[From the U.S. Government Printing Office, www.gpo.gov]

                                                           COOT-AC-T













                           1990 ALGAL BLOOM REPORTS


                                   APRIL 1991






                    NORTH CAROLINA DEPARTMENT OF ENVIRONMENT,
                          HEALTH AND NATURAL RESOURCES
                      DIVISION OF ENVIRONMENTAL MANAGEMENT
                              WATER QUALITY SECTION


















                                                        All
                                                    'prow




                    17










      QK
      568
      .B55
      N8
      1991















                                1990 ALGAL BLOOM REPORT
                                        APRIL 1991

























                   NORTH CAROLINA DEPARTMENT OF ENVIRONMENT, HEALTH
                                  AND NATURAL RESOURCES
                          DIVISION OF ENVIRONMENTAL MANAGE
                                   WATER QUALITY SECTION



                  This report has been approved for release
                                                    Ken Eagfeson
                                                   Assistant Water Quality Section Chief
                                              Date  S1341





                                    US DeDartment of commerce
                                    NOAA coastal Services center Library
                                    2234 South Hobson Avenue
         CD                         Charleston,. SC 29405-2413








                                                           Table of Contents



                      Introduction     ...................................................................................................................1
                      Cape Fear River Basin              ................................................................................................9
                      Catawba River Basin         ................................................................................................... is
                      Chowan River Basin              .................................................................................................... 24
                      Little Tennessee River               B asin   ................................................................................... 3 1
                      Lumber River Basin         ...................................*... -* ...-.*'***'*"**'**""**'**"**"****"****'***  ........ 33
                      Neuse River Basin        ........................................................................................................ 36
                      Pasquotank River Basin                 ............................................................................................ 49
                      Roanoke River Basin         ................................................................................................... 52
                      Tar-Pamlico River Basin                ........................................................................................... 54
                      White Oak River Basin           ............................................................................................... 65
                      Yadkin-Pee Dee River Basin            .............  ....................................................................... 67
                      Summary      ......................................................................................................................... 70
                      References        ...................................................................................................................... 73







                                                            Figures and Table

                      Figure 1. Algal Blooms in North Carolina, 1990                              ............................................3
                      Figure 2. Algal Bloom Locations on the Lower Neuse River, 1990                                          .......4
                      Figure 3. Algal Bloom Locations on the Lower Pamlico River, 1990...5

                      Table 1. Bloom Summary for 1990                          ....................................................................6







                      Appendix 1.            Algal Bloom Report Form                  ........................................................... 74
                      Appendix 2. Algal Blooms 1984-1990                              ..........................I................................. 75
                      Appendix 3. Descriptions of Several Algal Classes                                 .................................... 93








                                  NTRODUMON


                  The water quality algal bloom program was initiated in 1984
             to document suspected algal blooms with actual biovolume and
             density estimates, provide water quality data on surface waters not
             included in the ambient network, aid in fish kill investigations, and
             detect problem dischargers or other sources of nutrient enrichment
             in surface waters. Although information collected and analyzed is
             limited in scope, it can often be useful in documenting the effect of
             excessive nutrients.
                  Reported algal blooms have been increasing yearly from 16 in
             1984 to 87 in 1989. During 1990 approximately 78 reports of algal
             blooms were received with algal counts conducted on 134 samples.
             Since 1984, bloom reports have come from all seven regional offices
             with blooms occurring predominately. in the coastal plain and
             piedmont regions from ponds, creeks, rivers and estuaries. Figure I
             illustrates the location of all documented algal blooms in North
             Carolina during 1990. The Neuse and Pamlico River algal, blooms are
             depicted more precisely in Figures 2 and 3 since the majority of algal
             samples were collected from this area.
                  Information obtained from the algal bloom program functions
             as a useful aid in resource management. Algal bloom data are
             derived primarily from regional personnel. C.ontinued cooperation
             by regional staff has added to compilation of bloom data, although
             additional coverage and documentation in some problem areas are
             greatly needed. This information is necessary to assess water quality
             conditions and to determine those waterbodies potentially requiring
             nutrient controls.
                  Phytoplankton populations are dependent upon nutrient
             availability and other ecological factors as light, temperature,
             salinity, organic matter, grazing and currents. Maximum algal
             growth occurs w-ith an optimum of these conditions. Accelerated
             eutrophication often stems from anthropogenic sources, When
             abundant nutrients are introduced into a system, algal growth is
             accelerated, resulting in algal blooms, causing degredation of water
             quality, creating taste and- odor problems and fouling recreational
             areas. In addition, some species of dinoflagellates or blue-green
             algae may be toxic. Dominance by large numbers of nuisance blue-
             green algae can cause discolored or foul smelling water, often
             interrupting the food chain by displacing more desirable types of
             algae. At night, respiration of large numbers of algae results in
             oxygen deficient waters, creating a stressful environment for aquatic
             organisms. Furthermore, when large populations of algae die off,







              bacterial decomposition and respiration often deplete the water of
              oxygen sometimes resulting in fish kills.
                    Frequently algal blooms occur without visible signs. Using
              metered data, these blooms can be detected by high pH and
              dissolved oxygen in the photic zone. During the day, oxygen is
              produced by photosynthetic algae resulting in high daytime
              dissolved oxygen levels.  Conversely, at night, during algal
              respiration, oxygen is consumed resulting in low photic zone
              dissolved oxygen levels. Elevated pH in the photic zone is aresult of
              a shift in the carbonate cycle during photosynthesis.
                    The algal bloom reporting procedure entails collection of
              phytoplankton, nutrients, chlorophyll, physical/chemical data and a
              completed 'Algal Bloom Report Form' (Appendix 1) along with a map
              marking the bloom location.
                    The 1990 Algal Bloom Report contains a summary of each
              bloom report arranged by river basin, along with phytoplankton
              information.  Bloom discussions include dominant species when
              relevant, algal biovolume and density estimates and possible reasons
              for the bloom's occurrence. Following each bloom summary, an
              assessment was made as to whether or not actual bloom conditions
              existed, based on biovolume, density and chlorophyll-a
              concentrations. Usually, -an algal sample with a biovolume larger
              than 5,000 mm3/m3, density greater than 10,000 units/ml or
              chlorophyll-a concentration approaching 40 ug/I (the North Carolina
              state standard) constitutes a bloom.
                    Table 1 contains nutrient, chemical, physical and
              phytoplankton data.  Appendix 2 includes an overview of all bloom
              reports received since 1984, along with pertinent algal bloom data
              including phytoplankton biovolume and density estimates,
              chlorophyll-a concentrations and type of bloom. We can also provide
              further information on algal blooms and exact locations if requested
              at (919) 733-6946.   Appendix 3 summarizes several algal classes
              which are frequently mentioned in the report.
                    As the Division of Environmental Management moves to
              managing water quality problems from a basinwide approach,
              information from algal bloom reports will be furnished in whole
              basin reports rather than in end of the year algal summary reports.
              Memorandums concerning algal blooms will continue to be furnished
              to the individual data collecters when requested.






                                                2























    z


                     F I GURE 1. ALGAL BLOOMS I N NORTH CAROL I NA, 1990






                                       0 & 00
                                0             0 %    * 0
             0                   0             %*     0
                                  00
                                    0

                                                               0



   4





   z








































                                           3










                                      FIGURE 2, ALGAL BLOOM LOCATIONS ON THE LOWER NEUSE RIV



                                 0 VANCEBORO


                                            LITTLE SWIFT CR.
                               SWIF CR.




                                               NORTHWEST CR                                      TRENT CR.              BA R.
                BACHELOR C                                    UPPER ROAD CR.                     BAYBORO 0
                                  NEW BERN              I                                                     BROW R.
                                                                     GOO E CR.                                 BROAD C
                            TRENT R.        BRIC CR.                  2@@EARD CR.                KER5HAW R    I.T 3
                                                                                              GREENS R.
                                                                        MI   CR.    DA   ON R.


                                                                                                         NEU5E RIVER


                                                OTTER CR.


                                                      TUCK R CR.
                            N                     SLOCUM C                                                    DAM     R..
                                                            HANCOC    R.
                                                                         C          CR.
                                                                                                      LONG CR.
                                                                                                                        BACK C



                           ALGA                                                        CLUBFOOT CR.








                           FIGURE 3. ALGAL BLOOM LOCATIONS ON THE LOWER PAMLICO RIVE



                                                          ROAD CR.
                 WASHINGTON                                      v-
                                                                   PANTEGO C


                         BRO&D CR.
             CHOCOW I             ER      BAT   R.       PUN   CR.    PUNGO R.
             BAY                CR OS
                                                                          t


                                                    ORT CR.
                                                                              SLADE CR.



                                                                            FORI SCUE C


        Ln            BLOU 'S CR.
                              DURHA CR                  PAMLICO
                                                            RIVER                        OSE
                                                                                        BAY



                                     SOUT C
                                                 DON  CR                                    SWANQUARTE@
                                                                                            BAY
                       N               0
                                  AURORA
                                                      GOOS C                MOUSE HARBOR



                    ALGAL BLOOM                                              IDDLE BAY














                             TABLEI. ALGAL BLOOM SUMMARY FOR 1990
                                 STATION            DATE      ICHL-A BIOVOLUME DENS17Y          NH3/4 TKN         IN02/3 TP            P04                              TEMP       CONDUCTIVfTY SALlNrrY FISH KILL.                              BLOOMTYPE
                                                              uQ/I mm3lm3            unitslml mall ma/l           I ma/l ma/l mg/l               mg/l        su               c          umhos           ppt


                              CAPE FEAR
                             STEWART-I           _900515      @50 113537             73017      0.12 1.5          0.03 -1.2            0.08 11            9.14          130.5                                                  YES. TRAC VOL
                             STEWART-1           900802       6400 350745            85597      0.12 20           0.01      1.2        NS      -------------------------------------------                                     YES, CYA-ANAB SPI. APHA FLO, ANAC CYA
                             STEWART-1           900809       400 N/A                           0.23 3.9          0.04      .0.55              1 1.8      18.6          127        1                                           YES, CYA-ANAB SPI,CHL, EUG
                             BACKGROUND-1 900802              37       10567         25854      0.05 .0.7         0.01      10.08 INS          -------------------------------------------                                     YES_CHLE&IGBAC,CYA
                             H P CFrY LAKE- 900705            INS      14464         17468      INS  ------------------------------------             --------------------------         I-------                              YES, CYA-ANA13S RAC. ANAB LEV
                             HIGH PIT LAG-1 900705            INS      163388        32142      INS  -----------------------------------------------------------------------                                                   YES, GHL-STAU. SCEN QUA
                             OAKHOLLOW-1 900705               INS      12518         55200      NS   -------------- --------------------------------------------------------                                                   YES, CYA-ANABS RAC. ANAB LEV
                                                                                                --- F1.2 [43                                   3.4/2.2 17.5             12                                                     YE
                             MBN-D2 (LATH) 900710             12l      11134         2811       0.32                        11.1       1                                8.2        820                                            S. FIL ALGAL MATS
                             DEEP-OOL            900711       126      13503         8245       NS   -------------------------------           6          7.3           31                                                     NO. BUr CHL-CARTERIA SP
                             ROCKY-2A            900726       44       1`1889        13451      0.02       1.3    14.6      0.49       0.35    10.6/8., 8.5/8-1         2-7/24.5   355/347                                     YES, CHI, CRY, BAC
                             F=KY-1              900803       32       1662          6594       0.14       0.9    10.03     0.13       <.01 _ 3.6         6.7           22.3       103                                         YES, CHL, CRY, CHR
                             ROCKY-2             900803       44       1250          5590       0.42       2      16.2      0.88       0.69    1.1        6.3           23.1       558                                         YES@ CHR, CYA
                             ROBESON CR 1: 9008 13            23       3324          25854      0.03       0.7    10-04     0.11       0.01    12.2/12    8.918.E       29.5/29.5  282/284                                     YES, CYA, CHL. CRY, BAC
                                                                                                0.04       ---T9 4-0.86                0.74
                             NEW HOPE CR         900814       8        3211          15008                 0.7                                 0-0/8-0    9-0/9.(       27.5/27.51384/390                                      NO, BUT CYA
                             F MOSER POND        900e2l       ISIS     N/A   ------                        ------------     -----------------------------------------------------                                              YES, CYA-ANAB POR,SPI, BACTERIA
                             LAKECEDARHO` 900828              INS -------------------------------------------------------------------------------------------------                                                            YES, CYA-ANAB SUB, OSCI SP
                             JORDAN(CPFo         900913       174      1102611       1499604    0.17 11           10.04 .10.17 10.01 14.6/2.4 16.9/7.1126.9/26.81174/178                                                       YES, CYA ANAC CYN OSCI GEM, CHL,EUG
                             ATLANfrC OCE)       900723       NS       N/A   ---------------    NS   ----------------------------------------------------------------------                                                    FIL CYA-OSCl ERYTHRAEA
                                CATAWBA                                              I                                                         I                              .    I
                             BRAGG POND          900614       10       NfA   ---------------    0.29       1.22 <.05        0.06                          7.8           30.5/27    70                             YES          YES, CHL-CLOSTERIOPSIS
                             GRANTS-1            900621       14       5037          14658      0.03       0.5    0.01      0.07 _             11.6/0A 8.9              30         126                                         YES_EUGG _CHL,CRY
                             WISCNSLAKE          900730       10       813           16201      <.01       0.3    0.01      0.03       <@01    10.0112 5.7              30/26                                     YES          N:)
                             STEELECTIEEK        900801       5        3712          11572                                                     3.5        7.6                      330                                         NO. BUT CYA
                             SOUTH FORK P.       900820       1900.194116            11388760 0.08         8.8    0.04      2.5                20         8             33                                        YES          YES, CHL-CHLOROGONIUM EUCHLORUM
                             CROWD-15A           900905       35       112 51        156948 10.02          10.6   10.01     0.11       0.01    12.3       131.1         18.9       177                                         YES. EUG. CYA-MER TEN
                             LAKE NORMAN- 901003              N S--------------------------------------------------------------------------------------------------                                                            YES, CYA-ANAG CYA
                             L NORMAN (Dffl 90 10 16          6        695           3668       0.05       0.2    10-08     0.01       1       18.4/8 18.5              124/22     161/62.5                                    N:)
                             COMMSCOPE-1         901114       3500     1051475       38829      0.29       20     10.03     1.5        NS      ------- -----------------------------------                                     YES, CYA-COELOSPHAERIUM NAEGELIANUM
                                 CHOWAN                                                                           I                            I          I             I
                             CHOWAN-9            900612       14       305           1002       0.04       0.5    0.18      0.06       0.01 INS    ------------------------------------                                        N:)
                             2053632             900612       12       279   -  --   681        0.03-      0.4    0.23-0.05-           0.01- 6.9/6.9 6.8                23/25      73175                                       ND
                             2053652             900612       13       666           1380       0.07       0.3    0.15      0.06       0.01    7.3/7.3 7                24/24      82                                          N:)
                             ARROWHEADA          900619       15       11656         13695      0.02       0.5    0.07      0.07       <.01    8.8/6.1 7.8/7.:          28.3/24.8  78/72                                       YES CYA. CHL, CRY, BAC
                             CATHERINE-i         900619       24       5330          5066       0.02       0.5    0.04      0.06       <.011   9.2ti.9 7.5/6.,          29.1/24.3  67183                                       YESCYA
                             CHOWAN-14           Qoo6l9       12       3034          5401       0.02-0.5          0-1-      -0.07      <.Ol    8.4/5.9 7.1/6.,          28.9/25.4  66/67                                       IND
                             INDIAN-2            900619       11       3390          5590       0.01       10.5   -0.08     0.08       <.01    7.1/1.7 .7.2/6.:         28.8/24.4  74/100                                      N:)
                             ROGKYHOGK-1         900619       12       6857          10307      0.02       0.4    0   '02   0    '07   <.Ol    8.6/7.3 7.9/7.           27.2/26.2  79                                          YES, CYA
                             205360615           900619       9        1684          2533       0.01       0.5    0.09      0.08       <.01    8.4/6.2 7.1/6..          28.5/25.4  67/70                                       INO
                             2053632             900619       .10      .3475         4076       0.02       0.4    0.11      0.06       <.01    8.1/7      7.1/6         26.1/25.5  77/79                                       N:)
                             205363575           900619       16       114765        12438      0.03       0.4    0.07      0.06       <.01    8.2/6.5    7.3/7         26.6125.4  78178                                       YES,CYA
                             2053652             900619       6        111552        8860       0.02       0.4    0.09      0.06       <.01    a Ilir a   7 lir                          2                                     YES, CHLMD. CRY
                             2053652005          900711       NS       13095         3419       N S  -----------------------------------------------------------------------                                                   YES, CYA-ANAB POR, CRY
                             CATHERINE-7         900712       350      32805         8`122      NS   -----------------------------------------------------------------------                                                   YES. CYA -ANAB POR
                             CHOWAN-5            900712       250      69869         15897      NS   -----------------------------------------------------------------------                                                   YES, CYA -ANAB POR
                             INDIAN-8            900712       200      23698         6551       NS   ------------------------------------------------------------------------                                                  YE , CYA -ANAB POR
                             2093632             900712       120      31330         8036       0.27 11           10.01 10.11 1<.01 10.2/7.619.1                        130/29     180/80                                      YES, CYA -ANAB POR
                             2 3 52              900712       17       33::3                    0.18 10.5         10.02 --  10.08 --   [email protected]   -- 17.316-.5.17.5        1-29-12-8---- 8519-0 -----                             N:)          A
                             19=                 .900712      .270     122           !::;Ol     INS  ------------- -        -----      .....   ------ - ----            - - -      ---- -                                      YES CYA NAB POR
                                                  00  7   0
                                                 0 kO7
                                                 90072    6
                                                   0011   03
                                                 900803
                                                 9008     13
                                                 9008     14



























                                                                                     5590
                                                                                           3                          'u"              cOll    8-617-3    7
                                                                                                                      .09   0 08
                                                                                                                      .1'   0 06
                                                                                     10    07                     @OO 7     0.06
                                                                                                                                       <.o@
                                                                                     2 33                                                      1          7
                                                                                     4 0 P76                                           @.oj               7
                                                                                     12438                                             .01                7
                                                                                     a8    60                     0
                                                                                                                                                          -7
                                                                                                                      09    0 0  6














                             TABLE1. ALGAL BLOOM SUMMARY FOR 1990
                                 STATION              DATE      CHL-A BKNOLUME          DENSITY      NH3/4 TKN          IN02/31         TP     P04          m          pH        TEMP        CONDUCTIVITY SALINITY FISH KILL,                                     BLOOMITYPE
                                                                ug/I mm3/m3             units/ml mo/I MUM                  ma/I    MOM MUM                  mg/l       su             c           urnhos              ppt

                             INDIAN-8             900726        35      7142_ 3474                   0.29      0.9      0.06      0.09       _ 7/0.1                7.1          30/28       108/143                                        YES, CYA -ANAB POR, CRY
                             2053632              900802        14      5179            2180         0.18      0.6      0.15      0.11       0.01      5/3.8        6            27/28       77/75                                          YES   'CYA -ANAB POR, CRY
                             2053652              900802        16      6245            2725         0.14      0.6      0.06      0.07       <.01      6.1/5.8 .6.4              27/28       77/75                                          YES, CYA -ANAB POR, CRY
                             CHOWAN-ROCK          900802        100     1110923         2306         0.14      1.2      0.13      0.18       0.03      16.5/4.5T6.1              129/28      174/71                                         YES, CYA -ANAB POR ANAC CYA
                             CHOWAN-3             900912        370     INIA                         10.02-    2.9      0.06      0.3        c.01      INS  ------------------------------------                                            YES.CYA-ANAG CYA
                             2053574              901016        6       5109            699          0.05      10.3     0.08      0.08       0.01      6.8/6.9 6.2               23/23       83/83                                          YES, CHLIVID, CYA
                             205360615            .901016       4       1388            256          0.04      0.4      0.09      0.08       0.01      6.9/6.8 6.3               123/23      83/83                                          N:)
                             2053632              1901016       6       3652            1077         0.05      0.4      0.11      0.09       0.02      5.6/5.3 6.@123/24                     62/61                                          N:)
                             LITTLE TFNNESSEE                                                                                                                                    I
                             SANTEETLAH-11900620                27      10780           2492         0.3       0.8      0.02      0.1        0.01      NS   ------------------------------------                                            YES, CYA-ANAB POR, ANAC CYA
                                 LUMBER I                                                                                                                           I            I           I
                             ECHOLAKE-1 1900227                 1       .70             934          .0.2      0.5      10.26     0.02       [email protected]     110          16.9         111         138                                            ND
                             LAKE PINEHURd 900718               3       710             833          0.03      0.3      @.01      <.O I      NS        -------------- ----------------------------                                          ND
                                  NEUSE           I                                                                                                    I
                             GARNER POND          1900228       130     8306            4944         0.04      0.3      0.03      0.12       -c.01     13.2         6.5 -        12.1        74                                             YES, EUG
                             GOBBLE PCND          900315        17      N/A                          0.05      0.4      0.02      0.05       <.01      8.6          6            19.3        86                                             FILGREENS
                             WNDL-D2 (L WE        900705        270     58404-          13014        0.01      5.1      <.01      0.39                 15.gto.@ 8.1              28          110                                            YES. CYA-ANAB, APHA FLO, ANAC CYA
                             VET S-1              900812        4800    96001           61722        NS   -------------------------------              5/4.1        7.9/7.6 27.5/26.4        94/95                            YES           YES CYA-ANAC CYA
                             VET S-2              900812        140     .38055          24339        10.79     2.7      0.03      10.98      10.05     4.8/0.1      7.6/6.6 27.6/25.3        91/99                            fYES          YES EUG, CYA
                             YET S-3              900812        88      115001          18459        0.74      2.6      0.03      10.86      0.06      4.1          7.6          .26.4       93/108                           YES           YES EUG, CYA-ANAC CYA
                             ENO-1                900821        250     130120          6580         0.05      0.9      0.46      0.23                 16.1/2.5     7.2/7.2129.5/29.5        170/205                                        YES, EUG
                             ENO-2                '900821       83      130325          6359         0.05      1.1      0.14      0.28                 15.913.8     7.1/6.9 27.5             27.5                220/228                    YES, EUG
                             NEU010               900912        33      15271           12578        0.02      0.7      0.06      0.11       <.01      8.610.2      7.1/6.4 28.8/25.5        185/205                                        YES. EUG, CYA
                             ALLIGATOR-5 (        900315        140     135788          33191        <.011     1.3      <.01      0.09                 17.6/10      8.8          20.6/16.5                       9.0/10                     YES DIN-PRO MIN
                             CHAPPEL-7 (B         900315        71      12178           13364        @.Oll     0.8      <.01- 0.06           -- --     11.2/11      7.4          22/22                           17.7.2                     YES DIN-PRO MIN, CRY
                             RACCON-2 (B          900315        56      7414            11005        0.13      0.8      k.01      0.08                 9.8/9.6      7.1          22/22                           7.5/7.5                    YES DIN-PRO MIN, BAC
                             TRENT-1 (BAY         900315        110     25910           24980        @.Cll     0.9      1..01     0.06       <.011 -   -9.3/0.4     7.1          17/13.5                         9.2/10.2                   YES DIN-PRO MIN
                             VANDEMERE-8          900315        7       1414            1834         0.07      0.7      10.25     0.03                 910.2        6.7          24/13                           5.5/9.8                    N:)
                             NEU139               1900319       140     4954            19128        0.01      0.6      0.03      0.09       0.02      .12/5.6      8                 16     8400/17700          5.0/11                     YES, OIN-PRO MIN, HET TRI, BAC-SKEL POT
                                                                25      1044            11398        0.01      0.4      <.01      0.06       0.01      10/5.9                                7280/11660          5.                         YES, BAG-CYCL SP3, DIN PERI TRO
                             NEU139               900524                                                                                                                                                            0/7
                             NEU131X              900524        120     14710           11049        ..0.01    0.5      0.01      0.07       0.01      [email protected]      8.7          123/22      3640/11130          2.0/7                      YES, DIWGYM NEL.GYR AURCRY
                             NEU131F              900627        16      11066           10365        0.02      0.6      0.1       0.06       0.01      9.8  /0.2                 /28         312819400           2/5.5                      YES. BAC-CYCL SP3, CRY,CHR
                             2092586              900627        27      113190          27077-       0.01      0.5      <.01      0.07       0.02      Ig/.6        8            129/28      5520/8930           4.0/7                      YES, XAN-OLISCAR.CRY.CHR
                             ORIENTAL-LAG         900718        90      13773           19041        NS   -----------------------------------------------------------------------                                                           YES, CHL-CHLLA, CYA ANABS RAG
                             NEU131X              900724        23      2957            18779        0.02 0.5           <.01      0.09       0.04      19.5/0.1     8.7          31/29       14960/28520         10.0/18                    YES, DIN, CRY
                             NEU139               .900724       21      8868            12578- 0.02 0.4                 I<.01     0.1        0.05      18.7/2.4     8.6          30/29   -- 20250/24380          13/16                      YES, DIN, CRY, CYA-PHOR ANG
                             NEU131F              1900725       34      2438_ 3756                   0.02      0. @60. @O6        0.15       0.03      8.7/0.1      8.3          29128       92 -00/24440        9.0115                     YES, DIN-GYR AUR,BAC,CRY
                             NEUSE-12             900817        13      1046            3052         0.01      0.6      [email protected]     0.13       0.08      6.710        8.4---       28/28       21000/28500         12.0118      YES           NZ)
                             HARTPOND             900926        NS      N/A   ---------------        NS   -------------------------------              7.1          6.7          19          112                              YES           YES, CYA - ANAB PORT
                             GREENSPRINGS 900827                29      .2223 -         13975        0.07      0.5      0.36 0.2             0.09      7.9/8        -8.2         31/30       29-00/3600          2.012.0                    YES, XAN-OLIS CAR CRY
                             GREEN SPRINGS 9 0 0 8 2 7          26      11278           36102        0.06      0.3         .34    0.21       0.1       7.9/8        8.2          131/30      2900/3600           2.012.0                    YES, XAN-OLIS CAR CRY
                             GREENSPRINGS 900827                51      11984           35170        0.13      0.5      0.08      0.32       0.22-     7.9/8        8.2          31/30       290013600_ 2.0/2.0                             YES, XAN-OLIS CAR, CRY
                             NEUSE-2              900916        25      6409            66381        0.03      0.6      <.01      0.23       0.18      111.1/0.     8.5          28/27-- 11280/16800             7.0/10       IYES          YES, BAC-CYCL SP3, CYA
                             NEUSE-4              900916        25      4960            90488        0.03      0.6      <.01      0.22       0.14      10.4/4.:     8.8          28/27       18800119200         12.0/12      IYES          YES. BAG-CYCL SP2. CYA
                             NEUSE-7              900916        22      10416           84898        0.03      0.6 -- 0.01-       0.16       0.16      9.5/0.2      8.7          27/27       12000/15360         7.0/9.5      IYES          YES, BAC-CYCL SP3.CRY
                             2092162              900926        39      2485            145419       0.03      0.8 _0.29          0.17       0.08      1 Ofl.5      8.3          22/22       7950/74310          5.           o YES         YES, DIN, BAC-CYCL SP283
                                                                                                                                             I                                                                      2L
                             NEU131F              900926        53      19 ZR .. L @29967            0--o-lAo.7         1<.01     0.2        0.09      10.5/2A      8.7          2-2/22      10600/16960         611 @g 5     YES           YES BAC-CYCL SP2
                             NEU131X              900925      P         15474           1172591      [email protected]@,.01                   0.16       0.1       10   4/2.1:@.7            122/23      115900/21840        10.0/14      YES           YES, BAC-CYCL P2                            ---
                             MILL CR-B            901204      117       17776           19549        10.02 10.5         I<.01     10.08      0.02      71                        16                              16                         YES, DIN-PRO MIN














