUTIE OUADRANGLE GEOLOGICAL SURVEY I I _RIES (T01-RA111111 Ground truth provided by Stan Kollar of *Hd. JAI I Harford Community, College I [email protected] M'. Em Va C SUBMERGED AQUATIC VEGETATION 1987 4 A I N! G --1 0 V4 4 + -All it 4 GA3 W -A WI. 4 P + 9 it -4 it Hd @-@,AA3 MS A 4 R,, I V E R 12 .. .... ..... UA I t@@ FLOWN Zin Zw-, @na (eelgrasti) SPEC@IPSHV Hy&iUa wntfill- (hydrilla) 8-11-87 SURVEY STATIONS 9-25-8' RM RVpw mriam (widgwn gras,i) Hd H--he- @izt (water stargrasi,) MD Charter Boat Field SUNGY SPESUTIE, MIS Myriphyll-pi- (Eurasian watemitfoil) Pa P-gr-hipw (cudy pondad) PPf P-g,,.pdWi-i (radhead-gnass) Cd C-phyllmd-- (=n,.I) Citizens Field ObserVation MD PPC P-,,-@crfnnnu (sago pondwited) PPU P-g-pwit1w (slander pondweed) ZP ZanvudIIspt=ris (horned pondweed) Ngu Nljw 9,-[s1WWi5 (southern naiad) A VIMS Field Survey 009 N Njw spin. (naiad) Ngr Nj. g-iftmc; (naiad) U.S.G.S. & N.M.C.C. Survey EC E1,&-ad-is (mmmon elodea) CChtaV.(rnuskgraas) Va Vallismna a-ficana (wild celery) Nm Nj. nti., (al.nd., rutitid) Tn T,@ n-, (water chesunut) SCALr.1:24,000 U Unkno- spedes wiriposition Mi 120 qW UNITED STATES UNITED STATE EARLEVIL E OJADRANOLL I,_". OF TMENT OF THE iNTE IOR CPA RTMENT THE ARMY I -.- "SIR @TC-R-H_ 0EOLOGICAL SURVEY CORPS OF E_-- NZ . ......... N N gj@A c Kollcub yind rpc -SUBMERGED AQUATIC VEGETATION 1987 BOHEMfA PC T1 _2@ v7, ji 3 _j )A /$ J)A F@ k v- :@ 2 /A N E @K Y 'k BAj 6 7- DATE FLOWN SPECIES B-11-87 Zm z--@_(..1gass) HV H)@iiio wnwillot, (hydnga) RM RWpiananduna(widgeong-) Hd H,,,.,he,, dbia (water starginiss) SURVEY STATIONS EARLEVILLE, IVIS Myriphythenspicaum, (Eurasian watermilfoil) Pcr Po-g-crup. (wily pond-Sid) MD Charter Boat Field Survey MD Ppf P-gm,nimrfoliaw (redhead-grass) Cd cedrophyu= dewrim (coontail) PPC P-g,-np-naha, (sago pond-d) PPU P-g-pwillw(slanderpond"ed) Citizens Field ObservEnion 010 ZP Zannfc@lliapalw,@ (homed pondmAaed) Ngu Njw paddf@wu (widhern naiad) A VIMS Field SuNey -1 N Nef. vp. (naied) Ngr Njw groiillim (naiad) U.S.G.S. & N.V.C.C. Su,.y Ec Eld,, mnadewu (common elodea) C Chan-p, (muskgrass) Va Valliswn, -k,ana (,,ild celary) NM NjaA dw, (slender naiad) Tn Tm,,a -. (..t.r ohmmin SCALE.1:24.000 U Unknmn spades oomposlifficin 121 UNITED I 4TE6 MIDDLE RIVER QUADRANGLE D.RA RTME T OF THE INTEMOR MARYLAND- BALTIMOOE CO GEOLOGICAL SURVEY ...... 7,5 M-TE s-Es IT0:00-111 'SUBMERGED AQUATIC V 1987 EGETATION ;r Z-!@:..@ @j 40, M co c C,@ 4@' Tv ,LI-1 Z r 'A z A A VQAi6Ec ii 7. P9U -7 "M C Ava va 0 B Lup, P. .4P DATE FLOWN 9-25-87 SPEC'ESHV Znn z-nnnwnnce(.1g-) HyMil, wnruillaw (hydrilla) SURVEY STATIONS MIDDLE RIVER,' RM RWpJa@rJnna(widgeohgr&ss) Hd H,-&,A dbjs (@er siargrass) MS Mynphyfr-pi@ (Eurasian @dermilfoil) PCr P-g- cispw (cudy pondweed) MD Ch:rter Boat Field Sumey MD Ppf P-g-@,fIjw (redhead-grass) Cd Ce-phyllu,,I d- (MOntaill) Citizen Field ObseNation 013 PPC P-gewn@cd,-; (sag0 POndWa0d) PpU p0n-g-pwjIIw (slender P-%"ed) Z A VIMS Field Suwey p @chejjj@spajumru, (homed pon"oso Ngu Majw go"Wewis (saWhern naiad) N Noijar Vp. (naiad) Ngr Nqiw gmalluns (naiad) U.S.G.S. & N.V.C.C. SuNey EC E- @wu, (conunon sindea) C ch-. @ (-grass) Va vanumna srnh@icans (wid oelary) Nm Njw ww (wander naiad) SCALE 1:24,000 Tn Tm;,a - (@er chestrut) U UnM-speciescomposition 122 lee, UNITED STATES UN TED STATES DEPAR MENT OF THE INTERIOR ARTMENT OF T- ARMY IRYLAND GUNPOWDER NECK QUADRANGLE OER A GEOLOGICAL SURVEY CORPS OF ENGINEERS 75 MINUTE SERIES (TOPUGRAPHIC) IU JI KA@ SUBMERGED AQUATIC@;0"' VEGETATION s 1987 lp & 0 s MA-n U C:) U tj J ms A R JB. pA PA4: 0 V.-) A ms 20 XA gh /M.nly P. p E@ IJ s'Vd -T- HAB s MIS ms U A2 ms GAI bA R m S' \v'0 I N G' R-- N D T'M A S'va 47 CA3@? B ms B3 ,a CB ms In A4 s S.a MIS a-, .1 m B MIS EA3 -co d P.... I A uM + -nd P E A A C) A A '0- 1730 . . . . . . 761" DATE FLOWN SPECIES 9-25-87 Zm z..... (seigrass) HV Hydf1k,,,,NciIIm (hydrilla) SURVEY STATIONS GUNPOWDER Rm RuRna A-itim (voogeon grass) Hid Hrm-h@ dubia (water stargraSs) MD Charter Boat Field Survey NECK, MD me -,wp'@I-Api- 111uracu- wwtarvnifta@ Per P'N-g- @nsp@ (curty pendweed) PPf P-9-p,,fWiam (ledhead-gms) Cd C-ophyll. d-wn (montail) Ciftens Field Observation Ppc P-g- p,cd@ (sago pondwoed) Ppu P.A-g- pwillw (slander pordweed) 014 Zp ZanniO&1h,pd-m; (horned pordweed) Ngu fticAgw"Werois (southern naiad) A VIMS Field Survey N Xqj-pp. (naiad) Ngr NRjm g@illinu (naiad) U.S.G.S. & N.V.C.C. SuNey Ec Ewr, OR,*wis (common elodea) CChar, sp. (muskgrass) Va Vallisurf, a-firam (wild celery) Nm Njwdw, (slender naiad) Tn T,.p, nnA-, (water Chestnut) SCALE .1:2AD00 I-E U Unknown species compoeition I A ;.-ETER 123 GE:'ARTUNITED 6 ATE8 MENT OF THE INTERIOR HANESVILLE QUADRANGLE GEOLOO CAL SURVEY@ MARYLAND 7.5 MINUTE SERIES (1701-RAPHIC) -21 - el @o SUBMERGED AOUATIC VEGETATION'- 1987 flk6itNG@:. ND DIE 4 4 4 4 A!, 9 4 A- 4 See, 4 4 4', 4'v 4 _41".., + 4 Jr, S7 .14 _j _7 @y el DATE FLOWN Zm (eeigniss) SPECIESHv Hye@il@ @11= (hydfilla) 8-11-87 SURVEY STATIONS HANESVILLE, RM RWi. Riarid- (.idg.n Q-) Hd He--@- dbia (wWor stargrese) MID Charter Boat Field Survey MD MS MyHophyll. spi,-, (Eur"an @omflfoll) PC, P-,- @wp. (cudy pnd..ec) Ppf P-g_p,,,fo1i.- (rodhiiadgrass) Cd Cemophyllmdw,,m (=Mail) Citizens Field Observation Ppc P-g,m@cd,,Riu, (Sago pono-d!) Ppu P-ga-p@fliw (slender pondweed) 015 Zip @dwlliapai,-U (hOMGd pondweed) Ngu Nqjw gw"Wwis (SoWhem naiad) A VIIAS Field Suwey N Njwpp. (naiad) Ngr Vjw gwilli- (nahicl) U.S.G.S. & NN.C.C. SuNey EC E- CC@. Va Vaflilna -n- (Wid I.ry) Nm Njo ,d., (slender naiad) Tn T,@-,(@aterchestnut) SCALE,1:24.000 I MAE U Unknmn species mcnipmition 124 UNITED STATES EPARTMENT OF THE INTERIOR BETTERTON QUADRANGLE GEOLOGICAL SURVEY MARYLAND- KENT CD In. 5 MINUTE SERIES (T-RAPHIC EGETATION 1987 U -SUBMERGED AQUATIC V > Q) A" I-X5 @3 L/ ... .......... r CZ . .......... @ DATE FLOWN SPECIES 8-11 -87 ZID Zorren, mwiw (001grast) HV Hy&iila wnrkillara (hydrilla) SURVEY STATIONS BETTERTON, Rm RWia owituna (widgeon grate) Hd Hete-jhew dubia (water stargress) MS My@,phylh,,Y spi,,UwK (Eurasian watannistoil) Pcr p-g- crirp. (wrly pondweed) MD Charter Boat Field SurVery MD Ppf P-g-PlIfliant; (redhead-grates) Cd C-phyll-d-r- (coontail) Citizens Field ObserVation 016 Ppo P.-g-p-- (sag. pn&-.d) Ppu P@g--Ihu fshmda, pondweed) Zp Z-6chelthap,1KAnnur (homed pondweed) Ngu Njw (aSumen, naiad) A VIMS Field StnVey NNjxpp. (naiad) Ngr w. g-11jnI (naiaci) U.S.G.S. & NN.C.C. S.Uvey ED EW,, -d-q (common elodea) C C@, sp. (muskgrast) Va Velfisuria S-rioaKa (*Id Salary) NM Njm mi- Islander nWad) SCALE 1:24,000 Tn T,,pa @ (water chestnut) I ILE UUnknown species oompoeftion A -_R 125 UNITED STATES UNITED STATE GALENA OUADRANGLE FART AR'LAM. OFPARTMENT OF THE INTERIOR OF M NT OF THE ARMY ME COR 7 5 MINUTES RIES IT-RAPHIC) 3EOLOGICAL SURVEY PS OF ENGINEERS A I d a 4ME-AIGED AQUATIC VEGETATION - 1 87. Vd 51 @U Ma EIA - p r C cr Tin A p v1s,c Ms-" 7 J@ % C&- 0' I%- f y + 117- > G U. Ground t ollor 0 communit M -K, 39-11 57- -+K DATE FLOWN Zm Z-'. (,Magrass) SPECIESHV H)Y*Q4 wnicillaw (hYdrilla) B-11-87 SURVEY STATIONS GALENA, Fin R@pia mriabw (widgeon graits) Ad Hemroah- dubia (water seargrasal 0 MD Charter Boat Field Survey MD Me myrIvphytr@ spu- (Eurasian watermilloti) Pcr P-gewn crisp,U, (Guity pondweed) Ppl P-g- pefbfiaw (redhead-grass) Cd cer-phyuwd-(GGoUaajI) 0 Citizens Field Observation 017 Ppc P-g-pecth- (Sago pond"ed) PpU P-g-pwilIM, (slander pondmef) Zp Z=dchelliopdw" (homed pondweeGI) NgU Naim guadalWma (soUthern naiad) A VIMS Field Survey N NOIN, Rap. (naiad) Ngr Naia, gracilli- (naiad) U.S-G.S. & NN.C.C. Survey Ec Elodea cawdemis (common elodea) Ccharap. (muskgrass) Va vouawia -i- (wild celery) NM Norf- (slender naiad) SCALE 1:24.000 Tn TRR, -M (water chesnaw) I MAE I U Unloown Spaces compoeftion I IF I 126 UNITS. S'A'E@ SPARROWS POINT QUADRANGLE EE.'..NT OF THE INTERIOR MARYLAND GEOLOGICAL SURVEY 7.5 MINUTE SERIES (TODOGRAPH C) -0, .. . ............ SUBMERGED AQUATIC VEGETATION - 1987 'OVE HA WK 'F. A, c C." IN. x A C, c Im OLD ROAD BA F- + 0 4 4 0 + Q 0 y, fJ"- H P-d A 47 FLOWN SPECIE DATE 9-25-87 S Z. Z.- -6. (..Ig-) HV Hydiha -ddllor, (hydrilla) RM RWpui @ (widgeon grass) SURVEY STATIONS SPARROWS Hd U-Nnuh- dbi, (water stargrass) MD Charter Eloat Field SUNey POINT, MD IMS MynwhAho, spicaren jEwaslan walemniffical) PCt P-g- chVw tourty poralweed) Ppf P-g- pejblionLr (redhead-grm) Cd C-phyllm Rem- (wontail) Citizens Field Observation 019 10 PPC P-gm.pecninant (Sago pordweed) PpU P-g-p.iflw (slender pordweed) Zp @chelliapd-ur (homed ponctweed) Ngu Nj= NAA"-i, (=whom new) VIMS Field Suivay -1. IAN NNj= W. (naiad) Ngr Nj. g-illin. traded) EC Eiode, cardemis (Wartmon elodea) C Char. . mutIkgraas) U.S.G.S. & N.V.C.C. Survey Va Votli-O, Rewriceno (wild wary) Nm Nja, w.r (slender naiad) TO Tapa - (water cheanut) I SCALE.1:24,000 I wk@ UUnknown spooes -position 127 UNITED STATES UNITED STATES SWAN POiNT OU ADRANGLE OF THE INTERIOR 'RYLA MD ICAL DEPARTMENT OF THE ARMY 15 MINUTE SERIES J.P.ON-IIII, GEOLOG SURVEY CORPS 0 F.,I@NDINEEFS Is SUBMERGED AQUATIC VEGETATION 1987-/ cj 4 3 A P E A K 'E ou A y 4" r M,: I., c UA AA* 39 -2v DATE FLOWN SPECIES 1-11-17 ,/10 Z. Hv Hy&,dt. -wille. (hydrill.) SURVEY STATIONS SWAN Poll NT, RM Rwi-dabna(Widgeongrass) Hd H--/M,,dRbi,(,WerstargraMs) MD Charter Boat Field Survey MD Ms myriophyu=spic@@Eurasiwwatermiifoii) Pcr P.-g,.. cUp. (.dy pnd-ad) Ppf (nadheadi-grasa) Cd c,=@hyiimd,,- l=mam) CjVzew Field Obsomation 020 food p-g- @c_ (Eado pondARRId) Ppu P-itm.pwiliw (slender pondweed) I- zp palraA, (homed pordseed) Ngu Maim guadalupewis (southern naiad) A VIMS Field Survey Z"'I N Njw spp. (naiad) N r Nsjwgwitfmw (naiad) U.S.G.S. & N.V.C.C. SuNey Ec Elde. cAnadwu (mmmon III Cg Chana,.(muskitrass) Va ZI -I- (wild I.ry) Nm Majw rnis- (slender naiad) Tn TnR, nsAUU, (III cheartnut) SCALE .1:24.000 IMUE U Unknown spedee DomposMon 128 UNITED STATES UNITED STATES ROCK HALL QUADRANGLE -EPAIRTNIEN' OF THE INTERIOR OE@TMENT OF - AR Y MARY --KENT CO RPS 7 5MlNlJTE ERIP AR-1 EOLOGICAL SURVEY OF ENGINEERS Z SUBMERGED AQUATIC VEGETATION-1 87 cf, 0 ol A 0 0 A 0 0 0 --fa- '"It.], HdI :7; Awl .17 39-07- 7'- 76-1W 12- 3 SPECIES DATE FLOWN ZM ZM-@(eelgnisi HV Hydjj@ (hydiilll) SURVEY STATIONS 8/11187 RM R@i .. idAw (widgill- glees) Hd H--Aw. dMwa (water litargrass) MS AfylphyII-pke,- (E,rasiah -mmlfoil) Pcr P-g- nupw (wdy pond-di) MD Charter Boat Field Sumey ROCK HALL, MD Ppf P@ghmperfti@ (redhead-g-) Cd C,-phyIImdmMm- (coortall) Citizens Field Obseivation 021 PpC P-g-p- (sago p0,,Kh,,eed) Ppu P-g-.pwiuw (sli Rondsed) Zp ZAdchlI11,pIwwj, (homed pond-c!) Ngu Njw (Wuthern naiad) A VIMS Field Suwey I'll Nml p. nehid) Ngr Njw 8,,,Yi11ma (naiec!) U.S.G.S. & NN.C.C. Survey EC El,,ka caw*ou (common elodea) C Ch- . (.uskg-) Va ValluMmia -1- (villd celery) Nm Njw Ww,(slender naiad) SCALE 1:24.000 Tn TO,,M, @ (Mister chell JUnkh-n spechh; ..piti.h 129 UNITED STATES GIB UNITED STATES MSONLAISLAANMD OUADRANGLE 'Ry No_ N E AFGN.1L - DEPARTMENT OF THE INTE IOR DEPANI MENT OF THE ARMY 75 IINUTE SERIEK _-RAPHICI GEOL.OCICAL SURVEY CORPS OF ENGINEERS IS,, 3Cr 27- SUBMERGED AQUATIC VEGETAtI6N 1987 J 0) .h: IS 5' ch. G.. A -..6fd G 0 r 3r. Q) < -A 14 IRK 76@ - DATE FLOWN SPECIES 8-11-87A Zm &u- -n- (calgrass) HV Hy&illa verricUlaw (hydrilla) SURVEY STATIONS GIBSON ISLAND,"' RM R@pia mnr@ (widgeon grass) Hill He--h- "ia (-Me' Wanglass) MS Afydophyllm spicarMR (Eurasian watemitfoll) Per P-g- cn@rpw (wrly pondweed) MID Ch:ner,soat Fied Suwey MID Ppf P-gm.p,dvIiRtK, (redhead-grass) Cd C-@hyll= d- (wOrGst Citizen Fie d Observation 024 PpC Poia-g-RpecnKrucr (sago pondmeed) Ppu P-gcmpRaIIw (slender POndweed) ZP (homad Wndwaoc) Ngu Njw gAI&rWmis (southern naiad) A VIMS Field Survey N (njd) Ngr Njm g@ilbnia (naiad) U.S.G.S. & N.V.C.C. SuNey Ec Eb@, -*Ris (Oommon siodea) C C@, V. (-Skgrass) va 14,114"'u, -f- (Wiw calory) Nm Nqja@ Idwr (slender naiad) SCALE 1:24,000 Tin T,@ @ I- Oesinun -E U Unknma aDecies Oomposdon A 130 UNITED LANGFORD CRE E QUADRANGLE STATES UNITED STATE MARYLK NH DEPARTMENT OF THE INTERIOR ..'ART.ENT C, THE ARMY 75 MINUTE SERIES JOR@nRALPHIC) GEOLOGICAL SURVEY CORPS OF ENCUNEE.s W 39.0'.L115- - SA2 GC AQUATIC VEGETATION - 1987" LA2. - m C PPf, R R FC Q Pf % OR .A Ppi Pp NAIJ Rm T R GB3 f A3 D VA4 P Ec f M 2 A@ f Rm' B2 P- Ppf PPC MI I Lots HB3 P "P Ppc,PPf Rrn,P f P I P P f -@A RM R Rm P A EE RM IB4 OF3M Pf, "o Pill- R iR@ Rm, 4 S PAN IA D IECI R A4 & R MIO pf Rm C % Rrn. Ppc ,A DC2 M T-1 Mr, M 1@ / I/ A M OIL HAI 1@3: RmPpc M 1A3 Rm 84 p RM K\B NEC ,E) @M' A CC4 MRA 4@ op f, ORm ....... uppf P Rm FA2 B2 -Rm pcl@ pf PM ,RM @( B4 . `t@ P SB47 !(\ DA3 2'30@ Rm B3 Rmo. ,U4 XB3 f v HO A N D CA2 Rm,P f M c --\BA R P. AA3 .......... 71- IAY SPECIE DATE FLOWN ZrP SHV Hydilla "IdlilLWI (hydrilla) 8-11-87 RM AWPle @1@ (widgeo. g-) Hid Hef-haa dublP (water sarg,aSS) SURVEY STATIONS LANGFORD Me MYNOP41"m sPicawn (Eurasian waternItifoij) Pcr P-g-@pw (way wr:,eed) 0 MID Charter Bctat Field Sumey Ppf P-g-P,dblianu (redhead-gress) Cd Ceranphylluinde-Urn(ccon) CREEK,MD POO Poee-ge-w- (sago wridweed) PPU P-8-PwiUm (slender pondweed) 0 Citizens Field Obse-tion ZP zenn'clw1liopal@ (horned ponfteed) 026' NNavas vp. (naiad) Ngu Aaj-g-"RPN@4 (.Wh.rn naiad) A, VIMS Field Sumey Ec E@a ca-fe-@ (cornmon stodea) Ngr N-j= it,-illim (naiad) CCJ`-eV.(MUSkgra,U;) U.S.G.S. & N.N.C.C. Survey ... Va voitarena aRRdcans (mid Cejeq) Nnn Naj= ov- (slender naiad) Tn Two na- (water chestnuti, SCAUE.1:24,000 Uunknown SPedes CompDsition 131 UNITED STATES UN TED STATES CENTREVI.L.L.E QUADRANGLE ..FAR ,-. C T ENT OF THE INTERIOR DEPARTMENT OF THE ARMY 7.5 MIN SESI -=RA-C) GEOLOGICAL SURVEY CORPS OF ENGINEERS 3 -,'I. , A SUBMERGED AQUATIC VEGETATION - 1987,/ F, A % A, C12 AA3 c 0 C Z) "- el ull .ij t vp --J'L7 1172 Is DATE 11-0 N-,-@" SPECIES Zal z"t""Wrim (ealgrass) Hv H),*111a @,mcillxa (hydrilla) SURVEY STATIONS CENTREVILLE, RM RWpia wnruna (widgeon grass) Hd Hetsanrh nlbw (water stargrass) N N MD Charter Boat Field SuNey MID MS Myriphylimspi- (EuraSiW watermilfol) pa po_g,- cjp. (.Hy po.:ed) Ppf P-geronpefolions, (radhead-gres4l) Cd C-phyUsnd-,-n(oGGh 0 Citizens Field ObSemajon 027 PpC P-g-, pecrissur (sago pondweed) Ppu p-g-p=Ww (slander pondweed) Zp Zonnihd1ipolm" (homed pondweed) Ngu Nava, guadalwnou (soirthern naiad) A VIMS Field Suwey NNjw Vp. (naiad) Ngr Nnix grocilluna (naiad) U.S.G.S. & N.N.C.C. Survey EC Eld,, -aderois (common elodea) C C@a v. (muskgrass) Va Vatlumi, orneficano, (wild celary) Nan Nqrw ndr (slender naiad) SCALE 1:24.ODO Tn @ (water chesha,t) UUnknmn species compmftion ;.-n. 132 TH UNITED 3 ATES UNITED STATES SOU 'EFAR' M_ MENT OF THE INTERIOR D_Rl. NT .1 - A1.1 YLANJD-A-@ A OECLOOICAL SURVEY _PS CP INEERS 75 MINUTE Ea TOPMRAPHIC -19 SUBMERGED AQUATIC VEGEfA'TI0N U7 ;'Q 'am R AirlI, ut, T...' P. yT@ a f A 4@ PI@t tr. p;-ze" M\ GI, 'A4 dg E-o P- q.7 o Iv % 7@71 f It 6 U 0 A % ..... ..... DATE FLOWN Av SPECIES 8-11-87 Zm &'-Wrino (eeignuts) Hv HydnRa V,,hs11xa (hydnha) SURVEY STATIONS SOUTH RIVER, RM Rwpt-iIbW(MogWngroa) Hd H,j-heN dubw (water Starg-) N MD Charter Boat Field Smey MID MS AfyxphyI1-pj,-n (EUreean atermiltoil) PCr P-g- ,ipw (cudy ptut:,00d) lopf P-8MnpIoyb1@(redhqad1-grEoMI) Cd C-rphyiIwnd-=(ooQn ) 0 Citi@ens Reid Observation 030 Ppc P-ger-pectinvou, (Eago pondweed) Ppu P-ge-pwalw (,(ander pon@ed) Zp Zamucheffia@juois (horned pondweed) N9U Norixguaddpemis (southern naiad) A VIMS Field SuNey N Najw pp. (naiad) Ngr Norw g-irl@ (naiad) U.&G.S. & N.V.C.C. SurVey ED EA,*a co@mir foonnmon ODdea) C C)- o, (muskgrass) Va vallismria anMI (wild Wery) Nm Nnj=nunVr(sk,nde-ELad) SCALE 1:24,000 Th T,@ - (water oresonut) E 1 MILE U Unknown speaes mmposdion 133 UNITED STATES UNITED ST TIES ANNAPOLIS QUADRANOLE c DEPARTMENT OF THE INTERIOR . Ry-D GEOLDOICAL SURVEY DEPARTMENT OF THE ARMY ARIES (TOPOORAPHIC CORPB@ 7.5 MINUTE BE ENGINEERS .,SUBMERGED AQUATIC VEGETATION -1987 2f X 01 @n ---- . . . . . . e,, T." pv - ---------- . .... . ... ...... ....... DAT SPECIES Z HV H)*sI1a wnwilLou, (hydrilla) Hd Hae-hn, &,bia (water stargiass) MD Charter Boat Field Survey MD RM RWpi. -nn- (.idg.n g SURVEY STATIONS ANNAPOLIS, MS MynophYII-piOaM,, (Euissian watemilfoil) Pa P-gm-mrpw (wdy pond-ed) Ppf Poi-g-@rfoliaaE(radhead-gnas) Gd ce-phyu@ &-= (coontail) Citizens Field Observation 031 Ppc P-g- Pcfi- (sago pondweed) Ppu P-g-pwiuw (Blonde, ponameed) Zp Z-h11- palwwi, (homed pondweed) Ngu NajwgwdaIWwL (Bintheni naiad) A VIMS Field Survey N Najw Vp. (naiad) Ngr Nafm gwiflim (naiad) U.S.G.S. & N.V.C.C. SurVey Ec Elda cawdwo (cammon elodea) C Ch- V. (-kgniss) Va Vflawria -i- (vold calery) Nm Najw ivii., (slender naiad) Tn TmP, -- J.W. chasmA) SCALE,1:24.000 U U,kno- pides compa@uan K-R 134 UNITED S ATES UNITED STATES KENT ISLAND QUADRANGLE (DEPARTMENT OF THE INTERIOR U1 .1.1 A-1 MARYLAND GEOLOGICAL SURVEY -11S OF - %LERS 7 5 MINUTE SERIES (TOPOORAPHIC) SUBMERGED AQUATIC VEGETATION - 1987 3 U RM Ppf M YA I Rm ail 41 %---- -61 U ,11-6 M J Ag U Rm c ... f .0 Rm A?,"S L A, RM M Rrh *RM Rm z 2 Rm R @H % @u J BA4,- 9- 8 /AT T S A4 E' A2 CA3 0 .... OjA3 U BBF KA2 Rm R Rh) GA4 Rm AA3 Rm C R A 8 A L L E Y Rm B A Y 3 EA4 -IL ...... EBI C133 NA2 FBLV4,,@ w Rm $Rm DBI PA3 p 41 GB3 T-. -t R DA3 VIA hil- Al- Ppf B4 Rm E A S T E R N B A y In- C KB2 762231 52 3,Y DATE FLOWN SPECIES 8-11-87 Zm zo-'. sion- (..Ig-) HV H)*iIb,miiILa;a (hydnila) SURVEY STATIONS KENT ISLAND, orl, RM Rsppi. snaninh- (widgeon grade) Hd H--hem dbia (water stargrass) k a MD Charter Boat Field Surtey MD Me Myriophylbenspicaria, (Eurasian watermiltoil) Pcr P-gm-n*= icurly poR:..d) Ppf fte%,Mg-.p,,fWi- (rsdh.ad-g-) Cd Cerawphyll@dewnwn(coon .1) 0 Citizens Field ObseNation 032 PPC P.