                              TABLE 1. ALGAL BLOOM SUMMARY FOR 19
                                   STATION            DAT                                                                                                                                                                            FISH KILLI
                                                            E     CHL-AlBIOVOLUME         DENsrrYlNH3/4                J@@0271@3 __;TPI            P04        [0           13H           MP       CONDUCTIVITY SALINITY                                                 BLOOMTYPE
                                                                  un/l mm3/m3             units/ml ma/I                                                     11 m /I        su             C            umbas               pp,


                              MILLCRMAR 901204                    140       88369         79133 0.02             1.3        <.01      0.21 0.03 7.8                     6.8        16                                   16                         YES, DIN-PRO MIN
                              PASCIIJOTANK                                                                                  L
                              ALBEMARLE-A 900417                  NS        N/A  ----------------      NSW@      - ------------------------------------------------------------                                                                    FIL CHL-CLADOPHORA SP
                              RCANOKE-B            1900417        NS        N/A  ---------------       NS    ------------------------           ------      17.5/7.4 6.5           18/16          91/94                                            nL BAC-MELOSIRA VAR, CHL SPIROGYRA, U
                              ALB BEACH            900706         NS        IN/A ------ --------       INS   ------------------------------------------------                      28.5                                                            FIL CYA-TOLYPOT14RIX SP
                              2081185 (KEND 900712                NS        130400        2030         10.01 10.6           10.02 10.15 0.02 17.8                       17.3       30             117                                              YES, CHLMD. CRY
                              208117810            900820         14        14456         14761        0.02 10.5            10.02 10 05 10.01 18.9/2.2 17.3                        31130          3036/4500             2,0/3.0                    YES, XAN-OLIS CARCRY,CYA
                                  ROANOKE                                                              I         I          I         I         I           I           I
                              ROANCKENETS          900314                   N/A           ISIS  --------------------------------------------------------------------------------                                                                   FIL BAC - MELOSIRA FTA TE
                              rAR-PAMLICO                                                                        i          I         I         I           I           I          I
                              GREENVILLE LIT       900719         NS        N/A  ---------------       N S   -----------------------------------------------------------------------                                                               RL CYA-LYNG NANA, OSCI CHL,OSCI GEM
                              GREENVILLE Ur        901008         ISIS      NIA  ---------------       NS    ----------------------------------------                   7.2        23             198                                              FIL CYA-LYNG NANA, OSCI SP. CHL-CHLA S
                                                   900305         .52       1 1                                             F_                                                                                                                     YES, BAC-SKEL COS
                              CHOCO,l                                       7393          26028        0.02 0.4             0.04 10.12 (@.01                13/12.4     8.7        12.0111        2271243
                              BACK CR-92           900525         NS        16085         30046        ISIS  -------------------------------                8.918       7.8        23/23                                1.5/1                      YES, DIN
                              MBc                  900525         NS        12000         33190        NS    ------------------                             9.2/7.8     7.7        24/23                                1.5/11.5 _YES.XAN.BAC,CRY
                              MOB                  900525         NS        1641          10132        NS    -------------------------------                9.8/7.7     8_ 24/23                                        1.5/1.5                    YES, XAN,BAC,CHL
                              PAM-BATH CR          900525         NS        11897         28474        NS    -------------------------------                9.2/6.5     7.2        22/22                                1/2.5                      YES, BAC.CRY
                              TAR057G              900604         23        19955         46641        0.02 0-5             0.06      0.11      0.02        10/4.6      8.7        126/23         102919360             0.5/6                      YES. DIN. BAC,CRY
                              TAR057GO85           1900604        15        1713          26727        0.02 0.6             <.01      0.13      0.01        19.8/4.4    8.9        27/24          134/6630              0.514                      YES, BAC-CYCL SP2
                              2084534              900604         34        113577        88217        0.05 0.5             <.01      0.12      0.03        19.4/7.6    8.7        27/26          297613087             2/1.5                      YES, XAN-OLIS CAR.BAC-CYCL SP2
                              CHOCO,t              900604         31        12996         70224        0.01 0.7             0.01      0.16      0.0 f       19.519.8    8.7        26126          1471147                                          YES, BAC-CYCL SP3, CRY
                  co          ENMEHARI)            900612         25        15780         97126        NS    ----------------- -------------                110/9.5     8.3-16                                - 18.5                               YES, BAC - CYCLOTELLA SP 2 & 3
                              TAR057G              900718         62        6602          17017        0.04      0.5        0.01      0.65                  8.2/1.7     7.2        30/27                                6.4/7                      YES, DIN,CYACRY
                              PAM-WASH             900718         50        N/A  ------ --------       0.02      0.6        0.08      0.11                  12.0/5      8.4        36/34                                                           YES, CYA-MER TEN BREAKING UP
                              PAM-2A               900724         20        21354         2-9347       0.03      0.06       <.01      0.18                  8.2/7.1     7.9             29                              5/5.9        YES           YES, DIRCYA
                              PAM-413              900724         27        3739          11412        0-.02     0.6        <.01      0.15                  8.3/0.2     7.5        __29128                              5.8/9.2      YES           YES, DIN.CYA
                              PAM-5C               1900724        36        13414         21225        0.03      0.6        c.01      0.1                   8.5/0.2     8          29128                                             YES           YES, DIN,CYA
                              PAM-71)              IgOO724        23        3414          24980        0.02      0.5        <.01      0.12                  7.8/0.3     8.2        30/27                                5.6111.8     YES           YES. DIN.CYA
                              PAM-10E              900724         85        .36260        25675        .0.02     .0.6       1c.01     .0.3                  J9.816.2    9.6        31/28                                7.2/7.2      YES           YES, DIN.CYA
                              PAMLIGO-RACP 900726                 NS        IN/A ------ --------       Ns    -----------------------------------------------------------------------                                                 ICRAB KILI FIL RHOD4COMF'SOPOGON COERULEUS
                              PUNGOCR-2            900801         62        11405         14616        0.02      0.7        c.01      0.09                  7.5/3.5 7.9            30128                                7/7.5        CRAB KILI YES, DIN.CRY,CYA
                              PUNGOCR-5            900801         28        2559          12985        0.011     0.6        <.Oi      0.07                  8/0.1       8.1        29127                                7.9113. 1    CRAB KfL( YES, DIN.CRYCYA
                              PUNGOCR-8            900801         27        2634          10248        0.02      0.6        c.01      0.06                  8.7/0.6     8.5        29/28                                6.5/10.2 CRAB KILI YES, DIN.CRY.CYA
                              PUNGO CR,9           900801         51        14505         12461        0.02      0.6        @.Oll     0.07                  8.5/0.1     6.3        30127                                5.2/11.5 CRAB KILI YES, DIN.CRY.CYA
                              2084519505           -900802        8         1394          13844        0.04      0.7        0.02      0.06                  7.7/2.4     6.8        29/28                                5.2/6.2                    YES,XAN.CYA,DINCHRBAC
                              BROADCREEK           1900815        NS        N/A  ------ ---------      ISIS  ------------------------------------------------------------------------                                                              MACRO ALGAE-NITELLA SP.
                              PAMLICO-5            900027         60        15517         47515        0.04 10.7            1..01 10.25 1                   111.3/7.f 8            29.7/28.2                            4.3/4.2 CRAB KILI YES.DIN.CYABAC
                              PAMLICO-6            900827 32                4393          33278        0.02 10.6            [<.01 10.37 1                   18.7/0.1    8          29.3/27.2                            .8/12.3 CRAB KILt YESDIN.CYACRY
                              SUMMER-Al            900827 NS_               4766          30134        NS    ----------------------------------------                   7.9                                                          ICRAB KILt YES.DIN.CRY.BAC,CYA
                              PUNGO-1              900829         31        237S          38780                                01     0.11                  9.5/0.3     8          31128                                7.0/12       IYES          YES,DIN,CYABAC
                                                                            6057                       0!21                                                 .5/1.5      6.8        1                                    9.5/10.61                  YES, DIN-OXY MAR
                              HERRING-A            901219-        21                      2853         5 oi ?@-!:05!01 0.15                                 2                        4/13
                               WHITE OAK
                              209317585            1901002        144       11461         7570         0.16                           0.24      0.14        0.4         7 2                       29000                 7                          YES, CHIR-OCHIR SP, BAC-MELOSIRA VAR
                                   YADKIN                                                                                                                                                         I
                              DUTCHMAN-1 900201                   16        182           442          N     -----------------------------------------------------------------------                                                               N:)
                              HANES-1              900725 90                13265         120962       0.14 16.4            1<.01     3.1       1           Lo - a      7.2        127.5          f                                                YES. CHL-ANKI FAL MI
                              HANES-2              900725         18        12684         1 L922       10.04 10.7           [email protected]     0.08                  110.1       18.6       127.5.- 1                                                       NO. BUT ENRICHED
                                                                                                                     57
                                                                                                                 OH 0 W01









                                                                             CAPE FEAR RIVER BASIN































                                                                                                                     ........... J.






                     Stewart and Background Ponds, Randolph County
                     Sampled by S. Knight           900515, 900802, 900809


                     Water   quality samples were collected from Stewart Pond
              during May     and August in response to a. complaint from the
              landowner.     This pond receives discharge from an upstream
              wastewater     treatment plant.
                     During sampling in May, high DO (11.0 mg/1) and pH (9.1)
              levels were    detected.  The elevated dissolved oxygen represented
              supersaturated conditions which result when photosynthetic activity
              is increased in the presence of large numbers of algae.
                     Phytoplankton analysis confirmed the presence of an algal
              bloom with elevated biovolume and density estimates comprised of
              99% euglenophytes. A ubiquitous euglenoid, Trachelomonas
              volvocitia, which is commonly found in ponds, dominated the sample.
              Large numbers of euglenoids are often indicative of organic
              enrichment.    A similar euglenophyte bloom occurred in Stewart Pond
              in September of 1988.
                   During August, water quality samples were again collected
              because of the presence of persistent algal blooms. On August 2, an
              algal bloom dominated by Anabaena spiroides and A12hanizomenon
              flos-aguae, both cyanophytes, occurred in Stewart Pond.          Another
              buoyant blue-green, Anacystis.@yanea, was also prevalent in the
              pond sample.     These buoyant algae created a bluish-green scum
              covering the pond's surface. On the same date, Background Pond,
              which is located near Stewart Pond, was sampled for comparison
              since it does not receive wastewater discharge as does Stewart Pond.
              Background Pond contained algal bloom levels dominated by several
              classes of algae including chlorophytes, bacillariophytes,
              euglenophytes, and cyanophytes.
                   A week later, Stewart Pond was. sampled after rainfall events.
              The sample contained a massive bloom of cyanophytes, dominated
              by Anabaena    'SDiroides. Chlorophytes, and euglenophytes were also
              abundant.
                   Water quality samples collected during May and August show
              that Stewart Pond supported algal bloom levels of algae along with
              astronomical levels of chlorophyll-a (350-6400 ug/1) and excessive
              nutrient concentrations.   Total nitrogen levels ranged from 1.53' to
              20.01 mg/I while total phosphorus measured 0.55 to 1.2 mg/l.
              Although Background Pond also contained algal bloom conditions,
              they were not nearly the magnitude that was found in Stewart Pond.



                                                   10






                       The close proximity of the upstream wastewater discharge above
                  Stewart Pond or possibly non-point source runoff may be
                  contributing nutrient inputs to which the phytoplankton were
                  responding.     Unless the source of nutrients is controlled, recurring
                  algal blooms are probable.


                         Stewart Pond         900515
                  Total Biovolume      = 113,537 mm3/m3
                  Total Density        =  73,017 units/ml.
                  Chlorophyll-a        =  350 ug/l
                  Algal Bloom          =   Yes


                         Stewart  Pond        900802
                  Total Biovolume      =  350,745 mm3/m3
                  Total Density        =  85,597 units/ml.
                  Chlorophyll-a        =  6,400 ug/l
                  Algal Bloom          = Yes

                         Background    Pond
                  Total Biovolume      = 10,567 mm3/n,3
                  Total Density        = 25,854 units/ml.
                  Chlorophyll-a        = 37 ug/l
                  Algal Bloom          = Yes







                         High Point City Reservoirs, Forsyth County
                         Sampled by D. Molnar               900707


                         Three reservoirs near High Point were sampled because of an
                  apparent algal bloom. Blue-green algal blooms dominated by
                  Anabaenol2sis.raciborskii and Anabaena levanderi occurred at High
                  Point City Lake and Oak Hollow Reservoir, while High Point Lagoon
                  contained high numbers of green algae.


                         High Point City Lake
                  Total Biovolume      = 4,464 mm3/m3
                  Total Density        = 17,468 units/ml.
                  Chlorophyll-a        = not sampled
                  Algal Bloom          = Yes









                       High Poi  nt Lagoon
                Total Biovolume      = 63,388 mm3/m3
                Total Density        = 32,142 units/ml.
                Chlorophyll-a        = not sampled
                Algal Bloom          = Yes

                       Oak Hollow    Reservoir
                Total Biovolume      = 2,518 mm3/m3
                Total Density        = 55,200 units/ml.
                Chlorophyll-a        = not sampled
                Algal Bloom          = Yes






                       Latham Lake (MBN-D2) Alamance County
                       Sampled by G. Price                900710         1325


                      Algal bloom samples        were collected from Latham Lake during
                ambient lakes monitoring.         Thick algal mats were prevalent on the
                lake's surface.     During sampling at midafternoon, low dissolved
                oxygen concentrations ranging from 3.4 mg/1 on the surface to 2.2
               .mg/l at 1.5 meters depth were found.            An elevated conductivity of
                820 uhmos was also present. The town of Mebane's wastewater
                tre*atment plant is located approximately one mile upstream.
                Similarly, elevated 'conductivities are often associated with
                wastewater treatment plant operations.
                      Quantitative phytoplankton counts revealed moderately low
                algal biovolume and density estimates.            The corresponding
                chlorophyll-a concentration was moderate at 21 ug/l.                Phytoplankton
                growth was perhaps being limited by shading or some other factor.
                      Nutrient levels in Latham Lake were excessive with total
                nitrogen, total phosphorus and ammonia/ammonium reaching 5.9,
                1.1, and 0.32 mg/l, respectively.
                      Because of hypereutrophic conditions in Latham Lake, Mebane
                will not be able to expand its treatment plant facilities. In order to
                expand in the next      few years, the town plans to drain Latham Lake.


                Total Biovolume      =  1,134 mm3/m3
                Total Density        =  2,811 units/ml.
                Chlorophyll-a        =  21 ug/l
                Algal Bloom          =  Yes



                                                          12








                         Deep River above dam at Coleridge, Randolph County
                         Sampled by S. Knight                900711


                        A run of the river impoundment on the Deep River was sampled
                  for algal blooms prompted by complaints of reddish colored water.
                        A quantitative algal count was conducted and the
                  phytoplankton sample's biovolume, density and chlorophyll-a
                  concentration were found to be approaching bloom levels. The algal
                  sample was dominated in biovolume by 87% chlorophytes with
                  Carteria spp. dominating the sample. This algae may have been
                  responsible for the reddish colored water observed.


                  Total Biovolume      = 3,503 mm3/m3
                  Total Density        = 8,245 units/ml.
                  Chlorophyll-a        = 28 ug/l
                  Algal Bloom          = No









                         Rocky River, Chatham County
                         Sampled by E. Williams              900726        1630


                         The Rocky River was sampled because of a pea-green color. A
                  bloom of chlorophytes, bacillariophytes and cryptophytes occurred in
                  this slow flowing' portion of the river. Excessively high nutrient
                  levels were feeding the algae. The high corresponding chlorophyll-a
                  concentration confirmed algal bloom conditions.

                  Total Biovolume      = 1,889 mm3/m3
                  Total Density        = 13,451 units/ml.
                  Chlorophyll-a        = 44 ug/l
                  Algal Bloom          = Yes







                                                            13








                       Rocky River, Chatham County
                       Sampled by K. Lynch, C. Smith              900803        0630


                     The Rocky River was sampled after citizens              expressed concern
                that Siler City's wastewater treatment plant was             adversely affecting
                the  Rocky River and contributing to algal blooms. The wastewater
                treatment plant discharges into Loves Creek which enters the Rocky
                River approximately a quarter of a mile below US Highway 64. Bloom
                samples were collected above and below the discharge.                  Nutrient
                analyses revealed elevations in total phosphorus at both sites
                sampled, while high levels of total nitrogen and
                ammonia/ammonium were found at Rocky-2, below the confluence
                with Love's Creek.
                     Moderate phytoplankton densities were found at both stations.
                Because of the slow-flowing nature of the Rocky River during the
                summer, free-floating phytoplankton populations were, allowed to
                build up more than would be expected in a faster flowing creek.
                     At the upper site, Rocky-1, algal classes were dominated by
                chlorophytes, chrysophytes and cryptophytes.
                     Downstream at Rocky-2, chlorophytes, chrysophytes and
                cyanophytes dominated the sample.              The filamentous blue-green,
                Oscillatoria chlorina, which comprised 29% of the biovolume is a
                pollution tolerant algal species.
                       In addition, high chlorophyll-a concentrations were detected at
                both sites.



                       Rocky-1
                Total Biovolume       = 1,662 mm3/m3
                Total Density         = 6,594 units/ml.
                Chlorophyll-a         = 32 ug/1
                Algal Bloom           = Yes

                       Rocky-2
                Total Biovolume       = 1,250 mm3/m3
                Total Density         = 5,590 units/ml.
                Chlorophyll-a         = 44 ug/1
                Algal Bloom           = Yes









                                                          14








                          Robeson Creek, Chatham County
                          Sampled by K. Lynch, C. Smith              900803        0630


                         Robeson Creek was sampled due to an obvious               algal bloom
                   signified by elevated surface pH (8.9) and dissolved oxygen
                   concentrations (12.2 mg/1). The dark green color also indicated                algal
                   bloom conditions.
                         The algal sample contained a bloom dominated by
                   bacillariophytes, chlorophytes, cryptophytes and cyanophytes.                  The
                   greenish colored water may have been caused by the high density of
                   Oscillatoria geminata, a small filamentous blue-green alga. This
                   species is widespread in eutrophic waterbodies across North Carolina.
                   Similar algal blooms have been documented in past years (1986,
                   1987) in Robeson Creek.

                   Total Biovolume         3,324 mm3/m3
                   Total Density           25,854 units/mi.
                   Chlorophyll-a           23 ug/l
                   Algal Bloom             Yes



                          New Hope      Creek (02097314), Durham County
                          Sampled by E. Williams                     900814                1350



                         New Hope Creek was sampled during low flow conditions. An
                   elevated pH (8.98) and discolored water indicated a possible algal
                   bloom.     Algal biovolume, density and chlorophyll-a were moderately
                   low. Anabaena sl2iroides, a cyanophyte, comprised 79% of the
                  .biovolume and may have been responsible for the greenish
                   appearance of the water.
                         Very high levels of nutrients were present in New Hope Creek,
                   with total nitrogen reaching 10.1 mg/l and total phosphorus
                   measuring 0.74 mg/I.        With the high nutrient concentrations and
                   moderate algal growth, evidentally some factor was limiting
                   phytoplankton productivity.

                   Total Biovolume      = 3,211 mm3/m3
                   Total Density        = 5,008 units/ml.
                   Chlorophyll-a        = 8 ug/l
                   Algal Bloom          = No





                                                            15







                  F. Moser Pond, Alarnance County
                  Sampled by E. Galamb        900821     1120


                 Algal bloom samples were collected in response to a complaint
             investigation. A small pond had colorful Ted and white floating mats
             of algae. Cyanophytes, chlorophytes, and euglenophytes were found
             in the surface sample. The Ted and white floating mats were likely
             caused by the dominant alga, Anabaena portoricensis,, which like
             other cyanophytes produces such colors upon senescence.




                  Lake Cedar Hollow, Guilford County
                  Sampled by A. Hagstrom            900828     1100


                  Algal bloom samples were collected after a resident complained
             of discolored water in the lake. Wind had apparently blown and
             concentrated algae in the upper end of the lake where the sample
             was collected. The sample contained a massive bloom of Anabaena
             subcylindrica which was in the process of deteriorating, and
             therefore formed green and white surface scums. Anabaena
             subcylindrica, a filamentous cyanophyte is commonly found in
             eutrophic waters during the warmer months.
                  Although nutrients were not collected, the lake's tributaries
             traverse horse and cattle farms, which input nutrients into the lake.





                  B. Everett Jordan Reservoir (CPF081AIC), Chatham County
                  Sampled by K. Trumbower           900913           1030


                 An algal sample was collected on the New Hope arm of Jordan
             Reservoir after green, turbid water was observed. The sample
             contained a bloom comprised of 71% cyanophytes. Anacystis cvanea,
             a colonial alga that forms surface blooms and Oscillatoria geminata, a
             small filamentous -alga, were the dominant cyanophytes. Other



                                             16







                  dominant algal classes include euglenophytes, chlorophytes and
                  bacillariophytes-.   The high algal biovolu,me and density estimates
                  were exemplified by the elevated corresponding chlorophyll-a
                  concentration of 74 ug/l.       Nutrient levels including
                  ammonia/ammonium (0.17 mg/1) and total phosphorus (0.17 mg/1)
                  were also elevated.

                  Total Biovolume         102,611 mm3/m3
                  Total Density           499,604 units/ml.
                  Chlorophyll-a           74 ug/l
                  Algal Bloom             Yes











                         Atlantic Ocean, Brunswick County
                         Sampled by unknown fisherman 900723


                         A fisherman collected a water sample after observing small
                  filaments floating in discolored water.         The sample was collected
                  approximately fifty miles offshore from Bald Head Island. The algae
                  was identified as Oscillatoria erythraea., a filamentous brackish water
                  cyanophyte, commonly referred to as 'sea sawdust' because of its
                  scalelike appearance. This alga annually forms vast areas of
                  discolored water in the open sea during warm weather.                Although no
                  fish kill was observed in this instance, either toxic compounds
                  released when these algal cells lyse or gill clogging caused by the
                  high density of cells have been reported to cause fish kills. (Humm,
                  1980)












                                                           17









                    CATAWBA RIVER BASIN















































                           18






                   Bragg Pond, Mecklenburg County
                   Sampled by M. Durham, Mecklenburg County Environmental
                   Protection Laboratory        900614     1457


                  Algal bloom samples were collected from  Bragg Pond following a
             fish kill. The algal sample was dominated by chlorophytes
             (ClosteriopaLis longissima tropica) and euglenophytes, which may
             have been responsible for the observed reddish colored water.   The
             algal sample was unpreserved and slightly deteriorated, therefore it
             was not counted.   The corresponding chlorophyll-a value of 10 ug/l
             signified minimal algal growth.
                  Low DO concentrations (4.8 mg/l on the surface to 3.3 mg/l at
             one meter depth) found during the fish kill may have contributed to
             the death of the fish. During sampling on June 14, water quality
             parameters were normal.






                   Grants Pond, GastonCounty
                   Sampled by T. McManus, K. Haynes        900621      1400


                   Grant's Pond was sampled on June 21 in response to   a
             landowner's complaint of speckled pea-green water.   This small pond
             also contained elevated surface pH and DO measurements    which was
             likely a result of algal photosynthesis that is greatest around mid-
             day.
                   Quantitative phytoplankton counts confirmed a minor algal
             bloom consisting of 76% euglenophytes by biovolume. Euglenophytes,
             predominately, Trachelomonas smiewiki. were probably responsible
             for the observed flecks and discoloration of the water. In addition,
             cryptophytes and chlorophytes were also dominant by density
             estimates.
                   The pond's  biovolume reflects borderline bloom conditions or
             the presence of a minor algal bloom.

             Total Biovolume  = 5,037 mm3/m3
             Total Density    = 4,658 units/ml.
             Chlorophyll-a    = 14 ug/l
             Algal Bloom      = Yes



                                              19







                         Wilson's Lake, McDowell County
                         Sampled by J. Reid          900731        1430


                        On July 30, algal bloom samples were collected following a fish
                  kill at Wilson's Lake. A high dissolved oxygen concentration (10.0
                  mg/1) was found on the lake's surface.
                        A diversity of algal classes were dominant in the pond including
                  bacillariophytes, chlorophytes, chrysophytes, cyanophytes,
                  dinoflagellates and euglenophytes.        The total algal biovolume of 813
                  MM3/m3 and density of 6,201 units/ml were not excessively high.
                  Furthermore, the corresponding chlorophyll-a of 10 ug/l represented
                  little algal growth.      Phytoplankton apparently were not responsible
                  for the fish kill.


                  Total Biovolume.     = 813 mm3/m3
                  Total Density        = 6,201 units/ml.
                  Chlorophyll-a        = 10 Ug/l
                  Algal Bloom          = No





                         Steele Creek, Mecklenburg County
                         Sampled by M. Durham, Mecklenburg County Environmental
                         Protection Laboratory              900801        1400

                                                                              1

                        Steele Creek was sampled August I because of complaints of
                  turbid, green water.      Although fish did not appear stressed, surface
                  DO was low at 3.5 mg/l.
                        The phytoplankton biovolume of 3,712 mm3/m3 was slightly
                  elevated with the stagnant conditions in Steele Creek.            The
                  phytoplankton sample was dominated by cyanophytes including
                  Anabaena species and Aphanizgmenon flos-aquae, which probably
                  tinted the water a greenish color.         The accompanying chlorophyll-a
                  value of 5 ug/I was low.


                  Total Biovolume      = 3,712 mm3/m3
                  Total Density        = 1,572 units/ml.
                  Chlorophyll-a        = 5 ug/l
                  Algal Bloom          = No



                                                          20








                     South Fork Pond, Gaston County
                     Sampled by T. McManus                  900709       1100


                    South Fork Pond, created     by the backwaters    of the South Fork
              Catawba River, was sampled in      response to a fish  kill. The fish kill
              and apparent algal bloom were detected after warm, dry weather.
              As early as 11:00 a.m, a supersaturated D.O. concentration was
              observed.    Although the surface D.O. was elevated, waters below the
              surface may have been depleted of oxygen as a result of evening
              respiration and decomposition of dead algae, which probably
              contributed to the fish kill.
                    A large bloom comprised of 99% chlorophytes occurred in South
              Fork Pond. These backwaters which had been isolated from the
              river, created optimum conditions for phytoplankton growth.
              Phytoplankton numbers increased to astronomical proportions due to
              the lack of flushing.
                    The sample's dominant species, Chlorogonium euchlorum, a
              chlorophyte, is commonly found in swamps, shallow ponds and
              aquariums.
                    An exceedingly high chlorophyll-a value (1,900 ug/1)
              accompanied the sample. Even with the high amount of algal growth,
              nutrient levels were extremely elevated with total nitrogen values
              reaching 8.84 mg/I while total phosphorus measured 2.5 mg/l.
              Evidentally a nutrient source is fueling the algal growth, which is
              accelerated by the stagnant conditions in South Fork Pond.




              Total Biovolume     = 194,116 mm3/m3
              Total Density       = 1,388,760 units/ml.
              Chlorophyll-a       = 1,900 Ug/l
              Algal Bloom         = Yes















                                                    21







                         Crowders Creek, York County, S.C.
                         Sampled by K. Lynch, T. McManus                  900905         1530


                         A reddish orange algal bloom was           found in upper Crowders
                  Creek during a special study of Lake Wylie. While euglenophytes
                  caused the reddish surface film, pea-green water below the surface
                  was probably due to the high density of Merismopedia tenuissima, a
                  colonial cyanophyte. Elevated DO (12.3 mg/1) and pH (8.9) levels
                  were also indicative of algal bloom conditions. This upper arm of
                  Lake Wylie is shallow and receives high levels of nutrients which are
                  recirculated and are therefore available for phytoplankton
                  utilization.


                  Total Biovolume      = 12,551 mm3/m3
                  Total Density        = 56,948 units/ml.
                  Chlorophyll-a        = 35 ug/l
                  Algal Bloom          = Yes

                         Lake Norman, Catawba, Iredell Counties
                         Sampled by A Parker                901003        1340
                         Sampled by K. Colson               901016        1530



                       Phytoplankton samples collected for identification from Lake
                  Norman on October 3.,. confirmed the presence of a blue-green algal
                  bloom.     The light green suspended flecks observed throughout the
                  water column were identified as Anacystis.cvanea, a colonial
                  cyanophyte, which forms surface blooms.              Extended warm weather
                  combined with a low rate of flushing in the cove of the lake probably
                  spurred the algal bloom.        In October 1985, nutrients were
                  recirculated during fall turnover causing blooms of A. cyanea in
                  other coves in Lake Norman. High corresponding chlorophyll-a
                  concentrations accompanied those samples.
                       Lake Norman was again sampled on October 16 at a different
                  location after reports of excessive algal growth. A diversity of algal
                  classes were represented in the sample.           Nutrient, chlorophyll, and
                  phytoplankton numbers were all low, and were not indicative of
                  algal bloom conditions.

                  Total Biovolume      = 695  mm3/m3
                  Total Density        = 3,668 units/ml.
                  Chlorophyll-a        = 6 ug/l
                  Algal Bloom          = No



                                                           22








                    Commscope Lake, Catawba County
                    Sampled by K. Haynes          901114      1420


                   Commscope Lake was sampled on November 14, because of the
              presence of large spherical flecks of algae throughout the water
              column. The sample contained Coelosphaerium naegelianum, a
              colonial cyanophyte which consists of large globular colonies of cells
              that can easily be seen with the unaided eye. C. naegelianum is an
              important component of water blooms, is widespread and often
              occurs in abundance in lake phytoplankton during the summer.
                    This cyanophyte comprised 100% of the sample and contained
              an excessively large biovol 'ume and density.   The corresponding
              chlorophyll-a concentration of 3,500 ug/l further confirmed the
              severity of the algal bloom.
                    Very high levels of nutrients were present fueling the algal
              growth.   Total nitrogen, total phosphorus and ammonia/ammonium
              measured 20.03, 1.5 and 0.29 mg/l, respectively.
                    There are two facilities with permitted discharges into
              Commscope Lake. One facility discharges cooling water, while
              Commscope Inc. discharges wastewater. According to Commscope's
              self monitoring reports, this company has had numerous standards
              violations during the past year.



              Total Biovolume   = 1,051,475 mm3/m3
              Total Density     = 38,829 units/ml.
              Chlorophyll-a     = 3500 ug/1
              Algal Bloom       = Yes



















                                                 23








                  CHOWAN RIVER BASIN























































                           24







                         Chowan River (02053632, 02053652, Chowan-9), Bertie County
                         Sampled by M. Yount, K. Cratch            900612         1040


                         Algal samples were collected after green flecks were observed
                 in the water column. Samples collected from Colerain (02053632),
                 Edenhouse (02053652) and from near channel marker #9 above
                 Colerain contained very little algal growth along with low
                 corresponding chlorophyll-a concentrations.

                         Chowan-9
                 Total Biovolume       = 305 mm3/m3
                 Total Density         =  1,001 units/ml.
                 Chlorophyll-a         =  4 ug/l
                 Algal Bloom           =  No

                         02053632
                 Total Biovolume       =  279 mm3/m3
                 Total Density         =  681 units/ml.
                 Chlorophyll-a         =  2 ug/l
                 Algal Bloom           =  No


                         02053652
                 Total Biovolume       =  666 mm3/m3
                 Total Density         =  1,380 units/ml.
                 Chlorophyll-a         =  3 ug/l
                 Algal Bloom           =  No





                         Chowan River, Bertie, Chowan, Hertford Counties
                         Sampled by K. Lynch, B. Robinson                  900619        0950-1330


                       Water quality samples were collected from the Chowan River
                 and   its tributaries after large green flecks were reported in the river.
                 The   bloom was visible from the Edenhouse bridge to above Holiday
                 Island.    Field identification of the large flecks present near the"
                 surface confirmed the presence of Anacystis cyanea, a colonial
                 cyanophyte and Anabaena 12ortoricensis. a large filamentous
                 cyanophyte, both of which are commonly found in Chowan River
                 blooms.      Quantitative algal counts confirmed high phytoplankton
                 biovolume and density estimates from the Edenhouse bridge
                 upstream to Arrowhead Beach.



                                                           25











                          Arrowhead-I
                   Total Biovolume        = 11,656 mm3/m3
                   Total Density          =  13,695 units/ml.
                   Chlorophyll-a          =  15 ug/l
                   Algal Bloom            =  Yes

                          Catherine-I
                   Total Biovolume        =  5,330 mm3/m3
                   Total Density          =  5,066 units/ml.
                   Chlorophyll-a          =  24 ug/l
                   Algal Bloom            =  Yes


                          Chowan-14
                   Total Biovolume        =  3,034 MM3/m3
                   Total Density          =  5,401 units/Mi.
                   Chlorophyll-a          =  12 ug/l
                   Algal Bloom            =  No


                          Indian-2
                   Total Biovolume        =  3,390 mm3/m3
                   Total Density          =  5,590 units/ml.
                   Chlorophyll-a          =  I I ug/I
                   Algal Bloom            =  No

                          Rockyhock-I
                   Total Biovolume        =  6,857 mm3/m3
                   Total Density          =  10,307 units/ml.
                   Chlorophyll-a          =  12 ug/l
                   Algal Bloom            =  Yes


                          0205360615
                   Total Biovolume        =  1,684 mm3/rn3
                   Total Density          =  2,533 units/ml.
                   Chlorophyll-a          =  9 ug/l
                   Algal Bloom            =  No


                          02053632
                   Total Biovolume        =  3,475 mm3/m3
                   Total Density          =  4,076 units/ml.
                   Chlorophyll-a          =  10 UgA
                   Algal Bloom            =  No

                          0205363575
                   Total Biovolume        =  14,765 mm3/m3
                   Total Density          =  12,438 units/ml.
                   Chlorophyll-a          =  6 ug/I
                   Algal Bloom            =  Yes






                                                               26








                         02053652
                 Total Biovolume       = 11,552 mm3/m3
                 Total Density         = 8,860 units/ml.
                 Chlorophyll-a         = 6 ug/I
                 Algal Bloom           = Yes





                         Chowan River (02053652005), Chowan County
                         Sampled by S. Mitchell             900711


                        Algal samples collected on July 11 confirmed the presence of an
                 algal bloom dominated by the blue-green alga, Anabaena
                 12ortoricensis.

                 Total Biovolume       = 13,095 mm3/m3
                 Total Density         = 3,419 units/ml.
                 Chlorophyll-a         = not sampled
                 Algal Bloom           = Yes




                         Chowan River, Chowan County
                         Sampled by M. Yount                900712                1120-1345


                        On July 12, algal bloom samples were            collected from the mouth
                 of Bennetts Creek downstream to ambient               site 02053652, near
                 Edenhouse. Algal samples were collected as "surface grab samples"
                 (collected at 0.15 meters).        A blue-green algal bloom occurred from
                 Bennetts Creek to downstream near Colerain (02053632).                  Six of the
                 surface grab samples contained algal blooms and all were comprised
                 of over 93% cyanophytes by biovolume. The dominant species in
                 every sample was the blue-green alga, Anabaena portoricensis,
                 which is commonly found in eutrophic ponds, lakes, and slow flowing
                 rivers throughout the state.         The accompanying chlorophyll-a
                 concentrations ranged from 17 to 350 ug/l.

                         Catherine-7
                 Total Biovolume       = 32,805 mm3/m3
                 Total Density         = 8,122 units/ml.
                 Chlorophyll-a         = 3 5 0 ug/I
                 Algal Bloom           = Yes



                                                          27









                        Chowan-5
                 Total Biovolume       = 69,869 mm3/m3
                 Total Density         =  15,897 units/ml.
                 Chlorophyll-a         =  250 ug/l
                 Algal Bloom           =  Yes


                        Indian-8
                 Total Biovolume       =  23,698 mm3/m3
                 Total Density         =  6,551 units/ml.
                 Chlorophyll-a         =  200 ug/l
                 Algal Bloom           =  Yes


                        @02053632
                 Total Biovolume       =  31,330 mm3/m3
                 Total Density         =  8,036 units/ml.
                 Chlorophyll-a         =  120 ug/l
                 Algal Bloom           =  Yes


                        02053652
                 Total Biovolume       =  3,335 mm3/m3
                 Total Density         =  1,910 units/ml.
                 Chlorophyll-a         =  17 ug/l
                 Algal Bloom           =  No


                        Bennetts
                 Total Biovolume       =  22,603 mm3/m3
                 Total Density         =  6,521 units/ml.
                 Chlorophyll-a         =  270 u0l
                 Algal Bloom           =  Yes



                        Indian Creek, Chowan County
                        Sampled by K. Miller                900726                1505


                       On July 26, Washington regional personnel surveyed the
                 Chowan River after receiving reports of algal blooms. Because of
                 northeast winds, much of the reported blooms had been dispersed.
                 Surface grab samples collected from Indian Creek because of a
                 visible surface bloom were comprised of cyanophytes (Anabaena
                 12ortoricensis) and cryptophytes (Cryptomonas erosa, Chroomonas
                 minuta and C. caudata . An elevated chlorophyll-a of 35 ug/l
                 accompanied the sample.

                 Total Biovolume       = 7,142 mm3/m3
                 Total Density         = 3,474 units/ml.
                 Chlorophyll-a         = 35 ug/l
                 Algal Bloom           = Yes



                                                           28








                        Chowan River (02053632, 02053652, Chowan-Rock),
                        Chowan, Bertie Counties
                        Sampled by M. Yount, K. CTatch                    900802        1110


                       The blue-green algal bloom persisted and was again sampled on
                 August 2, during ambient monitoring. Three samples were collected,
                 from Colerain (02053632), from near Rockyhock Landing (Chowan-
                 Rock), and from the Edenhouse bridge (02053652). The three
                 samples contained bloom levels of algae and were again dominated
                 by greater than 87% cyanophytes (Anabaenaportoricensis).
                 Cryptophytes (Cryl2tomonas erosa and Chroomonas minuta) were also
                 codominant, by density.
                       While the two ambient samples (02053632 and 02053652)
                 were collected from the photic zone (approximately one meter) using
                 a labline, Chowan-Rock was collected as a "surface grab sample"
                 'resulting in- higher phytoplankton numbers and chlorophyll-a values.
                 Likewise, the corresponding chlorophyll-a sample for this station
                 measured 100 ug/l.



                        02053632
                 Total Biovolume       = 5,179 mm3/m3
                 Total Density         = 2,180 units/ml.
                 Chlorophyll-a         = 14 ug/l
                 Algal Bloom           = Yes

                        02053652
                 Total Biovolume       = 6,245 mm3/m3
                 Total Density         = 2,725 units/ml.
                 Chlorophyll-a         = 16 ug/l
                 Algal Bloom           = Yes

                        Chowan-Rock
                 Total Biovolume       = 10,923 mm3/m3
                 Total Density         = 2,306 units/ml.
                 Chlorophyll-a         = 100 Ug/l
                 Algal Bloom           = Yes











                                                          29








                        Chowan River (Chowan-3), Bertie County
                        Sampled by M. Yount, K. Cratch                     900912        1030


                       On September 12, algal samples were collected from the
                 western shore of the Chowan River, near Mount Gould Landing when
                 bright green flecks appeared in the water.             Again, the blue-green
                 algae, Anabaena portoricensis and Anacystis c-v-anea dominated along
                 with the chloromonadophyte, Vacuo aria virescens. An
                 accompanying chlorophyll-a concentration of 370 ug/l confirmed the
                 algal bloom conditions.


                        Chowan River (02053632, 0205360615, 02053574),
                        Bertie County
                        Sampled by M. Yount, K. Cratch                     901016        1030-1125


                       On October 16, during ambient sampling,             green flecks in the
                 water column were found to be the blue-green              algae, Anacystis
                 cyanea and Anabaena subcylindrica. Although the algal growth was
                 observed from above Holiday Island to downstream near Colerain,
                 only the uppermost station, 02053574, contained bloom levels of
                 algae dominated by cyanophytes and the chloromonadophytes,
                 Gonystomum semen and Vacuolgria virescens. Chlorophyll-a
                 concentrations were low, ranging from 4 to 6 ug/l.

                        02053574
                 Total Biovolume       = 5,109 mm3/m3
                 Total Density         = 699 units/ml.
                 Chlorophyll-a         = 6 ug/l
                 Algal Bloom           = Yes

                        0205360615
                 Total Biovolume       = 1,388 mm3/m3
                 Total Density         = 256 units/ml.
                 Chlorophyll-a         = 4 ug/l
                 Algal Bloom           = No

                        02053632
                 Total Biovolume       = 3,652 mm3/m3
                 Total Density         = 1,077 units/ml.
                 Chlorophyll-a         = 6 ug/l
                 Algal Bloom           = No




                                                          30









                       LITTLE TENNESSEE RIVER BASIN










































                                    31







                      Santeetlah Lake, Graham County
                      Sampled by C. Smith              900620       1000


                      An algal bloom sample was taken in        response to complaints of
                pea-green water at. the Little Buffalo Creek arm of Santeetlah Lake.
                Elevated algal populations along with a moderately high chlorophyll-
                a concentration confirmed algal bloom conditions.         Cyanophytes
                dominated the algal sample with Anabaena portoricensis, a large
                filamentous alga, and Anacystis cyanea, a colonial alga, dominating
                the biovolume and density estimates. Both algal species commonly
                form blooms in warm, nutrient enriched waters.
                      Several trout farms located on Little Buffalo Creek may be
                contributing nutrients to which the phytoplankton were responding.



                Total Biovolume    = 10,780 mm3/m3
                Total Density.     = 2,482 units/ml.
                Chlorophyll-a      = 27 ug/l
                Algal Bloom        = Yes
































                                                      32








                   LUMBER RIVER BASIN


















































                           33







                      Echo Lake, Moore County
                      Sampled by R. McLamb            900227       1100


                      Phytoplankton, chlorophyll-a and nutrient data were collected
               from four sites on Echo Lake after the lake manager expressed
               concern about greenish colored water. Echo Lake is one of 'Seven
               Lakes', a recreational and residential complex.
                      The phytoplankton sample from station #1 near the boat ramp
               was analyzed and contained typical seasonal phytoplankton
               assemblages. Very low numbers of algae were found in the sample
               along with low chlorophyll-a concentrations ranging from 1 to 2 ug/l
               at all stations, indicating very little algal growth.
                      Nutrient concentrations were analyzed and were not found to
               be excessively high, although wintertime nutrient levels are
               generally higher, as phytoplankton populations are supressed and
               are not utilizing nutrients.   Total nitrogen concentrations ranged from
               0.45 to 0.92 mg/l while total phosphorus ranged from below the
               detection limit to 0.02 mg/l at the four sites.



               Total Biovolume    = 70 mm3/m3
               Total Density      = 934 units/ml.
               Chlorophyll-a      = I UgIl
               Algal Bloom        = No
























                                                   34








                     Lake Pinehurst, Moore County
                     Sampled by M. Jaynes          900718



                    Water quality samples were collected from three stations on
               Lake Pinehurst during a complaint investigation because of
               suspected leaking septic tanks.
                    A quantitative algal count was conducted on LP-I, the station
               located nearest to the dam.    Typical lake phytoplankton assemblages
               were found in the sample including chlorophytes, dinoflagellates,
               chloromonadophytes, chrysophytes and cryptophytes.       The sample's
               total biovolume and density estimates were low and were not
               representative of algal bloom conditions.
                    Low nutrient    levels and corresponding chlorophyll-a
               concentrations (2-4 ug/1) collected from the three stations reflected
               the oligotrophic condition of Lake Pinehurst.



               Total Biovolume   = 710 mm3/m3
               Total Density     = 833 units/ml.
               Chlorophyll-a     = 3 ug/l
               Algal Bloom       = No




























                                                 35










                       NEUSE RIVER BASIN























































                           36






                               Garner Farm Pond, Wake County
                               Sampled by K. Lynch 900228                1530


                        A small farm pond which drains a large portion of Garner's
                 wastewater spray irrigation system was sampled to assess its trophic
                 condition.    The owner had expressed concern that excessive runoff
                 during 1989 had adversely affected his pond.
                        Physical measurements including conductivity, water
                 temperature, dissolved oxygen and pH levels all fell within normal
                 ranges.
                          The sample was comprised of several classes of phytoplankton,
                 predominately Euglenophyceae (61%), Chloromonadophyceae (20%),
                 and Cryptophyceae (13%). Such high numbers of euglenoids
                 (Eu glen oph yceae) often indicate organic enrichment. The pond was
                 found to contain an elevated algal biovolume particularly for winter
                 sampling.
                        The accompanying chlorophyll-a concentration of 130 ug/l was
                 elevated, reflecting excessive algal growth.


                 Total Biovolurne     = 8,306 mm3/m3
                 Total Density        = 4,944 units/ml.
                 Chlorophyll-a        = 130 ug/l
                 Algal Bloom          = Yes





                        Gobble Pond,Wake County
                        Sampled by S. Mitchell             900315        0930


                        A small farm pond was sampled after the pond's owners
                 expressed concern because of excess filamentous growth covering
                 about one half of the pond. Filamentous green algae including
                 Spirogyra species and MicroSj2OTa species were apparently
                 responding to fertilizer that had washed down from an upstream
                 pond. Both algal species are seasonal and inhabit quiet waters of
                 ponds and lakes, often forming large mats. The chlorophyll-a
                 concentration of 17 ug/l was moderate.





                                                          37








                        Lake Wendell (WNDL-D2), Johnston County
                        Sampled by G. Price                 900705               1010


                      Lake Wendell was sampled because of greenish colored water
                 and the presence of algal mats. Elevated dissolved oxygen (15.9
                 mgA) and pH levels measured on the water's surface at 10:10 in the
                 morning also signified algal bloom conditions.
                      A massive bloom of cyanophytes which comprised over 96% of
                 the sample's biovolume and density was found. Anabaena spiroides
                 contracta was the dominant cyanophyte present while other buoyant
                 blue-greens such as Aphanizomenon flos-aauae and Anacystis
                 cyanea were also included in the sample. These species are
                 indicative of nutrient enrichment.
                      Similar blue-green blooms have been documented in past
                 summers (1989 and 1987) with high accompanying chlorophyll
                 levels ranging from 130 to 230 ug/l.
                      Excessive nutrients were present with total nitrogen and total
                 phosphorus concentrations reaching 5.1 and 0.39 mg/l, respectively.
                 Until nutrient inputs from the upstream discharger are controlled,
                 algal blooms will continue to plague Lake Wendell.
                        The town of Wendell is studying alternative sites for their
                 wastewater treatment plant discharge which currently discharges
                 into Buffalo Creek, upstream of Lake Wendell.

                 Total Biovolume       = 58,404 mm3/m3
                 Total Density         = 13,014 units/ml.
                 Chlorophyll-a         = 270 ug/l
                 Algal Bloom           = Yes




                        Vet School     Pond,Wake County
                        Sampled by     S. Mitchell, R. Ferrell, J. Overton 900812              1100


                        Algal samples were collected following a fish kill at the          NCSU
                 vet school involving sunfish, bass and carp.            Phytoplankton      analyses
                 and high accompanying chlorophyll-a levels confirmed a blue-green
                 surface bloom of Anacystis ayanea (station VS-1) with euglenophytes
                 (Trachelomonas spp.), g
                                               re n and blue-greens found at 0.15 meters.
                 Nearly anoxic conditions present below the surface by 11:00 a.m.



                                                          38







                  suggested that oxygen was even further depleted in the evening
                  hours during phytoplankton respiration.           These low dissolved oxygen
                  levels could have contributed to the fish kill.


                         VS-1
                  Total Biovolume      = 96,001 mm3/m3
                  Total Density        =  61,722 units/ml.
                  Chlorophyll-a        =  4,800 ug/l
                  Algal Bloom          =  Yes

                         VS-2
                  Total Biovolume      =  38,055 mm3/m3
                  Total Density        =  24,339 units/ml.
                  Chlorophyll-a        =  140 ug/l
                  Algal Bloom          =  Yes

                         VS-3
                  Total Biovolume      =  15,001 mm3/m3
                  Total Density        =  18,459 units/ml.
                  Chlorophyll-a        =  88 ug/l
                  Algal Bloom          =  Yes




                         Eno River,,Durham County
                         Sampled by E. Williams                     900821               1100


                        Two algal bloom samples were collected from the Eno River
                  after visible surface scums were observed.             Flourescent green flecks
                  were present near the confluence of the Eno and the Flat Rivers
                  (station Eno-1) while the Eno River near the headwaters of Falls Lake
                  (Eno-2) contained reddish surface flecks.           Both samples exhibited
                  algal bloom conditions consisting of greater than 80% euglenophytes
                  by biovolume. Euglenophytes commonly cause surface scums of
                  varying colors as observed here. Large numbers of this type of algae
                  often signify organic enrichment.
                       Corresponding chlorophyll-a concentrations at both sampling
                  locations were high, indicating excessive algal growth.              Nutrient
                  levels were somewhat elevated, even with the high algal growth.


                         ENO-I
                  Total Biovolume      = 30,120 mm3/m3
                  Total Density        = 6,580 units/ml.
                  Chlorophyll-a        = 250 ug/I
                  Algal Bloom          = Yes



                                                           39










                         ENO-2
                  Total Biovolume      = 30,325 mm3/m3
                  Total Density        = 6,359 units/ml.
                  Chlorophyll-a        = 83 ug/1
                  Algal Bloom          = Yes





                         Falls Reservoir (NIEU010), Granville County
                         Sampled by K. Trumbower                    900912                 1240


                       Red and greenish colored water was observed at upper Falls
                  Reservoir near ambient station NEU010. The sample contained a
                  bloom of predominately euglenophytes and cyanophytes while
                  chlorophytes and cryptophytes were also abundant.                 The
                  euglenophytes, Euglena species C and Trachelomonas spp, were
                  probably responsible for the discolored water.             The dominant
                  cyanophyte, Merismopedia tenuissima, forms plate-like colonies and
                  has also been associated with greenish waters. Although nutrient
                  levels were not excessively high, the corresponding chlorophyll-a
                  concentration of 33 ug/1 was elevated, supporting algal bloom
                  conditions at upper Falls Reservoir.

                  Total Biovolume      = 5,271 mm3/m3
                  Total Density        = 12,578 units/ml.
                  Chlorophyll-a        = 33 ug/l
                  Algal Bloom          = Yes




                         Hart Pond,    Granville County
                         Sampled by R. Hiers                900926                1030


                         Hart Pond was sampled several weeks after a large bloom was
                  reported.    Several thousand caged catfish died while            other free
                  swimming fish survived. The phytoplankton sample                  from Hart Pond
                  contained a large filamentous cyanophyte, Anabaena portoricensis,
                  which had previously covered the pond's surface.              It  is likely that
                  anoxic conditions caused by deteriorating algal mats              and evening
                  algal respiration contributed to the suffocation of the catfish.



                                                          40








                        Bay River Area, Pamlico County
                        Sampled by K. Miller, C. Wilson            900315         1200-1615


                        Algal bloom samples were collected from five stations on
                 tributaries to the Bay River because of elevated surface DO .(up to
                 17.7 mg/1) and pH levels. Suspended particles were also apparent in
                 the water column.        All stations except Vandemere-8 contained algal
                 bloom levels of a common winter dinoflagellate, Prorocentru
                 minimum. This algae was most likely responsible for the observed
                 suspended flecks as well as the elevated chlorophyll-a levels.




                        Alligator-5
                 Total Biovolume       = 35,788 mm3/m3
                 Total Density_        = 33,191 units/ml.
                 Chlorophyll-a         = 140 ug/l
                 Algal Bloom           = Yes

                        Chappel-7
                 Total Biovolume       = 12,178 mm3/m3
                 Total Density         = 13,364 units/ml.
                 Chlorophyll-a         = 71 ug/l
                 Algal Bloom           = Yes

                        Racoon-2
                 Total Biovolume       = 7,414 mM3/M3
                 Total Density         = 11,005 units/ml.
                 Chlorophyll-a         = 56 ug/l
                 Algal Bloom           = Yes

                        Trent- I
                 Total Biovolume       = 25,910 mm3/m3
                 Total Density         = 24,980 units/ml.
                 Chlorophyll-a         = 110 Ug/I
                 Algal Bloom           = Yes

                        Vandemere-8
                 Total Biovolume       = 1,414 mm3/m3
                 Total Density         = 1,834 units/ml.
                 Chlorophyll-a         = 7 ug/l
                 Algal Bloom           = No








                                                          41








                         Neuse River (NEU139), Pamlico County
                         Sampled by A Yount                  900319        1305


                         Elevations in surface pH (8.8) and DO (12.0 mg/1)
                 concentrations led to the sampling of this algal bloom.              The algal
                 sample was dominated by cool weather dinoflagellates
                 (Prorocentrum minimum, and Heterocal2sa triguetra) and
                 bacillariophytes (Skeletonema potamos and Cyclotella species 3).
                         The elevated biovolume, density and chlorophyll-a
                 concentration confirmed algal bloom conditions.

                 Total Biovolume       = 4,954 mm3/m3
                 Total Density         = 19,128 units/ml.
                 Chlorophyll-a         = 140 ug/l
                 Algal Bloom           = Yes




                         Neuse River (NEU131X, NEU139), Pamlico County
                         Sampled by M. Yount, K. Cratch               900524      1240-1305


                         Algal bloom samples were collected during ambient monitoring
                 because of high pH (8.7) and DO concentrations (9.6-10 mg/1). Both
                 samples were dominated by dinoflagellates and cryptophytes, while
                 NEU139 also contained an abundance of bacillariophytes. The upper
                 station, NEU131X, exhibited a higher algal biovolume estimate and
                 chlorophyll-a concentration.