-S @cd- (.no pn&-.d) PpU P-gavepiuslius (shander _dwittid) Zp Zeed,&= (homed pondweed) Ngu Naim guadalWwis (southem naiad) A VIMS Fieid Survey NNgim Vp. (naiad) Ngr NqjgNAxIU-,(muad) U.S.G.S. & N.V.C.C. S.,.y Ec Elodea caradimsis (oornmon 61008a) C C)-sV.(rRU.k9-) Va V.Iii-ni. -,to- (wild celery) Nnn Nei. W.r (slender nevad) SCALE 1:24.000 Tn T,,tp. - (wat-hatim.) Ll Unknown species oomposition 135 UNITED STATES QUEENSTOWN QUADRANGLE EPARTNIENT .1 T.1 INTERIOR An,,A'. 7.5 MINUTE tERIES (TO-1-10 QEOLOGICAL SURVEY 39 - -,'A .-2F Fim r AA. SUBMERGED AQUATIC VEGETATION M"'. ZZ, RM ?p VL .4 OF 2 M E Ri :-3 F, 1. 57- JAI K 4 M H LAI A3 I P R 0 S P' E C T B A y OA3 0, -a WA4 + TAI Rm 7 PAI UA3 C 3 QA3 E133 'A3 VAI G,- E A S T E R N A Rm LAND IN--- 8 A y -1. L ILS L- A... T RA4 SA2 D, ZA4 Rm YA Rm Zp Rm 6 dP DATE FLOWN oel", SPECIES ZM Z..,. -,i.. (asignata) HV Hydkilla wndcill@ (hyddlla) SURVEY STATIONS QUEENSTOWN RM Ruppw nsrubw (widgeon grass) Hd H-,and- dbi, (water stargrass) IVIS MyntophyttIm xp@ (Eurasen watenrultoil) Pcr Po*MDell-w cispw (oudy pondweed) 0 Charter Boat Field SurveY M N ppf P-,,-Ndw@ (rodheadI Cd Mlli@ens Field Observation 033 PpC P-grwnpccDn- (sago pondweed) Ppu P-,Nu,npwiIiw (slender ponctweed) zp (h-d p-1-0 N9U Nqix gwMM,,,=js (southern naiad) A VIMS Field Survey N NAI. ,,- (rated) Ngr Nare, jr-itum (naiad) U.S.G.S. & NN.C.C. Survey Ec El,&, -dwis (Dornmon elodea) C Ch-p. (-s4r-) Va vaumna @n- (mid mlery) NM Nqjar nzt@ (slender naiad) SCALE 1:24,000 Tn TV, nataA; (water chestrun) U Ukn-. poci.. comp-lb., 136 UNITED I ATES ALEXANDRIA QUADRANGLE DEPARTMENT 0 F THE INTERIOR ViRGINIA-DISTRICT OF COLUMBIA-MARYLAND GEOLOGICAL SURVEY 7.5 MINUTE SERIES (TOROGBAP-) SUBMERGED AQUATIC VEGETATION - 1987 W_Ni V #Hvl, A A2i 17- _@H:Cd' "K +@H @M. a WA4 ms tS *ms EIIA2 +V. Id 1. ed v -3- V, d, .... ...... ... DATE FLOWN SPECIES 9-2-87 Zm &stem -im (801graws) HV Hy&ill, FeMcill- (hydrilla) SURVEY STATIONS ALEXANDRIA, RM RWja-ftjRi(WidgSo1graSe) Hd H--/Mmdbu;(wa1ersWgrasiI) MD Charter Boat Field Survey IVIS MyHophyWo,, spicaumn, (Eurasian waternnilloil) Per P-g- cwpw (wity pondweed) VA-DC-MD Plot P-gm.p,,fUw (redhead-grass) Cd C-wphyllmd- (Doomall) Citizens Field Observation 034 Plod P-g-,;M- (-go p@ndwed) PPU P-g-pwilhu (slender pondweed) Zp ZamildMiliapelmois (horned pandweed) Ngu Naim guadaigirmis (sourthern naiad) VIMS Field Survey IMI I --- NNj. Vp. (nel.d) Ngr NW= g-il- (DaDad) U.S.G.S. & N.V.C.C. SurVey ED Ei,*-enad-@ (cor,mon elodea) C Ch- . (.uSkg-) Va Vemiswria -1cana (void celery) N. Aj. m- (send., nald) SCALE 1:24,000 Tn T,.pa - (.at.I.h.sI..0 I I UUnknmn species wmpmition I 137 1.1.411EIN-T-CFS -ES ",UNITED STATES DEALE OUADRANGLE THE INTERIOR GEOLOGICAL SURVEY "In -111 CORPS OF l.N S _L'. SERIYES (T.-P__) SUBMERGED AQUATIC VEGETATION. 1987 -J' 6wy Sid. m Rm Rm V Rm i4. Rm \& B. J 0. @ M t 'y; 0, wil SPECIES DATE F@OWN x-, Zm Z.-@.(-Ig"I HV Hydffl, ,,trinill- (hydrilla) 8-11-87 Rm Rppia -in- (,ndgeon graus) Hd H-mllem dl (,war stargrase) SURVEY STATIONS DEALE IVIS hlfywphyll-pi@ (Eurasian walemilloil) Pa P-gm-mp@ (curty pondwall MD Charter Boat Field Survey m Ppf ftl-lg-@vjill (radhead-grass) Cd C-phy11,,nld-,. (col PPC P-ge-plainaw(sago pondweed) Ppu P-g-pwullu (slender porcilvael Citil Field Observation 035, ZP PlImet, (hOnned pond-ed) Nqu Nj.,-".p-ul (aouth- naiad) A VIMS Field Survey Z-`ul N Naj= VP. (naiad) N r Nly. Cill (niad) U.S.G.S. & N.V.C.C. Survey Ec Et,&, canademir (cornmon elol Cg Chalgv. (MI.Sk9faSS) Va VWIunmia (voild celery) Nnn Njm llldwr (slender nal Tn TV, n-, (vader chestrun) SCALE 01:24=0 U Unknmn species compolution l -Ell 138 CLAIBORNE OUADRANGLE UNITED S ATES M-1- DEPARTMENT OF THE INTERIOR 7 5 MINUTE SERI- 70POGRAPHIC' GEOLOrICAL SURVEY 38-52'3 MA2 SUBMERGED AQUATIC VEGETATION 1987 NA2 N T IS Ma A4 P@4 Rm R A4 --" IA2 A2 Rm M Rm JA2 X OR ORm rr; KAI- FAI 4 % % Rm M -.55 Rm EA3 47 3o' + DAii M. A M 4, ..... % CA 4) A4 (h % Rm ;z@ e 171 F- A4 In A, P@pl- H-b- R M -Y DATE FLOWN SPECIES 8-11-87 ZM zov- -,i. (..Ig-) HM Hydtilfo -killare (hydrilla) SURVEY STATIONS CLAIBORNE, R In lflppw @fi- (widgwn grasa) Hd HM-hm dbi. (water eargraea) MID Charter Boat Field Suivey MID IMS Myriophyli-pi@ (Eur@an watermiltoil) Pcr P-gewn cUp= (wry pordw-ed) Ppf P-geW.p,,fhan,, (redhead-grass) Cd Cerarophyllim, dr- (ooomafl) Citizens Field ObserMation 036 PpC P-g- pecdwri,, (Sago pondwoed) Ppu P-gempWillio (Slender pordweed) Zp &-ichelliapariamir (homed pondwed) NgU Najw gw",pewis (sitithern naiad) A VIIAS Field Survey NNajvp.(..Iad) Ngr Noorgwillima (naiad) U.S.G.S. & N.VC.C. Survey Ec El,&a caraI (common elodea) C Ch-p.(muskgrass) Va vautswria -icara (mid celery) Nm Nayorim, (slender naJact) SCALE 1:24.000 Tin Tr@ roi- (water cheatnutl 1 0 UUnknown species composition 139 UNITED S ATES ST MICHAEt-S UUADRAN C' -1 DEPARTMENT OF THE INTERIOR 15 IIIUTE SERIES IT ... RA111111. GEOLOGICAL SURVEY 1-1 - ILL -/C7- 'SUBMERGED AQUAT Tr. Ic Rhin Y A2 VEGETATION 1987 Rinn-----@" Rm RM Rm M 3-1 B\, A Y T G, L S.A. rA Y Rm i8l M BA3 /Rm fL;A6r j Rnn M DAI M ------- L---- E83 ------- RM EA3 Rnn rn Rm S, ZA2 M a! c FA4 Rrrf p M GA3 ERm I Rm + HA3 k, YA2 -e.- R IA2 RA2 JA3 WAI KA2 43 \OA2 NA4 VA3 LA .4- I IAI R P@ I y (@TA3 QA4 SAI G) RA3 I% DATE FLOWN ,41- SPECIES 8-11-87 ZM Z's-w(eetgrass, HV HydVill, wnwill- (hyddlla) SURVEY STATIONS ST. MICHAELS, RM RIppIa 111him (wridgeon grass) Hd Hn-Sn, dbIa (water stargrass) Me myrophyll-pi- (Euravar, watemidtod) Pcr P-g-oispw (wdy pondweed) MID Charter Bcat Field SuNey MD Ppf P-gI-npdbIkvo(redheadI-gmSs) Cd CmRwphyI1.&w,,wn (Worrail) Citizens Field ObsenIation 037 PpC P-gm.p,cfi@ (Sago pondweed) Ppu P-g-p-11w Islander pord-od) Zp Z .. ih,11LRpIwm, (homed pondweed) Ngu Njw gwd,1wo-ij (-hern naiad) VIMS Field SuNey IN Najw Mp. (naiad) Ngr Najwg=ffIi,, (naiad) U.S.G.S. & N.VC.C. Survey Ec Ebdra ca-denois (common etodea) C Chara,,(m.Skgrass) Va Vallumna o-n- (wild celery) NM Najw num, Islander naiad) SCALE 1:24=0 Tn 7,@ na- (water chestrut) UUnk-n Species -posin- 140 @,ITED. STATES FORT 'BELVOIR QUyADRANGLE 'k`@jiI.EARTMUE T , T.E IR 11A M 0OCICAL SUR@EY 7,5 MINUTE S.E@iES_(7c AP IC E.ATHYMETRIC, EOL' 'RGED AQUATIC VEGETATION -19 x P@ .7, llb@,, 1 ell - @9-1 I 1A L 1_0 W 711 'N --m0r, 47 S H MSHv lit M 41 < + J T. T E@ d Ms A Y-,? C C 0 Q A's B v. Qd DATE FLOWN SPECIES 9-25-871-. Z. Z.--i-t-1grass) H@ Hy&H,o -xillor. (hydnil.) SURVEY STATIONS FORT BELVOIR, Rm Ruppia r-idma (widgeon gras@t) Hid Hem-hem dubia (water stargrassi MID Charter Boat Field Sun,ey VA-MD Ma, Mpirphylf-pf- (Eumian wat.rmilfoil) PCT P-g--hpm (MMY pondweed) 0 Plot P-g-p,doli- (redhoad-graes) Cd C,-phyll. &w- (mortail) Citizens Field Obsewation 039 ppG P-geron p-irorur (sago pondweed) Ppu P-g-pwil1w (sleroder pondweed) ....... Zp Zutrucheffiapol-N, (horned pondweed) Ngu ftjorg-lulpemis (southern naiad) A VIMS Field Suwey NNjw vp. (naiad) Ngr Nora, paciffim (naiad) U.S.G.S. & N.V.C.C. S.,ey Ec EWN,,@,,wu (mmmon elodeal, C C@,,rp. (muskgrass) Va V,11i-ia-,io,Ma(,ildm1Qry) NM NjwWw, Islander naiad) Tn Tva room (water chestnut) SCALE,,1:2@,000 UUnknown sDecies composition 0 141 MOUNT VE MON QUADRANOLE UNITED "-"`7ES DEPART-NT 01 T-IE INTIEWIR Q... 7 5 MINVTE SERIES (T., ITHYMETRIC) _A, MIRIE1 7- v SUBMERGED AQUATIC VEGETATION - 1987 V (+@0s,Cd A4 k-1 96 MA4 M G T, ------- v4: -.4 .7, 4 @4 -Tv Z@ OA N IA4 9H AR4 a *rTv CE13 A ajf,, N /'I @V? (-X v- - v vax @jn T 5-@ ,Hd@ i,@ d H9 4H cd;ms"W@ J,.O @A` ir Mq W v \j u ,Ms C ONI '7@ DATE FLOWN Zm &-'S-d-(.1g-) SPECIES H@ H)*s1iR 11mlillaw (hydnlla) 9-25-87 Rwpia nannum (widgeon gross) Hd Het-&m dbia (waver Staximos) IVID Charter Boat Field Sumey NON, RM SURVEY STATIONS MT. E R Me Myrfqphy1hRspf-,R (Eurasian watemniltoll) PCr P-g-fipw (wdy pondw..d) VA-MD Ppf P.-g-.pvjbhR-(adh..d-j-) Cd C-phylf- d,-- (-ntWI) Cittizens Field Observation 040 PPC P-Sew. p,,don,, (sago pondweGd) Ppu P-g-pwiliw (slender pord-d) Zp Z@cMlipalwmt (homed pond-d) Ngu Nqiw gwd,1wwIu (WWhem naiad) A VIMS Field Suwey NNSjw @p. (naiad) Ngr Nqjwg-ill@ (naiad) U.S.G.S. NN.C.C. Survey Ec EI.&. c.-d,.i, (cornmo. eld.S) C ChSm @p. (.uSkg-) Va vaismnf, (%vild celary) Nm IVajm nts- (Slender naiad) SCALE 1:24.000 Tn TnR,,aRo-(,at-heWnnA) JUnknwn spedes compoSition 142 '%61 UNITED STATES NORTH BEACH GUADRANGLE DEPARTMENT OF THE INTERIOR T1 ES (ToPOGRAPHIC) QEOLOGICAL SURVEY -T 7 -7 7 "'SUBMERGED AQUATIC VEGETATION - 1987 fff 0M 7@- wth B..h Wan B-h tm -a, ,j Z- mi. Cl to p DATE FLOWN 14 ZM Zou .. n-ine (eelg@) SPECIES Hv Hydiii, -icilifera hydrita) B-11-87 SURVEY STATIONS NORTH BEACH RM ftppi, noinfna (widgeon grass) Hd hf-h- d@ia (water stargrass) MD Charter Bost Field Survey m6 Ms my-phylon, spicanem (Eurasian watennilroji) Pcr P-g,-mrno (.my pow-ed) Ppf Fou-gerenperfliamor (redhead-grass) Cd Cearphylim de_wn (ooormail) Citizens Field Observation 042 Ppc P-geuw @-- (sago pondweed) PpV P-gr-@dl. p-dweed) Zp (horned po,dweed) Ngu Nja, goadat,,-U (ac,,thern naiad) VIMS Field Survey N Nj= Vp. (naiad) Ngr Njo,, g-iffimma (naiad) U.S.G.S. & NN.C.C. Survey EC EI,*a canad-is (common elodea) C C@. @p. (..skg-) Va Vdh-rid -ke. (wAd calery) Nnn No-i- (slender naiad) SCALE 1:24,000 Tn Tapa nanvu, (water chestnts) U Unknown spades composition 1 0 A K-ETER 143 UN IFED S A FES UNITED STATES TILGHMAN IUADRANIII I DVPIRTM ENI.OF THE INTERIOR -An -1 1@ Hl@ 1-, ',GEOLOGICAL SURVE y M SUBMERGED AQUATIC @4 Rd" U RM VEGETATION 1987 U D-, LA2 Rnn RM U R A2 NA2 A2 KA2 A2 OA4 U* R JA2 PC H FA4 RA2 Z Rnn EA IA3 c SA2 o, U Rm A, TA2 UA2 Rm r4 M I s L A VA2 Rk U WA3 A3 YA Rhin Rm IM P_' ZA2 AB4 URini 0 '45 *Ground truth provided by Court Stevenson of University of Maryland, Horn Point Laboratory DATE FLOWN SPECIES 8-11-87 Zin zo-nanna (..Ig-) Hv hly&ffla wmcillw, (hydrilla) SURVEY STATIONS TILGHMAN, RM RWpia @@ (widgeon grass) Hd issia (.M.r atarg-) MS Hyiphyllmploanon (Eurasian atemilfoil) Pcr P-g-mpw (wdy panctweed) E MD Charter Boat Field Survey MD PPf P-8M.p,,jbtisao(nschead-grass) Cd C-,phylhon d-- (coontai 0 Citizens Field Observation 043 Ppc P-g-, P,,dmw (sago pondweed) Ppu P-g-pwillw (slender pondweed) Zp (homed pondweed) Ngu Neim pedld@wis (southern naiad) A VIMS Field Survey IN Njmpp. (nahad) Ngr Nojwpwalinu; (naiad) U.S.G.S. & N.V.C.C. Suivey EC Elldl, oanl&nsil (COMMOn Wades) CCh- V. (muskg-) Va Valhmd, a-fi- (wild Wary) N In Njw mns, (slender naiad) Tn Tqso nsran,r (water Chestrud) I SCALE.1:24,000 U unknown species comlooeftion 144 CEPAR"INITED STATES UNITED @TATE OXFC)i@D 0UADIkAN,;1.E MENT OF THE INTERIOR FMENT OP 11E ARMY V, GEOLOUCA L SURVEY COR PS F 14-1 @QH@Ibl- -.@d b Co'urtSteve ,-"n I of @li y er' tj Hbrn Point Vboratory MERGED AQUATIC VEGETATION 1987 t % % ----- - % ------------ M .-Eys M E C I B 3 Rm % Rm Ppu m Irk A DA3 A Y 0 X F 0 R D N E c Zp 3 % m + PC PPC L A N D'@NKE C I 0 R 2' A,- It" V c-, c.- eft@ 17- .T- L DATE F LOVA 41r` SPECIE 8-11-87 Zra Zos-, R-iw (oolgrass) SHM Hydfilla -will- (hydrilla) SURVEY STATIONS OXFORD, RM RWpil Mlaim (WIdgeon grasa) Hal H--h- d@,, (,ater stargrass) MD Charter Boat Field Survey MD MS (E.-ieR Pcr P-gee- @p@ (cudy Pand-d) Ppt P-g- peflialus (radhlac-glns) Cd C-wphyll@ dw,,. Jccomail) Citizens Field Observation 044 PpC P-gewn perfi@ (sago @n,!M,eedl) PpU p-gew.pwjjjw (slencer pond,eed) Zp [email protected] h.rred mind-c!) Ngu Najw gwdRjV-j, (so.th.rn naid) A VIMS Field Survey NN@jw pp. (Reject Ngr (na,.d) U.S.G.S. & N.M.C.C. Survey Ec Eld,, cawdmis (common elodcal C Ch- Sp. (muskgrass) Va V,11u-ri. -xw. (mAld celery) Nm Njm @iw, (Slender raiad) SCALE 1:24,000 Tn TAp, w,w (y,ator chem-) uUnkno- species cornposaion M--R 145 UNITED STATES TRAPPE QU ADRANGLE DEPARTMENT OF THE INTERIOR M_LA GEOLOGICAL SURVEY 7S MINUTE SERIES (`T`QPXRAPHI,1!h1- E D M U N 0 S 0 1 N4 0 Gr tr th, ihd@ SUBMERG.ED AQUATIC VEGETATI N 1987' i of Pmr ylon - - ivers 111 1. .1 Lao atory Q A AI I E I S I, c C- . 7 H.@;U- T 0X F @OR D I E C K .%. *ZP zi- 771 38-3730 b-AtE FLOW@16@ SPECIES 9-1-87 ZM Z-'@W(eelgnass) Hv Hy&W, waxill- (hydnila) SURVEY STATIONS TRAPPE, Fire R,Ia @1@ (.idg-n gn-) Hd H-thin, dbiiz (water stargnass) Me myfiphyll. spi- (Eumian wat.rmilfoil) PCr P-gm. criip= loudly pondweed) MD Charter Boat Field SuNey MD Ppf P-g@p,,Jbliaw (redhead-grass) Cd C,,-phy11,,n, de-s-i (montail) Citizens Field Observation 045 Plec P-ge- p,cfinatw (sago pondweed) PPU P-ge-pwdlw (Slander pondweed) ZP @..khdlipal.,Niu (h..ad pond-nid) Ngu Njm g-"Vewu (Wuthem naiad) A VIMS Field Survey .1. NNj. ,, (n.i.d) Ngr Njo gwillim (naiad) U.S.G.S. & N.V.C.C. Survey Ec Ew-,nedemis (common etmea) C C@-p. (muskgravs) Va V.Ilii-i. d-ic- (wild I.ry) NM Nlj= imi.,(slender naiad) SCALE 1:24.000 Tn TN;pa -, (water chestnut) UUnknown species composition 146 UNITE D STATES QUANTICO OUADRANGLE Ro MAIIIANI V:E ..1ART..NT .1 1.. INTERIOR 7 5 MINUTE SER 91 `t". GEOLOGICAL SURVEY 'Nie -31 T) ,'SUBMERGED AQUATIC VEGETATION 19 %l -IN 3 g ILI g 3@ ,6 -69 IV 4, 4,1? 4- 3 71- 1 1, T1 47 7 I A@l 8A9 7, AA4 q. DATE FLOWN Zrn Zs- -Nw (eelgrass) SPECIES Hv H,@I11c,rrtfiIia,, (hydrilla) 9-25-87 SURVEY STATIONS QUANTICO, R. RWpia @ifirra (.dg-. g-) Hd Hr,.,&,, cht,i, (,star margrass) MD Charter Boat Field Survey VA-MD MIS Myfiphyll-ick- (Eurasian watemilfal) Pa P-8- crispw (mdy pord-ed' Ppf P-geicrpefliaw (redhead-gras,i) Cd C,,.Vhyll- de- (-rrail) Citizens Field Otservation Ppc P-g-p-irata, (sago pordweet!) PpU P-g-pwiltw (slender pn...d) 047 ZP Zc@,Wfwp@.,@ (h,m,d Wrdweetl) Ngu Nj. gi-lafwMmu (tiouthen, n,iad) A VIMS Field SurVey N Nj. @pp. (naiad) Ngr NI grailln, (naiad) U.S.G.S. & N.N.C.C. Suey Ec Ew,, ce-temu (common elmea) C CiaN,,p. (muSkg,ass) Va Vallismiri[a -ica,,a (wild calory) Nm Netia iIu- (slender naiad) SCALE 1:24,000 TIT Tc,,e -, (water &OW-) I MILE U Unknown species conipwition --r 147 % UNITE STATES UNITED STATES INDIAN H AD QUADRANGLE DEPARTMENT OF THE INTE IOR DEPARTMENT OF THE ARMY an A.ILAND-VIRCINIA NUE 51 1! GEOLOGICAL SURVEY WRPS OP ENGINEERS - ----- E. QUATIC VEGETATION 1987 SUBMERGED A 0 C C 0 y @UA @7 s,Hd 8,HvVp,H F H F, ZE I, t ul 1, V V .M .b- C. $2 OgAfo A'i 11TTA U 8 NAVAL @RESERVA'1'10-@ 1A Bill A2 - --------------- x, ...... ------- DATE FLOWN Zm &'mm mdm (801grass) SPECIES Hv Hy&ille -will-, (hydn1la) 9-25-87 SURVEY STATIONS INDIAN HEAD, RM RWpw mrimm (widgecnt grass) Hd Ha-h- dbia (.ma, warg-) S MD Charter Boat Field Survey IVID-VA MS Mynophyll-pi- (Eurasian watenniffoil) For P-g-,ispw (ct,dy pondweed) Plot P-gvm@,Jbu-, (redhead-gi-ase) Cd C-phylt@&- (womail) 0 Citizens Field Observation 048 ppC P-ge-p-Inernir (Sago pond-ed) PPU P-gmrpwiiIw (Slander pondweed) Zp Zervdc1,11ipIwad, (horned pondeed) Ngu Njw g-ddwen,is (SOUthem naiad) A VIMS Field Survey N Njw W. (naiad) Ngr Najw g-fflim (naiad) U.S.G.S. & N.N.C.C. Smey Ec El,&, c,,a&w& (mmmon elodea) CCh- . (.U.kg-) Va Valli-H. -fi- (.0d celery) Nm Nqjw dw, (slender naiad) [email protected]:24. 0 Tn T@ @ (water Chestnia) J Unknown spedes composition -a. 148 BEN-ICT QUADRANGLE UNITED STATES All I "I EPAR MENT OF THE INTERIOR GEOI-OGICAI e,\ .'SUBMERGED AQUATIC VEGETATION - 1987 1P gig a 0 If @p 7 f6. -.A L U", x ve Q:j J: Q, P1, C CH H L J,@ C@, 71 DATE FLOWN SPECIES 10-5-87 ZM Zen--m(eelgrass) Hv Hydrille -i,ilku, (hydrile) SURVEY STATIONS ---,,BENED1CT, Rm Rpna-irnha(vwdg.ng-) Hd He-&,, dbia (water margrass) If E MD Charter Boat Field Sunney Ms Arymphyll-pic,,aw, (Eurasian watennitoil) Pcr P-g-isp,,, (curly pendweed) MD PPf P-g-n@nfih- (redheac@ghass) Gd c,-phyll-,d- (coontail) $ Citizens Field ObseIvation 049 PPC P-g-.p-iheh@ (sago porchwed) Ppu P-g,n,hp,,Li1I,,, (slender pondweed) ZP Zahhucheffipel- (horned pondweed) Ngu Nja,,g,kk1a1@-(sohh,rnhaaI A VIMS Field S-ey N Nej-pp. (naiad) Ngr Naj. gnecille- (naiad) U.S.G.S. & NN.C.C. Survey Ec E1e&.,a..&.u (corrmon elodea) C Cher, v. (muskgrass) Va Vallish,fia -i- (wild celery) Non Nen-W- (slender nI SCALE 1:24.000 Tn Tr@p. - (.star chEstnut) 1 0 1 'ILE J Unknown species cohnpo@ction 149 UNITED STATES DEPARTMENT OF THE INTERIOR HUDSON QUADRANGLE A GEOLOGICAL SURVEY MRVIAND 4 7.1 NPIM SERM ORTHOFHM@ (TOPOG -ov $AV beds verified by Court Stevenson of Ui'lVersity of Maryland Horn Point Laboratory CH0P?A*7'K"IVER SUBMERGED AQUATIC VEGETATION 1987 4 C YA3 XA3 r R Vp P E wA3 Rm 3 q_ Al Y UA3 d Rm A4 CA2 m + NRm s p"' A2 A A R Rm A *Rm in 0 0 A6&-. ee;:44 JA3 KA4 + FA3 MA21 - .7j GAZI R .111; A3 mRn -iz p r A N K Z1, 4@ AA3 R ORM 0 DATE FLOWN Zm Z@ @tw ("Ig-e) SPECIES HV HY&ft -*W- (hyddW 8-21-87 RM Rwpl. -Id- (.idpw q-) Hd SURVEY STATIONS HUDSON, Ms JwrivAyUmipf@ (Eumsian wm.nnM) Par P@g-- -w- I-dy P.-A-00 MD Charter Soat Field Survey PPf Pa--S@ pf.0- (.dN.Og-) Cd C.-*Wh-d.-(W.