                         NEU131X
                 Total Biovolume       = 4,710 mm3/m3
                 Total Density         =  11,049 units/ml.
                 Chl6rophyll-a         =  120 ugA
                 Algal Bloom           =  Yes

                         NEU139
                 Total Biovolume       =  1,044 mm3/m3
                 Total Density         =  11,398 units/ml.
                 Chlorophyll-a         =  25 ug/I
                 Algal Bloom           =  Yes







                                                           42







                        Neuse River (NEU131F, 02092586), Craven County
                        Sampled by M. Yount, K. Cratch               900627


                        Two algal samples collected because         of high   pH (8-8.3) and DO
                 concentrations (9-9.8 mg/1) were found to           be algal blooms. The
                 uppermost station, NEU131F, contained a            high density of a common
                 bacillariophyte, Cyclotella species 3. At           station 02092586, an
                 xanthophyte, Olisthodiscus carterae, dominated biovolume and
                 density estimates by greater than 70%.

                        NEU131F
                 Total Biovolume       = 1,066 mm3/m3
                 Total Density         = 10,365 units/ml.
                 Chlorophyll-a         = 16 ug/I
                 Algal Bloom           = Yes

                        02092586
                 Total Biovolume       = 13,190 mm3/m3
                 Total Density         = 27,077 units/ml.
                 Chlorophyll-a         = 27 'ug/I
                 Algal Bloom           = Yes





                        Oriental's WWTP Lagoon, Pamlico County
                        Sampled by D. Denton                900718                1240


                      The town of Oriental's wastewater treatment plant lagoon was
                 sampled because of greenish colored water.               Treatment plant
                 personnel had expressed concern because the treatment plant has
                 had problems in the past with non-compliance. The algal sample was
                 dominated by chlorophytes and cyanophytes.                The dominant species,
                 Chlorella species 2, a chlorophyte, and Anabaenopsis raciborskii, a
                 cyanophyte, are typical of enriched waters and would be expected in
                 a wastewater treatment lagoon.           Moreover, the elevated biovolume,
                 density and chlorophyll-a concentration are indicative of high algal
                 growth.

                 Total Biovolume       = 13,773 mm3/m3
                 Total Density         = 19,041 units/ml.
                 Chlorophyll-a         = 90 Ug/I
                 Algal Bloom           = Yes



                                                          43








                         Neuse River (NEU131X, NEU139, NEU131F),
                         Pamlico, Craven Counties
                         Sampled by M. Yount, K. Cratch             900724         1310,
                         900725         1015



                         Algal bloom samples were collected during ambient monitoring
                  because of high pH (8.3-8.7) and DO concentrations (8.7-9.5 mg/1).
                  The three stations were dominated by dinoflagellates, cryptophytes,
                  and a small blue green alga, Phormidium angustissima which is
                  commonly found in North Carolina estuaries. Stations NEU139 and
                  NEU131F also contained an abundance of bacillariophytes (Cyclotella
                  species 3). Although station NEU131F did not reflect high levels of
                  algal populations, the chlorophyll-a concentration of 34 ug/l was
                  elevated so that it was considered to be an algal bloom.

                         NEU131X
                  Total Biovolume       = 2,957 mm3/m3
                  Total Density         = 18,779 units/ml.
                  Chlorophyll-a         = 23 ug/I
                  Algal Bloom           = Yes

                         NEU139
                  Total Biovolume       = 8,868 mm3/m3
                  Total Density         = 12,578 units/ml.
                  Chlorophyll-a         = 21 ug/I
                  Algal Bloom           = Yes

                         NEU131F
                  Total Biovolume       = 2,438 mm3/m3
                  Total Density         = 3,756 units/ml.
                  Chlorophyll-a         = 34 ug/I
                  Algal Bloom           = Yes



                         Neuse River     near Flanner Beach (Neuse-12), Craven County
                         Sampled by L. Biles, K. Cratch             900817


                         Algal samples were collected following a fish kill which
                  occurred the previous day. During sampling, a salt wedge was
                  evident with higher salinity measurements and nearly anoxic DO
                  concentrations on the river bottom.           Moderate numbers of typical
                  brackish water phytoplankton were found.



                                                            44








                 Total Biovolume       = 1,046 MM3/m3
                 Total Density         = 3,052 units/ml.
                 Chlorophyll-a         = 13 ug/l
                 Algal Bloom           = No



                        Neuse River at Green Springs, Craven County
                        Sampled by M. Yount, K. Cratch             900827         1140


                       Algal samples were collected from the Neuse River downstream
                 of the Trent River after 'complaints of raw sewage in the river. The
                 complainant runs Green Springs, a children's summer camp, and
                 expressed concern since the children usually swim in the river.
                 Three algal samples were collected from around the swimming area.
                 Elevated algal densities ranging from 13,975 to 36,102 units/ml
                 were found while algal biovolumes ranged from 2,223 to 11,984
                 mm3/m3. Olisthodiscus carterae, an xanthophyte, and Chroomonas
                 minuta, a cryptophyte, were dominant throughout the three samples.
                 Even with the elevated algal growth, high levels of total phosphorus
                 were found ranging from 0.20 to 0.32 mg/l. Chlorophyll-a
                 concentrations were somewhat elevated.
                      Previous sampling for fecal coliforms revealed fecal counts as
                 high as 84,000/100 ml upstream in the Trent River. Although an
                 exact source of pollution has not been determined, leaking septic
                 tanks, waste water treatment plants, or runoff from the James City or
                 New Bern area are possible culprits.

                        GREEN SPRINGS-A
                 Total Biovolume       = 2,223 mm3/m3
                 Total Density         = 13,975 units/ml.
                 Chlorophyll-a         = 29 ug/I
                 Algal Bloom           = Yes

                        GREEN SPRINGS-B
                 Total Biovolume       = 11,278 mm3/m3
                 Total Density         = 36,102 units/ml.
                 Chlorophyll-'a        = 26 ug/l
                 Algal Bloom           = Yes

                        GREEN SPRINGS-C
                 Total Biovolume       = 11,984 mm3/m3
                 Total Density         = 35,170 units/ml.
                 Chlorophyll-a         = 5 1 Ug/l
                 Algal Bloom           = Yes



                                                           45








                        Neuse River near New Bern, Craven County
                        Sampled by M. Yount, B. Adams               900916        1630-1845


                       Algal samples were collected from the Neuse River near the
                 mouth of the Trent River in response to a menhaden fish kill. High
                 pH and DO concentrations were found at all the stations.
                 Bacillariophytes, cryptophytes, and small cyanophytes were
                 dominant at most stations, with the bacillariophytes, Cyclotella spp.
                 contributing to the algal high densities.




                        NEUSE-2
                 Total Biovolume       = 5,409 mm3/m3
                 Total Density         =  66,381 units/ml.
                 Chlorophyll-a         =  25 ugA
                 Algal Bloom           =  Yes

                        NEUSE-4
                 Total Biovolume       =  4,960 mm3/m3
                 Total Density         =  90,488 units/ml.
                 Chlorophyll-a         =  25 ug/I
                 Algal Bloom           =  Yes

                        NEUSE-7
                 Total Biovolume       =  10,416 mm3/m3
                 Total Density         =  84,898 units/ml.
                 Chlorophyll-a         =  22 ug/l
                 Algal Bloom           =  Yes






















                                                           46








                        Neuse River (02092162, NEU131F, NEU131X), Craven County
                        Sampled by M. Yount, K. CTatch             900925, 900926        1000-1310


                        Algal bloom samples were collected during ambient monitoring
                 because of high pH (8.3-8.7) and DO concentrations (10.0-10.5 mg/1).
                 The three stations were dominated in density by the
                 bacillariophytes, Cyclotella spp. Other dominant -algae included
                 typical brackish water phytoplankton such as dinoflagellates and
                 small cyanophytes.       While elevated algal densities occurred at all
                 stations, highest chlorophyll-a levels were found at the two most
                 upstream stations, 02092162 and NEU131F.




                        02092162
                 Total Biovolume       = 2,485 mm3/m3
                 Total Density         = 45,419 units/mi.
                 Chlorophyll-,a        = 39 ug/l
                 Algal Bloom           = Yes

                        NEU131F
                 Total Biovolume       = 19,670 mm3/m3
                 Total Density         = 129,967 units/ml.
                 Chlorophyll-a         = 53 ug/l
                 Algal Bloom           = Yes

                        NEU131X
                 Total Biovolume       = 5,474 mm3/m3
                 Total Density         = 172,591 units/ml.
                 Chlorophyll-a         = 16 ug/l
                 Algal Bloom           = Yes




















                                                          47








                        Mill Creek on the Neuse River, Pamlico County
                        Sampled by L. Biles                 901204                1400


                      Algal bloom samples were collected from Mill Creek on the
                 northern shore of the Neuse River because of reddish colored water,
                 The sample contained a bloom dominated in biovolume by
                 Prorocentrum minimum., a common dinoflagellate which proliferates
                 during cool weather and causes reddish colored water.                By density
                 estimates, a ubiquitous cryptophyte, Chroomonas minuta also
                 dominated both samples..
                      The sample collected from the Camp Seafarers Marina (Mill Cr
                 Mar) contained excessive phytoplankton populations while the Mill
                 Creek sample contained a minor bloom. Even with the excessive
                 algal growth, elevated levels of total nitrogen (1.3 mg/1) and total
                 phosphorus (0.21 mg/1) were found at the marina.                 The chlorophyll-a
                 concentration from the marina was elevated at 140 ug/l while
                 chlorophyll-a measured in the creek was moderate at 17 ug/l.



                        Mill Cr-B
                 Total Biovolurne      = 7,776 mm3/m3
                 Total Density         = 9,549 units/ml.
                 Chlorophyll-a         = 17 ug/l
                 Algal Blooni          = Yes

                        Mill Cr Mar
                 Total Biovolume       = 88,369 mm3/m3
                 Total Density         = 79,133 units/ml.
                 Chlorophyll-a         = 140 ug/l
                 Algal Bloorn          = Yes



















                                                          48









                          PASQUOTANK RIVER BASIN














































                                  49







                   Albemarle Sound, Washington County
                   Sampled by M. Yount         900417           1220-1300


                   Filamentous algae were collected from fishermens nets in the
              Albemarle Sound for identification. The filaments were comprised of
              the green algae, Cladophora crystalling, Spirogyra species, Ulothrix
              species, and the filamentous bacillariophytes, Melosira varians and
              Fragillaria species. All species found are widely distributed and
              were likely responding to warmer weather and nutrient
              concentrations which had built up over the winter.





                   Albemarle Sound, Washington County
                   Sampled by L. Henry         900706


                   Tufts of algae were collected from the southern shore of the
              Albemarle Sound near Mackeys.    The filaments were identified as
              Tolyl2othrix species, a fresh water cyanophyte. Tolypothrix usually
              grows in small clumps and can be free floating or attached to
              submerged wood or rocks.





















                                              50









                         Kendricks Creek (02081185), Washington County
                         Sampled by K. Cratch                900712               0835


                       Algal bloom samples were collected from Kendricks Creek on
                 July 12, after green flecks were observed in the water column. A
                 bloom of Gonystomum semen, a large unicellular flagellate, belonging
                 to the class, Chloromonadophyceae, was found. This obscure class of
                 algae retains characteristics of both dinoflagellates and
                 euglenophytes.      This species commonly occurs in the Pasquotank
                 River basin, although usually not in such high numbers.
                 Gonystomurn is commonly found in bogs and ponds.
                       An elevated biovolume of 30,400 mm3/m3 and density of 2,032
                 units/ml was found. The high biovolume to low density ratio is
                 attributable to the large size of the dominant species which
                 comprised 97% of the biovolume.
                      Nutrient analyses revealed moderate levels of total nitrogen
                 (0.62 mg/1) and elevated levels of total phosphorus (0.15 mg/1).
                 Although a chlorophyll-a sample was not collected, it is likely that
                 the corresponding chlorophyll would have been high as
                 chloromonadophytes have been associated with high levels of
                 chlorophyll-a in the past.

                 Total Biovolume       = 30,400 mm3/m3
                 Total Density         = 2,030 units/ml.
                 Chlorophyll-a         = not sampled
                 Algal Bloom           = Yes




                         Alligator River (0208117810), Tyrell County
                         Sampled by M. Yount, K. Cratch                    900820         1130


                         An elevated surface dissolved oxygen reading led to the
                 sampling of this algal bloom. A high density of Olisthodiscus
                 carterae a brackish water xanthophyte was found in the sample.

                 Total Biovolume       = 4,456 mm3/m3
                 Total Density         = 14,761 units/ml.
                 Chlorophyll-a         = 14 ug/l
                 Algal Blooni          = Yes




                                                           51










                     ROANOKE RIVER BASIN



















































                            52







                     Roanoke River, Washington County
                     Sampled by M. Yount          900314             1010


                     Reports of filamentous algae adhering to fisherman's nets were
               received from the lower Roanoke River. Although filamentous
               samples were not collected directly from the nets, quantitative
               samples were examined for filamentous growths.      Samples collected
               from Roanoke River ambient stations, 02081135, 0208114330, and
               02081141 on March 14, contained very little algae, however some
               filaments of Melosira italka tenuissima, a chain forming
               bacillariophyte, were found which may have been the stringy
               material that was described growing on fishermens nets.
                     Epiphytic growths of algae have been reported in other bodies
               of water bodies in North Carolina during early spring in past years.
               This same species of Melosira was found at the Roanoke River at San
               Souci (02081141) in late March, 1985. In addition, filamentous
               samples colleected from gill nets on the lower Cape Fear River in
               March 1986 contained filamentous growths of Melosira species.
                     It is likely that a combination of increased water temperatures
               and normal seasonal elevated nutrient concentrations spurred the
               filamentous algal growth.  Bacillariophytes such as Melosira are most
               commonly found during cool seasons such as fall and early spring.






















                                                 53









                      TAR-PAMLICO RIVER BASIN

























































                                  54









                    Greenville Utilities Impoundment, Pitt County
                    Sampled by J. Chadwick      900719, 901008


                    Algal samples were collected from Greenville Utilities
              Presettlement Impoundments for identification. Floating clumps of
              the filamentous cyanophyte, Lyngbya nana were the most prevalent
              species encountered. This species is usually found on submerged
              rocks and probably floated into the impoundment.




































                                               55







                         Chocowinity Bay, Beaufort County
                         Sampled by M. Yount                 900305         1030


                         A fresh water bloom of Skeletonema potamos, a chain-forming
                  bacillariophyte, occurred in Chocowinity Bay.             Several species of
                  cryptophytes were also prevalent in the sample.               The algal sample
                  was collected during routine monitoring when elevated surface pH
                  (8.7) and DO concentrations (13.0 mg/1) were detected.                 The elevated
                  corresponding chlorophyll-a concentration of 52 ug/l confirmed
                  bloom conditions.


                  Total Biovolume       = 17,393 mm3/m3
                  Total Density         = 26,028 units/ml.
                  Chlorophyll-a         = 52 ug/l
                  Algal Bloom           = Yes



                         Bath Creek     and vicinity, Beaufort County
                         Sampled by     J. Camp              900525         1127


                         Algal bloom samples were collected after reports of green
                  flecks in Bath and Back Creeks. The algal bloom comprised of
                  bacillariophytes (Cyclotella species 2), cryptophytes and
                  xanthophytes was most concentrated in Back Creek, a tributary to
                  Bath Creek.


                         Back Cr-92
                  Total Biovolume       = 6,085 mm3/m3
                  Total Density         = 30,046 units/ml.
                  Chlorophyll-a         = not sampled
                  Algal Bloom           = Yes


                         MBC   (mouth   of Bath Creek)
                  Total Biovolume       = 2,000 mm3/m3
                  Total Density         = 33,190 units/mI.
                  Chlorophyll-a         = not sampled
                  Algal Bloom           = Yes


                         MBB   (Bath Cr  between Back Cr and Pamlico R.)
                  Total Biovolume         641 mm3/m3
                  Total Density           10,132 units/ml.
                  Chlorophyll-a           not sampled
                  Algal Bloom             Yes



                                                            56











                        Pam-Bath Cr
                 Total Biovolume      = 1,897 mm3/m3
                 Total Density        = 28,474 units/ml.
                 Chlorophyll-a        = not sampled
                 Algal Bloom          = Yes



                        Pamlico River (02084534, -TAR057G, TAR057GO85, Choco-1),
                        Beaufort County
                        Sampled by A Yount, K. Cratch              900604         1035-1240


                        Elevated surface pH (8.7-8.9) and DO (9.4-10 mg/1)
                 measurements led to the collection of algal bloom samples from Bath
                 Creek (02084534), Chocowinity Bay (Choco-1) and from a transect
                 across the Pamlico River.           The four samples contained elevated algal
                 densities attributed to high numbers of small bacillariophytes,
                 Cyclotella spp. The samples were also dominated by chlorophytes,
                 dinoflagellates and cryptophytes, while Bath Creek contained a high
                 density of Olisthodiscus carterae, an xanthophyte, which likely
                 contributed to its elevated chlorophyll-a concentration of 34 ug/l.



                        TAR057G
                 Total Biovolume      = 9,955 mm3/m3
                 Total Density        =  46,641 units/ml.
                 Chlorophyll-a        =  23 ug/I
                 Algal Bloom          =  Yes


                        TAR057GO85
                 Total Biovolume      =  713 mm3/m3
                 Total Density        =  26,727 units/ml.
                 Chlorophyll-a        =  15 ug/I
                 Algal Bloom          =  Yes


                        02084534
                 Total Biovolume      =  13,577 mm3/m3
                 Total Density        =  88,217 units/ml.
                 Chlorophyll-a        =  34 ug/I
                 Algal Bloom          =  Yes


                        Choco-I
                 Total Biovolume      =  2,996 mm3/m3
                 Total Density        =  70,224 units/ml.
                 Chlorophyll-a        =  31 ug/I
                 Algal Bloom          =  Yes



                                                          57








                         Far Creek Canal near Englehard, Hyde County
                         Sampled by M. Vincent                      900612                1530


                         An algal sample was collected following a crab kill which had
                  occurred several days prior to sampling.            A bloom of bacillariophytes
                  (Cyclotella spp.) was present along with elevated surface pH and
                  dissolved oxygen concentrations.


                  Total Biovolume       = 5,780 mm3/m3
                  Total Density         = 97,126 units/ml.
                  Chlorophyll-a         = 25 ug/l
                  Algal Bloom           = Yes








                         Pamlico River (TAR057G), Beaufort County
                         Sampled by K. Miller, J. Camp               900718        1205


                         A bloom sample was collected across from Bath Creek in the
                  Pamlico River. A high DO concentration of 9.6 mg/l was noted at one
                  meter depth indicating that the most algal activity was occurring just
                  below the surface, possibly because of light inhibition at the water's
                  surface.    An algal bloom consisting of large dinoflagellates
                  (Gyrodinium uncatenuml Gyrodinium aureolum), and small
                  cyanophytes     (Phormidium angustissima) occurred in the Pamlico
                  River.     The  high chlorophyll-a concentration of 62 ug/l confirmed
                  algal bloom     conditions.
                         While    total nitrogen levels were moderate at 0.51 mg/l, total
                  phosphorous     was elevated at 0.65 mg/l.


                  Total Biovolume       = 6,602 mm3/m3
                  Total Density         = 7,017 units/ml.
                  Chlorophyll-a         = 62 ug/l
                  Algal Bloom           = Yes





                                                            58







                     Pamlico River at Washington Waterfront, Beaufort County
                     Sampled by D. Denton           900718      1615


                     An algal sample was collected from the Pamlico River on the
              waterfront in Washington in response to a citizen's complaint.
              Greenish colored water was observed along with elevated surface DO
              (12.0 mg/1) and pH (8.4) levels. The sample contained a blue-green
              bloom of Merismopedia tenuissirna, a colonial plate-forming algae
              that often tints the water a greenish color.   The plates of cells were in
              the process of disintegrating, and therefore were not quantitatively
              countable. M. tenuissima is commonly found in the plankton of fresh
              and brackish water.
                     The excessive chlorophyll-a concentration of 50 ug/l confirmed
              algal bloom conditions on the Washington waterfront.






                     Pamlico River, Beaufort County
                     Sampled by K. Miller, L. Tison       900724       1125-1540


                    On July 24, five algal bloom samples were collected from Ragged
              Point to downstream at Bayview, in response to a fish kill. Dead
              menhaden, flounder, hog chokers, and spot were observed and were
              most concentrated around Hawkins Landing on the northern shore of
              the river.
                    Supersaturated surface DO measurements were found at most of
              the five sampling sites.   Salinity and DO data illustrated the presence
              of a salt wedge at stations 4B and 7D with nearly anoxic conditions
              and higher salinity concentrations on the river bottom.
                    All five samples contained elevated phytoplankton growth and
              were considered to be algal blooms with the highest concentrations
              at Bayview (10E) and Hawkins Landing (2A). Dinoflagellates such as
              Peridinium trochoideum, Gymnod@inium aurantium, Gyrodinium
              uncatenum and small filamentous cyanophytes, Phormidiurn
              angustissima dominated the samples.
                    Elevations in chlorophyll-a and total phosphorus concentrations
              were found in all samples.




                                                   59











                         Pam-2A
                  Total Biovolume      = 21,354 mm3/m3
                  Total Density        =  29,347 units/ml.
                  Chlorophyll-a        =  20 ug/l
                  Algal Bloom          =  Yes


                         Pam-4B
                  Total Biovolume      =  3,739 MM3/m3
                  Total Density        =  11,412 units/ml.
                  Chlorophyll-a        =  27 ug/I
                  Algal Bloom          =  Yes


                         Pam-5C
                  Total Biovolume      =  13,414 MM3/m3
                  Total Density        =  21,225 units/ml.
                  Chlorophyll-a        =  20 ug/I
                  Algal Bloom          =  Yes


                         Pam-713
                  Total Biovolume      =  3,414 mm3/m3
                  Total Density        =  24,980 units/ml.
                  Chlorophyll-a        =  23 ug/l
                  Algal Bloom          =  Yes


                         Pam-IOE
                  Total Biovolume      =  36,260 mm3/m3
                  Total Density        =  25,675 units/ml.
                  Chlorophyll-a        =  85 ug/l
                  Algal Bloom          =  Yes




                         Pamlico River near River Acres, Beaufort County
                         Sampled by L. Tison                 900726


                         Reddish colored filamentous algae was collected for
                  identification from the northern shore of the Pamlico River near
                  River Acres. The algae was identified as Compsopo-gon coer leus, a
                  red alga belonging to the class, Rhodophyta. This species is common
                  to abundant in several creeks upstream of the Tar-Pamlico River
                  estuary and is usually found during summer and fall.                The branches
                  of this alga vary in color from violet to blue and green.





                                                           60








                         Pamlico River, Beaufort County
                         Sampled by K. Miller, J. Camp                 900801         1345-1645


                        Algal bloom samples were collected from Pungo Creek on
                  August 1, following fish and crab kills. Dead crabs were found in
                  pots near station Pungo Cr-8.           A salt wedge was apparent (usually at
                  2 meters depth) in Pungo Creek and on the Pungo River the day of
                  sampling.
                        The uppermost stations, (9 and 2) generally contained the
                  highest concentration of algal growth and corresponding chlorophyll-
                  a concentrations.
                        Dinoflagellates, cryptophytes and cyanophytes dominated all
                  samples.      Dinoflagellates including Peridiniurn trochoideum,
                  Gymnodinium. aurantium, Glenodiniurn danicans, Oxyrrhis marina
                  and Gyrodiniurn aureolurn comprised the majority of the biovolume,
                  while small cyanophytes (Phormidium. angustissima) and
                  cryptophytes (Chroomonas minuta) were common dominants by
                  density.



                         Pungo Cr-2
                  Total Biovolume       = 11,405 mm3/m3
                  Total Density         =  14,616 units/ml.
                  Chlorophyll-a         =  62 ug/I
                  Algal Bloom           =  Yes


                       . Pungo     Cr-5
                  Total Biovolume       =  2,559 mm3/m3
                  Total Density         =  12,985 units/ml.
                  Chlorophyll-a         =  28 ug/I
                  Algal Bloom           =  Yes

                         Pungo Cr-8
                  Total Biovolume       =  2,634 mm3/m3
                  Total Density         =  10,248 units/ml.
                  Chlorophyll-a         =  27 ug/I
                  Algal Bloom           =  Yes

                         Pungo     Cr-9
                  Total Biovolume       =  14,505 mm3/m3
                  Total Density         =  12,461 units/ml.
                  Chlorophyll-a         =  51 ug/l
                  Algal Bloom           =  Yes




                                                              61








                         Pamlico River at the mouth of Broad Creek
                         (02084519505), Beaufort County
                         Sampled by K. Miller, J. Camp              900802       1345-1645


                         An algal bloom sample was taken during an investigation of
                 deteriorating algal mats near the mouth of Broad Creek. No mats
                 were found during the investigation.           Algal biovolume and
                 chlorophyll-a were low, although the presence of small cyanophytes,
                 Phormidium angustissima, bacillariophytes, Cyclotella spp. and
                 chrysophytes contributed to an elevated algal density estimate.


                 Total Biovolume       = 1,394 mm3/m3
                 Total Density         = 13,844 units/ml.
                 Chlorophyll-a         = 8 ug/l
                 Algal Bloom           = Yes




                         Mouth of Broad Creek, Beaufort County
                         Sampled by J. Camp, A. Hodge               900815       1100


                         Aquatic vegetation that had washed up in the mouth of Broad
                 Creek was collected for identification.         The sample was identified as
                 Nitella species, a member of the division, Charophyta, more
                 commonly known as stoneworts or brittleworts.               Nitella is usually
                 found in shallow water, protected from wave action and strong
                 currents.




                         Pamlico River, Beaufort County
                         Sampled by J. Camp, M. Vincent             900827       1135-1230


                       Several algal bloom samples were collected from the Pamlico
                 River after fishermen reported dead crabs in pots upstream from
                 Core, Point, which is located near Durham Creek. Phytoplankton
                 samples were collected from Surnmerhaven on the north shore
                 (Summer-Al), Blounts Bay (Pamlico-5), and from the mouth of Bath
                 Creek (Pamlico-6).



                                                           62






                      All three samples contained 'bloom' levels of phytoplankton
                 growth with elevated algal densities.          In addition, Pamlico-5
                 contained an elevated biovolume of 15,517 mm3/m3 due to the
                 presence of a large dinoflagellate, Gymnodinium nelsonii. Other
                 species dominating the Blounts Bay sample include Cyclotella spp, a
                 bacillariophyte, and Phormidium angustissima, a small, filamentous
                 cyanophyte.     A high chlorophyll-a concentration of 60 ug/l
                 accompanied this bloom sample.
                      Downstream at the mouth of Bath Creek, dinoflagellates
                 (Peridinium trochoideum, Gvmnodinium aurantiurn . cyanophytes
                 (Phormidium angustissima) and cryptophytes (Chroomonas minuta)
                 were most prevalent.         The accompanying chlorophyll-a concentration
                 of 32 ug/l was indicative of increased algal activity.
                      At Summer-1, bacillariophytes (Cyclotella species 3),
                 cryptophytes (Cryl2tomonas erosa reflexa and dinoflagellates
                 (Gymnodinium species 3) dominated the sample. The dominant algal
                 species from these three samples are all commonly found in the
                 Pamlico River estuary.
                      Water chemistry collected at the two lower sites revealed high
                 concentrations of total phosphorus at Pamlico-5 (0.25 mg/1) and
                 Pamlico-6 (0.37 mg/1).        Total nitrogen concentrations were below 0.7
                 mg/l at both lower sites.       Dissolved oxygen and salinity data
                 indicated a salt wedge at the mouth of Bath Creek with a DO
                 measurement of only 1.2 mg/l at one meter depth. A salt wedge
                 which was probably more widespread previously, was most likely
                 responsible for the crab deaths.


                       Pamlico-5
                 Total Biovolume      =  15,517 mm3/m3
                 Total Density        =  47,515 units/mi.
                 Chloropbyll-a        =  60 ug/l
                 Algal Bloom          =  Yes


                       Pamlico-6
                 Total Biovolume      =  4,393 mm3/m3
                 Total Density        =  33,279 units/ml.
                 Chlorophyll-a        =  32 ug/1
                 Algal Bloom          =  Yes


                       Summer-Al
                 Total Biovolume      =  4,766 mm3/m3
                 Total Density        =  30,134 units/ml.
                 Chlorophyll-a        =  not sampled
                 Algal Bloom          =  Yes




                                                          63







                         Pungo Creek, Beaufort County
                         Sampled by J. Camp, L. Biles               900829         1524


                         A fish kill involving flounder, spot, silver perch and crabs was
                  observed in Pungo Creek on August 29. A salt wedge was again
                  apparent as surface DO was 9.5 mg/l, while at one meter, DO
                  measured 0.5 mg/l.        The phytoplankton sample was dominated               by
                  typical estuarine species, consisting of cyanophytes (Phormidium
                  angustissima), dinoflagellates (Peridinium trochoideum and
                  bacillariophytes (Cyclotella species 3). Total algal density reached
                  38,780 units/ml primarily because of the high number of small
                  cyanophytes.      The accompanying chlorophyll-a concentration was
                  indicative of an algal bloom.


                  Total Biovolume      = 2,375 mm3/m3
                  Total Density        = 38,780 units/ml.
                  Chlorophyll-a        = 31 ug/l
                  Algal Bloom          = Yes







                         Herring Run, Beaufort County
                         Sampled by K. Miller                901219        1540


                         Algal samples were collected because of            complaints of
                  discolored water.      A bloom of d inoflagel late s, euglenophytes and
                  cryptophytes was found.         The dominant dinoflagellate, Oxyhurris
                  marina may have been responsible for the observed yellow flecks in
                  the water column.


                  Total Biovolume      = 6,057 mm3/m3
                  Total Density        = 2,853 units/ml.
                  Chlorophyll-a        = 21 ug/I
                  Algal Bloom          = Yes








                                                            64








                  WHITE OAK RIVER BASIN



















































                           65







                  Little Northeast Creek (0209317585), Onslow County
                  Sampled by J. Gregson        901002


                 A phytoplankton sample  was collected for analysis from an
            ambient station in Little Northeast Creek after a salinity level of 7
            ppt. was discovered in this normally fresh water creek. The
            phytoplankton sample was comprised of chrysophytes and
            bacillariophytes. Dominant phytoplankton species include
            Ochromonas species, a chrysophyte, and Melosira varians, a large
            chain-forming bacillariophyte. Evidentally, these species tolerate low
            salinity waters.
                 The sample's algal biovolume and density were below the algal
            bloom threshold although an elevated chlorophyll-a concentration of
            44 ug/l accompanied the sample.    Nutrient analyses also revealed
            elevated levels of ammonia/ammonium (0.16 mg/1) and total
            phosphorus (0.24 mg/1).





























                                             66










                           YADKIN-PEE DEE RIVER BASIN




















































                                   67







                       Unnamed tributary to Dutchman Creek, Davie County
                       Sampled by S. Knight               900201         1500


                      Algal samples were collected from a stagnant pond because of                 a
                greenish hue.      Small phytoplankton populations consisting of
                bacillariophytes, chlorophytes, cryptophytes, euglenophy'tes and
                cyanophytes comprised the majority of the sample.               Low numbers        of
                phytoplankton and a moderately low chlorophyll-a concentration
                determined that this was not an algal bloom.

                Total Biovolume      = 82 mm3/m3
                Total Density        = 442 units/ml.
                Chlorophyll-a        = 16 ug/1
                Algal Bloom          = No






                       Hanes Ponds, Davie County
                       Sampled by S. Knight               900725         1130-1230


                      Water quality samples were collected           from two ponds because
                of a citizen's complaint that nearby sludge application had increased
                nutrient loading to the ponds.         The sludge    was apparently applied
                using standard procedures.         Surrounding land use is pastures,
                frequented by cows.
                      The downstream pond, Hanes-1, contained a bloom of
                Ankistrodesmus falcatus mirabilis, a chlorophyte, which comprised
                94% of the sample's density. Members of this genus are often found
                in abundance in still, quiescent waters.         Elevated algal density and a
                corresponding chlorophyll-a value of 80 ug/l further confirmed algal
                bloom conditions.
                      In addition, very high nutrient levels were found in Hanes-1.
                Total nitrogen, total phosphorus and ammonia/ammonium were 6.4,
                3.1, and 0.14 mg/l, respectively.
                      The upper pond, Hanes-2, contained many floating algal mats
                and a moderately low amount of phytoplankton growth.                  Similarly, a
                moderate chlorophyll-a concentration of 18 ug/l was found in Hanes
                -2.





                                                         68







                        Algal bloom conditions, the presence of numerous aquatic weeds
                  and very high nutrient levels in Hanes Pond-I illustrate the
                  eutrophic state of this pond.        Lush aquatic growth and floating algal
                  mats in Hanes-2 are also indicative of nutrient enrichment.                 Although
                  little rainfall had occurred in the past few months, intermittent
                  thunderstorms may have created nonpoint source runoff (either
                  from  -the livestock or from land application) which fueled the profuse
                  growth in the ponds.



                         Hanes- I
                  Total Biovolume      = 3,265 mm3/m3
                  Total Density        =  20,962 units/ml.
                  Chlorophyll-a        =  90 Ug/l
                  Algal Bloom          =  Yes

                          Hanes-2
                  Total Biovolume      =  2,684 mm3/m3
                  Total Density        =  1,922 units/ml.
                  Chlorophyll-a        =  18 Ug/l
                  Algal Bloom          =  No



































                                                            69








                                            SUMMARY


                    During 1990, the Biological Assessment Group received algal
              bloom reports from a diversity of waterbodies.   Algal blooms
              occurred in creeks, ponds, lakes, rivers, and estuaries.
                    A large portion (50%) of bloom reports occurred within the
              Washington Region. This region also has the largest number of
              ambient stations.  Furthermore, algal bloom coverage has increased
              on the Tar-Pamlico River and its tributaries because of the efforts of
              PERT (Pamlico Estuarine Response Team). Additional ambient
              sampling stations added within the Albemarle/Pamlico Estuarine
              Study area as part of the expanded ambient network have also
              increased coverage within this area.  The sampling schedule for the
              Albemarle/Pamlico estuarine area will be reviewed and possibly
              revised after 1991.
                    Dinoflagellate blooms were a common occurrence on the Neuse
              and Pamlico River estuaries as in past years. Dinoflagellates
              commonly found in brackish water blooms include Peridinium,
              Prorocentrum, Gymnodinium, and Gyrodinium spp. Small blue-
              greens such as Lyngbya and Phormidium spp. and diatoms including
              Cyclotella. and Skeletonerna often codominated. Algal blooms on the
              Neuse and Pamlico Rivers were often sampled as part of fish kill
              investigations, where hypoxia or low dissolved oxygen levels were a
              contributing factor to the fish kill. Low dissolved oxygen conditions
              often result when salinity stratified waters prevent vertical mixing
              of anoxic bottom waters. In the Pamlico River estuary, hypoxia was
              found to be short lived without serious consequences. (NCDEHNR,
              1990)
                   The Chowan River experienced a blue-green bloom beginning in
              June and extended intermittently through September.      The dominant
              algal species Anabaena spp. and Anacystis cvanea formed visible
              surface scums. The bloom mainly extended from above Holiday
              Island to as far as Edenhouse. Many slow moving tributaries to the
              Chowan also had thick surface growths of algae. Other major blue-
              green blooms last occurred on the Chowan in 1989, 1997 and 1983.
                    Eutrophic ponds and lakes in several river basins (Cape Fear,
              Catawba, Little Tennessee, Neuse, Tar-Pamlico, and Yadkin Pee-Dee)
              experienced blooms of cyanophytes, chIorophytes, or euglenophytes
              and exhibited elevated chlorophyll-a concentrations.   Non-point
              source runoff was thought to have precipitated algal  blooms in
              several of these ponds, lakes and creeks.
                    Blue-green algae continue to dominate Abbotts   Creek arm of
              High Rock Lake as in past years. Samples were not     quantitatively
              analysed this year since this arm has been identified as
              hypereutrophic, with no change in its trophic status.  Chlorophyll-a

                                                70






                concentrations, often used as a meausre of productivity, demonstrate
                continued high values at two stations on Abbotts Creek, Cottongrove,
                and Southmont.    Chlorophyll-a values measured from July through
                September averaged 48 ug/l at the two stations indicating algal
                bloom conditions.
                      Although not quantified, reports of filamentous algal growths
                were also documented in several river basins.     In the Pasquotank
                and Roanoke River basins, filamentous chlorophytes and
                bacillariophytes prompted complaints from fishermen as excessive
                algal growths were adhering to fishing nets.    Often filamentous algal
                growth is seasonal and occurs in responge to abundant nutrients.
                      One potentially toxic bloom occurred in the Atlantic Ocean off
                the coast of Wilmington. Oscillatoria ervthraea, a filamentous
                cyanophyte was collected by a fisherman after he noticed red
                patches in the water.  Toxins from this algae have been reported to
                kill marine mammals and fish although no deleterious effects were
                observed here.
                      Numerous benefits have stemmed from Biological Assessment's
                Algal Bloom Reporting Program.      Improvements in water quality
                have been reported from the 'phosphate detergent ban' which was
                initiated after blooms were documented statewide. This ban became
                effective January 1, 1988 and has been successful in reducing the
                quantity of phosphorus in N.C. surface waters (NCNRCD, 1989).
                      Other benefits derived from documentation of eutrophic water
                bodies include the "Nutrient Sensitive Waters" (NSW) designation,
                limiting nutrient inputs from industries and waste water treatment
                plants.  Within NSW watersheds, non-point source inputs are
                controlled by use of 'Best Management Practices' which are
                agricultural erosion control measures.  The Chowan, Neuse, and Tar-
                Pamlico River Basins and the B. Everett Jordan watershed in the Cape
                Fear River Basin are all designated NSW.
                      The New River watershed, near Jacksonville is protected under
                Administrative Code 15:2H 0404 statute, as a result of recurring
                blooms and a subsequent special study.     This statute gives the
                division director the powers to limit dischargers within this nutrient
                enriched watershed.
                      Several other special studies or projects were conducted as a
                result of recurring blooms.  Special studies were initiated on High
                Rock Lake (Yadkin-Pee Dee River Basin) and Lake Wylie (Catawba
                River Basin) after recurring algal blooms.    Increased sampling efforts
                including special studies and an expanded ambient network in the
                Neuse and Pamlico estuaries have resulted because of numerous
                blooms and signs of enrichment.     In addition, blue-green blooms in



                                                   71







             Santeetlah Lake (Little Tennessee River Basin) have led to special
             studies on trout farms and their subsequent impact on waterbodies.
                   In conclusion, the algal bloom monitoring network established
             in 1984 has served as important* water quality documentation
             statewide.  This system is useful for revising the ambient monitoring
             network, identifying sources of enrichment, identifying waterbodies
             or watersheds needing potential nutrient controls, and determining if
             algal blooms are actually responsible for the observed symptoms.





































                                              72







                                         RB@AERENCES



             Humm, Harold J. and Suzanne R. Wicks. 1980. Introduction and
                  Guide to the Marine Bluegreen Algae. John Wiley and Sons.
                  New York.


             North Carolina Department of Environment, Health and Natural
                  Resources. DEM, DMF. 1990. Pamlico Environmental Response
                  Team Report. Washington, N. C.

             North Carolina Department of Natural Resources and Community
                  Development. DEM. 1989 Water Quality Effects of the North
                  Carolina Phosphorous Detergent Ban. Draft.

             Smith, G.M. 1950. The Freshwater Algae of the United States. 2nd Ed.
                  McGraw Hill Book Co, Inc. New York.
































                                             73




                 APPENDIX 1.




                                                 ALGAL BLOOM REPORT FORM

               This form should be completed and sent to the D.E.M. Central Laboratory in Raleigh
               marked ATTENTION: Karen Lynch.                  Please send also a chlorophyll sample, and
               one fresh and one preserved algal sample.                       Nutrient samples are also helpful.
               One algal sample should be preserved with Lugol's solution at the rate of 2-3 ml. per
               500 ml of sample         (sample should be straw colored).          No special containers are
               required, however, 500 ml of sample is preferred. The phytoplankton and
               chlorophyll samples should be taken concurrently or from the same labline sample.
               Please call if there are questions          (733-6946).    Ask for Karen Lynch, Dianne Reid or
               Cherri   Smith.    Any one of these people can send you Lugol's solution and report
               forms   if your region needs more.

               LAKE, RIVER or STREAM:                                  COUNTY:                TOPO MAP#
               RIVER BASIN:                                        SAMPLER:
               DATE & TIME:

               DESCRIPTION        OF BLOOM: Draw or include a map to indicate exact location, nearest
               ambient station if applicable, and extent of coverage.                Also include visual
               observations ie. color, floating or in water column, filamentous or planktonic (can it
               be picked up by hand, little green balls, flecks, threadlike, etc.).                Is the water clear,
               dark, turbid, containing much suspended matter, etc?                    Ho-w are the present and
               recent     weather      conditions;      especially wind and rainfall.         Are there dead or
               struggling fish associated with the bloom"              Why was the sample taken? (ie. obvious
               bloom, fish kill, taste and odor problem, etc)







               PHYSICAL AND CULMICAL DATA
                                D.C.              pH                Temp.            Cond. (corr         Salinity
                                                                                    10.?5 2C) - - - - - - - - - - - - - - - -
                -@'U  4(fE - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
                 (.15 M.)
                 (1.0 M.)
                 (2.0 m.)
                 (3.0 m.)
                 (4.0 m.)
                 (5.0 rn.)
                 (6.0 rn.)


               Bottom     Depth? (m.)

               Please continue on additional sheet if necessary.

               DO NUTRIENT SAMPLES ACCOMPANY THIS SAMPLE? YES                               NO
               CHLOROPHYLL SAMPLE(S) TAKEN?                                       YES- NO

               OTHER CHEMICAL ANALYSIS





                                                                   74






                                                                                                          APPENDIX 2.               ALGAL BLOOMS 1984-1990

                  STUDY                                    STATION                 COUNTY                 RIVER BASIN               DATE         CHL-a BIOVOLUW DENSITY                               BLOW                                               FISH KILL?
                  B EVERETT JORDAN                         CPF055C                 CHATHAM                CAPE FEAR                 840709                                                           YES. 13LUE-GREENS
                  B. EVERETT JORDAN                        CPF0884A                CHATHAM                CAPE FEAR                 840709                                                           YES, 13LUE-GREENS
                  8. EVERETT JORDAN                        CPF055C                 CHATHAM                CAPE FEAR                 850613          38          8491             18080               YES, 13LUE-GREENS
                  B. EVERETT JORDAN                        CPF05SE                 CHATHAM                CAPE FEAR                 850613          33          1586             3649                YES, 13LUEGREENS
                  B. EVERETT JORDAN                        CPF055C                 CHATHAM                CAPEREAR                  850621          76          6529             149066              YES. BLUF-GREENS
                  B EVERETTJORDAN                          CPF055E                 CHATHAM                CAPE FEAR                 850621          86          1378             33889               YES, BLUE-GREENS
                  NORTHEAST CAPE FEAR 9) MT CLIVE          02107586                WAYNE                  CAPE FEAR                 850627                      19482            76164               YES. CRYPTOPHYTES. DINOFLAGELLATES

                  E.J. HORNE PRIVATE POND                                          CUMBERLAND             CAPE FEAR                 850905                      1091             12141               ND

                  LAKE BELOW IPI                                                   GUILFORD               CAPE FEAR                 860120                      7394             67167               YES@ PURE CHLAMYCOMONASCREENS
                  GREAT COHARIE CREEK                                              SAMPSON                CAPE FEAR                 860213                                                           NO. POLLEN ETC.
                  CAPE FEAR RIVER                          NRRIEIGELWOOD           COLUMBUS               CAPE FEAR                 860305                                                           NIA6 FILAMENTOUS MELOSIRA AND MMny FUNGUS
                  STOCKINGHEAD CREEK                       02107985                DUPLIN                 CAPE FEAR                 860505                                                           NA FILAMENTOUS SIPHONALES
                  ROBESONCREEK                             02097189                CHATHAM                CAPE FEAR                 860617          80          3331             13626               YES.CRYPTOPHYTES,BLU&GREENS
                  CAPE FEAR RIVER                          @ LOCK AND DAMSI        BLADEN                 CAPE FEAR                 860729          17          1504             2504                NO, BUT LOW DO.

                  ROSESLAKE                                                        CUMBERLAND             CAPE FEAR                 860807                                                           ND

                  ROBE9ONalEEK                             02097189                CHATHAM                CAPE FEAR                 860827          65          25538            152676              YES,CRYPT0PHYTESBLUEGREENS
            Ul
                  DOVEFIELD POND                           @)OAKLEY                NEWHANOVER             CAPE FEAR                 861126                                                           NO, BACTERIA

                  HODGE FARM POND                          HODQEFP                 RANDOLPH               CAPE FEAR                 870521                      1344             7468                NO, FISH KILL
                  ROGE90NCREEK                             02097189                CHATHAM                CAPE FEAR                 870603                      4642             12883               YES@ GREENS

                  ROBE9ONCREEK                             02097189                04ATHAM                CAPE FEAR                 871015          41          5399             17003               YES

                  ROSEBOROLN)OON                           ROMEICROO               SAMPSON                CAPE FEAR                 880218          NS          35103            286050              YES, GREENS

                  GREENFIELD LAKE                          GREENFIELD-I            NEWHANOVER             CAPE FEAR                 880428          0           157              419                 NO

                  GREENFIELD LAKE                          GREEWIELD-2             NEWHANOVER             CAPE FEAR                 880428          4           1437             1269                NO

                  GREENFIELD LAKE                          GREENFIELD-3            NEWHANOVER             CAPE FEAR                 880428          0           330              291                 NO

                  GREENFIELD LAKE                          GREENFIELD              NEW HANOVER            CAPE FEAR                 880501          NS                                               NIA FILAMENTOUS GREENS

                  LAKE RIM                                 LAKE RIM-1              CUMBERLAND             CAPE FEAR                 880525          NS          81136            16071               YES@ CHAYSOCROMULINA BREV                           -YES

                  TALLY POND                               TALLY-A                 CUMBERLAND             CAPE FEAR                 880601          6           1484             3653                NO

                  TALLY POND                               TALLY-13                CUM13ERLAND            CAPE FEAR                 880601          2           847              5808                N3
                  JORDAN LAKE                              CPF055C                 CHATHAM                CAPE FEAR                 880602          65          5357             48828               YES, 13LUE-GREENS MER TEN, PHOR ANG                 FEW (3)
                  JUMP AND RUN BRANCH                      JR-I                    BRUNSWICK              CAPE FEAR                 880719          5           111              419                 NO, FILAMENTOUS 13LUE-GREENS
                  STEWART POND                             STEWART-1               RANDOLPH               CAPE FEAR                 880913          460         145866           153724              YES@ EUGLEl4OPI-IYTFSGREENS                         YES

                  HOLT FARM POND                           HFP-1                   RANDOLPH               CAPE FEAR                 890531          23          1090             757                 ND

                  LAKE LYNWOOD                             LYNWOOD-I               GUILFORD               CAPEFEAR                  890606          230         13501            6987                YES. CYA

                  STEWART POND                             STEWART-I               RANDOLPH               CAPE FEAR                 900515          350         113537           73017               YES, TRAC VOL







                                                                                                             APPENDIX 2. ALGAL BLOOMS 1984-1990


                   STUDY                                    STATION                   COUNTY                 RIVER BASIN                DATE         CHL-a BIOVOLUME                   DENSITY              BLOOM                                                FISH KILL?

                   HIGH POINT RESERVOIRS                    CITY LAKE-1               GUILFORD               CAPE FEAR                  900705                       4464              17468                YES, CYA-ANABS RAC, ANAB LEV

                   HIGH POINT RESERVOIRS                    HIGH PT LAG-i             GUILFORD               CAPE FEAR                  900705                       63388             32142                YES, CHL-STAU, SCEN QUA

                   HIGH POINT RESERVOIRS                    OAK HOLLOW-1              GUILFORD               CAPE FEAR                  900705                       25ill             55200                YES. CYA-ANABS RAC, ANAB LEV

                   LATHAM LAKE                              MBN-02                    ALAMANCE               CAPE FEAR                  900710         21            1134              2811                 YES, FIL ALGAL MATS

                   DEEP RIVER IMPOUNDMENT                   DEEP-COL                  RANDOLPH               CAPE FEAR                  900711         28            3503              8245                 NO, BUT CHL-CARTERIA SP

                   ATLANTIC OCEAN                           ATLANITC OCEAN            BRUNSFWCK              CAPEFEAR                   900723                       N/A                                    FIL CYArOSCI ERYTHRAEA

                   ROCKY RIVER                              ROCKY-2A                  WAKE                   CAPE FEAR                  900726         44            1889              13451                YES. CHL, CRY, BAC

                   STEWART POND                             STEWART-I                 RANDOLPH               CAPE FEAR                  900802         6400          350745            85597                YES, CYA-ANAB SPI, APHA FLO, ANAC CYA

                   BACKGROUNDPOND                           BACKGRCUND-I              RANDOLPH               CAPE FEAR                  900802         37            10567             25854                YES, CHL,EUGBAC,CYA

                   ROCKY RIVER                              ROCKY-11                  WAKE                   CAPE FEAR                  900803         32            1662              6594                 YES, CHL, CRY, CHR

                   ROCKY RIVER                              ROCKY-2                   WAKE                   CAPEFEAR                   900803         44            1250              5590                 YES,CHR,CYA

                   STEWART POND                             STEWART-i                 RANDOLPH               CAPE FEAR                  900809         400           N/A                                    YES. CYA-ANAB SPI.CHL, EUG

                   ROSE90NCFM                               02097189                  CHATHAM                CAPEFEAR                   900813         23            3324              25854                YES. CYA, CHL, CRY. BAC

                   NEW HOPE CREEK                           02097314                  DURHAM                 CAPE FEAR                  900814         8             3211              5008                 NO, BUT CYA

                   LIT TO BIG ALAMANCE OR                   F L40SER POND             ALAMANCE               CAPE FEAR                  900821                       N/A                                    YES, CYA-ANAB POPI,SPI, BACTERIA
            -i
            0'1    LAKE CEDAR HOLLOW                        CEDAR HOLLOW              GUILFORD               CAPE FEAR                  900828                                                              YES, CYA-ANAB SUB, OSCI SP

                   JORDAN RESERVOIR                         CPF0811AIC                WAKE                   CAPEFEAR                   900913         74            102611            499604               YES, CYA ANAC Cyk OSCI GEM, CHLEUG



                   POPLIN POND                              POPLIN POND               UNION                  CATAWBA                    850619                       8231              1922                 YES, EUGLENOPHYTES

                   PRICEPOND                                PRICE POND                UNION                  CATAWBA                    850619                       40360             12752                YMEUGLENCIPHYTES

                   UNION POND                               UNIONPIOND                UNION                  CATAWBA                    850619                       2766              945                  YES@ EUGLENCIPHYTES

                   PRIVATE POND                                                       IREDELL                CATAWBA                    850621                                                              ID, BLUE-GREENS, DIATOMS

                   FREEDOM PARK LAKE                                                  MECKLENBURG            CATAWBA                    850822                       37722             1003751              YESBLUE-GREENS                                       YES

                   LAKE NORMAN                              LNI                       CATAW13A               CATAWBA                    851015         2400          16381             11529                YES. BLUE-GREENS

                   LAKE NORMAN                              U42                       CATAW13A               CATAWBA                    851015         8700          59283             27950                YES. 13LUE43REENS

                   LAKE NORMAN                              LN3                       CATAWBA                CATAWBA                    851015         1300          45010             22709                YES. 13LUE-GREENS

                   EASTFORK                                                           UNION                  CATAWBA                    660414                       21495             17935                YES, ENRICHED MATS OF ULOTHR N. SPIROGYRA

                   WAVERLYLAKE                              #1                        MECKLEWURG             CATAWBA                    860716         29            13782             21661                YES. 13LUE-GREENS

                   WAVERLY LAKE                             02                        MECKLENBURG            CATAW13A                   860716         110           100813            50485                YES. ELUE-GREENS

                   CHARLES FOWLER FARM POND                                           UNION                  CATAWBA                    860808         130           7026              15198                YES,ELrG.GREENS                                      YES

                   CATAWBA CREEK (WYLIE)                    02145524                  GASTON                 CATAWBA                    860924         19            4326              20438                YES, BLUE-GREENS

                   UT TO WAXHAW OR.                         UT TO WAXHAW OR.          UNION                  CATAWBA                    870407         2                                                    NO. FUNGUS

                   S. FORK CATAWBA R.(WYUE)                 02145442                  GASTON                 CATAWBA                    870526         31            2153              5870                 YES@OSCIGEM

                   CATAWBA CREEK (WYLIE)                    02145524                  GASTON                 CATAWBA                    870526         50            4927              13032                YES@ OSCI GEM






                                                                                                        APPENDIX 2.               ALGAL BLOOMS 1984-1990


                   STUDY                                   STATION                COUNTY                RIVER BASIN               DATE        CHL-a BIOVOLUIME                 DENSITY             BLOOM                                             FISH KILL?
                   S. FORK CATAWBA R.(WYLIE)               02145442               GASTON                CATAWBA                   870623         47           6791             7100               YES, MELOSIRAS

                   S. FORK CATAW13A R.(WYLIE)              02145442               GASTON                CATAWBA                   870723         10           2882             2463               NO

                   CEDARWOODPOND                           CEDARWOOD-1            MECKLENBURG           CATAWBA                   870812                      7663             19303              YES@ GREENS. BLUE-GREENS                           YES

                   CLEATON POND                            CLEATON-1              MECKLENBURG           CATAWBA                   e708I 8                     3050             11355              YES.GREENS, DLATOMS.EUGL                           YES

                   COOKPOND                                COOK-1                 GASTON                CATAWBA                   1170821        19           19089            59044              YES@CRYPTOPHYTESGREENS                             YES

                   HUNSUCKER FARM POND                     HUNSUCKER-1            CATAWBA               CATAWBA                   870918                                                          YES

                   LITHIUMEFFLUENT                         LITHIUM-1              GASTON                CATAWBA                   870924                      5740             162808             YM GRIM