#sJn MD- ppc P--g@p-@(-wpmdw-ffl PPU P@s@pwfflw (slendw PonftwM Cilizens Field Observation 051 ZP Z---p--b (Wd Widweed) Ngu Nqw (wft. mW A VIMS Field Survey N No. W (naisdi Ngr N4wV-L-(-1ad) Ec Ek&. -dds 610dee) c ch-'p. (musi,;;@) U.S.G.S. & N.V.C.C. Survey va VaU-fa-k-(@W..Wly) Nm N4w,,hw (dendw nwoo Tn T1V-(w8Wd.Wa) SCALE.1 24.000 U Uftn@ spsdn W.D=W@m 150 WAR DEPARTMENT MARYLAND CORPS OF ENGINEERS. U. S. ARMY CHURCH CREEK QUADRANGLE c 715 MINUTE SERIES Ground truth provided by Court Steve U University bf Maryland, Horn F ,oint " or. /0 _;n,of SUBMERGED AQUATIC VEGETATION 1987 0 *U X V --------- 7- HA Rm Ppe 1AI OA4 Rm Hills Poi@* KA ri U L'E C 0 M P T E 8 A Y 7 C,r,,r, v,II loyd 0 N 0 N N ........ ....... Wrights .... ....... --------------- ---- -- - A M L. B R I D G E ------------ EA A ip R Ppc. Rm -4 N 0 7 C, % Dal-lis', 77 N !Ir- M 1" C, -s I P /-s h ny, BA Rm A S R A@ D YN, 0 6 --R 'u C H U/' R C H @C E E K N 9 Chu,,;h Creek -4 (GOLI DATES FLOWN SPECIES 8-21-87- Zm HV H),dnifin-fic,11- hydnlla) SURVEY STATIONS 9-1 -87 CHURCH CREEK, RM RWpiei nuariti- (iridgwri grass) Hd Hamorhem dbi, hoster stargrass) E MD Charter Sciat Field Sumey Me Mynphyll-pic-n (Eurasian w-t-rmI1fcnI@ PU P-g- cispiu (cudy pondwood) Ppf P-g-pefolienu, (redhead-grass) Cd c-phytoon d- (momail) 0 Citizens Field Observation MD PPc P-g--d-, (sag, WwM,eed) Ppu P-g-p.mur (slower Pandeed) 052 ZP Zaruddrifiapolouris (horned pondweed) Ngu Naj= g-"Wemu (Widthern naiad) A VIMS Field SuNey N Njw vp. (naiad) Ngr Najm g-illino (naiad) U.&&S. & NIN.C.C. Surey Ec EI,&,a camdwi, (mm-, elordlea) C Cher,; sp. (Mskgrm) Va vuu-i. -scano (ioild I.,y) Nm Arqjw@-(slewernaiw) Tn TePe norriou, (water chostnurn rr SCALE 01:24,000 1 11LE U Unknown species mmp@dion I -E. 1-51 UNITED STATES CAMBRID@,E QU'A.DRANGLE EPARTMENT OF THE INTERIOR 41,11 rEOLOGICAL SURVEY f Univ; Yo rIt 2p J.. sjtty!@@ @@iStZ4 B.,,@ ZP B SUBMERGED AQUATIC VEGETATION 1987 Z U - U .72 ........ ;cu *Rm *Z *Rm 3@ AMB IDGE J 0 X ? - - - - - -- - - - - -- 6 + Av ...... -7 Al ..... . ..... 38 -j- '07 2 30' I'll DATE FLOWN SPECIES 9-1-87 Zm Z-Mmariro(oolgrasa) Hv Hyddika wM611,no (hyddlla) SURVEY STATIONS CAMBRIDGE RM Rppw -irv. (.idg.n g-) Hd H rh d-bia (-to, stargress) Me Mywphyll-pi@ (Eurasian @ermillOil) Pcr P-g- upw loudly pondweed) MID Charter Beat Field SurVey M p fta-gew,pefoi@ (redhead-grass) Cd C-phyflun dew- (coortail) CED, P f Citizens Field Observation 053 PpC P-g- p,cd@ (sago pondleed) Ppu P-g-pwc11w Islander Dord-c!) Zp Zo,@,@flwpfwnft (homed pondweed) NgU Njx guadlpewis (southern naiad) A VIMS Field Survey N Njw spp. (naiad) Ngr Njw g@cillim (naiad) U.&G.S. & NN.C.C. Survey Ec El,@, -,*wis (common elodea) C Chara sp. (muskgrass) Va VaUismria a-ri-a (MId Mlery) NM Islander naiad) SCALE 1:24,000 Trr U UnImmn species com@,,shioh 152 UNITED S ATES EAST NEW MARKr,@,(,@UADRAN(@L[. DEPARTMENT OF THE INTERIOR 'A " . GEOLOGICAL SURVEY 11 1INUTE SERIILI I In, 4ruth provided j LCo4t@j Sll@w@v@jnsn of *Gro, Uni ity 'f A@n 0 -M..r 91 @,.,SUBMERGED AQUATIC VEGETATION 196@ N- .-t t0 4;1 L & 32'- - 41 *It 4 J, @Z DATE FLOWN SPECIES 9-1-87 ZM Zartera inanna (eelgrastt) HV Hydi1IL,eddI1w, (hydrillat SURVEY STATIONS Fint RwPian-inn'(widgeo'graos) Ad H-ma - (water sta,,rass) EAST NEW MS MydqphyiIw, spiaunn (Eurasuin watermiltod) Pcr P-gn..,@P. (-fly Pndwri MD Charter Boat Field Survey Ppf P-g-.p,,fn-(rdhead-gRdsa) Cd Ce-,phytim demr- (coontailt Citizens Field Observation MARKET, MD Ppc P-gm. P"anan,, (Eago piandweed) PPU P-s-pwill. (Slerdler andweed) 054 ZP (h,mac! I,,,naweed) Ngu Najw g,-Ialwemis (soLithern naiad) A VINIS Field Survey NNj. @pp. (n.id) Ngr Naj= gnaallim (nErad) U.S.G.S. & N.V.C.C. SuNey EC Eld,, caadlewi; (mmmon elodea) G Ch- sp. (muskeress) Va vam ... ia -scana (wild mlery) Nm Naja, naw (slender naiad) Tn Tnqw wmw (water chesirain SCALE "1:24.000 'ILE UUnknown species mrnposition 153 N UNITED STATES I ^;@@ COMMONWEALTH OF VIRGINIA WIDE-ATER QUADRANGLE -y, DEPARTMENT OF THE INTERIOR DIVISION Or MINERAL RESOURCES VIROINIA- MARYLAND 1-21 GEOLOGICAL SURVEY 7.5 MINUTE SERIES (TOPOGRAPHIC-BATHYMETRIC F10 -Z 7 7VT@__,-1 k7T DA 'OUBMERGED AQUATIC VEGETATION 1987 @E ru jj 451 CAG,` #H,4,\(O,Cd, Me MN3 A') V ilAq 4 Al ps Va,mS 142- + A All, d f A 41 DATE FLOWN SPECIES 9-25-87 Zm &,wa ,,iw (eelgrm) HV Hydfill,i wMeilix, (hydH11a) SURVEY STATIONS WIDEWATER, RM RIppia =ruinia (widgeen glass) Hd Hm,,,hm @ui (waler stargrass) E MD Charter Boat Field Sumey VA-MD MS Mydp0URR,,picanRR (Eurasian watermitfoil) PU P.R-geR,,incpR, (WrIll pondmed) Ppf P._9-,,jvIi@ (redhead-grass) Cd C-wphyll-, d-uR, (wontml) 0 Citizens Field Obsetvation 055 Ppc P-g,_,.d_ (Sag. pDDd-.d) Ppu pRRR-,,m,,pRnIIw (slender pondweech Zp Z2"u"'elli-paturni, (horned R.IrIdaad) N9U Najm gudIWw4 (Southern naiad) A VIMS Field Survey N .(naiad) Ng, Nay. g-ilri- (rumad) U.S.G.S. & N.V.C.C. Survey N.j. @pp E@ El,@, mnn@wss (OcnDmon 810dea) C Chs,. . (-kgrass) Va Vallf-i. -n- (WId Wary) Nm NajoRum, (slender naiad) SCALE 1:24,000 Tn Tx@ - (-- chestnut) U UDI-.n.peci.-@rImn 154 UNITED STATES NANJEMOY GUADRANCLE DEPARTMENT OF THE INTERIOR GEOLOGICAL SUR@EY SUBMERGED AQUATIC VEGETATION -1987j,'@, V@ Z@, 0 Al v Ak t jr c@ jn,@ J/ Q _j IFA4 CREEK ca@ W CA4 -7 I_)A4f _7 4 EB,4 > 7- 0 t_ M \k. N@, f 0 rr". -;F-y P@ to 141, Y 's a /!Q, x > a, Ppf A4 Ac@ Vb,Ppc L . .............. DATE FLOWN -25-87 SPECIES 9 ZM Hv Hydi wnl (hydrilla) SURVEY STATIONS NANJEMOY, RM Rppia RRinfim (vAdgeon graoai) Hid H-al dubia (water stargi-) MID Charter Boat Field Suriney MD ME Myrlphyll (Eura,iian watenrrili Per Pjal cni (wily pardwood) re Pot P.-,,,..pjbAa- @nxfh..dgnasal Cd Camphyll-d- (oocirl CitiZens Field Obseivation 056 PPC P-g- N,d,,arR, (eaga pond,eed) Ppu P.-g,,-pwmw (slender pondi zP Zarinichellil (horned pendweed) Ngu Njx (soinhern naiad) L VIMS Field S.1sy NNajo spp. (naiad) Ngr Najar gwillim (naiad) U.S.G.S. & N.V.C.C. Survey ED E@, cal (=,man e1wea) C Chair. . (nnu.1,graes) Va Vallil ani (wId celery) IN m Naja, nu., (slander naiad) Tn Tna,,a wraw (@ter chestnut) SCALE.1:24.000 IJ Unkno,n species composition 155 MATHIA POINT OUADRANGLE UNITED STATES MARYLAN -VIRGINIA DEPARTMENT OF THE INTERIOR UT 7 5 MIN E SERI ToRoGRA-IG) GEOLOGICAL SURVEY B4 T 7-1 ouolincRIGED AQUATIC VEGETATION - 1987 14 B4 A; (Ell WY Hp -a /0' FB N MA4 N voll P@ A, PPT _13 0 -a KA2 ;41 42 Va,ppf 0 JA2 A, Vo Ppf 0 0 @rA 2 Ilpf 0 + 0 HA3 Be GA3 P" .@m \@k Ppc' P, R EA4 va,Pp IfI va 0 1p 0 DA XA3 0 A 0 0 0 M/@I` H I A S R) 0,)N T' 1. I N Et'_ c Al 0 I In AA2 DATES FLOWN 9-25-87 SPECIES 10-5_87 Zm Hv ify&wla w@,w- (hydni(a) SURVEY STATIONS RM RIppia -dw (wWgWn greSS) Hd Heto-@w dubia (water stargrass) MATHIAS POINT, IVIS ffywphyf@,piw= (Eurasian aztern0od) Pcr Pom-gem. cdspw (wny pondweed@ MO Charter Boat Field SuNey Ppt Pj-gew.pefjjaw (rodhead-grass) Cd C-pkyII-&--(-MjI) Citizens Field ObseNation MD-VA Ppc p.A-rI- @c,,i@ (sago pondweed) PpU Pon-g- pwillw (sionder pondmeed) 057 Zp ZaadchIjjapa[- (hoMed pondwaad) Ngu mqio guadalvewis (aduthem naiad) A VIMS Field SuNey NNajm Vp. (naiad) Ngr Naiwg-illi., (naiad) U.S.G.S. & N.V.C,C. S.1ey EC EJ,&a waAdewis (common alodea) C ch- V. (.Ukg-) Va vawAm,,ia a-n@ (vaid mlery) Nat Naim mim, (slender naiad) SCALE 1:24.000 Tn T,@I-(watorchevnut) UUnk-..Pd.-p..6.n __j 156 TE UNITED STA U TEO STATES POPIE@ IFEEK CIA OE'AR'MENT OF THE INTERIOR ... ,DRANGLE , "y c GEOLOCCAL SURVEY I s -.1L sl"Es J-cs-l "E-1 IT- \NK 3, 1987 '.@@,SUBMERGED AQUATIC VEGETATION '7 v a 21 273LY @� \\,fift 7-' /* 25 MIL < H N, "y 7' IJ @v I C 0 Z3T DATE FLO N ZM @'-(Gelqrass) SPECIES Hv By&ffi, -11- (hydrital SURVEY STATIONS POPES CREEK, RM RWpm -,I- (.idg.n g,-) Hd H,w,,,,hm dbi, (water sta,grass) 4 a MD Charter Boat Field SuNey MD ME, Mysvhyllmvic- (ELmsian watermiltoil) Pcr P-g- uLipw (mrly pondweed) Ppt P-g- Wobll- (,redhead@gracs) Cd C,-phylisr,I d-l- (coontail) 0 Citizens Field Observation 058 PpC P-g-p-i- (sag. prcw.,I Ppu P-g-pwillw (slender pordweed) ZP Z-mch,11i-l-d, (h-ad pnd-Ed) Ngu Njw g.."W-i, (scnhern nsad) A VIMS Field SuNey NNcf-pp. (naid) NgT Nafg-M.(nWad) U.S.G.S. & N.M.C.C. Survey EC Eld,, mw@mi, (common eiDdea) C Ch- @p. (..Ekg-) Va VJ1i-n-(w,)dW11y) Nnn Ngim-islarde-jad) SCALE 1:24,000 Tn T,@ - (water chestnw) 0 1 ILE UUnknown species composition wETE. 157 MECHANICSVLLE OUADRANOLE ."11C. S AIES MENT OF THE INTERIOR .-R-LOLO 'IT GICAL SURVEY iUBMERGED AQUATIC VEGETATION - 1987 A @A2 Tr- H.11 u 'g Ppc Ilk a y 2 'C P IX X, A-% 71 @b 10 > oo Z7 'A7" '4' DATE FLOWN 4, ZM @ra, (eeigrass) SPECIESHV Hyilili,, @,ulara (hydnila) 10-5-87 RM Rwpia nand- (widgeon grass) Hd H-,anah- Win (warer slargrass) SURVEY STATIONS MECHANICSVILLE, Me Myhophyll-proarion (Eurastan watermilioil) PC[ P-g-np@ (c,nly pondweed) MD Charter Boat Field Survey M D Plot P-g-pefMana (redhead-grass) Cd c-rphyii,,,n ain- icuorrai) PPC Pra-ge- j-dnaa@ (Saga pord,,,,eed) PPIJ P-g-p@iih,, (alender ponoweect Citizens Field Observation 059 Z PZanrrfchellia,r,a1,offfr (horned pondWeed) Ngu Naja guadfalw@i, (sowhem naiad) A VIMS Field SurVey NNj. @pp. (naiad) Ngr Adf. gnociffirna (naad) EC Ebdea canad-is (common elodea) C Ch-V.(.uskg-) U.S.G.S. & N.N.C.C. Surrey Va V,114-ia -icand, (Wid celery) Nm hdfa@ nrfro, (slender naiad) SCALE 1:24MO Tn T,@r-,(werercherann.rt) JUnkn..n @pedes cornacen" 158 UNITED STATES B DOMES ISLAND QUADRANGLE MAR LAND .__,MENT OF THE INTERIOR UTE R @PHIG) ,,,qICAL rUIVEI " 4"'4- MERGED AQUATIC VEGETATION 1987 -Z5 L ow v @b Y' -/7 4 GA N' J FA2 ly" 1)42@ I CA2 v, EA2' BA Ak@? A3 -2 . .. ....... 4" DATE FLOWN SPECIES 10-5-87 W' Zm Hv Hydnik wm6lix, (hydrillat SURVEY STATIONS BROOMES Rm RVha @'L- (widgeo. gmss) Hd H,.,-h dbia (were, shargrass) IVIS Mynophyll-picaneh (Euravan watermilloil) PCr P-g-,,U;nu (mdy pondweed) VID Charter Boat Field Suivey ISLAND, MD ppf P-'-"ff@ (redhad-grasst Cd @vconwI, Citizens Field Observation 060 PpC Po-g- ,fina- (e.go Prdwed) PPU P-g-pwiliw (slender pordweed) -11 1-1. Zp Zanm,@flwpWwm@ (homed whchwed) Ngu Njw g@@wa (southern naiad) VIIAS Field Surey N Aqj. Vp. (n.isd) Ngr Njw gr@illhha (naiad) U.S.G.S. & NN.C.C. Suivey EC Ebd--d-@ (mmmon elodea) C Ch- V. (muskgrass) Va vwlisnefia -i@ (wild celery) Nnh Nay-dw, (slender naiad) SCALE 1:24,000 Tn Tnpa - (water chestnut) I wn@ U Unknown species comp@Mon 159 UN17ED S TIES MENr OF THE INTERIOR COVE POINT QUADRANGLE GEOLOGI!@L SURVEY SUBMERGED AQUATIC VEGETATION 1987 NE + E.-E. 11 TTS STATE 'A Zp p'. C-;P- BA3% AA3 Eto@ DATE FLOWN SPECIE 10-5-87 IeO Z. SHV H)@I@ -kilim, (hydrilla) SURVEY STATIONS @.-COVE POINT RM RppJa r-i@ dgeon gras) Hd Her,,SASh,,S @ia (@er starg,ass) MS Afyriphyllmpi:@ (Eunasian -miltod) Pcr p-g-npw (wAy pondweed) MD Charter Boat Field SuNeY m Ppf (redhead-g-) Cd Ce,,wphyli@ de-S (womail) Cdfizons Fied Obsewalion 061 _0 PpC P-g-pecdnanEr (Sago Dond.-ad) PpU p-8m,pwijjw (slender Dondweed) 1"7 Zp Z@clihnp@wou (horned pondweed) Ngu Najw gwdatwmis (S-hern naiad) A VIMS Field Smey N Njw vp. (naiad) NgT Njg,.cf&- (naiad) U.S.G.S. & N.V.C.C. Survey Ec Ekdea -wdewo (cornmn abdea) C Ch-, jrr,.kgass) @@VE =1r Va Valluneria -d- (Wid celery) Nm Najw mni@ (slender naiad) SCALE 1:24.000 Tn TA,-(-S-hEtnW) U UnimGwn spedes compoaffion 160 UNITED STATES TAYLORS ISLAND QUADRANGLE DEPARTMENT OF THE INTERIOR M-ND GEOLOGI@@SURVEY 7.5 MNME.SERIES ORTH.OPHOTO G _@IAP (TOM RAPHIC HA %FA2 SUBMERGED AQUATIC VEGETATION - 1987'@"' P, w IAI lit, 7 C, 2- + 0 *a3 BA21P, A1f2 .-taw f 41! + A., kk p Nil, rh 4 DATE FLOWN zm Z- eart. (sowasw SPECIES HV Hy&Wa wdcfflm (hordla) 10-5-87 SURVEY STATIONS TAYLORS Rm ftp& -W- OAdpm graottil Hd H-mahm &,bla (water starg'ate) MD Charter Boat Field Survey ISLAND, MD @43 Mpi*Wl- *I- (E."- .0-illod) PCr Pm-q@ cArpw (cudy pondweird) ppt Cd Citizens Field Observation 062 ppc peateenewep-batee(sop 0 PPU P-1-punflur (00,491 pofteed) Zp Z-Adw&Wph-b C, or-d p.0-mil Ngu AW. g-&hwb (-AM. n-4 A VIMS Field Survey N N4kwjW (nalso Ngr N4W I-Ob- (rudaM U.S.G.S. & N.V.C.C. Survey Ec Ebd. -teau (- madw C Ch-*.(-ftr&m;) vs VobwHdwaad@WAdo Nm Njw ee- (weade, nawA Tn Tw. - teemear datoax) SCALE .124.000 U Uniummonpdescorniamitiort 161 UNITED STATES GOLDEN HRLL QUADRANGLE DEPARTMENT OF THE NTERIOR M-ND WRCHESTER GEOLOGICt SURVEY ERIES ORTHOPHOT071' (T0P0G"7..4':41 SUBMERGED AOUATIC VEGETATION -1987K4=t- IMAM xopow J K WT 'A j; p"' d- ATER IFE REFUGE 0 DA3 A BA13 .-A4 RM)c NP LiN 4 'i P.- DATE FLOWN SPECIES 10-5-87 Zrn zo,". -d- (..Ig-) Hv hly&illo -ocilim (hyddlia) SURVEY STATIONS RM Ruppia madd- (widgeon grass) Hd H--Ae. dw. (wat., statrii-) GOLDEN HILL, MS Myiphyii@ jpt- (Euraslan maerm1foil) Per P-gm,-ipw (cuny pnd--M MD Charter Boat Field Survey ' MD Ppf P-g-pcf,4aw (redthead-grass) Cd c-@hyii-d,- (coontail) Citizens, Field Observation 063 PPC P-g-xcd- (sno pondh@eed) Ppu pononoganApwitim (slander pondweed) zP Zannic&lliapaf@ (homed pondweed) NgU Najw gdolWewis (southem naiad) A VIMS Field Survey N Nojo W. (naiad) Ngr Najw gwilhm (naiad) [email protected]. & NN.C.C. Survey Ec Elodea cana*wi, (common elrea) C Chara sp. (muskgraus) @YA Va vauim,,ia-ioana(vAwcei9N) Nm Nqiwdw (slendiir najadj SCALE 1:24.000 Tn Trapa An- (water chestrut) U Unknwn spoon composition 162 0 UNITED s ITE5 .....NwEAITI .1 V111.114. KING GEORGE QUADRANGLE _,.@MENT OF THE INTERIOR 111E11L "ElUK11 LA GEOLOGICAL SURVEY -=P 7 5 MINUTE SEXECSIMi'd" 111@Cu DATHYMETRIQ in U, -11 U PpcCd 4 4A@l BA2 SUBMERGED AQUATIC Via VEGETATION 19 CA2 Va,PpcCd FA2 EA2 A3 p p p -01 Z, '0 7 -sr- J. 'n - y-1 %J- '41 11-t 77-11 DATE FLOWNZ,,, t, SPECIE 9-25-87 S Zm Z- rnsins (eelgrasa) HV Hy-11, widifar, (hydnlha) R.ppid -inin. (widgeon g,m) Hd Hrrearsh- dwhi, (,star stwgrass) MD Charter Boat Field Survey VA-M6 RM SURVEY STATIONS KING GEORGE k MS Myriophylitun, vi,a,u,n (Eurasian atermilknt Pa P.&Mnegem-upw (mdy ponow"d) Pot P-g,W.p,,fIm= (redhead-grass) Cd C-.phyfluw d- (ooonlail) so Citizens Field Observation 065 Ppc Poianrng-p-insau (sago pondwead) Ppu P-g-p.mu, (slender pondwe -- ----- - - ZO zunichelliapalurd, (horned Dondweed) Ngu Ivajar guadalpmu, (southern naiad) VIMS Field S.rvey N Nja, Vp. (naiad) Ngr Naim gre,illim (naiad) Ec EId,, -&mu, (WiTmon elodea) C Chaarp. (..akg-) U.S.G.S. & N.V.C.C@ Survey Va Vallisurra snuerh,ans (wild wiery) Nm Naj. mim- aiinds, n.iW) Tn Tra,,a krneu (water chestnut) I SCALE.1:24,000 U Unknown species mrripmnon le-Ea 163 UNITED STATES DAHLGREN OUADRANGLE DEPARTMENT OF THE INTERIOR COMMONWEALTH OF VIRGINIA "A A I DIVISION OF MINERAL RESOURCES (RT=APHIC) EOLOO CAL SURVEY JAMES L. CALVER. STATE GEOLOGIST ;@;j -1 ...... P 0 T,O M A R I V E R SUBMERGED, AQUATIC VEGETATION - 1987 M T 'I AWO "I, I DA4 4 @2 u A L R,E E 4 S,n*M1A _:o + A /v n CA ----- ----- c- A\ U 8 N' A V A L/;k E N`E MV A'@ I X 4, -j J ',4 r All "I'D DATE FLOWN Zinn @,-iw(901grasa) SPECIES Hv Hydidt, -ticill- (hydrilla) 10-5-87 R. R@pia -uinta (wdgeon g-S) Hd H-nmih- dbi, (wine, stargrese) DAHLGREN SURVEY STATIONS IMS Myfiphyll. spi- (Eurasian watermilfoil) PCr P-gm,-,ap@ (@dy pondweed) MID Charter Boat Field Sumey VA-MD lopf P-g-pmiWww(redheadgrase) Cd 1-- (-rad) Citizens Field Observation 066 48 ppc Poumopon p-inew (sago pondweed) PPU P-g-paiflfw Islander pondeed) - Zp Zo,,i,&11iap,1wmi, (homed pond,eed) Ngu Nojw gwdiliwi, (Sixanern naiad) A VIMS Field Survey N Araj-pp. (naiad) Ngr Arofa, grcftl&w (raiaco U.S.G.S. & N.N.C.C. Survey Ec EW,, mnidwis (common eloI C ch-. . (muskg,-) Va V.11ii.H. -4- (wild..Iary) Nrn Hajw nism, (slender naiad) Tn Tap, - (Water chesomit) I SCALE,1:24,000 U Unk-napeci-mpoeitimn 164 UNITEO STATES COLONIAL BEACH NORTH QUADRANGLE !DEPARTMENT OF THE INTERIOR*--ff M-LA- "I" C; EOLOO ICAL SURVEY 7,5 MINUTE SEXE@S'MI'OPOU RAPH IC -BATH YM ETRI MERGED AQUATIC VEGETATION - 1987 @v 0 A3-- A, U7, IA2 _71 7" da If _2 7- A 0' U'6 VA EA A (,FA w 0 AA3 0 11301, Ql Ji 1; V. 0 DATE FLOWN Zm -h. (asignams) SPECIES HV Hydill-enicillim (hydinlia) 10-5-87 RM RVpw rnarin)w (,idgeon grass) Hd --rh- @w (.war st.drasi SURVEY STATIONS COLONIAL BEACH"'-,, Me Myniphyllu,,, spi@ (Eurasian watenindoil) Pcr P-g- cnrpw (cudy pond-d) 0 MD Charter Boat Field Survey NORTH, VA-MD ppf P-g,w,p,,jb1L=; (rridhead-grass@ Cd C-.phy11=&rn,- (wontail) 0 Citizens Field Observation 067 ppc P.-g,- p,,cd.- (a.g. pcind@aac) PpU P-g-pwI11. (slender pondwasid) Zp Z,.vcW1ii (hormsdi Wnd,eed) Ngu lvlj@ gi-,UV-,, (11Whern naiad) A VIMS Field Survey N Najw spp. (naiad) Ngr Nsim g@illim (naiad) U.S.G@S. & N.V.C.C. Survey EC Eld,, cw&wi, (mmmon elodeal C Chamsp.(muskgrasi Va vallusnn@s -i- (.ild csl.ry) Nm Ni mti.,(sierder naiad) Tn SCALEi:24=0 J Unknmn species composition 165 r-11-S HOLLY WOODYOU AURA NO LE .1MRNT OF THE INTERIOR L_a E.L.IrA' SURVEY 74-31-1 @@--.-SUBMERGED AQUATIC VEGETATION 1 .7@ 101 IR 'gj vq--', g '-/' q: -IT 7.9 . ... ... ....... ---------- 1,2 "@ tk-@ 7,, J" ?? I/M % G, P, 3- T F1 SPECIES 10-5-87 ZM HV Hy&ill, wrnifl- (hydnila) 'v SURVEY STATIONS HOLLYWOOD, Finn R.,,sa (widgeon gr@) Hit H-,nfi- @ie (water stargrass) M MD Charter Boat Field Survey MS Myriphyll-ps- lEurastan waternnifoil) Pcr P-g--wp. (curly pond-d) MD Ppi P-g-p,,ffi- redhead-grese) Cd C-,phy11.&w- (mantel) 0 Citizens Field Observation 070 ppC P-,-.p-f-- (aag. pondw..d) PPU Poiarneg,wrpwill@ (slender pondweed) Zp ZannurMIi,pIwtNi; (horned ponetweed) Ngu Najag@IW,neir (stachern naiad) A VIMS Field Survey NNj.,pp. (naiad) Ngr Nay= g,-iuixna (naiad) U.S.G.& & N.V.C.C. Survey EC EWa ceraa@mi; (common efodi C Cf-a tp. (.uekg-I Va vairs-fi, -x- (mid celery) Nrn Nja, rni- (slender naiad) Tn Te,,a nerew (water cheanntd) SCALE,1:24.000 u 166 UNITE STATES SOLOMONS ISLAND QUADRANGLE DEPARTMENT OF HE INTERIOR 4A. GEOLOGICAL SURVEY 14 ..m SEIU=@-Icl` 1K1p>'1`11d Xylle-lsl r@ -4@ SUBMERGED AQUATIC VEGETATION - 1987 ''0 AA3 TO Ppc Ppc Zp C H E S A P E A K E B A Y '414 Zp 7- Zp "@/ZpR ZTp lvzpR p P FCm 1" 30- A L A I R T E S T C E N T CHESAPEAKE BAY (5 DATE FLOWN SPECIES 10-5-87 Zm 7--o rwtm- (..ig,-) Hv Hydnflo veniciffam (hycfnffa) SURVEY STATIONS SOLOMONS RM RIPPO @fuw (VAdgwn grass) Hd H,-@w "ta (,ater stargrass) IVID Charter Boat Field Survey ISLAND, MD MS MywpV11-,pw- (E-ka. -1-ruffol) P., (curly Mnd-d) Ppf ft-ogemperfoliaw (redhead-ghess) Cd C-.phyfl- Citizens Field obseniation 071 Poo P-g-@cfi-, (Sago pondweed) Ppu pota,,ioge-puallur (slender pandweed) Zp zamdWlwp@-cr (horned pordweed) Ngu NajwgaWWwjs (southern naiad) A VIM$ Field S@-y NNjw Vp. (naiad) Ngr NW. gwillb,,a (naiad) U.S.G.S. & N.M.C.C. SuNey SOLOM INS ISLAND, MD. Ec EI.&a oe..d-il (coninhin Id.a) C Ch- sp. (muskg,asar) aN Va V,,Ifum@ -io-r (vold Wary) N in Najm,,im, (slender naiad) SCALE 1:24.000 Tn T,@ wmw (water chastnut) UUnknown speaes composchon 167 'E INTERIOR BARREN ISLAND QUADRANGLE NA GEOLOGICAL SURVEY 7.5 MINME SERIES OR RI r=1OMP (TOPOGRAPHIC) -1987 SUBMER13b AQUATIC VEGtTATION 7@ Rrr;--@-@ Rm... NAI MA OA3 Rm With LA4 Rm *Rm Rm cl In Rrrl@ M Rrr KA4 GI Al C:@) + -------- -------- 57 #AM co CA4 tkRitr 87AI AA3 17- - + 0 0 -T DATE FLOWN SPECIES 10-5-87 Zm @,'-@.(..igrass) Hv Hydffle -idll- hydniia) SURVEY STATIONS BARREN Ran Rwpia -i@ (wdgeon grass) Hd Hem-hem db,, (water stargrass) MD Charter Boat Field Survey ISLAND, MD MS hfyri@hyllw,, Vs- (E,rasian alermilfoil) PCr P-g-,rurpw (Mdy pondweed) Ppf P-g-p,,M@R, (redhead-gras@) Cd Cmrphyll@@-= (=ntl) Citizens Field Observation 072 0 PPC P-g-pectif- (solio pondweed) Ppu P-g-npwul@ (slender pndwad) c @41 Zp Zmuchelfiapal-i, (homed pondweed) Ngu NaiM911,1olvemil (southern naiad@ A VIMS Field Suwey N N.,. Vp. (nitiad) Ngr Najw g-ills-, mald) U.S.G.S. & N.V.C.C. Survey .-RA. Ec Ew- -d-u (oommon elodea) C CAa,,rp.(muskgraae) Va Vellamrta @fi- (%rild celery) N m Nj= rra., (slender naiad) SCALE 1:24,000 Tn Trope A- (water chesmurt) U Unknown spea- corrpositi- 168 Dr UNTIED STATES HONGA QUADRANGLE @EANTMENT OF THE INTERIOR MAN- @ III GEOLOGICAL SURVEY 7.5 MINUTE. SERLE O-OPHUTOMAP (TDP@HAPHIQ SUBMER\G E*6' AQUATIC VEG&ATION 1987 RmH RM AB2 SB3 RBI 0 OB Rm A T84 Rhh- - 7.@ DB2 R UB4 y ------- EB3 @D4 ERTL VA2 ,a - Rm IJA4 4 - _FM J- ERM WA.I % OF83_ SA3-1111L-) /c. R@i B XA3 111 -1 :- - .1 0 E hill B2 ANA4 T. . @@. \ I-, ( p--," I I . RA3 KB4 Rm WBI, LA OAI ..... . GAI XB3 Fahing aak L7 1 Y133 RM c 0 Rm j Be KA2 RED JA4 k., 182 ERIDL BC3 ,Rm VE@Rrn CC, ZB3 A13 Ec HA3 -x: - C, FC2 C.- 'CL NRrn ERm- ERrn QC4 IN G3 RED A4 4 GAI FA4 AA1 Al DA4 HC4 'a c X31c; M M Rm Hoop"Willti JC3 LCI NC2 OC4 DATE FLOWN ZM na,fw (eafgnavt) SPECIES., ",cill_ (hydrill.) SURVEY STATIONS 10-5-87 RIM RtWpia @6@ (Wclgwn gra@s) Hd @-ua @w (,a- stapgraaa) N HONGA, VIS My6ophyll-spi,,,,nan (Eurattlan atermintoto Pcr Po-g- Imp. (.dy P"d"'d) MID Charter Boat Field Survey M D ppt p-g,-p"f--- vadhead-g-) Cd c .. rIphynd-- (wor"" Citizens Field Obsewation PPC P-g-pectinana, (sago pond-ec) Ppu P-g-pwiu@ lalender Ind...d) -,-073 ___ Y.@ Aq IXA n R A @W ZP Z@nicheffiapalwmu (homed pondaeed) Ngu Njm g=divews, (wwhern n,iad) A VIMS Field Su,ey NNjw spp. (naiad) Ngr Njw pwillim (naiad) Ec EWea c-d-a (w-n efodea) C CA- . (...kg-) U.S.G.S. & N.V.C.C. Survey Va vnw.ena -icnna hvito @iery) Nm Naj=Ini,- (slend,, naiad) Tn Twa ... t,hi,stmit) SCALE 1:24,000 Uum- spedes w-p-ition 169 'FA.T UNITED STATES MENT OF THE INTE I.R WINGATE QUADRANGLE GEOLOGICAL SURVEY -ND DORC-TER CO, 7.5 SERIES 0-PHM0I-.1,T1-HIC 19 ---,,-.SUBMERGED AQUATIC VEGETATIO-N- - 7-- -CA RING B - _;; .__ (_ - _'@ :\@ - - - - -- - %ilLIkIE& W -C c- - - @7 z - 'Ad- t. AP. AV- z j_- -J, r i4@ ':i@ -7 cr I Sh-w I r C:. !4 RA 0 e :7 E., PA, OAJ NA4 Q@ 'UA2 Duck oon _j C HA30@. GA4 FA2 7 0 EA2 m a 96 - - ---- I Q%4 x 7-- N-- m Ile DATE FLOWN IN /" , SPECIES 10-S-87 Z. HV Wyddb --fict, thydnma) SURVEY STATIONS WINGATE, RM RWpW mhruna lwidgwn gra,ts) Hd Hrc-&,, dbta (water stargraes) MS Myfip4l1w,@i- (Eurasj@ watermUf0i)) PCr P-gm. cmpw (curly pondweed) MD Charter Boal Field Survey MD Ppf P-g-,,fliu@ (radh.ad-glass) Cd C--phythun (montaa@ 1A @71 I P, PpC P-g-pcdnah@ (saga pondweech PpU P-g-pwillm (Wender pondweed) Citimns Field Observation 074 Zp (horned pondweed) Ngu Naj@ g=delvemit (eouthern naiad) A VIMS Field Survey NNaj- -. (n.iod) Ngr Njn, gnucemna haiad) U.S.G.S. & N.N.C.C. Survey EC Etoda carademis (common elodea) C Cha-p.(mUSkgrasS) Va Vmama, wned- (wild cotery) Nm N.,a, m_,(.Wnda, noted) SCALE 1:24,000 Tn TWa no- (water chestnut) U 170 UNITED STATES ST. MARYS CITY QUADRANGLE EPARTMENT OF THE INTERIOR MARYS CO. GEOLOGICAL S@R7Y 7.5 MINWE SUIES 901@06R-HIC RA@Mj SUBMERGED AQUATIC VEGETATION-1987 A > -21i J 01-7@', 0 A V2 Rl- bL-F!-@-- BA2 Rm 7N 1-7 0 DATE FLOWN SPECIES 10-5-87 ZM Zmam ahm (eelgrm) HV Hdilb -icillnta (hydrilla) SURVEY STATIONS STMARYS Rm Rvpia @n- (widgoo. g-) Hd Hemonrh- dubza (water Wargr-) MS Mynophylim spj- (Eura@ian watermiltoil) Pu P-1- cnpw (curly pondweed) MD Ch:ner,Boat Field Suwey CITY,MD Ppj P-gewrNfoliou,; (rechead-gh-) Cd C-ophylhond-- (wontail) Citim Fie d Observation 080 Ppc P-g-@,rinatw (sago pona-ed) PpU P-g-pwil1w (slander ponch-d) Zp Zmnicmriaolwr,@ (horned pond-cl) Ngu Najw gua"Wmir (southern naad) A VIMS Field Survey N Ni.,pp. (neiad) Ngr Nj. g-ilr@ (holed) U.S.G.S. & NN.C.C. Su,ey 71 EC Ei,&, ro@wur (mmmon elodea) C Choap, (muskgram) Va vaisna -mcona *ld oal@ry) Nm Njo; m- (slender namad) SCALE 1:24,000 Tn T,,,nmnrn,(,aterchawnwj U Unknown species composition 171 UNITED STATES RICHLAND P INT OUADRANGLE DEPARTMENT OF THE INTERIOR GEOLOGICAL SURVEY I s I..T1 arRIES ORTHOPHOTOMAP(T. I -'n 7PAPH SUBMERGED AQUATIC VEGETATION- 1987, C.. --- C BA -.L - 661" R7 C, + 31 0 c- -0110' DATE@@-COWN Zm SPECIES HV Hy&iIj, V-will- (hydrila) SURVEY STATIONS 10-5-87, RM Rwpi, @nt@ (widgeon grm) Hd Une-th- d0i, (,star stargr@) RICHLAND" MS MywphyII-pi-n (Eumian watemilloil) Pcr P-gew, cispw (WHY pord-d) MD Charter Boat Field Survey POINT, MD Ppf P-g npefli-(rWh..d-g-) Cd C-phyllm dem- (wortail) Citizens Field Observation 082 D Poo P.-g, (sago pondweGd) Ppu P-g-pwillw (slender pon"ead) "' p"n'- Zp 7-d@&lliclp.1-4 (h .... d pnd-ad) Ngu Njw gdaVmis (sowhern naiad) A VIMS Field Survey a IN Z. vp (naiad) Ngr Njw (naiad) U.S.&S. & N.V.C.C. SurVey Ec Elod,, ca-alemu (Wmmon elodea) C Chua sp. (muskg,ass) Va vwlismria @n-a (vald colery) Nm Najm min- (slender naiad) SCALE 1 @24.000 Tn T@ - (watal &atnut) I I LE U Un",.n sWdes =rnposifi- 172 UNITED STATES BLOODSWORTH ISLAND QUADRANGLE DEPART ME T OF THE INTERIOR EOLOOICAL SUR@EY 75 MINUTE SERIES ORT.-I-t.-Al' I(i-RAPHIC) 4" - SUBMERGED A QUATIC 0 VEGETATION - 1987 %% F I S H I N G 8 A,ii Y % R -T.dd C.I. C., ZA4 0 C, .x 'p + -0r. VA4 C. TA c 0 K A H A N I X A 0 1 SA4 F QA4 RA2 D 3 COW 3. A I'- 1 0 it 14 1"C'M Cling - 134 C P@4 W04 VE 6AI__ NA 4 MAZ K- ERm IV LA' J8 314' A4 oRm M M H A, -4 Md R I IE - ny Fbm BA3C?-- RM EA21@JA3n 4 EU HA 'SSO AT.D MA FISH Rm IN Ay@ -VCA4 0_ DATE FLOWN-,- SPECIE 10-5-87 Zrin Z... -i- (..Ig,.S) Hv Hydill-ficiUsm (hydrilla) SURVEY STATIONS BLOODSWORTH RID Rvpia inimrinna (widgeon gassi) Hd Her-iiriis dbin (water stargrass) _V E H S'riuidurli ft MS Myfiphyllurn spicciiiin (Eurasian watermilifel) PCr P-gew, Cupw (Curly pondweed) MD Ch:rter,Boat Field SuNey ISLAND, MD Plot P,i-gm,ip,,jwiRw (redheadIH;rass) Cd c--phynuin d-- (coomail) Citizen Fie d Obser,tation 083 Plod P-ginn, peramw (sago pondweed) Ppu P-g-piiinirlia (slender pondweed) Zp Z .. ichelliapalwRis (homed pondweed) Ngu Naind gwdligsimuis (Southern naiad) A VIMS Field SurMey N Njw spp. (naiad) Ngr Njid g-ilifinia (naiad) U.S.G.S. & N.V.C.C. SuNey Ed - -i-rfewa jocinimm lodea) CCh-p. mn,skgrass) Va Vallu-Ja -coria (wild celery) NM Njo riv., (slender naiad) SCALE 1:24.000 Tn Tva einew (water Chorshme) 0 U Unknown species composition 173 UNITED STATES _MENT OF THE INTERIOR STATE OF MAPY'LAND DEALISLAND QUAORANGLE I A OAAEY1-D OEULOG CAL SURVEY RYLAND GEOLOGICAL SURVEY 7.5 MINUTE SERIES ETHOPHOTOMAR ITO RA- ',_ I I ..j "d -,A SUBMERGED AQUATIC VEGETATION - 1987 S H I N G B A Y 5 TO, 0 C, 1. 0 A .1co -------- -------- i-go- --------------- ---------- 117 GO -0 + A. C v@ -M' E :S: X -7- ue. 6, Al L J!j I@A N D *0 1: E nzg N T A'R E 0 d c Z n: C 4 JA2 E BI G-. Rm 0* AA3 ,ntA C!. m T. SrpW_. CIE XA4 R I V F R 0 K N SPECIES 10-5-87 Zm ZU-n. -6- (..Ig-) HV HydClla -idllara (hydrille, SURVEY STATIONS DEAL ISLAND, RM Rppi, mrYtim (widgeon grass) Hd H--Ua Afbw l,ater stargrass) Me My,!qpW1-p,,R- (Eurmsan walemifol) Pa F-g- firpAD (-Ay p-dod) MD Charter Boat Field SuNey MD Ppf P-g-p,dbI1arRA (rechead-gras,S) Cd C-Rphyl[Mr, @- (coontafl) 1 : Citizens Field ObservaVon 084 PPC P-g- p,cdRaRA, (sago pondweed) Ppu PRvR-g-pRxIIw (slender pondeed) Zp Z-mcWUaj,RfvE, (h.RW pnd.-d!) Ngu NqfRAS@@mir (Southern, naied) A VIMS Field Sunney N Nj. p. (n.id) N9T Nja, gracilh- (rudad) U.S.G.S. & N.V.C.C. SurVey Ec Ewin ca-t-a (co-G wwomij C c/_. V. (nnuskItass) Va vallumtur anMn@ (wild calery) NM Naim RURR, (slender naiad) SCALE 1:24,00D Tn Tapa Ran- (water chestnut) U Unk- slDecies -pGInuon A 174 5 UNITED STATES MONIE_0UyAORANGLE STATE OF MARYLAND _'ND P_TMENT OF THE INTERIOR _RYLAND GEOLOCI AL SURVEY ?5 MINUTE SERIES ORTHOPHOTO GEOLOOICAL SURVEY MAP (TOPOGRAPH, H. SUBMERGED AQUATIC VEGETATION -1987"n all o' V.Nn 41@ Ir. N.11 R i, z '0 ov IV c -w- -V V.. 0 7- lt7Q N G R E L N E C K c f Y@ ----------- It Ch 7 7- ch.- z:- %- c". C -3- AFA2-@z T A lly 17.7. GA2F t Rm R-eP, RE E L S N E C 7_ Ligh@ 11 m '4 IA3 K IN N M A Me 1,1,nd -Ulm. DATE FLOWN SPECIESHV, Hydnild wNicill- (hydnile) 10-5-87 Zm Z,-'. @amtna (seignads, SURVEY STATIONS MONIE, RM Rwpja -rh- hVidgeon g-) Hd 11--h- dbw fwater warg-) MD Charter Boat Field Survey IVIS NyHphyll-pi,umun, (Eurasan waternniltoil) Pcr Pow-g-ripw (wry pondweed) MD Ppf P-gew.p,,flzan@ (redhead-grass) Cd C-phyfl@ demnm (oddntafl) Citizens Field Obsemation 085 Pot; P-g-p-Insrs, (Sago pond"W) Ppu P-gm.p=illw (slender pordw-cl Zp Zn-,h,1IWpnw- (horned pondVnied) Ngu Njwgwd.I@wu(southemhajao, A VIMS Field Survey NNjmpp. (naiad) Ngr Nqrw pww@ (naiad) U.S.G.S. & N.N.C.C. SUley Ec Ew-enadewi, (common Stories) C Chara sp. (muskgravi) Va NnY Najwedw, (slender naiad) Tn Tnd;wwuRR,(MS1erCh9sfirRUW SCALE .1:24,000 1 WLE UUnk- species -position 175 F"T-H'E'S, " " a NTERIOR ST. GEORGE ISLAND QUADRANGLE G1O1OGI@AL'1U'FWE MA YIAND-VIRGINIA 1@p 7.5 MINLTE SERIES (TO@R-C-11-METR "I !C 14jif I @bLIBMERGED AQUATIC VEGETATION -1987-4 -7 @' H4@@_ 43 _J 's Z' + m N 'I@Elll P011T R 21 DATE FLOWN Zm z"a",nanneLesig@) SPECIES Hv Hy&iI1,,-i,i1Ian1 (hydfilia) 10-5-87 RIM RWpia ,enj&w (,ridgeon grass) Hd dN, (water stargras@) SURVEY STATIONS ST. GEORGE MS Myiphyil= spi- (Eumian watermiltoil) PCT P-gm-ispw (mdy pon".ed) Mo Charter Boat Field Suey ISLAND, MD-VA Ppf P-g-p,,fIiaw (rachead-grass) Cd Cenaphyllm d-- (wentail) Citizens Field Obsmation 089 PpC Pon-g,wnpecnfreac@ (sago pondweed) PPU Pc-ge..pillw islands, ponMeed) zp @chtfiapalwv,U (horned pondweed) Ngu Nsim g-"W,Wi1 (scWharn naiad) A VIMS Field Survey N Nj= Vp, (naiad) Ngr Nj. g-dhtna (naiad) U.S.G.S. & N.V.C.C. Survey ST. GEORGE I;1=D,Z1D.-VA. EC Ew-sncdmis (common e1wea) CChec . (.u.kg-) Va V,1&missndww (wild cefery) Nm Assrmw,(stendarnwad) Tn Tspe - I- chestnid) SCALE.1:24.000 J Unkno,sn species composition .--n 176 UNITED STATES KEDGES STRAI 5 QUADRANGLE DEPARTMENT OF THE INTERIOR .-L-o " " GEOLOGICAL SURVEY 7,5 MINUTE SERIES ORTHOP OTOMAP (TOPoGRAPHIC V4 SUBMERGED AQUATIC' 6@ WAI P@4 QA4 VEGETATION - 1987 u C.- NAZI Z MA5 4 C, 0 A4 6-L T- + s S h.." H-6. HA4 Sh-- N Z S T T S D + + LI.M. W Q5 C.- a. W@ 4 27@ N % 'INY DA4 B43 T11y I o Sov A 4 No S6 'Nosav DATES @@6wT SPECIES 6-6-87 Smith Is. Zm Hv hyikillc, wM611ara (hydrille) SURVEY STATIONS 10-5-87 S. Marsh Is. RM Rppki n-itim (Wdgftn grm) Hd Hremv&,, dibia (wider stargrass) MS Mynphylhun spi- (Eurasian walarmillofl) Pa P-g- cdspw (wdy pondviread) MD Charter Boat Field Survey KEDGES Plot p-g-p,0w- oeoh-vaa) Cd (ooontw) STRAITS, MID PPC p-g,,-i p"fi-, (840 por'd".d PPU P-g-pwil1w (slander pondweed) Citizens Field Observation 091 Zp Zannichefflapalwo* (horned pondeed@ NgU Nojw gWMWcwb (Nutnern naiad) A VIMS Field Suwey N Nj. (neiad) Ngr Najw g-11@ (naiad) JIM 711 11*n EC Elo&, madwis (common elodaa) C Ch- V. (rhiiskgrass) It U.S.G.S. & N.V.C.C. S-ay Va VaIllimm -i-, (@Idl celery) N. Nqj.@,(Wnde-wad) Tn Tva i- (,ater chiewnw) SCALE.1:24.000 U unknown spedes cornposition 177 "N"'D STATE, UNITED STATES TERRAPIN AND POINT QUADRANOLE MARYLAND-SOMERSET CO. N EPARTMENT OF THE INTERIOR C@PARTMENT OF T- -.1 TS Mi- SERIES OIROGRAPHIC) GEOILDDIC.AL SURVEY CORPS OF ENG-ERS 76 '3 E SUBMERGED AQUATIC- VEGETATION - 1987 CA4 A3 + AA4 7- N. VIP IS DATES FILCIWN'@@,_ SPECIES 6-6-87 Smith Zm Hv ffydRI,I,,mdII= (hydn1la) 10-5-87 Deal:s- SURVEY STATIONS a. Rm Rvpia n-it@ (vadgeon grass) Hd H--@,a &bio (waterstagrasa) TERRAPIN SAND MS MyIwphyff-pi- (Eurasian atemrilfoil) Pcr P-g- cLyp@ (@ry pondweed) MD Charter Boat Field Survey Plot P-g-,-M- (,.dh-d-g-) Cd C-whyll@d-a. focorIfaj)) POINT, IVID PPC P-g-peco-, (Sago pondweed) PpU P-g-pI,,UlIa (slender pondweect Citizens Field Observation 092 Zp ZennicMisa paf-is (homed poncmeed) Ngu sqia@ g-"@n,u (sownem naiad) A VIMS Field Sumey NAafa, Vp. (naiad) Ngr Vj=gacf11Lna(nguadj U.S.G.S. & N.V.C.C. Survey Ec Ei,&, c-*@u (Common olodea) C C-a v. (muskg-) Va Vaflis-ia -ioana (vAld @lery) Nm NaIi-ine, (slender naiad) Tn T,@ no- I- chest-) SCALE.1:24.ODO uunIO-pod-compoeticm 178 UNITED STATES MARION OUADRANGLE ... ART MENT OF THE INTERIOR s.-FsrT GEOLOGICAL SURVEY ?s MINUTE SeRIES ORTHOPHOTOMAP JO@RAPHIC a 11 . . ...... 30' !a- SUBMERGED AQUATIC VEGETATION 1987 7" S83 MI. V. I., Ch qB3 0 NB :.,up., Hill _Rm U -_g'@a4 MB3 ov, P MIN L83 RMW :Rm H 0 L L A IN 'D _y F K - F@ A. A- -fli@ MEN al &M C'I' Q ITA RA6 NR6PR M Bill OA24 AI:53 C. 3 RM!W XA? N4 fto RM WA Rm. - IL .a 14 3 R M -Rm ZM 11 MI LA4 Rm _4MRm. RRM DA@IZ@ e 3 7.7 JA3 A" OR 2 FPO, P_ T.1h C.. C' a a DATES FLOWN SPECIES 6-6-87 Big Annernessex R. ZM 7- @naa (ealgrass) Hv Hydilla wrnci@ (hydailla) SURVEY STATIONS 10-5-87 Manokin R. R. R.,Vkz-W-(,Md9.r9-) Hd @uz(.atlwatartlraas) MD Charter Beat Field Survey MARION, MS Hydophyll-picalwa (Eurasian watemilfoil) Pcr PoewIalrejoncrilpw (curly pondweed) PPf (redhead-grass) Cd Cerx0phyllmde- (coorWI) Citizens Field Observation MD Pap P-g_@cn- (saga pDndweed) PpU P-g-puallw (slander pondwem 093 ZP Z-i@hdliapln* (h-.d pndw..d) Ngu N4o, g,,WWmmr (southem naiad) A VIMS Field S.rVey @S! N Najw spp. (naiad) Ngr Najw g-inuna (naiad) U.S.G.S. & N.N.C.C. Survey Ec EW,, @mi, (common eladea) C C@a V@ (mlikgrals) Va Valliseeda -joam (wild cehiry) N. Nj. rIu- (.lend., ralao) SCALE 1:24,000 Tin Tapa -g (water chestnut) u Unknown species compmition 179 UNIT- .,A'.. E-ELL QUADRANGLE G@.... MENT OF THE INTERIOR GEOLOGICAL SURVEY N.TE 's IT.. _HIC@ 1A JA4 SUBMERGED AQUATIC VEGETATION - 1 �87' A A tZ PA4 + \J, R R Say 17, AR R m m 4 Rm + + CA2 No Sav AA4 Alk AZmRm DATE FLOWN SPECIES 6-6-87 ZM 7--mriw(eelgrasal H Hy&iii, V-W- hydni a) SURVEY STATIONS EWELL, RM RUppia widw (Widg.00n grasa) Hvd Hem-dom dubia (waterlet"argrass) MD Charter Boat Field SurVery MD-VA Me hfy@phyll-pj@ (Eurasien @dernndfoil) Pcr P-gewn crijpw (mdy POndoech plat P.-gao.pdollarm (redh-adl-grasS) Cal C .. wphyth-d- (wontail) Citizens Field 05smation 099 Fix Ps-g-pecd-(aag. pand-lid) PpU P-gew.pwill= (slender pondweed) Zp Z-h11@ pal-4 (hornm pandweed) Ngu Njm gaadalwewu (NUthern naiad) A VIMS Field Survey Nvjw ,p. (naiad) N r (naiad) U.S.G.S. & N.V.C.C. SurVey Ec C9 .1-7-kgraas) Via vam-w -i@ (wild colery) Nan Njw m,- (Slender naiad) SCALE 1:24.000 Tn T,,p-(@wChestn0l, UUn@-,n spftes mmPOSibon 180 UNITED STATES GREAT FO ISLAND OUADRANGLE DEPARTMENT OF THE INTERIOR I IE I@LEIl 1111NIA T (TOPOOR GEOLOGICAL SURVEY SUBMERGED AQUATIC VEGETATION - 1987 LA4 A .-A C.- Rm It -0 @IA4 F FA3 A HA4 W, "o IIITI@ INNEME"" P, NAI A4 % CA2 + + as ACs BA2 AA4 AZm dik QA2 K PA4 DATE FLOWN SPECIES 6-6-87 ZM Z- -'i- (..Ig-) Hv Hydfill--idilaw hydrilla) SURVEY STATIONS GREATFOX R. R-i. -in- (.idg-n gn-) Hd Hv-&. dWd. (Iater stwgnass) MD Charter goat Field Survey ISLAND, MD-VA MS MynophyliIn spi@ (Eurasian watermittoo) Pcr P-gm-ispIr (cudy Nndweec) Ppf P-g-pedbliarm (redhead-grass) Cd C-Aphyli-d-- (coomal) Citizens Field Obsewation 100 Poo P-,,.