                   SUMMERLIN POND                          SUMMERLIN-1            MECKLENBURG           CATAWBA                   880902         160          14872            8953               YES, GREENS. CRY. EILU&GREENS

                   LAKE WYLIE                              CTBCKC0VE              GASTON                CATAWBA                   890706         27           6683             24573              'YES

                   IRWIN CREEK                             02146300               MECKLENBURG           CATAWBA                   890802         10           3000             4629               NQ BUT PERIPHYTON

                   CRICKETLAKE                             CRICKET-i              MECKLENBURG           CATAWBA                   890823         54           333762           54502              YES@ CHL

                   FLAT BRANCH                             BRAGGPOND              MECKLENBURG           CATAWBA                   900614         10                                               YES, CHL-CLOSTERIOPSIS                             YES

                   GRANTSPOND                              GRANTS-1               GASTON                CATAW13A                  900621         14           5037             4658               YES, EMCHL.CRY

                   W(LSONS LAKE                            WILSONS LAKE           MCDOVA:U-             CATAWBA                   900730         10           813              6201               ND                                                 YES

                   STEELE CREEK                            STEELE CREK            MECKLENBURG           CATAWBA                   900801         5            3712             1572               NOBUTCYA

                   SOUTH FORK POND                         CRAMMERTON-1           GAS"                  CATAWBA                   900820         1900         194116           1388760            YES. CHL-CHLOROGONIUM EUCHLORUM                    YES

                   CROWDERSCREEK                           CROWD-15A              YORK SC               CATAWBA                   900905         35           12551            56948              YES, EUG. CYA-MER TEN

                   LAKE NORMAN                             LAKE NORMAN-2          CATAWBA               CATAWBA                   901003                                                          YES, CYA-ANAC CYA

                   LAKE NORMAN                             DAVIDSON-1             IREDELL               CATAWBA                   901016         6            695              3668               N:)

                   COMMSOOPE LAKE                          COMIMSOOPE-1           CATAWBA               CATAWBA                   901114         3500         1051475          38829              YES, CYA-COELOSPHAERIUM NAEGELIANUM



                   BLACKWATER RIVER                        0205007150             GATES                 CHOWAN                    850318         2            192              367                ND

                   CHOWAN RIVER                            02047370               GATES                 CHOMIAN                   860827         1            75               221                N:)

                   CHOWAN RIVER                            02050079               CHOWAN                CHOWAN                    860827         2            37               285                N:)

                   CHOWAN RIVER                            0205363575             CHOWAN                CHOWAN                    860827         29           2083             6347               ND

                   CHOWAN RIVER                            0205363575             CHOWAN                CHOWAN                    861003                                                          ID, BLUE@GREENS

                   CHOWAN RIVER                            02053632               BERTIE                CHOWAN                    861027                                                          ID, BWEGREENS-ANABAENA

                   CATHERINE OR.                           CATHERINE-1            BERTIE                CHOWAN                    870613                      3123             18167              YES, ANABAENA

                   CATHERINECR.                            CATHERINE-1            BERTIE                CHOWAN                    870707                      4835             5765               ID, CRY, DIN, ANAB

                   CHOWAN R. BELOW HOLIDAY 1               0205360615             BERTIE                CHUWAN                    870707         82           28059            17702              YES,ANABAENA PORTORICENSIS

                   ARROWHEAD BEACH                         AFIROWHEAD             CHDIWAN               CHOWAN                    870708                      19291            3960               YES,ANABAENA PORTORICENSIS

                   CHOWAN RIVER                            DYE PLANT              CHOWAN                CHOIWAN                   870805                      43060304         5415292            YESANABAENA PORTORICENSIS

                   CHOWAN RIVER                            MARKER5                BERTIE                CHOWAN                    870805                      283196           30133              YES,ANABAENA PORTORICENSIS

                   CHOWAN RIVER                            02053632               BERTIE                CHOIWAN                   870805         36           23352            4920               YES,ANABAENA PORTORICENStS







                                                                                                      APPENDIX 2. ALGAL BLOOMS 1984-1990

                  STUDY                                  STATION                COUNTY                RIVER BASIN              DATE        CHL-a        BIOVOLUIVE        DENSITY             BLOW                                            FISH KILL?
                  CHOWAN RIVER                           02053652               BERTIE                CHOWAN                   870805        9            4909            1287                NO, SOME ANAB PORT

                  ARROWHEAD BEACH                        ARROWHEAD-1            CHOWAN                CHOWAN                   870810        170          21808           11840               YES,ANARAENA PORTORICENSIS

                  CHOWAN RIVER                           02053244               HERTFORD              CHUWAN                   870810        111          2292            3319                NO. SOME ANAB POFTr

                  CHOWAN RIVER                           0205325510             BERTIE                CHOWAN                   870810        19           5548            3938                YESANABAENA PORTORICENSIS

                  CHOWAN RIVER                           02053632               BERTIE                CHOWAN                   870810        42           15643           5629                YES.ANABAENA PORTORICENSIS

                  CHMAN RIVER                            02053632               BER`nE                CHOWAN                   871019        2            @46             1089                N:)

                  ,CHOWAN RIVER                          0205360615             BERTIE                CHOWAN                   880602        a            684             1671                NO

                  CHOWAN RIVER                           02053632               BERTIE                CHOWAN                   880602        17           1325            2906                NEI

                  CHOWAN RIVER                           02053632005            BER`rIE               C40WAN                   880602        9            2239            3710                ND

                  CHOWAN RIVER                           02053632095            BERllE                CHOWAN                   880602        14           915             2981                NO

                  CHOWAN RIVER                           02053652               BEFTnE                CHOWAN                   880602        13           620             3265                NO

                  CHOWAN RIVER                           02053652005            BERTIE                CHOWAN                   880602        23           6931            7022                YES, PREVIOUSLY?

                  CHOWAN RIVER                           02053652095            BERTIE                CHUWAN                   880602        6            6038            16421               YES, PREVIOUSLY?

                  CHOWAN RIVER                           02053632               BER'nE                CHOWAN                   890522        25           4507            8851                NQ DINCRYCHR

                  CHOWAN RIVER                           CANAL-ARROW            CI-IMAN               CHOWAN                   890716        170          493             786                 YES, CYA CELLS DEGRADED-ANAB SUB

            OD    CHOWAN RIVER                           CHOWAN-3M              CHOWAN                CHOWAN                   890716        a            892             1071                NO

                  CHOWAN RIVER                           CHOWAN-1               BERTIE                CHOWAN                   890718        170          5506            8909                YES, CYA - ANAB SUB

                  CHOWAN RIVER                           02053632               BEFTnE                CHONAN                   890718        1            1745            2232                NO, BUT CYA-ANAB SUB
                  CHOWAN RIVER                           02053652               CHOWAN                CHOWAN                   890719        2            478             565                 NO. BUT CYA-ANA9 SUB
                  CHOWAN RIVER                           CHOWAWCOL              BERTIE                CHOWAN                   890801        NS           151798          270765              YES, CYA - ANAB SUB, ANAB POR
                  CHOWAN RIVER                           CATHERINE-1            CHOWAN                CHOWAN                   890808        54           30583           10970               YES, CYA- ANAB PCR, ANAB SUB

                  CHOWAN RIVER                           INDIAN-2               BERTIE                CHOWAN                   890808        35           15056           9084                YES. CYA - ANAB POR

                  CHOWAN RIVER                           INDIAN-3               BERTIE                CHOWAN                   890008        360          26978           13975               YES, CYA - ANAB POR

                  CHOWAN RIVER                           02053632               BEFME                 CHOWAN                   890808        3            1197            827                 NO, BUT CYA-ANA9 SUB

                  CHOWAN RIVER                           02653632               BERTIE                CHOWAN                   890816        10           1850            4051                NO, BUT CYA-ANAB SUB

                  CHOWAN RIVER                           02053652               CHOWAN                CHOWAN                   890816        26           2763            2763                NO. CYA-ANAB POR

                  CHMAN RIVER                            02053632               BEFME                 CHOWAN                   891010        4            358             571                 NO. CYA DIN, EUG

                  CHUWAN RIVER                           02053652               CHOWAN                CHUWAN                   891010        400          23595           3756                YES.CYA

                  C14MAN RIVER                           02053652               CHOWAN                CHOWAN                   891127        1            1222            274                 N:)

                  CHOWAN RIVER                           02053632               BERTIE                CHOWAN                   900612        2            279             681                 NO

                  CHOWAN RIVER                           02053652               BERM                  CHOWAN                   900612        3            666             1380                NO
                  CHOWAN RIVER                           CHOWAN-9               BERTIE                CHOWAN                   900612        4            305             1002                N:)
                  CHOWAN RIVER                           ARROWHEAD-1            13ERTIE               CHOWAN                   900619        15           11656           13695               YES CYA, CHL, CRY, BAC
                  CHOWAN RIVER                           CATHERINEA             BEFTrIE               CHOWAN                   900619        24           5330            5066                YES.CYA






                                                                                                                   APPENDIX 2.                  ALGAL BLOOMS 1984-1990


                    STUDY                                       STATION                    COUNTY                  RIVER BASIN                  DATE          CHL-a BIOVOLUklIE                   DENSITY               BLOW                                                    FISH KILL?
                    CHOWAN RIVER                                CHOWAN-4                   BERTIE                  CHUWAN                       900619          12            3034                5401                  NO

                    CHDWANRfvER                                 INDIAN-2                   BERTIE                  CHOWAN                       900619          A 1           3390                S590                  N:)

                    CHMAN RIVER                                 ROCKYHOCK-i                13ERTIE                 CHOWAN                       900619          12            6857                10307                 YES. CYA

                    CHOWAN RIVER                                0205360615                 BERTIE                  CHOWAN                       900619          9             1684                2533                  N:)

                    CHOWAN RIVER                                02053632                   BERTIE                  CHOWAN                       900619          10            3475                4076                  ND

                    CHOWAN RIVER                                0205363575                 BERTIE                  CHOWAN                       900619          6             14765               12438                 YES,CYA

                    CHOWAN RIVER                                02053652                   BERTIE                  CHDNAN                       900619          6             11552               8860                  YES@ CHLMD, CRY

                    CHOWAN RIVER                                02053652005                BERTIE                  CHOWAN                       900711                        13095               3419                  YES, CYA-ANAB POR. CRY

                    CHOWANRIVER                                 CATHERINE-7                BERTIE                  CHOWAN                       900712          350           32805               8122                  YES. CYA -ANAB FOR

                    CHOINAN RIVER                               CHOWAN-5                   BERTIE                  CHOWAN                       900712          250           69869               15897                 YES, CYA -ANAB POR

                    CHOWAN RIVER                                INDIAN-8                   BERPE                   CHOWAN                       900712          200           23698               6551                  YES, CYA -ANAB Pon

                    CHOWAN RIVER                                02053632                   BERM                    CHuWm                        900712          120           31330               8036                  YES, CYA -ANAB FOR

                    CHOWANSIVER                                 02053652                   BERPE                   CHMAN                        900712          17            3335                1910                  ND

                    CHOWAN RIVER                                BENNETTS                   BERTIE                  CHOWAN                       900712          270           22603               6521                  YES, CYA -ANAB POR

                    CHOWAN RIVER                                INDIAN-8                   BERTIE                  CHOWAN                       900726          35            7142                3474                  YFS.CYA-ANA13POR,CRY

                    CHOWAN RIVER                                02053632                   BERTIE                  CHOWAN                       900802          14            5179                2180                  YES. CYA -ANAB POR. CRY

                    CHOWAN RIVER                                02053652                   BERTIE                  CHOWAN                       900802          16            6245                2725                  YES, CYA -ANAB POR, CRY

                    CHOWAN RIVER                                CHOWAN-ROCK                BERTIE                  CHOWAN                       900802          100           10923               2306                  YES, CYA -ANAB POR, ANAC CYA

                    CH0WM RIVER                                 CHOWAN-3                   BERTIE                  C"UWAN                       900912          370           N/A                                       YES, CYA -ANAC CYA

                    CHOWAN RIVER                                02053632                   13ERTIE                 CHOWAN                       901016          6             3652                1077                  YES, CHLMD, CYA

                    CHOWAN RIVER                                0205360615                 BERTIE                  CHOWAN                       901016          4             1388                256                   N:)

                    CHOWAN RIVER                                02053574                   BERTIE                  CHOWAN                       901016          6             5tO9                699                   ND



                    UT TO NORTH TOE                                                        MITCHELL                FRENCH BR                    850320                                                                  tD, ENRICHWNT

                    CANE RIVER 0 SIOUX                          03464000                   MITCHELL                FRENCIABS,                   %%32%                         1243                3616                  NO, "04 PH



                    SANTEELAH LAKE                              SANTEELAH2                 GRAHAAA                 LITTLE TENNESSEE             891101          111           N/A                                       YES, CYA-ANACY    STIS

                    SANTEETLAH LAKE                             SANTEETLAH-1               GRAI-M                  LITTLE TENNESSEE             900620          27            10780               2492                  YES. CYA-ANA13 FOR, ANAC CYA



                    INTRACOASTAL WATERWAY                       @ SHALOTTE                 BRUNSWICK               LLNIBER                      86illo                        267                 1071                  N3

                    DUNNS PCND                                  DUNN-I                     ROBE"                   LUMBER                       870624                        45661               41404                 YES, OSCI P&S. SCENEDESMUSES

                    HOLEEN 13EACH                               HOLDE14-1                  BRUNSWICK               UJUGER                       870924                                                                  ID. DINOFLAGELLATES

                    DUNNSPOND                                   DUNN-I                     RCEE90N                 LUMBER                       880408          220           20397               117040                YES, 13LUE-GR - ANACYSTIS

                    BRUCE POND                                  BRUCE-1                    ROBESON                 UA43ER                       880531          NS            1451                833                   NO. EUG-TRACHELOMONAS VOLVOCINA








                                                                                                          APPENDIX 2. ALGAL BLOOMS 1984-1990


                   STUDY                                   STATION                  COUNTY                RIVER BASIN                DATE        CHL-a BIOVOLUME DENSITY                               BLOOM                                              FISH KILL?
                   ECHO LAKE                               ECHO LAKF-I              MOORE                 LLFABER                    900227         1            70               934                  I'D

                   LAKE PINEHURST                          LP-1                     MOORE                 U-Nam                      900718         3            710              833                  IND



                   SWIFT CREEK                             02092084                 CRAVEN                NEUSE                      840808         110                                                YES. GREENS@ CRYPTOPHYTES

                   SLOCUMCREEK                             MARKERS                  CRAVEN                NEUSE                      840816         38           50000            46379                YES, DP40FLAGELLATES
                   BROADCREEK                              @ MOUTH MARKER04         CARTERET              NEUSE                      840816         460          160933           8386                 YES, DINOFLAGtLLATES

                   HOOD SWAMP DRAINAGE POND                                         WAYNE                 NEUSE                      841022         960          177696           208314               YES. EUGIINOPHYTES

                   GOODWINCREEK                                                     CRAVEN                NEU3E                      850108         62           71056            29837                YES, DINOFLAGELLATES-PROROCENTRUM

                   SANDY RIJN                                                       CRAVEN                NEUSE                      850108         45           82262            36125                YES, DINOFLAGELLATES-PROROCENTRUM

                   TUCKERCREEK                                                      CRAVEN                NEUSE                      850108         91           67095            28893                YES, DINOFLAGELLATES-PROROCENTRUM

                   CRABTREE CREEK                          @ HWY 54                 WAKE                  NEUSE                      850522                      26070            7803                 YES, 13LUE-GREENS

                   WALNUT CREEK                                                     WAYNE                 NEUSE                      850816         4            1112             9034                 N:)

                   NEUSIE RIVER                            MOUTH OF TRENT           CRAVEN                NEUSE                      850829         40           3538             2066                 YES, DINOFLAGELLATES, DIATOMS

                   NEUSE RIVER                             02092162                 CRAVEN                NEUSE                      850918         46           2815             33802                YES, CRYPTOPHYTES, DIATOMS

                   TRENT RIVER                             @BUSINESS70BRIDGE        CRAVEN                NEUSE                      850918                      18577            72670                YES,CRYP.DIATOMS                                   YES
             OD    NEUSE RAER                              @ WILDLIFE RAMP          CRAVEN                NEUSE                      850918                      7772             49960                YES, DIATOMS, CRYPTOPHYTIES, DINOFLAGELLATES
                   CONTENTNEACREEK                         ABOVERR                  WILSON                NEUSE                      850920                                                            N:)

                   WENDELL LAKE                                                     JOHNSTON              NEUSE                      851108                                                            ID, DIATOMS, BLUE-GREENS

                   NEUSE RIVER@ ORIENTAL                   02092674                 PAMLICO               NEUSE                      860401         Is           5346             28416                YES, CYCLCTELLA

                   LITTLELICKCREEK                         0208700780               DURHAM                NEUSE                      860513         400          21847            39916                YES@ GREENS

                   LITTLE LICK CREEK                       0208700700               DURHAM                NEUSE                      860616         68           450              728                  tD, HIGH CHLA SOME EUGLENOF44YTES

                   PIGEMHOUSECREEK                         0208732544               WAKE                  NEUSE                      860620         22           3628             6987                 NO, ENRICHED THOUGH

                   FALLS OF THE NEUSE RESERVOIR            FALLS@ 185               DURHAM                NEUSE                      860716         280          17692            11966                YES@ GREENS@ EUGLENOPHYTES

                   FALLS OF THE NEUSE RESERVOIR            NEUDIO                   DURHAM                NFUSE                      860721         19           13742            41808                YES.GFIEENSCRYPTOPHYTIES                           YES

                   MIDWCREEK                               02088000                 JOHNSTON              NEUSE                      860721         a            641              7220                 I'D                                                YES

                   FAIRGROUNDS POND                                                 WAKE                  NEUSE                      860729                      1768             4280                 IDBLUEGREENS

                   TRENT RIVER                             0209256050               CRAVEN                NEUSE                      860923         66           2863             183072               YES, OLISTHODISCUS

                   NEUSE RIVER                             02092586                 CRAVEN                NEUSE                      860923         26           7730             36859                YES. OINOFLAGELLATES4`ROROCENTRUM

                   UT TO NORTHWEST GREEK                   FAIRFIELDHAR.            CRAVEN                NEUSE                      861010         31           110694           83850                YES,DIATOMS                                        YES

                   SLOCUM CREEK                                                     CRAVEN                NEUSE                      861013         49           3065             10631                YES

                   CONTENTNEA MEM SEWAGE                                            PITT                  NEUSE                      861013                                                            NIA, FILAMENTOUS GREENS, ULOTHRIX

                   NEUSE RIVER                             02092092                 CRAVEN                NEUSE                      861028                                                            ID.ANAC CYA, SALT WEDGE

                   TRENT RIVER                             0209256050               CRAVEN                NEUSE                      861028         150          2863             183072               YES, OLISTHODISCUS

                   PAULA HARRIS POND                       PAULA HARRIS POND        WAKE                  NEUSE                      870409         3                                                  N/A. FILAMENTOUS







                                                                                                                                                                                                                                            4
                                                                                                               APPENDIX 2.                 ALGAL BLOOMS 1984-1990


                  STUDY                                      STATION                   COUNTY                  RIVER BASIN                 DATE         CHL-a BIOVOLUKE DENSITY                                 BLOW                                                   FISH KILL?
                  HAYWARDCR.                                 HAYWARD-2                 GRAVEN                  WUSE                        870609           50          4517               46991                YES, CYCL SP

                  CRYSTALLAKE                                CRYSTAL-I                 CRAVEN                  NEUSE                       870710                       10435              113197               YES@OSCIGEM

                  WENDELLLAKE                                WENDELL-I                 JOHNSTON                NEUSE                       870814           230         54681              838497               YES, ANACYSTIS CYANEA

                  ENO RIVER                                  ENC14EFLANO               ORANGE                  NEUSE                       870818                       8957               31444                YES, GREENS

                  LIT TONORTHWEST CREEK                      FAIRFIELD HAR.            CRAVEN                  NEUSE                       870923           le          4950               96427                YES,09CIGEM,CYCL                                       YES

                  DATA GENERAL POND                          DOP                       JOHNSTON                NFUSE                       871008                       11678              16945                YES@ EUG.LENOPH`YTES                                   YES

                  NEUSE RIVER                                NEUSE-CYC                 CRAVEN                  NEUSE                       880122           17          4962               7424                 NQ CYCLCITEUA PRO MIN

                  SMrrHCAEEK                                 SMITH@GE2,GEII            CRAVEN                  NEUSE                       880122           23                                                  NIA FtL-MELOSIRA MONCILIFORMIS

                  LOWER BROAD CREEK                          BROAD 3A. 3B              PAMLICO                 NELISE                      880202           NS                                                  NIA FIL GREENS-CLADOPHORA

                  WHITAKERCREEK                              WHITAKER-1                PAMLICO                 NEUSE                       880202           NS                                                  N/A MELOSIRA MONOLIFORMtS

                  UPPER BROAD CREEK                          BROAD-i                   CRAVEN                  NEUSE                       880210           33          21154              52057                YES, CYCLCFTELLA SPECIES 3

                  UPPEREIROADCREEK                           BROAD-1                   CRAVEN                  NEUSE                       88D215           44          6996               36510                YES, CYCLOTELLA SPECIES 3

                  NEUSE RIVER                                PITCH                     CRAVEN                  NEUSE                       880415           @l          140                210                  N:)

                  FALLS OF THE NEUSE RESERVOIR               NEUDI 3                   GRANVILLE               NEUSE                       880601           210         29487              44254                YES, CRYP'r0PHYTES

                  RIVER BEND CANALS                          RrVER-BEND                CRAVEN                  NEUSE                       880614           510         108802             90837                YES. GREENSCARTERIA

                  LITTLE RIVER                               02085241619               DURHAM                  NELISE                      880614           6                                                   N/A FILAMENTOUS GREENS

                  BELL FAMILY POND                           BELL POND                 WAKE                    NEUSE                       880706           80                                                  N/A FILAMENTOUS GREENS-OEDOGONIUM

                  NEUSE RIVER                                RIVERDALE                 CRAVEN                  NEUSE                       880801           26          4934               8734                 NO, EUG. CRY. BL-GREENS

                  LAKE ORANGE                                NEUDDB                    ORANGE                  NEUSE                       880810           13          1744               3337                 NO

                  LAKE ORANGE                                NEUD082                   ORANGE                  NEUSE                       880810           9           2076               2638                 NO

                  LAKE ORANGE                                NEUD0134                  ORANGE                  NEUSE                       880810           9           2432               3476                 N:)

                  CORPORATION LAKE                           NEU0DCl                   ORANCIE                 NEUSE                       880810           15          601                1368                 NO, BUT CISCI MATS PRESENT

                  RALEIGH GOLFCOURSE POND                    GOLF-BL                   WAKE                    NEUSE                       660823           570         36280              55179                YES, EUGLENOPHYTES                                     YES

                  LAKE WHEELER                               LW-I 25%                  WAKE                    NEUSE                       881027           @l          834                1089                 NO, FIL BL-GR

                  TREW RIVER                                 0209256050                CRAVEN                  NEUSE                       881116           3           9780               8152                 YES,CRYPTCIPHYTES

                  MACGREGOR GOLF COURSE P                    MACGREGOR PCND            WAKE                    NEUSE                       881208           NS                                                  YES, BLUE-GREEN

                  LAKE WHEELER                               LW43OCK                   WAKE                    NEUSE                       881220           i6o         19592              12112                YES, F(L BL-GR - ANABAENA

                  MACGREGOIR GOLF COURSE P                   MACOREGORPOIND            WAKE                    NEUSE                       890427           @i                                                  N/AFILCHO-OEDOGONIUM

                  NEUSERIVER                                 02092682                  PAMLICO                 NEUSE                       890525           29          2845               18080                YES, BAC

                  BEARDCREEK                                 BEARD-A                   PAMLICO                 NEUSE                       890601           NS          8193               26552                YES, BAC, DIN

                  BEARD CREEK                                BEARD-9                   PAMLICO                 NEUSE                       890601           38          13050              23406                YES. M, DIN

                  BEAROCREEK                                 BEARD-C                   PAMLICO                 NEUSE                       890601           NS          10699              10044                YES, BAC. DIN

                  HANCOCK CREEK                              HANOCICK-E                CRAVEN                  *USE                        890601           20          17769              33540                YES, BAC. DIN

                  NEUSE RIVER                                NEUSE-D                   CRAVEN                  NEUSE                       890601           69          42649              12461                YES, BAC, DIN







                                                                                                                         APPENDIX 2.                   ALGAL BLOOMS 1984-1990


                    STUDY                                          STATION                     COUNTY                    RIVER BASIN                   DATE             CHL-a BIOVOLUhE                    DENSITY                13LOOM                                                     FISH KILL?
                    LAKE JCHNSON                                   JOHNSON-1                   WAKE                      NELISE                        890605           91             254`10              24844                 YES, CYA

                    YATES FOND                                     YATES- I                    WAKE                      NEUSE                         890615           3              1136                3824                  NO, CHL

                    NEUSE RIVER                                    NEUI 31 X                   CRAVEN                    NELISE                        890619           250            35829               109354                YES, 13AC - CYCLOTELLA

                    NEUSE RIVER                                    02092586                    CRAVEN                    WILE                          890619           100            11367               247357                YES, BAC - CYCLOTELLA

                    IFYKEWOODPOND                                  FYKEWOMI                    WILSON                    NELISE                        890623           119            7382                22290                 YES@CHL

                    DAWSON CRE EK                                  DAWSON-X                    CRAVEN                    NELISE                        890714           NS             19958               49.087                YES, CHR, BAC, DIN

                    DAVVSONCAEEK                                   DAWSON-Y                    CRAVEN                    NELLIE                        890714           NS             8313                51,533                YES, CHR. BAC, DIN

                    FAIRGROUNDS POND                               FAIRGROIJNDS POND           WAKE                      NELISE                        890721           .6             25179               204383                YES,CYA

                    NEUSE RIVER                                    NEUSE-1                     PAMLICO                   NELISE                        890804           300            25298               33715                 YES, DIN, BAC. CYA

                    NELISE RIVER                                   NEUSE-2                     PAMLICO                   WUSE                          890804           33             2582                48039                 YES. DIN, BAC, CYA

                    NELISE RIVER                                   NEUSE-3                     CRAVEN                    NELISE                        890804           73             5369                52406                 YES, DIN, BAC, CYA

                    NEUSE RIVER                                    NELISE-4                    PAMLICO                   NELISE                        890804           38             3318                10097                 YES, DIN, BAC, CYA

                    NEUSE RIVER                                    NEUSE-lA                    PAMLICO                   NELISE                        890807           38             alai                14907                 YES. DIN, BAC, CYA

                    NEUSE RIVER                                    NELISE-2B                   PAMLICO                   WUSE                          890807           38             4603                15023                 YES. DIN, BAC, CYA

                    NELISE RIVER                                   NEUSE-3C                    PAMLICO                   NELLIE                        890807           46             4359                20322                 YES, DIN, BAC. CYA

             00
                    NEUSE RIVER                                    BEARD (NEUSE-E)             CRAVEN                    NELISE                        890809           77             14303               46816                 YES, DIN. CYA
                    NEUSE RIVER                                    GOOSE (NELISE-B)            PAMLICO                   NEUSE                         890809           35             5036                8734                  YES, DIN, CYA