-cd- (-go Mnd...d) PpU P-g-pwill,u (slender pordiiiaed) Zp (h.rnEd Pnd...d) Ngu Njm (wWhem naiad) A VIMS Field Survey IN Nqj. Vp. (naiad) Ngr Najmg-iltim (naiad) U.S.G.S. & N.V.C.C. Survey EC Elod,, -dewis (oommon aloclea) C Chad sp. (muskgrass) Va V,11unH, -i-I (wW mlery) Nm Njw mm,(slander naiad) SCALE 1:24,000 Tn Tw, - (,,inuer chestnut) ILE UUrknmn species wmpfttion 181 UNITED 6T TIES CRISFIELD QUADRANGLE DEPARTMENT OF THE INT RIOR MAR LAND-RGIMIA MIN yl GEOLOGICAL SURVEY 75 UTE SERES (TOPOGRAPHlC a -7 V6: AQUATIC VEGETA1101-1-1up, MA W. etp 4 A4-,," HA3 4 Th rA3 a. A2 6A3 CA3 X B A + - -- - -- - -- - - -- - -- - -- - -- - -- - -- - -- - -- - -- - - AA4 a Zm SPECIES Hv Hyd,,I4-ni,jjjx, (hydrilla) 6-6-87 RM Rppia -Uaa (,idgma grass) Hd H--&,. df@w (water Itarg-) SURVEY STATIONS CRISFIELD ' Vis mymphyli-pi@ (Eurtuian watemooti) Pcr P-g-,rivw (mmy pondeed) 0 VID Charter Boat Field SurVery MD-VA Ppf P-g-p,,J61@w redhead-g@) Cd C,,,,,phyll= d-- (montaiji) 0 Citizens Field Obsemation 101 PPC P-gem. pecriaaa,, (Sago pondimaed) Ppu P-gew.p@jjlm (slender pondweed) Zp Z@chdlwpafwis (homed; pordeed) Ngu Haj= gw,"wmis (-hern naiad) A VIMS Field Survey N Njw Vp. (naiad) Ngr Njo g,acillim (naiad) U.S.G.S. & N.V.C.C. Survey Eic Ew,, m@a,,4 (common Wades) C Ch- 1p. (muskgrai Va Vaflismn, -i-i (wild Wary) Nm Njar mm, (slender naiad) Tn T,@, - (water cheatrur) SCALEol:24,000 I wl@ u Ulk.1wl,pedesmm@itimn 182 ,,"UNITED STATES COMMON.EALTH OF VIRGINIA REEDVILLE `QUADRANGLE MENT 01 THE INTERIOR DIVISION OF MINERAL RESOU@ES 7S MINUTE SERIG .... ... .... .... EOLOGICAL SURVEY AMES LCAILV@f4@1@TE GEOLOGIST -,j SUBMERGED AQUATIC VEGETATION - 1987-@,,@, -j V GREAT M" --mico 0 Z 5, P-' A2 P CA3 m .4,*2 H A R@ V E Y, S, N E C K J I N G R A M B,, A y IT) a CREEK + RA2, OEA4 Rm @V m A4 0 m j -4. DATE FLOWN Zm Z--fina(Iielgrass) SPECI ESHv Hdnjj '@ii,jjle. (hydrills) 6-28-87 Rm Rurpia @ifim (widgeon grass) Hd Hemnmjwn, dbia (water starghaSS) SURVEY STATIONS REEDVILLE MD Charter Boat Field Survey Vx MS My-phyff-pi,-,, (Eurasian watermitoil) Pcr P-gnw-upm (oudy pondweed) Ppf P-g-p,,fh.- (edheard-g-) Cd C-,phyltwn d-- (ooontail) Citizens Field Obseirvation 106 Ppc ftionIog-p-ina- (eg. Phdw..d) PpU P.,d-g-pwIIho(-1 nd.Ip:Indw..d) Zp Z-&Wliapal-ir (horned pondweed) NgU Haja, gundownwis (southern naiad) A VIMS Field SuNey IN Nqi=,pp. (naiad) Ngr N.VA, ii-imnd (naiad) EC EWr, @na&mis (oommon elodea) C Ch- sp. (muskgrads) U.S.G.S, & N.V,C.C. SurVey Via V,11is ... sa @ni,dm (wild ortlery) Nm Noy. mu., (stand., naiad) SCALE 1:24,000 Tn Trapa - (water chestnut) 1 0 U Unknown species mmposition 0 183 UNITED STATES TANGIE ISLAND OUADRANGLE DEPARTMENT,OF THE INTERIOR COMMON.EALTH OF VIRGINIA NVIRGINIA-ACCOMACK CO DIVISION OF MINERAL RESOURCES 7.5 IN CEOLOG CAL SURVEY JAMES L CALVE@R,%@LATE GEOLOGIST Iio. SUBMERGED AQUATIC VEGETATION - 1987 A4 K 2 Ctl MAI GA2 00 E D6 + + 2 D A2 .1. p A3 no ... OR AA2 + 4 4 .4 DATE FLOWN SPECIES 6 -6 - 87 Zm @m (eelgrass) Hv nydilla -milam (hydrilla) SURVEY STATIONS TANGIER ISLAND, RM RVpui n,-aiio, (widgeon gress) Hd He-whem dubso (water stargrass) MS Myn,V,hyl1-pi,,,Uiin (Eurasian watermilfoil) PCr p-g- ,@pio (@rly pond-0d) MD Charter Beat Field Survey VA Ppf P-,e..pef.1i.. (Whimid-grass) Cd ce-,phyu= de- (mortait Citizens Field Observation 107 JAA Ppc P-g- N,d- (eg. ponowaixt Ppu p-gm.p=1IIw (slander pondweed) Zp z,nndchrIjiNI-ij (horned pond-ed) NgU Njwg,,dlpwi, (sowhern naiad) A VIMS Field S-ey N Naim spip. (naiad) Ngr Nq* gmciffim (naiad) U.S.G.S. a N.V.C.C. SuNey EC Elda ciiwd-is (mrrmon elodea) C C@,,p. (muskgrass) Va vwlisr,nix -i,-i (wild catery) Nm N4= m- (Slender naiad) SCALE 1:24.000 Tn Toe - (water che,tnwl 0 U Unknown moos -position 184 CHESC ESSEX QUADRANGLE _@N COMMONWEALTH OF VIRGINIA IMIA ICCIMACK CO MENr OF THE INTERIOR DIVISION OF MINERAL RESDURCES I., 1111TE PAPHIC) j 'IT @,!URVEY AMES L [email protected]@@I@TE GEOLOGIST SUBMERGED AQUATIC VEGETATION 1987 + AZm MB3 r No Bev DB2 E82 CBI L83 FB4 YA2 EIB3 K82 Z I HB3 dB4 0 XA3 WA2 1-1r, B A Y 1132 -JB4 VA4 TA3 LIAI, N OA PA m - - - SAI No v A 7- S4 Zm R KA2 HAI GA 4A4 FA4 @DA3 %A4 BAI AAI , CA3 DATE FLOWN ZM Zove-ins(eelgrass) SPECIE SHV Hy&itb wnwill- (hydrilla) 6-6-87 Rm RVpil nsnitim (widgeon grasat Hd Hremmhe,, dobia (water stargress) SURVEY STATIONS CHESCONESSEX, IVIS hfy,iphyflo,rVi@ (Eurasian waterrhafol) Far P-gm, crupw (curly pordweed) MD Chatter Boat Field Sumay VA Ppt P.-g,..p,,fWioRO (Irech-l-g-) Cd c-ophym-&-- (co.intaii) INo Sev PpC P-g-@cdmw (sago pondweed) PpU P-gem.pwillm (slender pordweed) Citizens Field ObseNation 108 Zp Z@c@jjjapajwrnj (horned ponoweed) N9U Njw gwdluomis (southern naiad) A VIMS Field Survey N Noy. ,. (naiad) Ngr (n..d) EC Elod,, cahod-is (common elodea) C Chs-p. (.uakg-) U.S.G.S. & N.M.C.C. SurVey Va Vallisuria -i-a (Wild calory) Nm Nory-ins, (slender naiad) Tn TAo - (Water chestnut) SCALE .1:24,000 1 wu@ U Unknmn species mmpostion 185 UNITED STATES COMMONV@EALTH OF VIROINIA PARKSLEY OUADRANCLF EPARTMENT OF THE INTERIOR DIVISION- MINERAL n1SEILR-S --NIA GEOLOGICAL SURVEY JAMES LCALVE@,a@ATE OFOL-ST INIIII, S-- 11-;- 1111 SUBMERGED AQUATIC VEGETATION - 1987 -E. -S, q A R'E A S L EIY B A Y ------ LA3 KA3 -7, JA JA4 ,j 0 A.- HA3, -5@ + FA3 A3 A J" DA3 C2 - A P, M,Rm CA?.,, GA3 A -w + 'kI C-) A J, 7 > DATE FLC" Zm SPECIES Hv Hyem, -Iduam (hyanua) 6-6-87 Rm Ror@pm oaNwria (,idgeon gress) Hd Hem-hem dobw (water stargrass) SURVEY STATIONS PARKSLEY, MS Alydphyll-picaron (Eurasian watermilfoil) Pcr P-g--upw (cury pond,eed) MD Charter Boat Field SurVey VA Ppf P-ge-rnajohoo, (redhead-grass) Cd C-phyll. dm,,. (Wontail) Citizens Field 01:isewalon 109 PPC P-g-p inew, (saga porevood) PPU P-gew.pwWw (slander pond,eed) Zp Zwic@lfwpalw,u (horned pondweed) Ngu Njwg-dI,,ewi, Isaiah- naiad) A VINIS Field Survey NNajm xpp. (naiad) Ngr Nj. gmcuu- (naiad) U.S.G.S, & N.N.C.C. SuNey EC EoiIo aemIkmii; (Merreon 010dea) C Chaa @p. (nmuskgroo) Va Vollirwri, -- (mkd oelery) Nm Njw im., ramd) Tn TA;o wow twater cheStnefil SCALE 1 24,000 1 -r UUnkn- Speces -IenIinan 186 UNITED STATES COMMONWEALTH OF VIRGINIA URSANNA 0 ADRANGLE DEPA TMFNT OF THE INTERIOR DIVISON OF MINERAL RESOURCES VIROINIA R j GEOLOGICAL SURVEY AMES L CALVER, STATE GEOLOGIST ?, MINUTE SERIES JO@RAPHIC K 3 SUBMERGED AQUATIC VEGETAT16N =198f` aw- 4 xl-\,-@@, 12- ........................ Til I 10. NAN- DAI t M CAlt R@ AAI 7-, DATE FLOWN SPECIES 6-28-87 Zm &- -ri. (telgrass) HV Hydffl, w,ndllanr (hydrilla) SURVEY STATIONS URBANNA, Rm Rppi. -m- (widg- girass) Hd H,tm.dm dbi. (water startinass) MD Charter Boat Field Survey MS MyiphIIan,rpi,a,aw(EuraSiarw armilivi) Par P-g- cisp@ (cwmy pordweed) at VA Plot Pru-gm.pjbftar,, (redhead-g-) Cd c,-phyn- &-- (-mail) CitiZens Field Obsemation 110 Poc P-g- pectinaw (sago pondtareed) PPU P-g- pwiltw (slender pondweed) zp Zannichellia palwnr@ (hornett pordweed) NgU N4m gaadUI*,m1s (southern nalad) AL VIMS Field Survey NNajar spp. (naiad) Ngr Najar gwillnna (naiad) U.S.G.S. & N.N.C.C. Survey Ec E1,1--a-is (comman elodea) C Chwa sp. (muskgntmit) Via Vflunerw -icana (wild ceiary) Nm Najmmi-(s1ende,naJacJ) Tit Trapa - (water Chestnut) SCALE.1:24.000 UUnknown species composition 187 UNITED I ATES COMMON.EALTH OF VIRGINIA IRVINGTON QUADRANGLE GERA Raj_ RTMEN OF THE INTERIOR DIVSION OF MINERAL RESOURCES 1@ A GEOLOGICAL SURVEY 1.5 MINUIE SE-1 ITOROIRA-11 t Pi, E-@ Ti. TIK.'AF @,i- ,',,,',,,SUBMERGED AQUATIC VEGETATION -1987, n, C, fi 4 W, 0 J Tj @A 7 M W@@ V '0 I PJ- 4, KA Y f C@D 3 1-a GA f F4 rA2 R EA4 Am Rrn$ 3 H A N N 0 ',t-pp ..... . .... . ...... DAT FIL SPECIES -28-87 Zm ZArmra mdw (6019,aaa) HM Hydilia wnxifl- (hydnia) SURVEY STATIONS IRVING I Fin Ruppia @jdm (widgedr, gress) Hd Hmmw&m dabia (water Stargress) it 0 MO Charter Boat Field Survey VA MS Myjphyl1-picWun (Eurasian watermilfoil) pCr p,-8,t,, cjr@spw (oudy pordwe0d) PPf P-ge-perfotionu (redhead-gUISS) Cd Ce-phyll- @-- (-nail) 0 Citimens Field Observation PpC p-gcW.pecdnno,o (sago pondweed) PPU p-g-pwj11w (slender pondweed) A VIMS Field Survey Zp @Nuuc@llmp,turis (horned pordweed) Ngu Najw gue",p,mis (southern naiad) I IN N@j. p. (n.id) Ngr Njw gr=illma (naiad) 40 U.S.G.S. & N.M.C.C. Survey EC EW-md-@(oonnmorSlOdOa) CChr, So. (muskgrase) Va ve@iumfie-ic- (Mid cel.ry) Nnn Njm rd@ (slender naiad) SCALE 1:24,000 Tin TW, - (water Chesnut) U Unknownepedo.oornposilion -E- 188 UNIT D S ATES COMMONWEALTH OF VIRCINIA FLEETS DAY OUADRANGLE OEPARTMENTEOF HE INTERIOR DIVISION OF MINERAL RESOURCES -ONIA _OLOOICAL ?s MINUTE SERIES (TO, "U"l a-- CBI SUBMERGED AQUATIC VEGETATION - 1987 10- 0-J I m A82 m R2 Rrn@- YA2 + @2- -3 Do liQ f WA h4 TA3 XA2 RA I A ..a Rm m 3 Zm R QAZ + M, A nZ ZMA HAZ, E T S B A Y, E v X i,7 ..a RM FAI R CA3 ITTLE R DA3 A Iw E A4 C7 DATE FLOWN SPECIES 6-28-87 ZM @-a -d- (..Ig-) Hv Hydill, @tdillaw (hyddlia) SURVEY STATIONS RM Rppw n-inm (wdgedn gresa) Hd &Mr=*m du&@ (vairer Slang Nara) FLEETS BAY, IVIS hfyri@phylf-pi-n (E-Sim watennilfoil) Par P-jero,,rjspw (wAy ponow.0d) MD Charter Boat Field Survey VA Ppf P-geto,p,,jiliana (radhead-graos) Cd C,-phyll- d,-r,- Citizens Field Observation Poo P.-,-. (Sag- p-nowem) Ppu F-g-p=iUm (slender pondmed) 112 Zp (hmad pondwead) Ngu Njw guadatupmis (southern naiad) VIMS Field Survey NNajw pp. (naiad) Ngr Vjm ,@Ulmw (namad) U.S.G.S. & NNC.r. Survey Ec Elod-awdwis (mmmon elodea) CC@, v. (muskgrm) Va Vallismria a,-IceIa (Mid celery) NM Nj=,Wm, (slender naiad) SCALE 1:24,000 To 0 UUnknown species winpoedion -.n 189 UNITED STATES GO MMONWEALTH OF VIRGINIA NAND A CREEK QUADRANGLE % DEPARTMENT OF THE INTERIOR DIVISION OF A N-L Rls.-ES aEOLOGICAL SURVEY JAMES MVIRO NIA-ACCOMICK CO L CALVER 75 IN UTE SERIES JOPOGRAPHC ,!TE GEOLOGIST SUBMERGED AQUATIC VEGETATION - 1987 + LAI B A y (KA3 JA3 I Al- HA3 GA 00 FA2 A CA4 'AR I & - . .... A3 A DATE FLOWN - SPECIES 6-6-87 Zrn Zoo." Hv Hy&ill, wmallat, (hydnila) SURVEY STATIONS NANDUA CREEK, Rm Rwpia -riama (vvidgeon grass) Hd H--hem dbi. (.awr stargrass) MS MydWhyU-PkaI-, (Eurasian watermi toil) PCr P-g- crup. (.My P. ad) MD Charter Boat Field Survey VA ppf P-g-@rjbliawredhead-grass) Cd C-Whyll@drw- Ppc p-g-pcunaut, (&no pondweW) Ppu P-g@pwiltw (slender pondweed) Citizens Field Observabon 113 Zp @chelliap@wm,, (homed POndiaed) Ngu Nafiw gma"wmis (wirthern naiad) A VIMS Field Suwey NNoix spp. (naiad) Ngr Najw gmilliw (naiad) U.S.G.S. & N.V.C.C. Survey ED EL@&a @@- (--.on Iod-) C C@. V@ (Mskgmas) Va Vflismria -icaaa (VAW calery) Nm Njwraiw, (slender naiad) SCALE 1:24.000 Tn Trap, naront (@er chestrea) r UU,I,n-%pscescomoosftJon -R 190 COMMONWEALIH OF VIRGINIA NGOTEAGUE QUADRANGLE MENT OF THE INTERIOR OlVISION OF MINERAL RESO-Ea VI RGINIA-ACCOMACK CO k .-FAR, j -@ATE OEOIUCOIST FIG III UTE SER ES (TOPOGRAPH GEOLOGICAL S.URVEY AMES L CALVI@j. 7S I m c 7-;, /SUBMERGED AQUATIC VEGETAT ION - 1987:"' < R WA3 Zp .. AE12 ZA4 Zp. p I N C 0 C K Zm,Zp 11 Z u SA2 Zp -T PA3 GA2 4m NA2 Al + E C K A3 LA3 Az KAI Zrit Rrn, Z > S L U I T K'I L L is I E.C K I Rm @/ m Rm @11,3 4 HA IAI Z U Nq 0 T GUR GA3 2 DA3 EA4 01 3 ........... 4 Ar @ ------ L @ -7 doll, 0 DATE FLOWN SPECIES 6-6-87 ZM &--ariw(eelgrass) H,., Hydfil-,ticill- (hydrilla) SURVEY STATIONS PUNGOTEAGUE, Rm RWpIiu,-ii@(widgwngriiss) Hd di (,ater margriII&I) E IVID Charter Boat Field Survey MS Myfiophyll@spic@(Eumianwatemilfoil) Pa A-g- mqrw (mily pondased) VA Ppf P-g-,pdbliw(redh8ad-gra&s) Gid C,-phyU,,,F, dw- (=ntail) 0 Citizens Field Observation 114 PpC P-gm, Ncll@ (sago pondweed) PpU Poia-g- pwillu (slordar pondweed) ZP Zandchelfiapal-ij (horned Pordoreed) Ngu Nqjw pacialupmis (W@hem naiad) A VIMS Field Survey NNqjm spp. (naiad) Ngr Najog-Illim (naiad) U.S.G.S. & N.V.C.C. Surrvey Ec Eb&a -&wu (mmmon siodea) C C@a V. (-kg-) Va Valfamna -i- (Mid oelory) Nint Tit Tapa - (vaaer chostnun SCALEol:24,000 JUnknmn spedes comWition -E. 191 UNITED STATES COMMONWEAL71f OF VIRGINIA W LTON QUADRANGLE ERAR'MENT OF THE INTERIOR VIRG NI, JD VISION OF MINERAL RESOURCES 7 5 MIMUTE SERIES (T-RAPHIC) 0EOLOGICAL SURVEY AMES L. CALVER, STATE GMI-OGIST 4; av SUBME RGED AQUATIC VEGETATION - 1987 N G "c 'y NA2 ARM AR@ A M GPKAI J@ HA2 RrnZm V.: A 0 A Ij J'i N1- A E) > - > J 0 A3 A2 FA2 .a Inl@Iihf--Tkh -`7 4_ .: 01 4 X. A 147 DATE FLOWN SPECIES 6-28-87 Zm @'Mm "'Aw (eelgrass) Hv ny*ill-will@ (hydrilla) SURVEY STATIONS WILTON, Rm RWia mnnIw (widgeon grass) Hd ma-h- diVzi (@a, warliniss) Me Myhphyll= spi@ (Eurasian waternnitfoil) Pa P.-g-. @,Ap. (.dy prnl-d) MD Charter Boat Field SuNey VA Ppf P-g- pedolmtW (redheacl@gnnsa) Cd C-@hylf= d-- (wontail) Citizens Field Obsemation 117 PPC P.-g,.n p-nano (Sag. pnd-.d) Ppu P-g-r,,Aul1w (slender ponctweed) Zp @@Wtwp.I-u (h.rnd ponft.ecl) Ngu Nim g-tar@wu (Southern naiad) A VIMS Field Smey NNj.,pp. (raiad) Ngr Njmg-xIIiIm (naiad) U.S.G.S. & N.M.C.C. Survey Ec EL,,d--d-i, (common alodea) C CW-p. (-skg-) Va VILfswfi, -i- (Vvild miary) Nm Njo aw, (slender naiad) Tn Trapa n,a- (".r cheatnun SCALE,1:24.000 'Ma. UUnkn-peciescIampminion 192 UNITED STATES C MMON-EALTH OF VIRGINIA DELTAVILLE QUADRANGLE 0 SEIRG-A MENT OF THE INTERIOR DIVISION OF MINERAL RESOURCES 7.5 MINUTE (Lo@ 0EOLOO ICAL SURVEY JAMES LCALVE@@..@@ATE GEO-ST P @APHIC) SUBMERGED AQUATIC VEGETATION - 1987 I E I E I S L A.I@R, KA2 LAI A4 0 - - - - - - - Mille 4 + ...... .. . oe f JAZ Rm + F A liq 6A FIS@ING --p -R r v m m B A Y SA G I I N W I S I Zo AAZ EAI DA) ;L nlr- A Y 1-0 DATE rLdWIN SPECIE 6-28-87 Z. SH, SURVEY STATIONS DELTAVILLE, RM Ruppia mritim (widgeon grass) Hd Heteardum "ja (water stargrass) IVID Charter Boat Field sumey VA IVIS Myiphyllmpi- (Eurasian watemilloil) Per P-,,-,nsp@s (wdy pondweed) P f lredhesd@graas) Cd C-@hyll@dem- (monsill Citizens Field ObserVation 118 Ppc P-g,-@cdr-, (Sago pondweed) Ppu P-g-pwurw (slender pondweed) ZP @durlliaplmvix (Wrned pondweed) Ngu Najw ,@Wmjj (W@hsm naiad) A VIMS Field SurVey NNajm spp. (naiad) Ngr Nqj. g,-Il- (nalad) U.S.G.S. & NN.C.C. SurVey Ec Eld,, c=,*miv (mmmon elodea) C C@. + (-Skg-) Va VaJIUfi@ -i- (,Aid celery) Nm Najmmu@tslender,aiadi, SCALE 1:24.000 Tn Tr@ - (water chestren) UU,,known SpWas wmpmiflon I 1 0 -A 193 DEPART UNITED ST TES COMMONWEALTH OF VIRGINIA VENT OF THE INTERIOR DIVISION OF M NERAI RES.-CES JAMESVILLE GUADRANGIE ' IA 'GEOLOGICAL SURVEY jAMES LCALV@@,,@:@TE OEO-ST .11.TL SE'R'fG,1SNit0-RAPI- .16 ZA2 SUBMERGED AQUATIC VEGETATION - 1987 Y.A4 Z Rrn,Zryv A3 WAI VA4 A A82 'UAt QA 0 2 PAI NAZ M A-' 4C A R a 0 0 U G-p@ 7@ - 14 JA IA3 LA2 OCCOHA NN N GA3 A2 Al 0 DA4 J, 0 CA o 0 0 BA2 is AA2 2-- DATE FLOWN SPECIES 6-28-87 Zm Z-- -f- (..Ig-) HV Hy&iIj, joricillne (hydrilla) SURVEY STATIONS JAMESVILLE, RM Rppm n-ifim (widgeon gress) Hd Ummm),m dbi, (water stargress) MS Mynphyllmspiarnw, (Eurasian watemil PCr P-gew, mpw (curly pendweed) MD Charter Boat Field SuNey VA Ppf P-g-pe,@brow (redhead-grass) Cd Cl-phyth- d- (Foontivi) Citizens Field Obsewation 119 Ppc PoA-g-p, tincau (sago pondweed) Ppu P-g-p,uilau (sloncer pondweed) Zp (horned! pand-c!) Ngu Maim guadalvemis (southern naiad) A VIMS Field Sumey IN Najas rpp. (noted) Ngr Natim gwillim (naiad) U.S.G.S. & N.V.C.C. SuNey Ec Eld,,ron,,dma (sommon elodea) C Ch-a rp. (..skgr-) Va vwv-w -i- (wad Fewly) Nm N,@. m- (,wndsr naiad;i SCALE t:24,000 Tn T@ - (water chestnut) U Unknown S,odii. -position 194 UE'I@TED STATES COMMONWEALTH OF VIRGINIA WARE NECK OUADRANGLE .."ART. T OF T `RRIGE'S@@ATOPMRAPHIC) HE INTERIOR DIVISION OF MINERAL RESOUKEs 7.5 MINUTE SE GEOLOGICAL SURVEY -SUBMERGED AQUATIC VEGETATION - 1987 Z t W@ .2 4 X ........ ..... 2 '30" 7 !A /* 4, an 7(' . .. ..... ;ij Lj 1.11 . ......... T_. 40 -F VN L I Z' KA3 3 m'Zm OA2 1 2 TA CA A4 Zm 3 A BAZ,, EAT .... ...... GA3 DATE FLOWN SPECIES 6-28-87 Zm Z051"mrim(eeignsai) Hv U),PWIL-nicillm (hydrilla) SURVEY STATIONS WARE NECK, RM RWpfa @dizw; tWidgeon grass) Hd dbia (water stangrass) IVID Charter Boat Field Survey MS Mynphyflun Vk-n (Eurasian watermiltoil) Pcr Po-p-rup. (.dy pndWew) VA Ppf P-gew,@,foliw (recheadkgrass) Cd C-,phyllu,n d-un, (montail) Citizens Field Observation 122 Ppc P-g-@cd-u (sago pondwood) PPU P-g-pusil1w (slender pondmed) Zp Ngu Nj. g@W-4 (southern naiad) A VIMS Field Survey N Njw W. n,md) Ngr Nj. g-11. ("ad) U.S.G.S. & NN.C.C. Survey Ec Elodea cawdeoU (common elodea) C Chanap. (..akg-) Va 14611umr@ -i@ (,,ild celery) Nm Najm m- (slender naiad) TIT T@r-,u(Warercnemnw) SCALE.1:24,000 I Is U Urknmn species mrnposition 195 MAT EWS OUADRANGLE UNITF1 S ATES C MMON@EALTH OF VIRGINIA lin INIA-MATHEIS CO .__,MEr4 OF THE INTERIOR DIVISION OF MINERAL RESOURCES 75 MIN @[email protected] (T-CRAPHIC) GEOLOGICAL SURVEY jAMES L CALVE STATE OFOLOGIST -c-) SUBMERGED AQUATIC VEGETATION 1987' co, N I K 4@ Th, C, :A 7, p DAI I L ZM'RM GAI Zm,Rtn 0- EAI H dl Zm,Rm 2. FA J" HA4 T- I Rm 4 Zm ------------ It 1.71 A' it. j A t A 7-Al '12 '@ Wa -ja -T A 11-7 rn y@ -s L@3 61 Q 2 - . - . ' . p I IZM M r - @MA _5@ OA 1. a DATE FLOW@' ZM ZuAmu-n.(s.lg-) SPECIES HV Hydrill, -willars (hydnlta) 6-28-87 R nn Rppii; nantisria (widgeon gral Hd Hv-mm @&; (,war stargal SURVEY STATIONS MATHEWS, MS My-phyII.VIraa,m (Eurasian waterml PCr P-g- Nmrpw (Why pondweed) N MID Charter Boat Field SurVey VA Ppf P-g-peplianui (redhead-greas) Cd cr-phyuu,n&w- (momail) DOS P-8-pecrinsau, (sago pondweed) PPU P-gew,pwillw (Slender pondweed) 0 Citizens Field ObSewation 123 Zp Zii%ivchelliapshutu (homed ponitweed) NgU Nqix :,a"Ani (southern naiad) A VIMS Field Sumy NNj. ,M. (n.id) Ngr Njw -illuw (naiad) U.S.G.S. & N.V.C.C. SuNey EC Ekdra caa&,wir (mmmon elodea) CChamp. (muskgnass) 4 4 JA2 A 'M Z Va vallumna a,,umfca- (mid ol Nnn Nalial (slender naiad) SCALE 1:24,000 TIT TN;,,a - (water chestnut) UUn- -611 -position 196 a woo UNITE STATES COMMONWEALTH OF VIRGINIA OE?@RTMENT OF THE INTERIOR DIVISION OF MINERAL RESOURCES GEOLOGICAL SURVEY JAMES L.CALVER.STATE GEOLWIST MI1UTE S.R@E:! DBI SUBMERGED AQUATIC VEGETATION 1987 r @-z 01 ID r ZA3 P, 06B4 _0 3 0 I T I TAZ TZ ----------- 4il, 0 oo7 t RA3 5 44 A QA2 D, -! PAI IL LA3 A j Zm % _j Rm Zp KA4 I I N I A I E NA4 FA3 GAI A.3 A4,, EA31 N, S.N All, DA2 ,CA2 L T . BA4 SPECIES DATE FLOWN Zrn HV H@Iki (hydrilla) 6-28-87 R. Hd H-1@1-4iti. (Woner garigniall) SURVEY STATIONS FRANKTOWN, Me Miyn,iphyltiiin lp-niin (EU-1 Mete-Wii) ROT -- (_1, RRn-ed) MD Ch2iter Boat Field Survey VA ppf Cd c-phy@ el. (=,M,:) P-g- pill- (sago xiNdWWad) PPU P-ginnilpl (Welde, DO, O.Wed) Citizens Field Cbseni 124 ZP @An11krpWw,- norned ponaWeed) Ng. N.,.,ow.@- nW-) A VINIS Field Survey N ,.-,p@ (no.) Ng, iR. n-liun. (new) ED E@, @a (O,imman Modimu C C@. , # U.S.G@S. & NAI.C@C. Suney Va V@11- (ill celary) Nm Va)@iiww, (Wonder majaIl) Tn -,-. - I SCALE.1 24 000 U Unn-n @p-ss -p-n- 197 BR@NOON QU@DRANGI-r UNITED STATES C MMONwEALTH OF YIROINIA V CNA ..@_,IYIENT OF. THE INTERIOR DIVISION OF M NERAL RESOURCES 15 MINUTF SFRIFS J10-RAPHIL) aEOLOO CAL SURVEY Is - 'SUBMERGED AQUATIC VEGETATION 1987. 9, 0 j\ it v 'Do 0 A- @3 j. I-s.p.." T. f,. '-se, Qt" Z lk: + DATE FLOWN -Z@:, SPECIES 6-28-87 Zin MH. (eelgress), H@ Hy&,14, @rndjj= (hydrilla) SURVEY STATIONS BRANDON RED R-ia mmari- (Vwdg-n g-) Hill H11-111, dlbw (water stargrass) MD Charter Boat Field Suwey vx A. Ms HyophylI (Eurasian wavlomilfoil) Pcr p-,,-@pw (OUdy pondweeJ) Ppf P-gewn@,fol@ (radhiliad-greSS) Cd C-ophyfiendem- (montail) Citizens Field Obsenration 127 PpC (sago pondweed) PpU p-gm.pwil1w (slender pondweed) Zp @OhINpWrrLr (h.rndI pnd...d) Ngu Naim jlua"@mis (mUthem naiad) A VIMS Field Survey NNaim Vp. (naiad) Ngr Najmg-i11ima (naiad) U.S.G.S. & N.V.C.C. Survey Ec EZ,&Niass*mij (wmmn slod0a) C ChsNi, ip. Va Vallimm @fic-m (wild MlOrlf) Nnn Majw rdlm, (slender naiad) SCALE 1:24.000 Tn T_-(-t.rch9S1SUl) UUrn,nown s,,soss -nnp@i- 198 UNITED STATES DEPARTMEN1 ", T.E "" "'a N.IR.E ..A.'[email protected] GEOLOGICAL URVEY 75 MINUTE SUBMERGED AQUATIC VEGETATION - 1 7 1.7 WN f WIN w, \�1 19, 10 an 1.1-d ) X-01 .a,- I *K, a A $ $ -j 47 ...... ....... -K, a V p 5, lir, 4 ------ -- ------ ------ 2v- '31 ....... S DATE FLOWI@ Zm Z.- (..Ig-) SPECIE Hv Hydillo w,acillon, (hyanita) 6-28-87 RM Rwpia-ifim(widgeargraaIi) Hd Hemmahera dbi, (waler margrass) SURVEY STATIONS NORGE, Ms myriophyllwn spi- (Eurasian watermilloit Pcr Po-g,.. @,upus (cidy prdind) MD Charter Boat Field SuNey VA Ppf PoInnu,getonperfo(faw (redhead-grass) Cd Cnuphyuw@ dem- (womail) Citizens Field Observation PPC P-gm,pcfi@ (sago pordwood) pp. 128 Zp (h.rnad pnd-d) Ngu Naj. (s:nAha. naiad) A VIMS Field Sunney N Njwpp* (naiad) Ngr Njw groellvna (naiad) Ec El@&. (common elodea) CChr. . (,nu,kq-) U.S.G.S. & N.N.C.C. Su,.y Va vali-ria aneri,,ana (wild mlery) Nm Najmnunar(@Ilanoarinsimd) Tn T@ - (water chest,nn) SCALE,1:24, 0 1 IE U Unknown soades compod ion 199 ACHILLES QUADR-CLE UNITED STATES COMMON.EALTH OF VIRGIN" TOPOGRAPHIC) ._._MENT OF THE INTERIOR o1VISION OF MINERAL RESOURCM. 7 5 MI1UTE 5=@(A GEOLOGICAL SURVEY JAMM [email protected].,@LATE GEOLOOIST AxBz2r@ Rriti z ZB3 A VB4 - B2 AQUATIC ---SUBMER'GED B4 VEGETATION 1987 T SB2 z Rmm.. M83 V11 QB LBI P NB4 .a +\ Z7 Y @B4 GB3 /E YA 4- CB4 AB2 N N KAI BB4 .......... 41111 VA4 @7 N2 m v RM QA4 7 0 Aid C, M M. IA@ JA LA2 in m GA4 in EA4 '0 rA4. Zm DATES FLOWN 6-6-87 SPECIES 6-28-87 zm &--i-0.19"ass) HV Hdill- -Idcill-- (hyd'ill-) SURVEY STATIONS ACHILLES, Rm RWia nodo@ (vAdgwn grass) Hd d-b@ MID Charter Boat Field SurVey MS my@,,Wj@ spiosn- (Eurasian watermiltoil) Pcr p_g- crispo (wdy pond-.d) VA Ppf p_g- prfoliaw iredhead-gross) Cd C,,oAvhyll= de- (OOO"SI Cilium Field Obsewation 131 ppc po-gm, pecd@ (Sago pond-d) pp, p_g- pwllj@ (slander pondweed) VIMS Field Survey P.--Z- Zp Z,,,dchej@pat=ffj, (horned pondweed) Ngu Njw gwdalW,wis (southern naiad) N Najw w (naiad) Ngr Njw grwillm, (naiad) U.S.G.S. & N.V.C.C. Survey Ec El,&. om,&mu (common ei0dea) C C)w, V. (muskgross) V. -4- -li- W. -I- .Y) Nm Nqjw dw, (Slander naiad) SCALE 1:24MO Tn T,,,o @ (,war chest,nfi) U Union- spaces mmpmfti.n 200 dik NE@ POINT COMFOR QUADRANGLE UNITED STATES C MMONWEALTH OF VIRGINIA 1IRGINIA DEPARTMENT OF THE INTERIOR DIYISION OF MINERAL RESOURCES 7 5 MINUTE SE. An-) GEOLOGICAL SURVEY JAMES L.CALVER.STATE GEO=IST ........ 74 31-22 A41" . ..... -kA SUBMERGED AQUATIC VEGETATION 1987 IA4 FAI P., HA2 Zm. pz+ Lk ZA3 4134 YA4: Z @j A NA5 Cut 3 Rm z m J., ..a 4- ..a QA3 \j .d.k' .,a RA2 el. VA2 SA4 V LIA4 ..a .4 'Al It, AA2 &Zm,Rm Azm Rm we ALZm,Rm EA4 CA4 BAI DA2 No air -w- - DATE FLOWN SPECIES 6-28-87 Zm Z-". -,i- (..Ig-) HV Hydffl, -idfl- Ihydrilla], SURVEY STATIONS NEW POINT RM RupsIa mmUrm (vAdgeon grass) Hd Ht,,w&,, dubi, (,star stargrass) MIS Myriphyllus, spicanan (EUrman atemilfoil) Pcr Pasnog- dpw (curly pordweed) MID Charter Boat Field Sunney COMFORT, VA Ppf P.-g,..p,,*Iia- (rSdh.."-) Cd Cmaphylita, demrsm (mormail) Ciftens Field Observation 132 PPC Pawiage-pectinarar (sago pondweed) PPU P-g-pmilfw (slender pondweed) Zp Zardch,1fiam1- (horned pon"eed) Ngu NAj. gua@@m,,, (southern new) A VIMS Field Survey NNj=,pp. (naiad) Ngr Nj= g .. Ujuw (naiad) Ec Elodea cansdenois (mmmon sloclea) C Clio-p. (muskg-) U.S.G.S. & N.N.C.C. Survey Va V,11hmria -fc- (wild aelery) NM Nqiw mm, (slender naiad) TO Trapa steam (water Chestnut@ SCALE.1:24.000 r .1. UUnknown spades -Position 201 UNITED STATES COMMONWEALTH OF VIRGINIA CAPE CHARLES OU,M)RANGLE DEPARTMENT OF THE INTERIOR DIVISION OF M NEPAL RESOURCES VIRGINIA- OR-AMPION CO GEOLOGICAL SURVEY JAMES L.CALVER,STATE CEOLOOIST MINUTE SER Es JOPO@RAPHIC SUBMERGED AQUATIC VEGETATION - 1987 ..a 'o + KA3 In c- FA3 u /'E 3 JAI c A3 M4 BA2 Rm,Zm i 0. 71 DATE FLO N SPECIES 87 Zm Z- Mim (eelgrarre) Hv Hykill, wrdcill= (hydnil.) SURVEY STATIONS CAPE CHARLES, RM RVpia arijum (widgWn gness, Hd H 4.@.. dbia Steel ms Myn@hyll-p!O- ilEurasan watrmilfoil) PCr P-gm, empw (cudy pond-0d) MID Charter Boat Field SUNSY VA Ppf P-g-pelbliaw (rodhead-grass) Cd Cerwphyu- d- (montail) Citizens Field Obsemation 133 pp, P.-gero, pectre-, (sago pondweed) PPU P-g-pwjlI= (slender pordweed) Zp Zem6"I"palweris (homed pordweed) Ngu Nj. X-dalW.i, (.uth.. naiad) A VIMS Field Surrey NVajw vp (..jd) Ngr Njw gwjjjj- (nmad) U.S.G.S. & N.N.C.C. Suwey Ec El,&, caaa&mi, (w"'mon elodea) C C'-. , (muskgrass) Va VWilmda -- (WId calory) Nm Najw omi@ (slender naiad) SCALE 1:24,000 TO @,- - (VV.a, ch-un UU nkn-n spedes -position 202 EeP4RT UNITED S ATES COMMONWEALTH OF VIRGINIA CHERITON OU@URANGLE VENT OF THE INTERIOR GEOLOGICAL SURVEY DIVISION OF MINERAI REaOCRCES VIRG NIA - NORTIA-70H CC INUTE SERIES (TOPOGRAPHIC To-: SUBMERGED AQUATIC VEGETATION 1987 j u. 4 N'D IAN T 0 W N L a.a /* T1- ICH 20, +; ..a SAO', A. 0 C4 ,A 7- S-; T. @6 CS,SNO A, 14 IT :a DATE FLOWN I SPECIES 6-28-87 "I'll" Zm Z'se,en,"ina(eelgress) HY Hy&dl-nicilldrd (hydifilla) SURVEY STATIONS CHERITON, Rm Rwpi. P-itirna (widgeon gross) Hd H-Own, d@bia (Water atargGaI M MD ClIarter Boat Field Sunrey VA me Mynphyi1en lposru,n (Eurasian wat-1110d) POr P-gew. ,apm (Wry pordweed) F, pf P-g-pefliaw (redhead-grass) Cd Cerwphyll= d- (Doornail) ad) 0 Citizens Field Observation 134 pp. l-,- Re- (ece. I-.) Ppu _A_g_PIARjiw ('1,Rcer pon ZP Zenrichelhapalwn-is (horned pondweed) Ngu Najw gmd&dqvn,R, (southern naiad) A VIMS Field Survey N Nj. p. (n.id) Ngr Najw gracilliew (naiad) U.S.G.S, & N.V.C.C. SuNey Ec, EI.&. canad-i, Ide.) C Chna sp. (muskgrass) Via vallu,,rw anv,,@ (wild celery) Nm Naijwnd., (s(ender naiad) SCALE 1:24,000 Tn TR,@ - (water chasInw) u Unknown species composition 10, 203 UNITED S ATES COMMONwEALTW. OF VIRGINIA YORKTO.N QUADRANGLE DEPARTMENT OF THE INTERIOR DIVISION OF -OURCES IS -- si@ N- (--p-) GEOLOGICAL SIJRVEY SUBMERGED AQUATIC VEGETATION - 1987 Q j na, Zfh � A 7 @7 j A 0 J. /* IV @'z A N "@-7T' g@ ilk M t K - Y - - ---- . .... L;t@Z@t 2N, 0-1 L k %VP .7- IF . .......... I v L I T A H' F S IF a-- Q, 4C' N > \1k DATE FLOWN SPECIES 6-6-87 Zm HV Hy&ill, wMdUars, (hydrilla) SURVEYSTATIONS YOR RM Rwpi. -nu- (.idgwn grass) Hd Her-hns dilii; (water suargrass) MD Charier Boat Field Survey v MS AfyniopAyU=spi- (Eurasian widemilloill Pa (.Hy p-dweed) v Ppf P-je-pdblf.- (radhillid-gnissi) Cd c-,phyuFw,4-- (coontail) z ppc ftu-jl-pecrf@ (sagO pond-sid) Ppu F-g-p,,ollw (slender pondweed) Citizens Field Observation 139 Zp Z-hfipal.- Ih-.d W.'...d) Ngu Nq)-gadsl@m, Isimbram naiad) A VIMS Field Survey N Najwpp. (naiad) Ngr Njw gNiculm, (naiad) U.S.G.S. & N.V.C.C. Survey Ec Ew,, cawd-is (common siodea) C Ch-.ip.(rn.kg-) Va VflismN,, s-riana (wild Oelary) N mNai-nins, (slender naiad) Tn TN,,,e - (..ar.hs.n.) SCALE.1.24,WO '..'r U Unknown, s;Pades -pwition 204 UNITED STATES POCUOSON W ST QUADRANGLE COMMONWEALTH OF VIRGINIA VIRGINIA DEPARTMENT OF THE INTERIOR DIVISION OF MINERAL RESOUKEa GEOLOGICAL SURVEY 7.5 MINUTE SERIES (TOPOGRAPHIC) 74 @C.. -0. YA5 SUBMERGED AQUATIC VEGETAT104-1987. I m UA3 3 f OA2 n 4AI lo .S) '7( 7S L) A4 a 7'..oF -4@. 4 1- @o .......... .. DATE FLOWN 6-6-87 SPECIES Zm Z-'. -'w (e.t9niss) HV Hydrill-ficill- (hydrilla) SURVEY STATIONS RM Rwipl, (widgeon grass) Hd Hem-@,a @w (water iMargres,, POQUOSON M abfy@phyllMh @pi- (Eurasian watemiltoil) Pcr ft-,- ump. (curly pond..0d) N MDCharter Boat Field SurVey WEST, VA Ppf F-g-@,Jbliem (,edhead-g-) Cd Ce-phyum @wrm (coontij) 0 Citizens Field ObserVation 140 PPC P-gew, pchhan,, (Sago pondwead) PPLI P-8- pwi@ Isle- pOn"a ZP Zamdchelliap,1-4 (horned pondweed) NgU Njw g@,-@ir (wwhrn naiad) A VIMS Field Survey 1111 110TORE IS NNajx spp. (naiad) Ngr JVRjm ghwitlim (naiad) U.S.G.S. & N.V.CZ. Survey Ec Eld,, c-*mft (common elodea) C Ch- sp. (muskgrasiI) Va valur ... i. -,Ic- (md cei.,y) Nm Nai-,([email protected]) SCALE 1 24,000 Tn Tapa - (water cheatnull -E UUnknown species composition I I -ER 205 POOUOSON LAST OUADRANGLE E'_'UNIT1D STATES C MMONWEALTH OF VIRGINIA "KINIA MENT OF THE INTERIOR DIVISION OP MINERAL RESOURCES SEE Es JO@RAPHIC) GEOLOGICAL SURVEY S MINUTE SUBMERGED AQUATIC VEGETAT,ION-1987 c H E 8 A P E A K 8 A,, y BAZ At, '@EA2 + FA4 DA4' @7 c N % GA3 K_ __ E_ HAI r A SPECIE S 6-6-87 Z. Zan- rrurm- .1grass) HV Hydill-nirill-, (hydnila) POQUOSON SURVEY STATIONS RM R@pia lmdgeon grase) Hd Hlm-@m dbi, (,war stwgrass) MS My-phyll-,pi- (Eurasian Per P-g- msp,A, (curly pondweedl R MD Charter Boat Field SUwey EAST, VA Ppf Pu-g,w,p,,fuw (redhead-grass) Cd Cr-phylim @w- (womaif) 0 Citizens Field Obsentation 141 Ppc P-g- p,cri,aaa (Sago pondweed) Ppu P-gew.pwiiA,A (sloWer pondweed) Zp @cllliapfwu (hornaa@ pondweed) Ngu Njag-"W,wu (sawhern naiad) A VIMS Field Survey N l-jad) Ngr Nj. g-mi- Inmad) US.G.S. & NN.C.C. Survey EC Eldea rawdemis (m'mon olodea) C Chvarp. (musktinIsS) Via Valli-na -fi- (Wid celery) NRD Njm @wr (slender naiad) SCALE 1:24,000 Tn Tra,,a -, (-W chemnw) L_U Unk- species com@sition 206 UNITED S ATES COMMON.EALTH OF VIRGINIA ELLIOTT$ CREEK GUADF@NGLE CEIRARTMENT OF THE INTERIOR DIVISION OF MINERAL RESOURCES VIRGINIA - NORTHAM- CO GEOLOGICAL SURVEY JAMES L CAL ER, STATE GEOILOQIST 15 Mlr1UTE -IFS (TOI-IAIHIC)1, SUBMERGED AQUATIC VEGETATION -1987/,1"/"" BAI z.: N-; ZK. nr + + A + + -n- ....... K1. DATE FLOWN SPECIES 6-28-87 ZT, Z.- .H. Hy@,14, w-it- (hydnila) SURVEY STATIONS ELLICITTS Rm @wpia @isma (.dg-. grass) Hd H-sAr&,, dbi, (water stargrass) 0 MD Charter Boat Field Sunney CREEK, VA MS Hynphyll-picanen (Eurasian watemilfal) PCr P-gm-rrow (Wry pondweed) PPI (rodheadl-gri Cd Cenunphytiwnd- (coartaii) 0 Citizens Field ObSeNation 14Z Ppo P-g-p,,d=w (saga pondweed) Ppu P-g-npwulw (slander pordwsedi Zp (horned! pondweed) Ngu Njm S@Wm@ (Sauthern naiad) A VIMS Field SuNery NNalat ssp. (naiad) Ngr Natim Swillfaa trained) U.S.G.S. & N.V.C.C. Survey Ec Eindea canademis (common alodest) C Ch-p. (.uSkgrm) Va Valli-fi. -i,- (Mid celery) NM Najw Wna, (slander naiad) SCALE 1:24,DOO Tn Twra - (water chesunit) UUnJOIown species composition 207 ONITE0 STA-rF@ aeo@RTMENT,OF TH e INTERIOR OF VIRGINIA Tq-NSFN[) OI)AWANOL.C rEOLOO CAL SURVVV DIVISION OP MINERAL RESOUKEs 1,5 VEGETATION 1 SUBMERGED AQUATIt" lp AA4 , - Lll@ --fe --,qj ZZ u J, 57- ul g to 71 s, X- - u SPECIES FL(aWN HV Hyd,11a wraijku, fliYdfift) 6-28,87 i'd ( SURVEY STATIONs TOWNSENO A4yipW-,,j- lE',vasix, W.1-4.0 PZ5 vw I-my P.O.0d) OaM, &at FielI SolveY vx ppf P-@ph- . Cei ppc ip-nife, ppofi",;@ Citizens rield ObSentAlioO 143 4' (MM40 M'40"l 14DU NV- W-bM @-idI A VIMS Field Survey + US.G.& & N,V-C.C. S-y ch.- (@@Iaw V6 NM Tn Vv. (.41.,;@hestnun SCAL%1@24,WO 208 'x ONIIED I@A FS COMMONWEAL114 (IF VIROMIA DEPARIM1,Nt OF HE INTERIOR or OEOtOGICAL SURVEY SUBMERGED AQUATIC VEGETATION J A Z KA4 --- ----- -- 04 IA3 CA4 ',DA4 14 H A@l A \N' 1*41 BA4 EA4 IA AA4(@" idt- 4v L HAN' A 1, S DATE FLOWN - P'- 47 SPECIES r' Z@ &-,. -m (..1gr-) Hy llydilto -twill- ihyddlla@ SURVEY STATIONS HAMPTON, pt@ @-. -.- (..g- g,.,) Hd I E MD ChArfor B@f Fiekd SurVoy j M. (E.- PC, p-,.- ".@Y -@-J) VA PPf P-91Z.pllfWwW (,Whsae@g-) CA 1--) $ Gffi-- Fi.Ld Ob-,wi- 147 Ppc P-,-p-j- I..q. wryjw..d) PpU P-,- PDW-d) Zp [email protected] (wnd [email protected]) Ng., .j., I-Ah- VIMS FlOd S@,w N ftj-p, Omd) Nqr .j.-im- (.id) 03 G.S & N V,(@ G @',t-ay Ec E@. -i, 1-mn alodeai c I m'@ @' (-*91-) va va-- -- (wo CatoY) Nm 'w., m- -"m SGAI F 1 24 DOO Tn T- - lwv., IJ Un@- - --l- 209 UNITED STATES C MMONWEALTH OF VIRGINIA C PE HENRY QUADRANGLE DEPARTMENT OF THE INTERIOR DIOVISION OF MINERAL RESOURCES VIRGNIA-VIROINIA BEACH CITY CEOLOOICAL SURVEY 7.5 MINUTE SERIES (TOnOGRAPHIC) _N SUBMERGED AQUATIC VEGETATION 1987 e\H _-E A P E A Y oft C) + C A L' Y N N A E N--___. .1 A P S :--v V Em qA LYNNHAVEN BAY Z T -WE y v VMG L du DATE FLOWN SPECIES 6-6-87 ZM Z.- -6- (.Ig-) Hv Hydrilla,mad1fara (hydlilla) SURVEY STATIONS CAPE HENRY, Rm Rpoia-i(wjdgaongrasS) Hd @ia (.w. atq-) IVID Charter Boat Field Survey VA MS blymphyff-pl-ri (Eurasia, lat-11fal) pcr P.A-gm. "upw toudy pondweed) Ppf P-g-p,,fIiaaa (redhead-grasii) Cd C-phyllurrid,-Im (MOntail) Citizens Field Obsewation 152 PPC P-geonxiTimw (sno pandwead) PpU P-g-pusillm (slender pond@ad) Zp ZaWchIIiapaIwp* (homed pondweed) Ngu NaJor gii,"uperU4 (Southern naiad) A VIMS Field SurVey N Njor @p. (naiad) Ngr Njw grwinirna (naiad) U.S.G.S. & N.V.C.C. Survey Ec Ei,*, c-d-is tocrumn elodea) C C@, V. (muskgrass) Va Vallimeria arnt,,,iina (wild ostary) Nm Njw mw, Islander naiad) SCALE 124.000 Tn T- LI Unk- species composfton A 210 TATE UN TEL) STA rES BRISTOL QUADRANGLE .1 1 A I, I I'll 11111T@1@111@1@ Tit E SINTER., UC, -NT OF I HE ARMY MARY ARTM S,1AIT. CORPS Ct@INEERS I I .1-Tr SE I O,.U_P, GEOLO""ICAL SURVEY @SUBMERGED AQUATIC VEGETATION 198 , vm -Zf 7 J( L3 -R J rnL E c r@ iw0l- i'r Me G C) Cd 147W Oil in- @i@ V. r M." 111. S "0 DATE FLOWN SPECIES 9-1-87 % Zm, zo- rahine (eelgres,S) Hv Hydil@,,nkfflor, (hydrilhat SURVEY STATIONS B I L Rm Rvinia -Nuw (widgeon grass) Hd H-hmadibw (-tarwarghass) N MD Charter Boat Field Sumey M Me MYNphytt-pi-,, (Eureeian watiminfoil) Pcr (wdy pondW ad Ppf P-g-perfoliaw (Padhud-grasii) Cd Cewrophyu,,,ndew- (wontail e 0 Citizens Field ObsewatiOn 159 Ppc P.-g,..p,cd-. (-go D..d-.d) PPU P-g-peill1w (slander pondMed) Zp Znftnc@111apa1,,,,ffi$ (homed pond,,ahnn Ngu Njw (southern naiad) A VIMS Field Sur;ey N Nerjas Vp. (naiad) Ngr NJ@ pwilli= (naiad) U.S.G.S. & N.V.C.C. Survey rc Elada cawd-is (oommon alodea) C Chaap. (muskgras,S) Va Vas---,,c- Ij)d.eJ.,y) Non (slender naiad) Tn T,.pa - (..1-hasta,A) SCALE .1:24,000 .11E U Unknown species composition 1 1 KILOMETER 211 UNIT PORT TOBAC 0 QUADRANGLE DEPARTM ENTEOFSTAHTEE SINTE RIO R MIRYLAND 7 5 MINUTE SER1E (TO-1-C BATHYMETRIC) GEOLOGICAL SUR@EY -r-v 77IX V, A2 SUBMERGED AQUATIC VEGETATION 1987 IN' J, -@-Aj @v v S@ N" 23@ @j -v" n- 71;,; -A In .4 ' iMrMle'. t@Y iV 41 A4 A4 .......... DATE FLOWN SPECIES 9-25-87 Zrn zo"".-'b.(..Ighass) Hv Hydijja wmicitlere, (hydinfla) SURVEY STATIONS PORT TOBACCO, AM RVpi, reinivre, (wdgeon grass) Hd HN,-@ra dubia (water stargrese) MS MydphyIt=spjcaEm (Eurasian waternhiltoil) Pcr P-gemn cispW (Mdy pondweed) MD Charter Boat Field Suwey MD P P-gmrpeffiohor (redhead-grasi) Cd Cerawphyllm dew- (coontail) pf CitUens Field Observation 161 PpC Poainneggon pecrb-i (sago pondweed) Ppu P-g-p=iI1w (slender pondweed) zp @,AIliaplwwir (homed pondweed) Ngu Najo; guadalWemi, (southern naiad) A VIMS Field Survey N Nqj= vp. (naiad) Ngr fty. g-iffi- (naiad) U.S.G.S. & N.N.C.C. SuNey Ec E@a cowdmis (oommon elodea) C C@. V. (nius),glass) Va Voflu.,ia - (Mind calory) Nrin Nei-ino, (slender naiad) SCALE 124.000 TIT Tapa @ waier chestnut) u U-- species oomposhb. 212 UNITED STATES BERLIN QUADRANGLE AR LAND-WORCESTER - DEPARTMENT OF THE INTE ]OR aEOLOGICAL SURVEY MINUTE SERIE8 (TO@RAPHIC), i2 x" v 'AL UATIC VEGFTA ION - 1987 -.@SuBkRGED Z Jo -4 T'- & r I u .4 7 4" ok J 'u, el- L 7 Aime DATE FLOWN SPECIES Zm HV HY&M. -WdU- (hy&WW Film &@,a .. ub.. t geIIe) Hd H .. SURVEY STATIONS BERLIN, ms mpkpkyg- ff.-awwwals-mm) Ftr P@g-saimm(calypwdMood) m MD Chaftr Boat Fielid Sumey MD po Cd CgpWh-d-M (CM-) $ Mum Field Observation 167 ppc p-m-sel-P.-d- pmftwm Ppu ZO @pW-(.(h.-dp.W-mM NgU mg, A VIMS Field Sumey N AW.*V. (-I" Ngr i EC 87.4-modmak WdW c U.S.G.S. & NN.C.C. Sumey Va va&-h-kaw(vmowwo Nm SCALE 124=0 Ta T.F.