                    NELLIE RIVER                                   KENNEL (NEUSE-F)            PAMLICO                   NELISE                        890809           130            23043               29347                 YES, DIN, CYA

                    NELLE RIVER                                    02092162 (NELISE-A)         CRAVEN                    NELLIE                        890809           1              320                 943                   N3

                    NEUSE RIVER                                    NELI`139                    PAMLICO                   NELISE                        890814           14             30460               34239                 YES, DIN, CYCL, cYA

                    NELLIE RIVER                                   02092586                    PAMLICO                   KpJSE                         890821           94             7469                56424                 YES, SAC, CYA, DIN

                    NELISE RIVER                                   NEUSE-MINN                  PAMLICO                   WUSE                          890918           NS             35531               35054                 YES. DIN-PERI TRO, CYA, CHL

                    WENDELL LAKE                                   WENDELL-1                   JOHNSrUN                  NEUSE                         890919           130            14676               4949                  YES. CYA-ANABAENA

                    WENDELL LAKE                                   WENDELL-2                   JOHNSTON                  WUSE                          890921           200            29219               13043                 YES,CYA-ANABAENA SPP, ANACYSTIS

                    NELLE RIVER                                    NEU139                      CRAVEN                    NELLIE                        891017           31             6855                96777                 YES. BAC, CY& DIN

                    LAKE WHEELER DOCK                              WHEELER DOCK                WAKE                      NELISE                        891031           54             1394                1409                  YES.CYA, BLIT PATCHY

                    NEUSE RIVER                                    NEUl3tX                     CRAVEN                    WUSE                          8911114          100            25442               30046                 YES. BAC

                    GARNERPOND                                     GARNER POND                 WAKE                      NELISE                        900228           130            8306                4944                  YES, ELIO

                    COBBLE POND                                    G013BLE POND                WAKE                      NELISE                        900315           17             N/A                                       FIL GREENS

                    RAYRIVER                                       ALLIGATOR-5                 PAMLICO                   WLISE                         900315           140            35788               33191                 YES DIN PRO MIN

                    RAY RIVER                                      CHAPPEL-7                   PAMLICO                   NE1JSE                        900315           71             12178               13364                 YES DIN PRO MIN, CRY

                    BAY RIVER                                      RACCON-2                    PAMLICO                   NELLIE                        900315           56             7414                11005                 YES DIN PRO MIN, BAC

                    BAYRIVER                                       TRENT-1                     PAMLICO                   NELISE                        9003i5           110            25910               24980                 YES DIN PRO MIN

                    RAY RIVER                                      VANDEMERE-8                 PAMLICO                   wim                           900315           7              1414                1834                  ND






                                                                                                                    APPENDIX 2.                 ALGAL BLOOMS 1984-1990


                   STUDY                                        STATION                    COUNTY                   RIVER BASIN                 DATE          CHL-a BIOVOLUME_                    DENSITY                BLOW                                                    FISH KILL?
                   NEUSE RIVER                                  NEUI 39                    PAMLICO                  NEUSE                       900319          140            4954               19128                  YES. PRO MIN. HET TAI. BAC-SKEL POT

                   NEUSE RIVER                                  NEUI 39                    PAMLICO                  NEUSE                       900524          25             1044               11398                  YES. EIAC-CYCL SP3. DIN PERI TRO

                   NEUSE RIVER                                  NEU131X                    PAMLICO                  NEUSE                       900524          120            47`10              11049                  YES, DINGYM NEL.GYR AURCRY

                   NEUSE RIVER                                  NEU131F                    CRAVEN                   NEUSE                       900627          16             1066               10365                  YES, EIAC-CYCL SP3, CRY.CHR

                   NEUSE RIVER                                  02092586                   CRAVEN                   NEUSE                       900627          27             13190              27077                  YES, XAN-OLIS CAR,CRY,CHR

                   LAKE WENDELL                                 WNDL-W                     JOHNSTON                 WUSE                        900705          270            58404              13014                  YES, CYA - ANAB, APHA FLO, ANAC CYA

                   ORIENTAL WWTP LAGOON                         ORIENTAL-LAG               PAMLICO                  NEUSE                       900718          90             13.773             19041                  YES, CHL-CHLLA, CYA ANABS RAC

                   NEUSE RIVER                                  NEU139                     PAMLICO                  NEUSE                       900724          21             8868               12578                  YES. DIN, CRY, CYA-PHOR ANG

                   NEUSE RIVER                                  NEU131X                    PAMLICO                  WUSE                        900724          23             2957               18779                  YES. DIN. CRY

                   NFUSE RIVER                                  NEUI 31 F                  CRAVEN                   NEUSE                       900725          34             2438               3756                   YES. DIN-GYR AUR,RAC.CRY

                   VET SCHOOL                                   VET S-1                    WAKE                     NEUSE                       900812          4800           96001              61722                  YES CYA - ANAC CYA                                      YES

                   VET SCHOOL                                   VIET S-2                   WAKE                     NEUSE                       900812          140            38055              24339                  YESEMCYA                                                YES

                   VET SCHOCIL                                  VIET S-3                   WAKE                     NEUSE                       900812          88             15001              18459                  YES EUGA CYA                                            YES

                   NEUSE RIVER                                  NEUSE-12                   CRAVEN                   NEUSE                       9008`17         13             1046               3052                   N:)                                                     YES

                   MRIVER                                       ENO-1                      DURHAM                   NEUSE                       900821          250            30120              6580                   YESi EUG.
           DO
           w       ENORFVER                                     ENO-2                      DURHAM                   NEUSE                       900821          83             30325              6359                   YES@ EUG.

                   NEUSE RIVER                                  GREENSPRINGSA              CRAVEN                   NEUSE                       900827          29             2223               13975                  YES, XAN-OLIS CAR, CRY

                   NEUSE RIVER                                  GREENSPRINGS8              CRAVEN                   NEUSE                       900827          26             11278              36102                  YES, XAN-OLIS CAR, CRY

                   NEUSE RIVER                                  GREENSPRINGSC              CRAVEN                   NEUSE                       900827          51             11984              35170                  YES, XAN-OLLS CAR, CRY

                   FALLSRESERVOIR                               NEU010                     GRANVILLE                NEUSE                       900912          33             5271               12578                  YES, EUG, CYA

                   NEUSE RIVER                                  NEUSE-2                    CRAVEN                   NEUSE                       900916          25             5409               66381                  YES. EIAC-CYCL SP3, CYA                                 YES

                   NEUSE RIVER                                  NEUSE-4                    CRAVEN                   NEUSE                       900916          25             4960               90488                  YES, BAC@CYCL SP2, CYA                                  YES

                   NEUSE RIVER                                  NEUSE-7                    CRAVEN                   NELISE                      900916          22             10416              84898                  YES, W-CYCL SP3,CRY                                     YES

                   NEUSE RIVER                                  NEUI 31 X                  CRAVEN                   NEUSE                       900925          1$             5474               172591                 YES, BAC-CYCL SP2                                       YES

                   HART POND                                    HARTPOND                   GRANVILLE                NEUSE                       900926                         N/A                                       YES, CYA - ANAB PORT                                    YES

                   NEUSE RIVER                                  02092162                   CRAVEN                   NEUSE                       900926          39             2485               45419                  YES. DIN, EIAC-CYCL SP2&3                               YES

                   NEUSE RIVER                                  NEU131F                    CRAVEN                   NEUEE                       900926          53             19670              129967                 YES. EIAC-CYCL SP2                                      YES

                   MILLCREEK                                    MILL CR-R                  PAMLICO                  NEUSE                       901204          17             7776               9549                   YES, DIN-PRO MIN

                   MILL CREEK                                   MILLCAMAR                  PAMLICO                  NEUSE                       901204          140            88369              79133                  YES. DIN-PRO MIN



                   PHELPS LAKE                                  NR BOAT RAMP               WASH14GTON               PASOL)OTANK                 840416          170            23923              1901                   YES, GREENS-MOUGEOTIA

                   ALBEMARLE SOUND                              02081145                   CHOWAN                   PASOLIOTANK                 840524          2              822                1310                   N:)

                   ALBEMARLE SOUND                              02081172 N. SHORE          PERQUIMANS               PASQUOTANK                  840723          11             394                1398                   N:)

                   ATLANTICOCEAN                                NR COROLLA                 CLIRRITUCK               PASCILICITANK               840809                                                                   YES, DINOFILAGELLATESPROROCENTRUM







                                                                                                        APPENDIX 2.               ALGAL BLOOMS 1984-1990


                 STUDY                                   STATION                  COUNTY                RIVER BASIN               DATE         cHL-a BIOVOLUME                 DENSITY                BLOOM                                            FISH KILL?
                 ALBEMARLE SOUND                         MARKER 3                 TYRELL                PASOLIOTANK               840822                                       1747                   NO,

                 ALBEMARLE SOUND                         02081172                 PEROIJIMANS           PASQUOTANK                840022         10                            4193                   N:)

                 PASQUOTANK RIVER                        02043862                 PASQUOTANK            PASQUCTANK                940925                      7122             725                    YESBLUE4GREEN

                 PERGUIMANS; RIVER                       NR wHrrE 14AT LANDING    PERQUIMANS            PASQUOTANK                841005                      6935             1042                   YES, BLUE-GREEN

                 PASQUOTANK RIVER                        HWY 156                  PASCKX)TANK           PASOUOTANK                841009                      5433             3494                   YES

                 ALBEMARLE SOUND                         02081172 85%             TYRELL                PASQUOTANK                850524         2            1522             4498                   ND

                 SCUPPERNONG.                            @ MOM MARKER 03          TYRELL                PASQUOTANK                850822                                                              ID

                 ALBEMARLE SOUND                         02081145 50%             CHOWAN                PASQUICTANK               851019                                                              ID, BLUE-GREEN

                 PASQUOTANK RIVER                        02043862                 PASOLIOTANK           PASQUOTANK                860730         41           2484S            28648                  YES, BLU&GREENS, GREENS

                 LITTLE RIVER NEAR WEEKSVILLE            02043884                 PASQUOTANK            PASOUCTANK                860730                      3059             32055                  YES@ GREENS, BLUE-GREENS

                 AL13EMARLE SOUND                        @ BLUFFS                 CHOWAN                PASOUCITANK               870707                                                              ID, ANACYSTIS CYANE A

                 YEOPIM RWR                              YEOPIM                   PEROUFMANS            PASOUGTANK                870709                      82692            114595                 YES, ANABAENA PORTOR ICENSIS

                 ALBEMARLE SOUND                         02081172                 CHOWAN                PASOUCTANK                070709         6            947              4367                   NO

                 AL13EMARLE SOUND                        02081172085              CHOWAN                PASQUOTANK                870709         9            725              3394                   @O

                 ALBEMARLE SOUND                         02081145                 CHOWN                 PASC)UOTANK               870710         10           933              4309                   NOI

                 ALBEMARLE SOUND                         02081145005              CHOWAN                PASGI"ANK                 870710         3            864              2492                   NO,
          01)
          'I'-   LITTLE RIVER                            02043884                 PERQUIMANS            PAsQuaTANlK               880718         51           11528            115992                 YES, BLUE 40nEENS

                 ALLIGATOR                               ALLIGATOR CREEK          TYRELL                PASCK)OTANK               890118         NS           N/A                                     NtA FILAMENTOUS CHL

                 ALBEMARLE- SOUND                        ALBEMARLE-A              WASHINGTCN            PASQUIOTANK               900417                      N/A                                     FIL CHL-CLADOF440RA SP

                 ALBEMARLE-SOUND                         ROANOIKE-B               WASHINGTON            PASOWTANK                 900417                      N/A                                     FtL BAC-MELOSFRA VAR. CHL SPIROGYRA, ULCITHRIX

                 AL13EMARLE SOUND                        ALBBEACH                 WAS14INGTON           PASOLIOTANK               900706                      N/A                                     FIL CYA-TOLYPOTHRIX SP

                 KENDROCKSCREEK                          02081185                 WASHINGTON            PASOLK)TANK               900712                      30400            2030                   YES@ CHLMQ CRY

                 ALLIGATOR RIVER                         0208117810               TYRELL                PASOUCTANK                900820         14           4456             14761                  YES. XAN-OLIS CAR,CRY,CYA



                 ROANOKE RIVER @ SAN SOLICI              02081141                 BERTIE                ROANOKE                   850320                      4622             2708                   NO

                 CASHIE RIVER @SAN SOUCI                 02081134                 BERTIE                RON40KE                   850710                      2141             7803                   N[)

                 NUTBUISH CREEK                          ROA037A                  VANCE                 FKW40KE                   860722         65           11136            102716                 YES, 13LUE-GREENS

                 FLAT CREEK                              @ HWY 39                 VANCE                 ROANOKE                   860722         16           9620             92584                  YES, 13LUE-GREENS

                 BELEWSCREEK                             BELEWS CR L              FORSYTH               ROANOKE                   890515         3            2055             804                    N:)

                 LIT BRUSHY FORK GREEK                   HOLT FERG-1              STOKES                ROANOKE                   890622         44           24387            19215                  YES@ EUr% CRY

                 ROANOKE RIVER                           ROAN40PE NETS            WASHINGTON            ROANOKE                   900314                      N/A                                     FIL BAC - MELOSIRA ITA TE



                 OTIS CRISP SAND PIT                                              BEAUFORT              TAR-PAMLICO               850315                      6320             466                    N:)                                              YES
                 PAMLICORrVER                            @ FIR TRESSLE,           BEAUFORT              TAR-PAMLICO               850402                                                              NIA, MELOSPA SYNEDRA ON NETS
                                                         WASHINGTON






                                                                                                               APPENDIX 2.                  ALGAL BLOOMS 1984-1990


                 STUDY                                       STATION                   COUNTY                  RIVER BASIN                  DATE         CHL-a BIOVOLUkC DENSITY                                   BLOONI                                                  FISH KILL?
                 MRHAMCREEK                                  WESTTRANSECT              BEAUFORT                TAR-PAMLIC0                  850404          12            3827               1922                  w

                 PAMLICOAFVER                                @ MOUTH OF RATH           BEAUFORT                TAR-PAMLICO                  850404         .9             2561               1415                  NO
                 RIVER PARK POND                             CREEK                     PITT                    TAR-PAMLIC0                  851023          6             1834               2341                  NO, BUT EUGLENCIPHYTESCOLORED WATER

                 PAM-PUNGO                                   JACKSCREEK                BEAUFORT                TAR-PAMLICO                  860224                        26201              24456                 YE S, D INORAGELLATES- COLORED WATE A

                 PUNGO, RIVER                                DOWN FROM "DAN CA,        BEAUFORT                TAR-PAMLICO                  860226          12            4042               4629                  YES, DINOFLAGELLATFS- COLORED WATER

                 PUNGOCAEEK                                  NR PARKERS MOTEL          BEAUFORT                TAR-PAMLICO                  860226          170           52770              40760                 YES, DINOFLAGELLATES- COLORED WATER

                 PAM-PLING0                                  ROADSIDE DITCH            BEAUFORT                TAR-PAMLIC0                  860226                        71212              52872                 YES, DINOFLAGELLATES- COLORED WATER

                 ELATH CREEK                                 STATION 01                BEAUFORT                TAR-PAMLICO                  860226          53            11977              14883                 YES, DINOFLAGELLATES- COLORED WATER

                 PAMLIOORIVER                                  N SHORE FERRY           BEAUFORT                TAR-PAMLICO                  860226          11            6193               5503                  YES, DINOFLAGELLATES- COLORED WATER

                 PAMLICO-PUNG0                               NR PARKERS MOTEL          BEAUFORT                TAR-PAMLICO                  860325          53            6818               160188                YES

                 BATHCREEK                                   STATION 41                BEAUFORT                TAR-PAMLICO                  660325          28            6132               128570                YES

                 PAMLICORFVER                                @NSHCREFERRY              BEALIFCIAT              TAR-PAMLICO                  860325          9             5893               13160                 NO, FOLLOWUP

                 RATH CREEK                                  @ POINT                   BEAUFORT                TAR-PAMLIC0                  860414                                                                 NIA, FILAMENTOUS RED-BOSTRICHIA. GREEN
                                                                                                                                                                                                                   ENTEFKAKXV+A
                 PUNGOCREEK                                  LOWER SITE                BEAUFORT                TAR-PAMLICO                  860424          28            4289               52755                 YES,CYCLOTELLA                                          YES

                 PUNGOCREEK                                  SAMPLE #3                 BEAUFORT                TAR-PAMLICO                  860424          48            6587               54852                 YES,CYCLOTELLA                                          YES%
        OD
        Ln       PUNGOCREEK                                  SAMPLE04                  BEAUFORT                TAR-PAMLICO                  860424          160           14589              99222                 YES, CYCLCITELLA                                        YES

                 PUNGOCREEK                                  UPPER SITE                BEAUFORT                TAR-PAMLICO                  880424          7             1654               6009                  N:)                                                     YES

                 PUNGOCREEK                                  @ US 264 BRIDGE           BEAUFORT                TAR-PAMLICO                  860424          22            2896               110,481               YES, CYCLOrELLA                                         YES

                 PAMLIOCIRIVER                               0 BAYVIEW                 BEAUFORT                TAR-PAMLICO                  860507                                                                 N/A@ FILAMENTOUS-CLADOPHORA

                 PAMILIOCIRIVER                              I MI ABOVE WHICHARDS      BEAUFORT                TAR-PAMLICO                  860527          120           17944              121233                YES, CYCLCITELLA                                        YES
                 BROADCREEK                                  BEACH                     BEAUFORT                TAR-PAMLICO                  860716          61            5449               43235                 YES, CYCLOTELLA

                 BATH CREEK                                  DOWN FROM CRADLE          BEAUFORT                TAR-PAMLICO                  860815          23            2953               31007                 YES, CHAYSOPHYTESIOLISTHODISCUS
                                                             GUT
                 CRADLE GUT                                  LOWERSITE                 BEAUFORT                TAR-PAMLICCI                 860815          150           18027              53804                 YES, CHRYSOPHYTES40LISTHODISCUS

                 CRADLE OUT                                  UPPER SITE                BEAUFORT                TAR-PAMLICO                  860815          680           72362              219057                YES, CHRYSOPHYTES40LISTHODISCUS

                 PAMILICORIVER                               @TEXASGULF                BEAUFORT                TAR-PAMLICO                  srlasis                       2315               A7032                 it). BUT CRAB KILL                                      YES

                 BATH CREEK                                  02084534, uPsTnEAM        BEAUFORT                TAR-PAMLICO                  860817                        2418               33365                 ID

                 PAMLIOORWER                                 02084472                  BEAUFORT                TAR-PAMLIC0                  860925          97            5626               22290                 YES, CHRYSOPHYTES40LISTHODISCUS

                 TRANTERS CREEK                              02084392                  PITT                    TAR-PAMLICO                  860930          730           43119              122281                YES, CHRYSOPHYTES40LMTHODISCUS

                 PAMLIOORIVER                                02084472                  BEAUFORT                TAR-PAMLICO                  861000          94            9833               40877                 YES,CYCLOTELLA                                          YES

                 PAMLICO RIVER                               WHICHARDSOEACH            BEAUFORT                TAR-PAMLIC0                  861215          930           '172841            137304                YES, PROROCENTRUM, HETEROCAPSA

                 PAMLICO MARKER 16                           PAM-16                    BEAUFORT                TAR-PAMLICO                  870527                        15210              199842                YES, CYCL SP2

                 PUNOOCA                                     0208457020                BEAUFORT                TAR-PAMLIC0                  870706          100           101048             113197                YES.PERITROC

                 MOUTH OF BROAD CA.                          0208451950                BEAUFORT                TAR-PAMLICO                  870708          30            6084               52755                 YES, OSCI GE M, ANABS CIA

                 PAMLICO RIVER @ HICKORY PT.                 0208454450                BEAUFORT                TAR-PAMLIC0                  870708          27            20205              11389                 YES.PERITROC







                                                                                                     APPENDIX 2. ALGAL BLOOMS 1984-1990


               STUDY                                    STATION                COUNTY                RIVER BASIN              DATE         CHL-a BIOVOLUNE                 DENSITY             BLOOM                                             FISH KILL?
               HAWKINSBEACH                             HAWKINS-1              BEAUFORT              TAR-PAMLICO              870713                      4728             10307               YES,ANABSCIR, OSCI GEM. PERITRO,                  YES

               BAYVIEW                                  BAYVIEW-I              BEAUFORT              TAR-PAMLICO              870715        19            8241             16333               YES.DINOFLAGELLATES.OSCI GEM                      YES

               BAYVIEW                                  BAYVIEW-2              BEAUFORT              TAR-PAMLICO              870715        20            3218             28474               YES,DINOFLAGELLATES,OSCI GEM                      YES
               BAYVIEW                                  BAYVIEW-3              BEAUFORT              TAR-PAMLICO              870715        14            5030             53105               YES,DINOFLAGELLATES,CSCI GEM                      YES

               PUNGOCR                                  PUNGOI                 BEAUFORT              TAR-PAMLICO              870720        11            3556             7453                IND

               PUNGOCR                                  PUNG0-4                BEAUFORT              TAR.PAMLICO,             870720        19            1792             9154                ND

               PLJNGOCR                                 PUNGO16                BEAUFORT              TAR-PAMLIC0              870720        56            22391            15722               YES, DINCIFLAGELLATES,OSCI GEM

               CILDFORT                                 OLD FORT               BEAUFORT              TAR-PAMLICO              870723                      6478             40527               YES, DINOFLAGELLATES,OSCI GEM

               KENNEDYCREEK                             KC-1                   BEAUFORT              TAR-PAMLICO              870730        200           19548            289980              YES, GREENS

               PAMLICO R.                               GPSL                   BEAUFORT              TAR-PAMLICO              870731        22            4181             12752               YESDINOFLAGELLATES                                YES

               IPAMLICOR.                               POUND                  BEAUFORT              TAR-PAMLICO              870731        30            9303             15430               YES, DINOFLAGELLATES                              YES

               PAMUICOR_                                IC                     BEAUFORT              TAR.PAMLIC0              870731        23            14701            21137               YES,DNOFLAGELLATES                                YES

               PAMLICOR.                                CONTROUB               BEAUFORT              TAR-PAMLICO              870804        60            11123            20700               YES. CRAB KILL, LYNGBYA                           CRAB KILL

               PAMUICOR.                                9                      BEAUFORT              TAR-PAMLICO              870804        22            8953             50485               YES

               TAR RWR                                  02084171               PITT                  TAR-PAMLICO              870825        15            5968             12193               ID, TRACHELOMONAS
        OD     BLOUNTSCREEK                             BLCUNT-i               BEAUFORT              TAR-PAMLICO              870831        88            34065            50135               YES,DINOFLArACYCL, OSCI GEM                       YES

               COTTON PATCH CANAL                       Opc                    BEAUFORT              TAR-PAMLICO              870831        44            12059            26767               YES.CRYPTCl"lFS,DINOFLAGCYQ,                      YES

               PAMILICIORIVIER                          SWAN FT.               BEAUFORT              TAR-PAMLICO              870922                                                           NO, FUNGUS

               BROADCREEK                               02084151950            BEAUFORT              TAR-PAMLICO              871005        28            3404             38781               YES@GREENSCHRYSOP9frES

               WASTE LAGOON                             WSL                    GRANVILLE             TAR-PAMLIC0              871006                                                           YES, RKXENIOPHYTES

               WHEELER POND                             WHEELER-P              FRANKLIN              TAR-PAMLICO              860125        10            1467             6143                NO, MALLOMONAS

               BATHCREEK                                BATH-EAST              BEAUFORT              TAR-PAMLICO              880126        41            32604@           13917               YES DIN - PRO MIN

               BATHCREEK                                BATH-WEST              BEAUFORT              TAR-PAMLICO              880126        44            34409            9389                YES DIN - PRO MIN

               HAWKINS BEACH                            HAWKINS-1              BEAUFORT              TAR-PAMLICO              8801131       NS            560964           93632               YES DIN - PRO MIN

               BATHCRFIEK                               BATH-1                 BEAUFORT              TAR-PAMLICO              880209        40            37027            11573               YES,HETERCCAPSA.PRDROCENTFIUM

               PAMLICO RIVER                            DURHAM CR-NET          BEAUFORT              TAR-PAMLICO              880209        NS                                                 N/A FIL GREEN-CLADOPHORA

               DUAHAMCFIEEK                             DURMAI*i               BEAUFORT              TAR-PAMLICO              880209        33            34387            14220               YES.HETERCICAPSkPROROCENTRUM

               OURHAMCREEK                              DURHAM-2               BEAUFORT              TAR-PAMLIC0              880209        15            22807            7337                YES.HETEROCAPSARROROCENTRUM

               PAMLICO RIVER                            PRA (BROAD MO)         BEAUFORT              TAR-PAMLICO              880209        34            32358            8996                YES,HETEROCAPSAPRDROMNTRUM

               PAMLICO RIVER                            PR-2 (BTW`N BROAD      BEAUFORT              TAR-PAMLIC0              880209        43            35116            8135                YES,HETERCICAPSARAOROCENTRUM
                                                        BLOUNTS)
               PAMLICO RIVER                            PR-3 (NR UPPER GOOSE   BEAUFORT              TAR-PAMLICO              880209        150           158273           35461               YES.HETERCICAPSARROAOCENTRUM
                                                        CFq
               PAMLICO RIVER                            PR-5 (NR BATH MOUTH)   BEAUFORT              TAR-PAMLICO              880209        39            48498            21312               YES,HETEROCAPSAPROROMNTRUM

               PAMLICO RIVER                            PR-50 (BTWN 13ATH &    BEAUFORT              TAR-PAMLICO              880209        940           316037           60441               YES,HETERCCAPSAPROROCENTRUM
                                                        DURHAM)
               PAMLICO RIVER                            PR-95 (NR DURHAM CR)   BEAUFORT              TAR-PAMLICO              880209        140           56996            14604               YES,HETERCCAPSAPROROCENTRUM






                                                                                                                  APPENDIX 2.                  ALGAL BLOOMS 1984-1990


                  STUDY                                       STATION                    COUNTY                   RIVER BASIN                  DATE         CHL-a BIOVOLUKE                     DENSITY               BLOW                                                    FISH KILL?
                  PAMLIOORWR                                  02004534                   BEAUFORT                 TAR-PAMLICO                  680209          130           95500              23175                 YESHETEROCAPSAPROIX)CENTRUM

                  PUNWCREEK                                   PUNGOCR-11                 BEAUF0R`T                TAR-PAMLICO                  880303          34            64334              65682                 YEs.PnOROCENTRUM MINIMUM

                  DUCKCREEK                                   DUCK-3                     BEAUFORT                 TAR-PAMLICO                  880325          42            279311             19914                 YES,PRCROGENTRLA4 MINIMUM

                  HAVWKWSBEACH                                HAWKINS-i                  BEAUFORT                 TAR-PAMLICO                  880325          34            35261              34588                 YESPROROCENTRUM MINIMUM

                  PUNOOCREEK                                  PUNGOCR-1                  BEAUFORT                 TAR-PAMLICO                  800524          110           37310              5781                  YESOINOFLAGELLATES