-It-wduamo MEE UL U'k_ ").d. -P@'W' 213 UNITED S ITES OCEA N CITY OUA RANGLE "_,ME NT OF THE INTERIOR MIRYLAND 'ORCESIER CO GEOLOGICAL SURVEY "I El I RA11- Ir SUBMERGED AQUATIC VEGETATION - 1987 @7. B A Y Ir A. .0- City 4@ .2 CDAA BA .4 DA ,TE FLOW@T 411 SPECIES 8-11-87 Zm Z-@-(wgrass) Hv Hydnill, -,W- (hydnila) SURVEY STATIONS OCEAN CITY Rm Rnplez @Ilnl (widg- grass) Hd Hrn,-@,, dbiiz I- stargrass) IVIS Myriphyll-pit-, (Eurasian watermiltoil) Pcr Por-g,-upw (curly pond-c!) MID Charter Boat Field Survey m Ppt P-gew.pe,)b1i-u(nsdhea"rass) Cd Crnrnphyll@ dew- (montail) Citizens Field Obsemation 168 Ppc P-gm, pecrinaw (sago pondweed) Ppu Por-g-pwil1w (slender ponctnoood) Zp @CW1141@1-Mf (hGrnW pond-ed) Ngu Njw gw4dV-xs (southern naiad) A VIMS Field SurVey NNjwpp. (naiad) Ngr Nqjw g-iltinw (naiad) U.S.G.S. & NN.C.C. SuNey Ec Ewt, cwdmi, (mmmon elodea) C Ch-p. (.uskg-) va @.Uun,n. -ic.- (WW Warr) NM Nj= rtim, (slender naiad) SCALE 1:24,000 Tn T- . I- -.utj UUnkno.n species mmposition 214 UNITED STATES TINGLES ISLAND QUADRANGLE MARYLAND-WORC-TEn - MENT OF THE INTERIOR "I GEOLOGICAL SURVEY 7 MINUTE SERIES (TOPOGRA r_) SUBMERGED AQUATIC VEGETATION 1987, 4 A4 FA4 Zm FAA Zm' OCA 4 DA . . . . . . . . . . . . . . Zm Rm ,9A4 *Zm j Ozm CD Zme X"I Rm AA3 RIM RA Film Zm Rm IT q 2 ..... ....... DATE FLOWN SPECIES 8-11-87 Zm Z-. -ma J..Ig,-) HV HydUM ,MiUm (hydrifla), SURVEY STAT(ONS TINGLES ISLAND, Rim Ruppia nuoitura (Widgeon grai Hd H--@,, @w (wmer stargrpa@) MC, Charter Boat Field Survey MD MS Mynphyllun spi- (Eurasian watermiffoil) Pcr P-g- cwp. (cudy pnd...d) Plpf P-g-p,,fhw (rodhead-grass) Cd Cr-Phy1huh dem- (monlail) Citizens Field Observation 170 Pipc P-g-pch@ (sago po,dwaaa) Ppu P-g- pu,alw J,I,W,r p- ZP (horned pondv,,ed) Ngu Nj. 8@@- (southern naiad) VIMS Field Survey NNjw spp. (naiad) Ngr Najw gracilluna (naiad) ED EW-c-knuis (common ehodea) C Char. . (..skgr-) U.S.G.S. & N.V.C.C. Survey Va V.11uma -i.. lorild I.ry) Nnn Novw dw, (slender naiad) SCALE 1:24,000 Tin Thapa - (water chewnui) JUnkhmn species composition If 215 UNITED STATES BOXIRON QUADRANGLE IAIYUND VIRGINIA DEPARTMENTIOF THE INTERIOR 5 .,.UTS SERIES (TO@RAMC GEOLOO CAL SURVEY SUBMERGED AQUATIC VEGETATION - 1987 P. d Ab, BROCKATONORrON BA 11 + + C de )I/A4 ROWLIFY r JOHNSON DAY @FA c- 0 A 2 A DA Y 4 + WNS r @l 8 A N Ill &A '&3 N A 10 L It a AA3 T19/ T, ArLAN '011 MATE FLOWN SPECIES 8-11-87 Zm Z- -1- (0.10-) HV Rydn[W -ddU- (hydrM.) SURVEY STATIONS BOX[RON, Rm RWA. -.b- (Wdgem grige) Hd &*I. (%ae.r slargroma) MS M)7wpAVHm Wi-a (Ewaslan vM9mMW PCr poomwS- @b,,ar (audy pondweadi MD Charter Ow Field Survey MD-VA Ppt P.-8-.pedbu- (rsdh..d-grass@ Cd c,..pkju-d-(c..ul) Cdmm FWM ObSemation ppe PpU P-W-p.Wm,(d-dp..l-*d) ZP -M4-b (horned Mn&-*M Ngu NqW lodaiwa-, (muftm nmlsdi@ A VIMS FWW Survey N Natfm *P. (naiad) Ngr NqW Inage- (.Wad) U.S.G.S. IN 14M.C.C. Survey EC E&,&. c..*.b (--n WdW 0 ch- V. (.Udq-) 4 Va Vallunedd mwfom (wild Mary) Nm N4W ad- (dender noloM SCALE 124.000 Tn Twa - (,aaw dwsftA) U Unk-on species mmposhlon 216 UNITED STATES H1T-rINGTON POINT QUADRANGLE EEPARTMENT OF THE INTERIOR MIMMIRYLAND- VIRGIN A GEOLOGICAL SURVEY 7 5 UTE SERIES TOPOGRAPHIC) 15' -1 1- 11 1. @c a 7-7-- SUBMERGED AQUATIC VEGETATION 1987 C@@A4 EA DA3 CA A4 AA4 CZD -.7 V./ IP- ,joI Mc zMai'Mr- 12 a I. WN SPECIES 8-11-87 ZM "dw (eelgNtea) H, Hydnilla-inflara Rydnlla) SURVEY STATIONS WHITTINGTON RM Rppi, -,tuw (,idgwn grass) Hd H-Awl- dbi, (,War atargrasS) MD Charter Boat Field Survey POINT, MD-VA Me Mydphyll@Vi@ (Eum,an @ermiltoii) pa P-g- C'wp@ (Cudy pondsed) Plot P-g-.XfWi- iradheed-grass) Cd C-Rphylt- dew- (Goomail) Citizens Field Obs-ation 173 PpC P-gew, p-iAtna ($ago por,tweed) PPU Potanog- pwillw (Slander pondweed) ZP @,C@1111palwtla (homed poho-d) Ngu Njwgeadc1Wwu (southem naiad) A VIMS Field S-ey NNdjw spe. (naiad) Ngr Natiou gantfim (nai U.S.G.S. & N.V.C.C. Sur.ay EC EIM-adwu (common eloci C ChaN, V. muskgnass) Va VWIi-i. -i.- (Wild celery) NM Nj= num, (stance, naiad@ SCALE 1:24,DOO Tn TN;,c - (.at., chSatnW) UUnkno.n species composition 217a 'A UNITED STATES CHINCOTEAGUE: EAST QUADRANGLE DEPARTMENT OF THE INTERIOR l VIRGINIA-ACCOMACK CC GEOLOG CAL SURVEY 75 MJN UIC slInl- /(SUBMERGED AQUATIC VEGETATION - 1987 a, AA3 T- P 0 A, A /IV /4 or ,j ev CD dw DATE FLOWN 8-11-87 CHINCOTEAGUE TOMS COVE EAST, VA 175 kj SPECIES KV Hypill, wHiifloto thydrilla) SURVEY STATIONS Zm Zoil--inc(lielglass) Rm Rlippia swipeI (widgeon grass) Hd Hve-hem dbi, (,Wlir Margress) MS Myh,,ohyll,,n, spfcoo,o, (Eumian watemiltoll) Pcr poao,,g- cirliplo (mily pandwood) MID Charter Boat Field Survey Ppf P-g,ro.pedblorw(redheaegC-) Cd C-qphyllm dr-sm (coomail) Citizens Field Obsewalion Pipu P,,on,,,g-p,,,,ilIw (slender pondweed) PpC P-gek,.,,,,dnacr,s (sago pondWeedt Zp zietruChellipol-il (horned pondweed) Ngu Njw gw"Wmg (soldhern naiad) A VIMS Field Survey N Nej-pp. (naiad) Ngr Njm g@llina (naiad) U.S.G.S. & NN.C.C. SuNey EC Eirde, Cinademis (Cemmon elodea) C Ch- V. (-ekgr-) Via V.Ilf-fi. -n- (wild celery) N m Norm iiii- (slender naiad) SCALE 1:24,000 T. I- - (..or J Unknown species composition 217b -N ANACOSTIA QUADRANGLE MEN OF THE INTERIOR D STlICT 01 CO -1-A MA"L"' EOLOGICAL SURVEY 7 5 MINUTE SERIES (TOR-AR- a SUBMERGED AQUATIC VEGETATION V -y P k d" utz"i P le, fei P ....... > T ;.1 to 'it I 7 j=@'KDRMWS $&@R FORtE-BASE _r%r. A R) 41\, 7v x 0: tk ItZ "IT 10 DATE FLOWN SP ECIES 9-2-87 ZM ZoN .. rrouri. (eelghaas) HV Hy&d&, w1i,ilke. (hydrilla) SURVEY STATIONS ANACOSTIA, RIM RVpi, rlai twidgeor, grass) Hd Hemani dbi, (water stargrats) E MD Charter Boat Field Survey DC-MD MS Mynphylkintspicarwn (Eurasian watemilfoil) PCr Po-g- ci,,. (.Hy pondwad) Poll P-,,R,.,,,jWioSS (NdI1nad,;;rssS) Gd C-rphyIIS,,I (coont.10 0 C lizens Field ObserVation 176 PPC P-gm, p-inerl, (sago pondweed) Ppu P-g-pSaaw (slender pondweed, ZP (homed pondweed) Ngu Nj. (wamern naiad) A VIMS Field Survey ...... N Neyar pp. (naiad) Ngr NjaS g-HIMee (naiad) U.S.G.S. & N.N.C.C. SUrvey EC El@,oonoikwhl (common elodea) C C@, V. (muskgr ass) Va V.Ili-ria -I- (wId -Inry) Nm Nj. I-, Islands, T.Itid) SCALE 1:24,000 Tn Trapa earew (water Chestnut) l -E U Unknown species composition 217c APPENDIX D 1987 SAV BED AREAS FOR EACH TOPOGRAPHIC QUADRANGLE 218 APPENDIX D NUMBER OF SQUARE METERS OF SAV FOR INDIVIDUAL BEDS BY TOPOGRAPHIC QUADRANGLE. (SEE MAPS IN APPENDIX C FOR LOCATION OF EACH BED. QUADRANGLES ARE LISTED NUMERICALLY BY VIMS CHART NUMBER.) ABERDEEN MD. HAVRE DE GRACE MD. (continued) VIMS CHART # 002 VIMS CHART 003 AA3 16620 WA4 22560 BA4 4439 XA4 9817 DA3 1082 YA4 6738 EA3 1720 ZA4 3306 FA3 9556 AB4 28580 GA4 6977 BB3 72810 CA3 1409 CB4 13200 DB4 7240 TOTAL AREA EB3 9537 ---------- FB3 2796 DENSITY 1 = 0 GB3 9458 DENSITY 2 = 0 HB3 12290 DENSITY 3 = 30387 IB3 2423 DENSITY 4 = 11416 JB4 26040 KB4 132100 TOTAL 41803 LB4 3807 MB4 1000 HAVRE DE GRACE MD. NB4 1623 VIMS CHART 003 OB4 2970 PB4 21690 AA3 5300 QB4 6049 BA3 13550 RB4 15440 CA3 2254 SB2 38960 DA3 1335 TB4 10790 EA3 2640 UB4 204600 FA2 23980 VB3 26220 GA2 3796 WB2 66100 HA4 10700 XB2 11800 IA4 56080 YB1 17110000 JA4 -238200 ZB3 2922 KA2 258800 LA4 40060 TOTAL AREA MA4 6050 ---------- NA4 10590 DENSITY 1 = 17109999 OA4 2708 DENSITY 2 = 403436 PA4 2800 DENSITY 3 = 163535 QA4 3683 DENSITY 4 = 901953 RA4 1766 SA4 577 TOTAL 18578920 TA4 1079 UA4 1502 VA4 8608 219 NORTH EAST MD. SPESUTIE MD. VIMS CHART # 004 VIMS CHART 009 AA2 3135 AA3 6785 BA2 9246 BA3 1676 CA3 32610 CA3 189600 DA3 4680 DA3 12320 EA2 6807 EA2 4459 FA4 1087 FA3 10210 GA4 2327 GA3 4792 HA3 2919 TOTAL AREA IA3 1787 ---------- JA1 3562000 DENSITY I = 0 DENSITY 2 = 19188 TOTAL AREA DENSITY 3 = 37290 ---------- .DENSITY 4 3414 DENSITY 1 3562000 DENSITY 2,= 4459 TOTAL 59892 DENSITY 3 = 230089 DENSITY 4 = 0 EDGEWOOD MD. TOTAL 3796548 VIMS CHART 007 AA2 3823 BA3 1352 EARLEVILLE MD. VIMS CHART # 010 TOTAL AREA ---------- AA3 1974 DENSITY 1 0 BA3 28230 DENSITY 2 3823 CA3 827 DENSITY 3 1352 DA2 6483 DENSITY 4 0 EA3 6032 FA3 1043 TOTAL 5175 GA3 2295 PERRYMAN MD. TOTAL AREA VIMS CHART 008 ---------- DENSITY 1 = 0 AA3 29280 DENSITY 2 = 6483 DENSITY 3 = 40401 TOTAL AREA DENSITY 4 = 0 ---------- DENSITY 1 0 TOTAL 46884 DENSITY 2 0 DENSITY 3 29280 DENSITY 4 0 TOTAL 29280 220 MIDDLE RIVER MD. GUNPOWER NECK MD. (continued) VIMS CHART 013 VIMS CHART 014 AA4 45640 AB2 7412 BA4 19480 BB1 42230 CA3 4746 CBI 11090 DA2 43250 DB3 48830 EAl 20030 EB4 56580 FA3 14470 FB2 9133 HA3 7819 GB4 41360 IA2 16140 HB3 86280 GA4 25690 IB3 17930 JA2 23170 JB3 11610 TOTAL AREA TOTAL AREA ---------- ---------- DENSITY 1 = 20030 DENSITY 1 = 62297 DENSITY 2 = 82560 DENSITY 2 = 97992 DENSITY 3 = 27035 DENSITY 3 = 502870 DENSITY 4 = 90810 DENSITY 4 = 242275 TOTAL 220435 TOTAL 905434 GUNPOWER NECK MD. HANESVILLE MD. VIMS CHART 014 VIMS CHART 015 AA2 32400 AA3 24970 BA3 49080 BA3 10310 CA3 40430 CAl 217400 DA3 31940 DA2 4795 EA4 3321 EA3 13060 FAl 4353 FA3 15970 GAl 4624 GA2 1855 HA3 41870 HA2 70210 IA3 54090 IA3 25560 JA3 25860 JA4 604 KA3 30220 KA3 38770 LA3 8041 MA4 43550 TOTAL AREA NA4 1954 ---------- OA4 22840 DENSITY 1 = 217400 PA4 15170 DENSITY 2 = 76860 QA2 5889 DENSITY 3 = 128640 RA3 8149 DENSITY 4 = 604 SA2 1228 TA3 11250 TOTAL 423504 UA2 17410 VA3 16880 WA2 24520 XA3 20410 YA4 23300 ZA4 34200 221 BETTERTON MD. SWAN POINT MD. VIMS CHART 016 VIMS CHART # 020 AA4 3752 AA2 1919 BA2 106300 BA2 2151 CA4 17140 CA2 3006 DA4 5224 DA2 3445 EA3 23220 EAl 3171 FA3 8780 FA3 2357 GA3 24930 HA3 2525 TOTAL AREA IA3 1195 ---------- JA3 1103 DENSITY 1 = 3171 KA3 1700 DENSITY 2 = 10521 LA3 2256 DENSITY 3 = 2357 DENSITY 4 = 0 TOTAL AREA ---------- TOTAL 16049 DENSITY I = 0 DENSITY 2 = 106300 ROCK HALL MD. DENSITY 3- 65709 VIMS CHART # 021 DENSITY 4 26116 AA1 42710 TOTAL 198125 BA4 10400 GALENA MD. TOTAL AREA VIMS' CHART 017 ---- ----- DENSITY 1 = 42710 AA3 74120 DENSITY 2 = 0 BA3 1569 DENSITY 3 = 0 DENSITY 4 = 10400 TOTAL AREA ---------- TOTAL 53110 DENSITY 1 = 0 DENSITY 2 = 0 GIBSON ISLAND MD. DENSITY 3 = 75689 VIMS CHART 024 DENSITY 4 = 0 AA3 2581 TOTAL 75689 TOTAL AREA ---------- DENSITY 1 0 DENSITY 2 0 DENSITY 3 2581 DENSITY 4 0 TOTAL 2581 222 LANGFORD CREEK MD. LANGFORD CREEK MD. (continued) VIMS CHART 026 VIMS CHART 026 AA3 161400 XB3 9256 BA2 2862 YB3 4978 CA2 2397 ZB3 3819 DA3 12440 AC4 63910 EA2 4105 BC2 21330 FA2 2759 CC4 1539000 GA3 105500 DC2 452400 HAl 24410 EC3 43840 IA3 85150 FC2 10240 JA3 15860 GC3 28140 KA2 2617 HC3 12250 LA2 3569 MA2 5085 TOTAL AREA NAl 5005 ---------- OA3 154700 DENSITY I = 29415 PA4 68910 DENSITY 2 = 1061133 QA3 38210 DENSITY 3 = 922118 RA4 1116 DENSITY 4 = 2979086 SA2 6031 TA2 3001 TOTAL 4991752 UA2 31760 VA4 61780 CENTREVILLE MD. XA2 21690 VIMS CHART 027 WA4 69520 YA2 152000 AA3 12180 ZA4 413000 BA2 2294 AB2 55810 BB2 9232 TOTAL AREA CB4 63020 ---------- DB2 20400 DENSITY 1 = 0 EB2 7841 DENSITY 2 = 2294 FB3 11770 DENSITY 3 = 12180 GB3 47240 DENSITY 4 = 0 HB3 25460 IB4 96840 TOTAL 14474 JB4 515900 KB2 15450 KENT ISLAND MD. LB3 64520 VIMS CHART 032 MB3 10250 NB3 3668 AA2 58370 OB3 21970 BA4 107200 PB2 228900 CA3 45320 QB3 24900 DA2 69350 RB4 71820 EA4 139400 SB4- 14270 FA3 118500 TB3 13470 IA4 153800 UB2 1654 JA3 57540 VB3 2987 KA2 56800 WB3 20340 LA2 51770 223 KENT ISLAND MD. (continued) QUEENSTOWN MD. VIMS CHART 032 VIMS CHART 033 MA3 112000 AA3 14470 NA2 253800 BA2 14880 OA3 95160 CA3 14610 PA3 308900 DA3 2545 QA3 24040 EA3 4290 RA3 58950 FA2 4231 SA2 3778 GA3 7229 TA2 3066 HA2 10560 UA2 2085 IA2 1781 VA2 5969 JAI 35730 WA2 5767 KA4 76000 XA1 8089 LAI 42480 YAl 5877 MA2 3716 ZA2 2842 NA3 72450 AB3 11780 OA3 371900 BB1 34910 PAI 182200 CB3 122600 QA3 119700 DB1 159200 RA4 146000 EBI 10920 SA2 78880 FB2 8295 TAI 69560 GB3 43370 UA3 296900 HB1 12280 VAl 154700 IB1 23480 WA4 121100 JB4 372100 YA2 3920 KB2 55870 XA2 5665 LB4 16660 ZA4 184800 MB3 22270 AB2 9462 GA4 526400 BB2 11980 HA4 38840 CB3 25270 NB1 17690 DB2 8248 EB3 33840 TOTAL AREA FB3 20000 ---------- GB2 18330 DENSITY 1 = 272446 DENSITY 2 = 577762 TOTAL AREA DENSITY 3 = 1020430 ---------- DENSITY 4 = 1354400 DENSITY 1 = 484670 DENSITY 2 = 171653 TOTAL 3225038 DENSITY 3 = 983204 DENSITY 4 = 527900 TOTAL 2167427 224 ALEXANDRIA VA.-D-C.-MD. CLAIBORNE MD. (continued) VIMS CHART 034 VIMS CHART # 036 AA4 306400 NA2 20160 BA2 24670 OA2 187800 CA4 61170 PA4 19810 DA4 1779000 QA4 29680 EA2 37650 RA4 17180 FA4 42970 GA4 18100 TOTAL AREA HA4 4778 ---------- IA2 3285 DENSITY 1 = 312860 JA3 14430 DENSITY 2 = 452700 KA2 1864 DENSITY 3 = 136750 LA2 536.7 DENSITY 4 = 466644 MA4 3883 NA4 29890 TOTAL 1368954 OA2 3796 PA2 4206 ST. MICHAELS MD. QA4 7181 VIMS CHART 037 RA4 19590 SAl 14130 AA2 10120 TA4 1475000 BA3 9084 UA4 43150 CA3 68560 VA4 5149 DA1 63790 WA4 803900 EA3 482800 FA4 257400 TOTAL AREA GA3 36830 ---------- HA3 17270 DENSITY 1 = 14130 IA2 26280 DENSITY 2 = 80838 JA3 36720 DENSITY 3 = 14430 KA2 32390 DENSITY 4 = 4600161 LA2 53500 MA3 11420 TOTAL 4709559 NA4 52330 OA2 11220 CLAIBORNE MD. PA2 12740 VIMS CHART 036 QA4 362200 RA3 118000 AA4 11790 SAl 23660 BA4 50220 TA3 25100 CA2 137100 UAl 42110 DA1 70570 VA3 45550 EA3 125000 WAl 159800 FAl 222800 XA2 35720 GA4 330900 YA2 46830 HA4 7064 ZA2 85500 IA2 51590 AB2 14410 JA2 29020 BB3 17700 KA1 19490 CB2 8843 LA3 11750 MA2 27030 225 ST. MICHAELS MD. (continued) MT. VERNON VA.-MD. (continued) VIMS CHART 037 VIMS CHART 040 DB1 88190 MA4 1970000 EB3 59890 NA2 54160 OA4 2056000 TOTAL AREA PA2 63550 ---------- QA4 5832 DENSITY 1 377550 RA4 7215 DENSITY 2 337553 SA3 132300 DENSITY 3 928924 TAI 150500 DENSITY 4 671930 UA4 119200 VAl 21260 TOTAL 2315957 WA4 44100 XA4 35190 FORT BELVOIR VA.-MD. YA4 5527 VIMS CHART 039 ZA4 170800 AB2 19300 AA2 7035 BB4 456700 BA2 23470 CB3 216400 CA2 5712 DB4 55180 DA2 13770 IA4 4123000 EA3 29270 AA4 81760 FA2 35170 GA4 14620 TOTAL AREA JA4 3643 ---------- IA1 8516 DENSITY 1 = 291670 HA4 50040 DENSITY 2 = 227620 KA2 2264 DENSITY 3 = 348700 DENSITY 4 = 9699884 TOTAL AREA ---------- TOTAL 10567873 DENSITY 1 = 8516 DENSITY 2 = 87421 TILGHMAN MD. DENSITY 3 = 29270 VIMS CHART 043 DENSITY 4 = 68303 AA2 3485 TOTAL 193510 BA2 3605 CA3 14580 MT. VERNON VA.-MD. DA4 5441 VIMS CHART 040 EA2 5694 FA4 17020 BA4 73950 GA3 31800 CA4 76880 HAl 58330 DA4 23920 IA3 103700 EA4 36030 JA2 14240 FAl 99950 KA2 58610 GA4 254700 LA2 7867 HAl 19960 MA2 10640 JA2 66620 NA2 3670 KA4 103900 OA4 6492 LA2 23990 PA4 7263 226 TILGHMAN MD. (continued) QUANTICO VA.-MD. VIMS CHART 043 VIMS CHART 047 QA2 113000 AA4 63540 RA2 9702 BA2 50800 SA2 38270 CA3 33940 TA2 51220 DA2 32550 UA2 14680 EAl 84330 VA2 39710 FAl 17580 WA3 25590 GA2 11180 XA3 3553 HA4 33810 YA2 10650 IA1 45720 ZA2 29950 JA2 89230 AB4 165700 TOTAL AREA TOTAL AREA ---------- ---------- DENSITY 1 = 147630 DENSITY 1 = 58330 DENSITY 2 = 183760 DENSITY 2 = 414993 DENSITY 3 = 33940 DENSITY 3 = 179223 DENSITY 4 = 97350 DENSITY 4 = 201916 TOTAL 462680 TOTAL 854462 INDIAN HEAD MD.-VA. OXFORD MD. VIMS CHART 048 VIMS CHART 044 AA2 29610 AA3 2399 BA3 8079 BA3 12600 CA3 16640 CA3 14230 DA2 12050 DA3 .25910 EA3 3029 FA3 6634 TOTAL AREA GA2 6594 ---------- HA2 9099 DENSITY 1 = 0 IA1 7965 DENSITY 2 = 0 JA4 24640 DENSITY 3 = 55139 KA1 4860 DENSITY 4 = 0 LA4 39250 MA3 7452 TOTAL 55139 TOTAL AREA ---------- DENSITY 1 = 12825 DENSITY 2 = 57353 DENSITY 3 = 41834 DENSITY 4 = 63890 TOTAL 175902 227 BENEDICT MD. HUDSON MD. (continued) VIMS CHART # 049 VIMS CHART # 051 AA2 7567 BB4 157000 BA4 2071 CB2 125600 CA3 3017 DB4 188900 TOTAL AREA TOTAL AREA ---------- ---------- DENSITY 1 = 0 DENSITY 1 = 0 DENSITY 2 = 7567 DENSITY 2 = 310136 DENSITY 3 = 3017 DENSITY 3 = 542851 DENSITY 4 = 2071 DENSITY 4 = 824420 TOTAL 12655 TOTAL 1677407 HUDSON MD. CHURCH CREEK MD. VIMS CHART 051 VIMS CHART 052 AA3 23610 AA4 16820 BA2 12040 BA4 4355 CA2 11710 CA2 7567 DA3 9604 DA2 3927 EA3 9982 EA2 7621 FA3 7149 FA2 4605 GA3 6031 GA2 3731 HA3 10810 HA3 13930 IA3 7779 IA1 282000 JA3 28400 JA4 9089 KA4 56360 KA3 130400 LA2 5157 LA3 10540 MA2 1689 NA2 17980 TOTAL AREA OA2 16730 ---------- PA4 18060 DENSITY 1 = 282000 QA2 13530 DENSITY 2 = 27451 RA4 293700 DENSITY 3 = 154870 SA2 82190 DENSITY 4 = 30264 TA4 110400 UA3 8847 TOTAL 494585 VA3 46710 WA3 333700 XA3 7949 YA3 18730 ZA2 23510 AB3 23550 228 WIDEWATER VA.-MD. NANJEMOY MD. (Continued) VIMS CHART 055 VIMS CHART # 056 AA4 50040 BB4 10820 BA2 72630 CB4 6675 CAl 8089 DB4 6390 DA4 45250 EB4 4548 EA2 13500 FB4 4529 FA2 9794 GA3 72390 TOTAL AREA HA4 112900 ---------- IA2 7070 DENSITY 1 = 0 DENSITY 2 = 50230 TOTAL AREA DENSITY 3 = 71970 ---------- DENSITY 4 = 962309 DENSITY 1 8089 DENSITY 2 102994 TOTAL 1084509 DENSITY 3 72390 DPN9ITY 4 209190 MATHIAS FOINT MD9-VA, VIMS CHART OS7 TOTAL 391663 AA2 7556 NANJEMOY MD. BAl 62460 VIMS CHART 056 CA3 108300 DA3 36530 AA4 246600 EA4 10080 BA3 22910 FAl 11110 CA4 32180 GA3 12630 DA4 4839 HA3 8405 EA4 14810 IA2 1696 FA4 146100 JA2 1899 GA4 12800 KA2 2357 HA4 33870 LA4 10560 IA4 305900 MA4 28020 JA2 50230 NA3 1740 KA3 11350 OA4 123200 LA4 4887 PA3 92720 MA4 16880 QA4 71040 NA4 12280 RA4 9783 OA3 37710 SA4 5527 PA4 22210 TA4 94230 QA4 24930 UA4 3113 RA4 8416 VA4 7601 SA4 2658 WA4 4184 TA4 11080 XA4 2765 UA4 2287 YA4 16540 VA4 2393 ZA4 7460 WA4 1827 AB1 4210 XA4 3178 BB2 41960 YA4 7112 CB2 89950 ZA4 8476 DB4 886300 AB4 3634 EB1 22490 229 MATHIAS POINT MD.-VA. BROOMES ISLAND MD. VIMS CHART 057 (Continued) VIMS CHART 060 FB4 289700 AA2 1831 GB4 36160 BA3 50160 HB3 10660 CA2 6880 IB4 99140 DA2 8444 JB2 11790 EA2 11860 KB4 84580 FA2 2492 LB4 346100 GA2 83000 MB4 13100 HA2 31680 NB4 1624 IA3 1084 OB4 1595 JA3 4609 PB2 1327 QB3 19360 TOTAL AREA RB4 86260 ---------- SB2 44070 DENSITY 1 = 0 TB4 3279 DENSITY 2 = 146187 UB4 3573 DENSITY 3 = 55853 VB4 636 DENSITY 4 = 0 WB4 2459 TOTAL 202040 TOTAL AREA ---------- COVE POINT MD. DENSITY 1 = 100270 VIMS CHART 061 DENSITY 2 = 202605 DENSITY 3 = 290345 AA3 5931 DENSITY 4 = 2248609 BA3 2061 CA2 31230 TOTAL 2841829 DA4 6984 MECHANICSVILLE MD. TOTAL-AREA VIMS CHART 059 ---------- DENSITY 1 = 0 AA2 20780 DENSITY 2 = 31230 DENSITY 3 = 7992 TOTAL AREA DENSITY 4 = 6984 ---------- DENSITY 1 0 TOTAL 46206 DENSITY 2 20780 DENSITY 3 0 DENSITY 4 0 TOTAL 20780 230 TAYLORS ISLAND MD. KING GEORGE VA.-MD. VIMS CHART # 062 VIMS CHART 065 AA2 28 75 GA4 106200 BA2 1848 FA2 18670 CA3 6207 EA2 4642 DA4 32020 DA3 16170 EA2 4363 CA2 9144 FA2 29300 BA2 2433 GA3 10440 AA1 3694 HA3 326000 IA1 61650 TOTAL AREA ---------- TOTAL AREA DENSITY 1 3694 ---------- DENSITY 2 34889 DENSITY 1 = 61650 DENSITY 3 16170 DENSITY 2 = 38386 DENSITY 4 106200 DENSITY 3 = 342647 DENSITY 4 = 32020 TOTAL 160953 TOTAL 474703 DAHLGREN VA.-MD. VIMS CHART # 066 GOLDEN HILL MD. VIMS CHART 063 AA1 11390 BA4 5929 AA2 7431 CA4 4181 BA3 995 DA4 44050 CA2 1628 EA4 66020 DA3 15260 FA2 11310 TOTAL AREA TOTAL- AREA ---------- ---------- DENSITY 1 = 0 DENSITY 1 = 11390 DENSITY 2 = 9059 DENSITY 2 = 11310 DENSITY 3 = 16255 DENSITY 3 = 0 DENSITY 4 = 0 DENSITY 4 = 120180 TOTAL 25314 TOTAL 142880 231 COLONIAL BEACH NORTH, VA.-MD. SOLOMONS ISLAND MD. VIMS CHART 067 VIMS CHART 071 AA3 15230 AA3 83330 BA4 3312 CA3 11760 TOTAL AREA DA4 3607 ---------- EA3 12400 DENSITY 1 0 FA3 15280 DENSITY 2 0 GA3 30840 DENSITY 3 83330 HA4 9738 DENSITY 4 0 IA2 29920 JA3 43870 TOTAL 83330 KA2 1904 BARREN ISLAND MD. TOTAL AREA VIMS CHART 072 ---------- DENSITY 1 = 0 AA3 7143 DENSITY 2 = 31824 BAl 59030 DENSITY 3 = 129380 CA4 82410 DENSITY 4 = 16657 DA3 2781 EAl 12640 TOTAL 177861 FA4 8295 GAl 8361 HOLLYWOOD MD. HA4 268700 VIMS CHART # 070 IA1 32010 JA4 42930 AA3 22230 KA1 44180 BA2 11330 MA2 69600 CA4 8696 NAl 137900 DA2 7484 OA3 18160 IA4 1904000 TOTAL AREA ---------- TOTAL AREA DENSITY 1 = 0 ---------- DENSITY 2 = 18814 DENSITY 1 = 294121 DENSITY 3 = 22230 DENSITY 2 = 69600 DENSITY 4 = 8696 DENSITY 3 = 28084 DENSITY 4 = 2306335 TOTAL 49740 TOTAL 2698140 232 HONGA MD. HONGA MD. (continued) VIMS CHART 073 VIMS CHART 073 AA1 29830 XB3 120200 BA4 177100 YB3 7575 CAl 92820 ZB3 137100 DA4 15630 AC3 17980 EA4 130500 BC3 12790 FA4 15950 GC3 14660 GAl 106600 HC4 21600 HA3 354000 IC2 14680 IA1 498400 JC3 89070 JA4 417200 KC3 9429 KA2 326500 LC1 43190 LA2 8984 MC4 42090 MA4 8906 NC2 37670 NA4 18880 OC4 35080 OAl 35930 PC2 1840 PA4 14600 QC4 3660 QA1 50800 Ccl 74190 RA3 85340 DC2 5851 SA3 10460 EC2 36610 TA3 34880 FC2 4339 UA4 53490 VA2 9426 TOTAL AREA WAl 539400 ---------- XA3 113000 DENSITY 1 = 1713890 YA3 98080 DENSITY 2 = 1096969 ZA2 68690 DENSITY 3 = 1356291 AB2 18790 DENSITY 4 = 2153286 BB2 6389 CB3 2363 TOTAL 6320436 DB2 4280 EB3 23790 WINGATE MD. FB3 5152 VIMS CHART 074 GB2 25910 HB3 7672 AA4 251800 IB2 -14680 BA3 3381 JB2 254300 CA3 4384 KB4 207400 DA4 332800 LB1 108000 EA2 34260 MB4 547200 FA2 27860 NB2 216300 GA4 123900 OB3 11550 HA3 66220 PB2 27460 IA1 39600 QB3 1.66300 JA3 108600 RB1 .65780 KA3 11090 SB3 34900 LA3 2688 TB4 170600 MA2 12680 UB4 273400 NA4 384300 VB2 14270 OAl 6162 WB1 68950 PA3 69580 233 WINGATE MD. RICHLAND POINT MD. VIMS CHART 074 VIMS CHART # 082 QA2 105400 AA1 5982 RA4 5403 BA3 310900 SAl 51490 CA3 39910 TA3 72630 DA2 27270 UA2 5477 EA4 40520 TOTAL AREA TOTAL AREA ---------- ---------- DENSITY 1 = 97252 DENSITY 1 = 5982 DENSITY 2 = 185677 DENSITY 2 = 27270 DENSITY 3 = 338573 DENSITY 3 = 350810 DENSITY 4 = 1098203 DENSITY 4 = 40520 TOTAL 1719705 TOTAL 424582 ST. MARY'S CITY MD. BLOODSWORTH ISLAND MD. VIMS CHART 080 VIMS CHART 083 AA3 23410 AA2 8513 BA2 2497 BA3 15190 CA2 7834 CA4 23440 DA3 8050 DA3 20300 EAl 4472 EA2 12220 FA4 19260 FA4 358200 GA3 34030 GAl 6013 HA3 5281 HA4 120800 IA1 35130 TOTAL AREA JA4 2492000 ---------- KA2 64730 DENSITY 1 4472 LA4 69290 DENSITY 2 10331 MA2 10740 DENSITY 3 70771 NA4 11820 DENSITY 4 19260 OAl 12820 PA4 270200 TOTAL 104834 QA4 185000 RA2 15720 8A4 311000 TA4 67890 VA4 54490 WA4 2428 XA4 96330 YAl 97350 ZA4 338300 AB4 59850 BB4 14920 CB3 25000 DB3 159100 EB4 24730 FB4 53660 234 BLOODSWORTH ISLAND MD. -MONIE MD. VIMS CHART 083 (continupd) VIMS CHART 085 GB4 26310 AA3 8057 H134 165500 BA2 6367 IB1 73810 CA3 13920 JB3 36950 DA3 7543 KB4 201600 EA3 21040 LB3 5107 FA2 4008 UA4 11110 GA2 4571 HA2 4457 TOTAL AREA IA3 176000 ---------- DENSITY 1 = 225123 TOTAL AREA DENSITY 2 = 111923 ---------- DENSITY 3 = 261647 DENSITY 1 = 0 DENSITY 4 = 4958868 DENSITY 2 = 19403 DENSITY 3 = 226560 TOTAL 5567561 DENSITY 4 = 0 DEAL ISLAND MD. TOTAL 245963 VIMS CHART 084 ST. GEORGE ISLAND MD.-VA. AA3 2985QO VIMS CHART # 089 BA2 11820 CA4 43740 AA2 37050 DA3 10950 BA2 19430 EAl 22310 CA3 837 FAl 20630 GA3 22060 TOTALAREA HA3 32950 ---------- IA3 86460 DENSITY 1 = 0 JA2 19700 DENSITY 2 = 56480 KA4 12760 DENSITY 3 = 837 LA3 3324 DENSITY 4 = 0 MA3 17160 TOTAL 57317 TOTAL AREA ---------- KEDGE$ STRAITS MD. DENSITY 1 = 42940 VIMS CHART 091 DENSITY 2 = 31520 DENSITY 3 = 471404 AA1 47580 DENSITY 4 = 56500 BA3 94990 CA4 44710 602364 DA4 2870000 TOTAL EA2 72590 FA4 214200 GA3 1272000 HA4 412600 IA4 8636 JA4 13710 KA4 15440 235 KEDGES STRAITS MD. (continued) MARION MD. (continued) VIMS CHART 091 VIMS CHART 093 IA4 265300 HA3 51650 MA3 433900 IA2 78210 NA3 228600 JA3 28570 OA4 12230 KA2 2167 PA4 16470 LA4 1905 QA4 86530 MA4 8495 RA4 421800 NA3 20810 SA4 12200 OA2 1291 TA4 50240 PA3 7144 UA4 169900 QA3 7356 VA4 87710 RA3 19040 WAl 82350 SA3 1806 TA3 21130 TOTAL AREA UA3 63500 ---------- VA3 8383 DENSITY 1 = 129930 WA2 28480 DENSITY 2 = 72590 XA2 29400 DENSITY 3 = 2029490 YA3 43390 DENSITY 4 = 4701676 ZA3 25040 AB3 32760 TOTAL 6933686 BB3 32770 CB3 292400 TERRAPIN SAND POINT MD. DB2 22150 VIMS CHART # 092 EB4 65250 FB2 34650 AA4 816200 GB2 197100 BA4 57580 HB3 8203 CA4 11900 IB3 58840 DA3 46960 JB4 54830 KB3 16440 TOTAL AREA LB3 51770 ---------- MB3 74310 DENSITY 1 = 0 NB2 9586 DENSITY 2 = 0 OB3 4773 DENSITY 3 = 46960 PB3 1634 DENSITY 4 = 885680 QB3 6194 RB3 1483 TOTAL 932640 SB3 25880 MARION MD. TOTAL AREA VIMS CHART 093 ---------- DENSITY 1 = 0 AA4- 5146 DENSITY 2 = 433104 BA3 21570 DENSITY 3 = 1022726 CA3 24880 DENSITY 4 = 145572 DA2 30070 EA3 44220 TOTAL 1601402 FA3 26780 GA4 9946 236 EWELL MD.-VA. GREAT FOX ISLAND MD.-VA. VIMS CHART 099 VIMS CHART # 100 (continued) AA4 15520000 EA4 58740 BA3 275300 DA4 214700 CA2 523700 DA3 117300 TOTAL AREA EA2 86730 ---------- P FA3 241600 DENSITY I = 121540 GA2 73500 DENSITY 2 = 2030100 HA4 322300 DENSITY 3 = 132000 IA4 18870 DENSITY 4 = 8615874 JA4 932200 KA4 91690 TOTAL 10899514 LA3 93040 MA2 20020 CRISFIELD MD.-VA. NA3 18480 VIMS CHART 101 OA3 20720 PA4 517800 AA4 167200 QA3 489500 BA2 179600 RAI @092 CA3 24270 SA4 757500 DA3 80710 EA2 18310 TOTAL AREA FA4 32830 ---------- GA2- 32470 DENSITY 1 = 9092 VA3 25110 DENSITY 2 = 703950 UA4 92920 DENSITY 3 = 1255940 TA3 72820 DENSITY 4 = 18160356 SA3 20790 RA4 10400 TOTAL 20129335 HA3 41530 IA4 72690 GREAT FOX ISLAND MD.-VA. JA4 27880 VIMS CHART 100 KA4 147900 LA3 45290 AA4 4212000 MA4 18340 BA2 1029000 NA4 25500 CA2 183000 OA4 17840 PA4 1499000 PA4 57950 QA2 611600 QA4 19900 OA4 250700 NAl 27740 TOTAL AREA MA4 9635 ---------- GA4 178300 DENSITY 1 = 0 HA4 124600 DENSITY 2 = 230380 IA2 206500 DENSITY 3 = 310520 JA4 1516000 DENSITY 4 = 691350 KAI 93800 LA4 TOTAL 1232250 FA3 132000 237 REEDVILLE VA. CHESCONESSEX VA. VIMS CHART # 106 VIMS CHART 108 AA2 19020 AA1 15180 BA2 223500 BAI 23560 CA3 13230 CA3 10260 DA2 19660 DA3 141700 EM 26010 EM 14570 FA2 125800 FA4 13020 GA4 393700 GA4 87300 HA3 40010 HAI 16180 IA2 18930 IM 228600 JA4 7645 TOTAL AREA LA3 130900 ---------- MA3 123700 DENSITY 1 = 0 NA4 405800 DENSITY 2 = 406910 OA4 389000 DENSITY 3 = 53240 PAl 34030 DENSITY 4 = 419710 QA4 328500 RA2 121500 TOTAL 879860 SAl 53230 TA3 460200 TANGIER ISLAND VA. UAI 213100 VIMS CHART 107 VA4 359500 WA2 323000 AA2 215100 XA3 438700 BA3 242200 YA2 271800 CA2 164300 ZAI 75090 DA4 383500 A83 39250 EA2 197000 BB3 423300 FA3 70140 CB1 224000 GA2 114200 D$2 74040 HAI 84570 EB2 217500 IA2 72580 FB4 441200 JA4 2745000 GB4 136800 KA2 702900 HB3 9972 IB2 87720 TOTAL AREA JB4 147600 ---------- K132 23180 DENSITY 1 = 84570 LB3 141400 DENSITY 2 = 1466080 MB3 2033000 DENSITY 3 = 312340 KA2 571200 DENSITY 4 = 3128500 NB4 260800 TOTAL 4991490 TOTAL AREA ---------- DENSITY 1 = 654370 DENSITY 2 = 1689940 DENSITY 3 = 3952382 DENSITY 4 = 2820335 TOTAL 9117026 238 PARKSLEY VA. IRVINGTON VA. VIMS CHART 109 VIMS CHART 111 AM 270400 AM 38380 BA2 17420 BA2 12580 CA2 6127 CA2 47900 DA3 1741000 DA4 98210 EM 14320 EM 17090 FA3 90810 FAl 16580 GA3 75780 GA3 221200 HA3 11880 HA3 7241 IM 4892 IM 3778 JA4 37840 JA3 32780 KA3 22870 KA2 2616 LA3 37510 LA3 53570 MA3 27190 MA3 7818 NA3 2302 TOTAL AREA OM 16400 ---------- PA4 12930 DENSITY 1 = 0 QA3 28190 DENSITY 2 = 23547 RA2 4274 DENSITY 3 = 2291760 SM 21700 DENSITY 4 = 42732 TA2 3957 UA3 4788 TOTAL 2358039 VA3 294600 WAl 24570 URBANNA VA. VIMS CHART 110 TOTAL AREA ---------- AA1 127000 DENSITY 1 = 41150 BA2 66210 DENSITY 2 = 71327 CAl 5618 DENSITY 3 = 694647 DA1 6293 DENSITY 4 = 166330 EA2 105300 FA3 2174 TOTAL 973454 GA2 11570 HAl 7556 FLEETS BAY VA. IA2 29860 VIMS CHART 112 TOTAL AREA AA1 165100 ---------- BAl 173700 DENSITY 1 = 146467 CA3 21110 DENSITY 2 = 212940 DA3 37070 DENSITY 3 = 2174 EA4 20060 DENSITY 4 = 0 FAl 518200 GA2 6129 TOTAL 361581 HA2 202600 IA2 8748 JA2 20090 KA3 18180 LA3 7740 MA3 32560 239 FLEETS BAY VA. (continued) PUNGOTEAGUE VA. VIMS CHART 112 VIMS CHART 114 NA2 20260 AM 57210 OA2 41510 BA4 14830 PA3 7212 CA4 1857 QA2 526600 DA3 107000 RA2 51500 EA4 20510 SA2 24300 FA2 25690 TA3 39560 GA3 203600 UA2 20160 HA4 992900 VA3 16660 IAl 157200 WA2 86850 JA3 748500 XA2 166800 KAl 2095000 YA2 31920 LA3 1225000 ZA2 26050 MA3 16090 AB2 31910 NA2 50390 BB2 25650 OAl 34030 CB1 8443 PA3 212200 TOTAL AREA QA2 78320 ---------- RA2 16050 DENSITY 1 = 865443 SA2 10320 DENSITY 2 = 1291077 TAl 72590 DENSITY 3 = 180092 UA4 18160 DENSITY 4 = 20060 VA2 12140 WA3 14470 TOTAL 2356672 XA3 72910 YA4 55920 NANDUA CREEK VA. ZA4 60370 VIMS CHART 113 AB2 157000 BB1 316100 AA3 41240 CB4 49880 BAl 14000 DB3 44780 CA4 94330 EB3 12270 DA4 163600 FB3 14050 EM 133800 FA2 1181000 TOTAL AREA GA3 145200 ---------- HA3 72170 DENSITY 1 = 2674920 IAl 87480 DENSITY 2 = 349910 JA3 23730 DENSITY 3 = 2728080 KA3 242500 DENSITY 4 = 1214427 LA1 1588000 TOTAL 6967337 TOTAL AREA ---------- DENSITY I = 1689480 DENSITY 2 = 1181000 DENSITY 3 = 658640 DENSITY 4 = 257930 TOTAL 3787050 240 WILTON VA. JAMESVILLE VA. VIMS CHART 117 VIMS CHART 119 AA2 10810 AA2 23510 BA2 3146 BA2 30730 CA2 6939 CA2 486300 DA2 3457 DA4 498000 EM 5531 EAl 104700 FA2 3756 FA4 159400 GA2 4502 GA3 10550 HA2 4474 HA2 73000 IA2 3538 IM 9270 JA2 19110 JA2 41830 KA1 11490 KA4 18020 LA1 55730 LA2 913000 MA3 99760 MA4 190300 NA2 32660 NA2 18570 OA2 2588 OA2 663700 PAl 41150 TOTAL AREA QA3 23350 ---------- RA3 15460 DENSITY 1 = 67220 SM 16610 DENSITY 2 = 94980 TA3 55100 DENSITY 3 = 105291 UA3 145200 DENSITY 4 = 0 VA4 164800 WAl 35860 TOTAL 267491 XA3 237600 YA4 140300 DELTAVILLE VA. ZA2 12330 VIMS CHART 118 AB2 66670 AA2 13780 TOTAL AREA BA4 34270 ---------- CA2 5336 DENSITY 1 = 181710 DA1 41590 DENSITY 2 = 2329640 EAl 10000 DENSITY 3 = 513140 FA2 8878 DENSITY 4 = 1170820 GA4 4893 HA2 20960 TOTAL 4195310 IA2 3759 JA1 13130 WARE NECK VA. KA2 5265 VIMS CHART 122 LA1 26960 AM 8409 TOTAL AREA BA2 32490 ---------- CA2 9489 DENSITY 1 = 91680 DA2 261500 DENSITY 2 = 57978 EAll 7684 DENSITY 3 = 0 FA3 5269 DENSITY 4 = 39163 GA3 26920 HA4 90940 TOTAL 188821 IM 43780 241 WARE NECK VA. (continued) MATHEWS VA. (continued) VIMS CHART 122 VIMS CHART 123 JA2 20240 QA2 62200 KA3 138500 RA4 79400 LA1 125900 SAl 23620 MA2 87160 NA3 12170 TOTAL AREA OA3 32690 ---------- PA2 4274 DENSITY 1 = 114050 QA2 661100 DENSITY 2 = 101391 RA3 216200 DENSITY 3 = 123790 SA3 57560 DENSITY 4 = 241612 TA2 100900 TOTAL 580843 TOTAL AREA ---------- FRANKTOWN VA. DENSITY .1 = 133584 VIMS CHART 124 DENSITY 2 = 1177153 DENSITY 3 = 497718 AA2 30560 DENSITY 4 = 134720 BA4 100700 CA2 56350 TOTAL 1943175 DA2 8570 EA3 15800 MATHEWS VA. FA3 761100 VIMS CHART 123 GAl 41970 HAl 59660 AA4 15490 IA4 19560 BA4 14550 JA3 57470 CA4 13430 KA4 105900 DA1 25380 IA3 265600 EAl 22820 MA3 126600 FA4 47150 NA4 1421000 GAl 42230 OA2 175600 HA4 67840 PAl 58810 IA4 3752 QA2 23890 JA2 32500 RA3 42460 KA3 21340 SA2 11690 LA3 10590 TA2 172900 MA3 28070 UA3 94880 NA3 20320 VA3 15630 OA2 6691 WA3 59000 PA3 43470 XA3 36500 YA3 8694 242 FRANKTOWN VA. (Continued) ACHILLES VA. (continued) VIMS CHART # 124 VIMS CHART 131 ZA3 64040 FB3 194400 AB3 23610 GB3 28350 BB4 5268 HB4 8458 CB4 53940 IB3 155500 DB1 9253 JB4 233500 KB3 226800 TOTAL AREA LB1 252500 ---------- MB3 238800 DENSITY 1 = 169693 NB4 252100 DENSITY 2 = 479560 OB3 23330 DENSITY 3 = 1571384 PB3 40490 DENSITY 4 = 1706368 QB1 57660 RB4 223300 TOTAL 3927005 SB2 88420 TB4 118800 ACHILLES VA. UB2 53490 VIMS CHART 131 VB4 8850 WB3 24090 AA3 21060 XB2 40300 BA4 34200 YB1 76250 CA4 35200 ZB3 664200 DA2 56520 EA4 706800 TOTAL AREA FA2 166400 ---------- GA4 206900 DENSITY 1 = 689710 HA4 3"6290 DENSITY 2 = 1936180 IA4 142400 DENSITY 3 = 1617020 JA2 42380 DENSITY 4 = 3311157 KA4 264500 LA2 547800 TOTAL 7554067 MA4 33370 NA4 109400 NEW POINT COMFORT VA. OA2 17400 VIMS CHART 132 PA4 40900 QA4 79740 AA2 1113000 RA2 594800 BAl 286800 SA4 18130 CA4 1263000 TA4 41500 DA2 536100 UA4 8099 EA4 1437000 VA4 235700 FAl 94570 WA4 .121200 GA4 48840 XA1 303300 HA2 387400 YA2 .298100 IA4 88640 ZA4 223000 JA4 21010 AB2 30570 KA3 142600 BB4 48910 LA4 111800 CB4 16700 MA2 581600 DB4 42690 NA3 257300 EB4 20520 OAl 80100 243 NEW POINT COMFORT VA. CHERITON VA. VIMS CHART 132 VIMS CHART # 134 PA3 35760 AA1 116900 QA3 218200 BA4 309800 RA2 435600 CA2 92850 SA4 622000 DA4 215500 TA2 325200 UA4 17930 TOTAL AREA VA2 452000 ---------- WA4 345100 DENSITY 1 = 116900 XA3 413300 DENSITY 2 = 92850 YA4 21800 DENSITY 3 = 0 ZA3 13810 DENSITY 4 = 525300 AB4 584200 BB1 54340 TOTAL 735050 CB1 442000 DB3 57860 YORKTOWN VA. VIMS CHART # 139 TOTAL AREA ---------- AA2 3639 DENSITY 1 = 957810 BA3 6137 DENSITY 2 = 3830900 DENSITY 3 = 1138830 TOTAL AREA DENSITY 4 = 4561320 ---------- DENSITY 1 = 0 TOTAL 10488859 DENSITY 2 = 3639 DENSITY 3 = 6137 CAPE CHARLES VA. DENSITY 4 = 0 VIMS CHART #133 TOTAL 9776 AA4 20030 BA2 209000 POQUOSON WEST VA. CA4 68140 VIMS CHART 140 DA4 636400 EA3 240200 AA4 3996 FA3 70650 BA4 1400 GA3 24930 CA3 104800 HA4 9813 DA1 222700 IA3 77320 EA4 395300 JA1 647000 FA3 24860 KA3 660700 GA3 62170 HA2 9127 TOTAL AREA IA3 12260 ---------- JA4 56500 DENSITY 1 = 647000 KA2 2694 DENSITY 2 = 209000 ILA4 78750 DENSITY 3 = 1073800 MAl 246200 DENSITY 4 = 734383 NAl 50580 OA2 346900 TOTAL 2664183 PA4 44620 QA3 20170 244 POQUOSON WEST VA. ELLIOTTS CREEK VA. VIMS CHART # 140 VIMS CHART # 142 RA3 41780 AA3 20550 SA2 349600 BAl 73750 TA4 365000 UA3 438900 TOTAL AREA VA3 13820 ---------- DENSITY 1 = 73750 TOTAL AREA DENSITY 2 = 0 ---------- DENSITY 3 = 20550 DENSITY 1 = 519480 DENSITY 4 = 0 DENSITY 2 = 708321 DENSITY 3 = 718760 TOTAL 94300 DENSITY 4 = 958766 TOWNSEND VA. TOTAL 2905327 VIMS CHART 143 POQUOSON EAST VA. AA3 6613 VIMS CHART 141 BA3 19620 CA3 58410 AA3 477400 DA3 35020 @BA2 32210 CAl 97650 TOTAL AREA DA4 507000 ---------- EA2 1291000 DENSITY 1 = 0 -FA4 4313000 DENSITY 2 = 0 GA3 721200 DENSITY 3 = 119663 HAl 38980 DENSITY 4 = 0 IM 28350 JA4 7066 TOTAL 119663 KA4 '5187 LA4 5117 TOTAL AREA ---------- DENSITY 1 = 136630 DENSITY 2 = 1323210 DENSITY 3 = 1226950 DENSITY 4 = 48.37370 TOTAL 7524160 245 HAMPTON VA. PORT TOBACCO MD. VIMS CHART 147 - VIMS CHART 161 AA4 107000 AA4 2726 BA4 134100 BA4 5650 CA4 32680 CA4 31810 DA4 459200 DA4 3574 EA4 102400 EA4 3753 FA4 526900 FA2 5557 GA3 13200 GA3 3311 HAl 86.680 IA3 164900 TOTAL AREA JA2 241700. ---------- KA4 593700 DENSITY 1 0 LA4 9008 DENSITY 2 5557 MA4- 368400 DENSITY 3 3311 DENSITY 4 47513 TOTAL AREA ---------- TOTAL 56381 DENSITY 1 = 86680 DENSITY 2 = 241700 BERLIN MD. DENSITY 3 = 178100 VIMS CHART 167 DENSITY 4 = 2333388 AA3 63960" TOTAL 2839868 BA4 6604 CAPE HENRY VA. TOTAL AREA VIMS CHART 152 ---------- DENSITY 1 0 AA2 15800 DENSITY 2 0 BA2 153400 DENSITY 3 63960 CA2 58530 DENSITY 4 6604 DA3 106500 EA3 52370 TOTAL 70564 FA3 18440 OCEAN CITY MD. TOTAL AREA VIMS CHART # 168 ---------- DENSITY 1 0 AA3 80540 DENSITY 2 227730 BA4 3611 DENSITY 3 177310 DENSITY 4 0 TOTAL AREA ---------- TOTAL 405040 DENSITY 1 = 0 DENSITY 2 = 0 DENSITY 3 = 80540 DENSITY 4 = 3611 TOTAL 84151 246 TINGLES ISLAND MD. WHITTINGTON POINT MD.-VA. VIMS CHART 170 VIMS CHART 173 AA3 882100P AA4 341300 BA4 253200 BA4 16480 CA4 37930 CA4 1519000 DA3 287500 DA3 97730 EA3 506300 EA4 93830 FA4 164500 FA4 10680 GA4 35940 HA4 99630 TOTAL AREA ---------- TOTAL AREA DENSITY 1 = 0 ---------- DENSITY 2 = 0 DENSITY 0 DENSITY 3 = 97730 DENSITY 2 = 0 DENSITY 4 = 1981290 DENSITY 3 = 9614800 DENSITY 4 = 591200 TOTAL 2079020 TOTAL 10205999 CHINCOTEAGUE EAST VA. VIMS CHART 175 BOXIRON MD.-VA. VIMS CHART 172 AA3 4010000 AA3 3208000 TOTAL AREA BA4 93440 ---------- CA3 1410000 DENSITY 1 0 DA4 60550 DENSITY 2 0 EA3 577600 DENSITY 3 4010000 FA3 45390 DENSITY 4 0 GA4 1008000 HA4 246400 TOTAL 4010000 TOTAL AREA ---------- DENSITY 1 0 DENSITY 2 0 DENSITY 3 5240990 DENSITY 4 1408390 TOTAL 6049380 247 DATE DUE GAYLORDINo. 2333 PRINTED IN U S & 3 668 14 07 8156