                  PUNOOCREEK                                  PUNGOCR-2                  BEAUFORT                 TAR-PAMLICO                  880524          46            13256              5348                  YESDINOFLAGEULATES

                  PUNGOCREEK                                  PUNGO CR-3                 BEAUFORT                 TAR-PAMLIC0                  880524          34            2958               4979                  YES,DINOFLAGEULATES

                  PAMLICORrVER                                SWAN-5                     BEAUFORT                 TAR-PAMLICO                  880524          100           19661              143593                YES,SKELETONEMACOSTATUM

                  PAMILICORIVER                               BATH-MO                    BEAUFORT                 TAR-PAMLICO                  880527          20            5035               3581                  YES,DINOFLAGELLATES

                  PAMLICO RIVER                               CONTROL-B                  BEAUFORT                 TAR-PAMLICO                  880527          le            9302               6944                  YES.DINOFLAGELLATES

                  PAMILICORIVER                               PAM-MID                    BEAUFORT                 TAR-PAMLICO                  880527          19            6871               3808                  YESPINCIFLAGELLATIES

                  PAMLICO RIVER                               PAM-313                    BEAUFORT                 TAR-PAMLICQ                  880527          15            2669               2464                  YFS.DINOFLAGELLATES

                  PAMLIDOR.FVER                               PAM-9                      BEAUFORT                 TAR-PAMLICO                  880527          20            13551              7022                  YESDINOFLAGELLATES

                  DURHAMCREEX                                 UPDURHAM                   BEAUFORT                 TAR-PAMLICO                  880527          4             7764               3050                  YESDINOFLAGELLATES

                  PAML10ORrVER                                PAM-A (BATH MO)            BEAUFORT                 TAR-PAMLICO                  880603          ISIS          2567               1723                  N:)
          OD      PAMLIOORIVER                                PAM-14 (rG)                BEAUFORT                 TAR-PAMLICO                  880603          NS            1481               4425                  N3

                  PUNGOCREEK                                  PUNGO-264                  BEAUFORT                 TAR-PAMLICO                  880606          4             364                547                   N:)

                  PUNOORIVER                                  SCRANTON-11                BEAUFORT                 TAR-PAMLIC0                  880715          38            20251              7293                  YES,DINOFLAGELLATES

                  PAM   LIDORIVER                             MARKER 0 17                BEAUFORT                 TAR-PAMLICO                  880811          NS            1967               68827                 YES, CYCL SP2

                  KENNEDYCREFEK                               KC-1                       BEAUFORT                 TAR-PAMLICO                  880907          91            3868               12097                 YES,OUSMODISCUS, CRYPTOPHYrES

                  KENNEDYGREEK                                KC-2                       BEAUFORT                 TAR-PAMLICO                  880907          120           7377               23233                 YESOUSTHODISICUS. CRYPTOPHYTES

                  KENNEDYCREEK                                KC-1                       BEAUFORT                 TAR-PAMLICO                  880923          64            2529               22797                 YESCYCLOTELLA SP3, CRYPTCPHYTES

                  KE14NECYCAEEK                               KC-2                       BEAUFORT                 TAR-PAMLIC0                  880923          64            7203               37034                 YES,CYCLOTELLA SP3. CRYPTOPHYrES

                  PAMLICORfVER                                PAM-1    (TG)              BEAUFORT                 TAR-PAMLICO                  881017          NS            1967               68827                 YES,CYCLOTELLA SP2. CRYPTOPHYTES

                  PAMLICORWR                                  PAMI-2 (WHICHARDS)         BEAUFORT                 TAR-PAMLICO                  881017          NS            4876               9922                  NO. CRYPTOPHYTES, DINCIFLAGELLATES

                  RATH CREEK                                  BATH CR @ 264              BEAUFORT                 TAR-PAMLICO                  890106          42            NIA                                      WA, FILAMENTOUS CHL

                  WASTE LAGOON                                WSL                        GRANVILLE                TAR-PAMLICO                  890124          NS            N/A                                      YES, EUG-EUGLENA CAUDATA

                  PANTIEGOCREEK                               PANTEGO-1                  BEALIFORT                TAR-PAMLIC0                  890130          8             782922             12315                 YES, DIN-POLYKRIKOS

                  CHOC(WINITY BAY                             CHOC: BAY-1                BEALIFORT                TAR-PAMLICO                  890131          35            49231              31706                 YES. BAC, DIN

                  CHOGOWINITY BAY                             CHOC BAY-3                 BEAUFORT                 TAR-PAMLICO                  890131          20            16244              15,140                YES, W, DIN

                  SIDNEY CREEK                                SIDNEY-2                   BEALIFORT                TAR-PAMLICO                  890131          12            27924              44021                 YES, BAC, DIN

                  PAMLICORrVER                                PAMUPBR                    BEAUFORT                 TAR-PAMLICO                  890202          6             11823              11413                 YES, DIN. BAC. CRY

                  PAMLICORWER                                 OLD FORTA                  BEAUFORT                 TAR-PAMLICO                  890203          2700          271697             23932                 YES,DIN,ELIG

                  PAMLICORrVER                                OLD FOST-2                 BEAUFORT                 TAR-PAMLICO                  890203          580           83393              22709                 YES, DIN. ELIG







                                                                                                                APPENDIX 2. ALGAL BLOOMS 1984-1990


                   STUDY                                      STATION                   COUNTY                  RIVER BASIN                  DATE         CHL-a BIOVOLUNE DENSITY                                  BLOOM                                                  FISH KILL?
                   FARMPOND                                   FARM POND                 FRANKLIN                TAR-PAMLICO                  890208         NS            N/A                                     N/A F IL CHL-SPIROGYRA ZYGNEMA

                   PAMLICORFVER                               PAMLICO-3A                BEAUFORT                TAR-PAMLIC0                  890214         170           29038              12534                YES, DIN

                   PAMLICORIVER                               TEXASGULF                 BEAUFORT                TAR-PAMLICO                  890302         ISIS                                                  YES. DIN-POLYKRIKOS

                   PAMILICORIVER                              BLOUNTS-14                BEAUFORT                TAR-PAMLICO                  890530         72            9937               368590               YESBAC

                   PAMLIOORrVER                               NORTH-8                   BEAUFORT                TAR-PAMLICO                  890530         16            2415               f8779                YES,8AC

                   PAMLICORIVER                               PAM-15                    BEALIFORT               TAR-PAMLICO                  890530         78            5039               13190                YES,BAC

                   PAMLICO RIVER                              PAMLICCIA                 BEAUFORT                TAR-PAMLICO                  090602         130           5147               176259               YES.BAC-CYCL SP 2       3

                   PAMLICORIVER                               0208451950                BEAUFORT                TAR-PAMLICO                  890614         21            18475              447548               YES, BAC, CRY

                   BATH CREEK                                 02084534                  BEAUFORT                TAR-PAMLICO                  890614         26            17104              19355                YES, DIN. CRY, CHR

                   BONDCREEK                                  B060-1                    BEAUFORT                TAR-PAMLIC0                  890625         11            1311               10612

                   CAMPBELLCREEK                              CAMPBELL-1                BEAUFORT                TAR-PAMLICO                  890626         16            2746               15023                YES, BAC, DIN, CHR

                   CAMPBELL CREEK                             CAMPBELL-2                BEAUFORT                TAR-PAMLIC0                  890626         15            6436               37558                YES. BAC, DIN, CHR

                   BONDCREEK                                  BOND-2                    BE_AUFCRT               TAR-PAMLICO                  890628         100           N/A                10612                YES, DIN, BAC-NITZ ACI

                   PAMLIOORIVER                               BAYVIEW                   BEAUFORT                TAR-PAMLIC0                  890629         29            3491               42449                YES, BAC-CYCL SP2

                   PAMLICORFVER                               JAMACIA-1                 BEALIFORT               TAR-PAMLIC0                  890713         58            2345               35287                YES, BAC-CYCL SP2,CRY.EUGG
            01)
            0)     LAKE ROYALE                                LAKE ROYALE-2             GRANVILLE               TAR-PAMLIICO                 890714         NS                                                    YES, CYA

                   PAMLICORWER                                PAM-1                     BEAUFORT                TAR-PAMLICO                  890714         NS            1716               10796                NO, DINAAC

                   SOUTHCREEK                                 SOUTH-2                   BEAUFORT                TAR-PAMLICO                  890714         NS            42504              107607               YES, DIN, BAC

                   PUNGOCRI2EK                                PUNGOIA                   BEAUFORT                TAR-PAMLICO                  890718         31            8620               1316                 YES, DIN. EUG.

                   BLOUNTS BAY                                BLOUNTS-1                 BEAUFORT                TAR-PAMLICO                  890726         25            1986               59918                YES. BA"YCL SP2, CYXPHOR ANG

                   BLOUNTSCREEK                               BLOUNTS-2                 BEAUFORT                TAR-PAMLICO                  890726         31            3561               56076                YES,BAC-CYCL SP2, CYA-PHOR ANG

                   PAMLICO RIVER                              PAM-A                     BEAUFORT                TAR-PAMLICO                  890727         81            7280               164904               YES, BAC, DIN, EUG

                   SOUTHCREEK                                 SOUTH CR-l                BEAUFORT                TAR-PAMLICO                  890728         210           100646             45419                YES. DIN, BAC, CYA

                   SOUTHCREEK                                 SOUTH CR-2                BEAUFORT                TAR-PAMLICO                  890728         94            5099               35811                YES, DIN, BAC, CYA

                   LAKE ROYALE                                LAKE ROYALE-2             GRANVILLE               TAR-PAMLICO                  890807         50            4296               2795                 YES, CYA, CHL

                   PAMLICO RIVER                              STERLING                  BEAUFORT                TAR-PAMLICO                  890808         16            3401               13800                YES, DIN.13AC,CHI-CRY

                   PUNCOCREEK                                 CEE BEE MAR               BEAUFORT                TAR-PAMLICO                  890822         160           71212              14208                YES, DIN. BA"YCL SP2

                   PUNGOCREEK                                 PUNGOCRA                  BEAUFORT                TAR-PAMLICO                  891016         140           23714              67779                YES,PRY

                   PUNGOCREEK                                 PUNGOCR-5                 BEAUFORT                TAR-PAMLICO                  891016         63            17080              22273                YES, BAC. PRY. DIN

                   PUNGOCREEK                                 PUNGOCR-7                 BEAUFORT                TAR-PAMLICO                  891016         110           8435               12286                YES, CRY, BAC

                   PANTEOOCRFFK                               0208455850                BEAUFORT                TAR-PAMLIC0                  891017         ISO           15382              19652                YES@ CRY

                   PAMLICORIVER                               BATH-M0                   BEAUFORT                TAR-PAMLICO                  891019         19            2297               16421                YES, M. DIN

                   PAMLICO RNER                               MD(ON-M0                  BEAUFORT                TAR-PAMLICO                  891019         67            2965               3948                 YES, DIN. BAC

                   PANTEGOCREEK                               0208455850 (PANTEGO       BEAUFORT                TAR-PAMLICO                  891113         14            2430               3494                 NO, EUG@ DIN, CHR
                                                              CR






                                                                                                        APPENDIX 2.               ALGAL BLOOMS 1984-1990


                  STUDY                                   STATION                 COUNTY                RIVER BASIN               DATE        CHL-a        BIOVOLUNE          DENSITY              BLOW                                              FISH KILL?
                  SOMCF7EEK                               S=HCREEK                BEAUFORT              TAR-PAMLICO               691220        3            844              937                 NE)

                  CHOCOWINrrY BAY                         CHOCOl_I                BEAUFORT              TAR-PAMLICO               900305        52           17393            26028               YES, BAC-SKEL OCIS

                  PAMLICORrVER                            BACK CR-92              BEAUFORT              TAR-PAMLICO               900525                     6085             30046               YES. DIN

                  PAMLICORIVER                            M3r                     BEAUFORT              TAR-PAMLICO               900525                     2000             33190               YES, XAN,BACCRY

                  PAMLICORrVER                                                    BEAUFORT              TAR-PAMLICO               900525                     641              10132               YES, XAN,BAC,CHL

                  PAMLICORIVER                            PAM-BATH CR             BEAUFORT              TAR-PAMLIC0               900525                     1897             28474               YES, BAC,CRY

                  PAMLICORfVER                            TAR057G                 BEAUFORT              TAR-PAMLICO               900604        23           9955             46641               YES, DIN, BAC,CRY

                  PAMLIOORfVER                            TAR057GO85              BEAUFORT              TAR-PAMLICO               900604        15           713              26727               YES, BAC-CYCL SP2

                  PAMLICORIVER                            02084534                BEAUFORT              TAR-PAMLICO               900604        34           13577            88217               YES, XAN4:)LIS CAR,BA"YCL SP2

                  PAMLIOORIVER                            CHOOD-1                 BEAUFORT              TAR-PAMLICO               900604        31           2996             70224               YES, BAC-CYCL SP3. CRY

                  CANAL-FAR CREEK                         ENGtEHARD               RitE                  TAR-PAMLICO               900612        25           5780             97126               YES, BAC - CYCLOTELLA SP 2 & 3

                  PAMILIOORFVER                           TAR057G                 BEAUFORT              TAR-PAMLIC0               900718        62           6602             7017                YES,DIN,CYACRY

                  PAMLICORfVER                            PAM-WASH                BEAUFCffr             TAR-PAMLICO               900718        50           N/A                                  YES, CYA-MER TEN BREAKING UP

                  GREENVILLE UTILITIES POND               GREENVILLE LIT          PITT                  TAR-PAMLICO               900719                     N/A                                  FIL CYA-LYNG NANA, OSCI CHL,OSCI GEM

                  PAMLICOlArVER                           PAM-2A                  BEAUFORT              TAR-PAMLICO               900724        20           21354            29347               YES, OIN,CYA                                       YES

                  PAMILIDORIVER                           PAM-49                  BEAUFORT              TAR-PAMLICO               900724        27           3739             11412               YES, DIN,CYA                                       YES
           Do
                  PAMLICORfVER                            PAM-5C                  BEAUFORT              TAR-PAMLICO               900724        36           13414            21225               YES. DIRCYA                                        YES

                  PAMLICORfVER                            PAM-7D                  BEAUFORT              TAR-PAMLICO               900724        23           3414             24980               YES. DIN,CYA                                       YES

                  PAMLlO0RfVER                            PAM-10E                 BEAUFORT              TAR-PAMLICO               900724        85           36260            25675               YES, DIRCYA                                        YES

                  PAMLIODRFVER                            PAMUOOIR ACRES          BEAUFORT              TAR-PAMLICO               900726                     N/A                                  FILRHODCOMPSCIPOGCNOOERULEUS                       CRAB KILL

                  PLNWCREEK                               PUNGOCR-2               BEAUFCRT              TAR-PAMLICO               900801        62           11405            14616               YES. DIN.CRY.CYA                                   CRAB KILL

                  PUNOOCREEK                              PUNGD CA-5              BEAUFORT              TAR-PAMLICO               900801        28           2559             12985               YES, DIN,GRY,CYA                                   CRAB KILL

                  PUNGOCREEK                              PUNGOCR-8               BEAUFCRT              TAR-PAMLICO               900801        27           2634             10248               YES, DIN,CRY,CYA                                   CRAB KILL

                  PUNGOCREEK                              PUNGOCR-9               BEAUFORT              TAR-PAMLICO               900801        51           14505            12461               YES, DIN,CRY,CYA                                   CRAB KILL

                  PAMLICORIVER                            02084519505             BEAUFORT              TAR-PAMLICO               900802        a            1394             13844               YESXAN,CYADINCHR,BAC

                  BROADCREEK                              BROADCREEK              BEAUFORT              TAR-PAMLICO               900815                     N/A                                  MACRO ALGAE-NITELLA SP.

                  PAMLIOORFVER                            PAMLICO-5               BEAUFORT              TAR-PAMLICO               900827        60           15517            47515               YES,DN,CYA,BAC                                     CRAB KILL

                  PAMLICOFIFVER                           PAMLICO-6               BEAUFORT              TAR-PAMLICO               900827        32           4393             33278               YES.DIN,CYACRY                                     CRAB KILL

                  PAMLIODRIVER                            SUMMER-Al               BEAUFORT              TAR-PAMLICO,              900827                     4766             30134               YESDIN,CRY.BAC.CYA                                 CRAB KILL

                  PLtWCREEK                               PUNGOi                  BEAUFORT              TAR-PAMLICO               900829        31           2375             38780               YES,DIN,CYA,BAC                                    YES
                  GREENVILLE UTILITIES POND               GREENVIUJE LIT          PITT                  TAR-PAMLICO               901008                     NIA                                  FIL CYA-LYNG NANA, OSCI SP, CHL-CHLA SP

                  PAMLICORIVER                            HERAING-A               BEAUFORT              TAR-PAMLICO,              901219        21           6057             2853                YES, DIN-OXY MAR



                  NORTHESTCREEK                           @JACKSONVUE             ONSLOW                WHITE OAK                 841105                                                          ID, DINOFLAGELLATES







                                                                                                        APPENDIX 2.               ALGAL BLOOMS 1984-1990


                STUDY                                    STATION                 COUNTY                 RIVER BASIN               DATE         CHL-a BIOVOLUME DENSITY                              BLOOM                                               FISH KILL?
                NEWRIVER                                 WILSON BAY @ TAR        ONSLOW                 WHITE OAK                 85/8-10                                                           YESCYCLOTELLACRYPTOPHYTES                           YES
                MOTTCREEK                                LANDING                 ONSLOW                 WHITE OAK                 860731                      11810             43322               YES, OLISTHODISCUS

                PINE KNOLL SH@ CANALS                    PINE KNOLL-1            CARTERET               WHITE OAK                 890331         1500         4675              12857               YES,DIAT0MS-t4AV, MELO MON

                PINE KNOLL SH. CANALS                    PINE KNOLL-1            CARTERET               WHITE OAK                 880401         4            590               2679                NO. DIATOMS, CRY, DINOPLAGELLATES

                PINE KNOLL SH. CANALS                    PINE KNOLL-i I          CARTERET               WHITE OAK                 880401         NS           356               t584                ND

                PINE KNOLL SH. CANALS                    PINE KNOLL-2            CARTERET               WHITE OAK                 880401         3            367               1933                NO

                PINE KNOLL SH. CANALS                    PINE KNOLL-5            CARTERE t              WHITE OAK                 880401         1            240               792                 NO

                PINE KNOLL SH. CANALS                    PINE KNOLL-9            CARTERET               WHITE OAK                 880401         1            200               745                 NO

                HENDER90N POND                           HEND-1                  ONSLOW                 WHITE OAK                 880428         1            148               885                 NO

                HENDERSON POND                           HEND-2                  ONSLOW                 WHITE OAK                 880428         1 1          101               941                 NO

                BOGLE SOUNID                             BOGUE-1                 CARTERET               WHITE OAK                 880609         820          41427             147610              YES. BL-GR - GOMP APO

                LITTLE NORTHEAST CREEK                   0209317585              ONSLOW                 MITE OAK                  880621         1            302               978                 NO, SOME CHAYSOPH(TES

                LITTLE NE CREEK                          0209317585              ONSLOW                 WHITE OAK                 901002         44           1461              7570                YES. CHR-OCHR SP, BAC-MELOSIRA VAR



                ABBOTTS CR. @ SCUTHMONT                  0212160350              DAVIDSON               YADKIN-PEE DEE            840816         69           15901             80007               YES, BLUEIWEENS

                ABBOTTS OR. @ SOUTHMONT                  0212160350              DAVIDSON               YADKIN-PEE DEE            840926                      2579              16595               YES, BLUE-GREENS
         CD

                TWIN OAKS FARM POND                                              CAWRUS                 YADKtN-PEE DEE            850102                      5224              4651                YESFISIH KILI-BLUE-GREENS                           YES

                MOUNTAIN CREEK                                                   STANLEY                YADKIN-PEE DEE            850610                                                            ID, HYDRODICTYON MATS

                UT. TO WALNUT BRANCH                                             ROWAN                  YADKIN-PEE DEE            850626                                                            0,81LUE-GREENS, GREENS. EWLENCPHYTES                YES

                Ur TO WATSON CREEK                                               UNION                  YADKIN-PEE DEE            850828                      11125             5887                YES.GFIEENSALUE-GREENS                              YES

                ABIBOTTS CR. @ SOUTHMONT                 0212160350              DAVIDSON               YADKIMPEE DEE             850919         22           22663             164206              YES, BLUE-GREENS

                LASATER MILL POND                        LOWEREND                FORSYTH                YADKIN-PEE DEE            851003         14           908               1497                NO

                LASATER MILL POND                        UPPER END               FORSYTH                YADKfN-PEE DEE            05`1003        45           5456              5415                YES,ENRICHMENT

                SWEARING CREEK                                                   DAVIDSON               YADKIN-PEE DEE            851010         1            182               8944                NO

                ABBOTTS CR. @ COTTON GROVE               02121602                DAVIDSON               YADKIN-PEE DEE            851010         48           10792             44603               YES, 13LUE-GREENS

                AB801TS CR. @ COTTON GROVE               02121602                DAVIDSON               YADKfN-PEE DEE            851015         100          11544             86121               YESGREENS,DIATCMS

                LJTJORCHAI@IDSONCREEK                                            UNION                  YADKIN-PEE DEE            851022         400          24717             140332              YESBLUE-GAEENS                                      YES

                LACEY BRANCH                                                     UNION                  YADKIN-PEE DEE            860414                      15633             41226               YES, ENRICHMENT. CHRYSOPHYTES, CRYPTOPHYTES

                ABBO`TrS CA. @ SOUTHMONT                 0212160350              DAVIDSON               YADKIN-PEE DEE            860528         23           1965              12849               YES, BLUE'GREENS

                EVERETTS MILL POND                                               RICHMOND               YADKIN-PEE DEE            860616                      14927             5825                YES, BLUE GREENS

                ABIBOTTS CR. @ SCUTHMONT                 0212160350              DAVIDSON               YADKIN-PEE DEE            860619         31           5413              17673               YES@ BLUE GREENS

                ABBOTTS CR. @ SOUTHMONT                  0212`160350             DAVIDSON               YADKIN-PEE DEE            860724         100          12509             90138               YES, BLUE GREENS

                ABBOTTS CR_ @ SOLITHMONT                 0212160350              DAVIDSON               YADKIN-PEE DEE            860818         160          19652             163507              YES, BLUE GREENS

                SAM BENNET POND                                                  MECKLENBURG            YADKIN-PEE DEE            860827         300          2896              11704               YES, HYDRODICTYON MATS@ CYCLOTELLA






                                                                                                                              a.

                                                                                                      APPENDIX 2.               ALGAL BLOOMS 1984-1990


                 STUDY                                  STATION                  COUNTY               RIVER BASIN               DATE         CHL-a BIOVOLUME                 DENSITY             KOM                                               FISH KILL?
                 GRANTSCREEK                            NR HIGH ROCK LAKE        DAVID"               YADKIN-PEE DEE            860827         1            169              1223               NZ)

                 ABBOTTS CR. @ SOI.TTHMONT              0212160350               DAVIDSON             YADKIWPEE DEE             860904         88           21085            110402             YES, 13LUE GREENS

                 ABBOTTS CR. @ SOLTTHMONT               0212160350               DAVIDSON             YADKIN-PEE DEE            861002         68           13074            106559             YES. 13LUE GREENS

                 STRINGER POND                                                   FORSYTH              YADKIWPEE DEE             861015                      936              3952               NO, ELMLYNG                                        YES

                 TOWNCREEK                              0212140080               ROWAN                YADKIN-PEE DEE            861106         210          30611            190059             YES, DIATOMS

                 LrrTOBEAVERCR                          UT TO BEAVER OR.         IREDELL              YADKIN-PEE DEE            870422                                                          NO, FLINGLIS

                 ABBOTTSCR.@SWtHMONT                    0212160350               DAVIDSON             YADKIN-PEE DEE            870422         3            265              606                NZ)                                                YES

                 ABBOTTS OR. @ SOIJTHMONT               0212160350               DAVIDSON             YADKIN-PEE DEE            070526         33           4827             22069              YES@OSCIGEM

                 ABBOTTS CR. @ SafrHM0NT                0212160350               DAVIDSON             YADKIN-PEE DEE            870624         29           5859             38955              YES, OSCI GEMANABS RAC

                 ABBOTTS OR @COTTON GROVE               02121602                 DAVIDSON             YADKIN-PEE DEE            870720         66           14322            188312             YES, OSCI GEM ANABS

                 ABBOTTS CR. @ SOIAW                   0212160350               DAVIDSON             YADKIN-PEE DEE            870720         29           8161             89440              YES, OSCI GEM ANABS

                 HIGHROCKLAKE                           NA. 02112140080          ROWAN                YADKIN-PEE DEE            870805         as           13074            31444              YES, FISH KILL CRYPTOPHYTES, ELIGLENOPHYTES        YES

                 TOWNCRIEEK                             0212140080               ROWAN                YADKIN-PEE DEE            870820         47           15256            92235              YES, OSCI GEMS. GREENS

                 ABBGrrS OR. @ SaJTHMONT                0212160350               DAVIDSON             YADKIN-PEE DEE            870825         57           12601            9`1536             YES,OSCIGEM.ANABS

                 ABBOTTS CR. @ COTTON GROVE             02121602                 DAVIDSON             YADKIN-PEE DEE            870914         12           4073             15722              YESOSCI GERIETC

                 ABBOTTS OR @ SWTHMONT                  02121603SO               DAVIDSON             YADKIN-PEE DEE            870914         36           13776            158965             YES. OSCI GEM. ANABS

                 ABBOTTS  OR @ SOLTTHMONT               0212160350               DAVIDSON             YADKIN-PEE DEE            871015         17           4733             .43089             YES, OSCI GEM. ANABS

                 ABBOTTS CA. @ SOUTHMON'T               0212160350               DAVIDSON             YADKI14-PEE DEE           871109         70           987              12170              YES.ANKI FAL SP, ETC

                 TOWNCREEK                              0212140080               ROWAN                YADKIN-PEE DEE            871116         180          45519            204733             YES, DIATOMS

                 ABBOTITS CA. @ SOUTHMOW                0212160350               DAVIDSON             YADKIN-PEE DEE            871201         15           784              6376               N:)

                 ABBOTTS OR. @ SOLITHMONT               0212160350               DAVIDSON             YADKIWPEE DEE             880105         4            434              1234               w

                 UTTOJACOBSCR.                          JAC09-1                  STANLEY              YADKIN-PEE DEE            880125         NS                                               NOFUNGUIS

                 ABBOTTS CR. @ SOIffHMONT               0212160350               DAVIDSON             YADKIN-PEE DEE            880202         7            375              1351               N:)

                 ABBOTTS CR. @ SOIfrHMONT               0212160350               DAVIDSON             YADKIN-PEE DEE            880308         10           772              4049               N:)

                 ABBOTTS CA. 0 SOUTHMONT                0212160350               DAVIDSON             YADKIN-PEE DEE            880406         19           3664             17818              YES.DIATOMS, CHRYSOPHYTES, GREENS

                 ABBOTTS OR. @ SOUTHMONT                0212160350               DAVIDSON             YADKIN-PEE DEE            880518         51           1533             29522              YES,BL-GR - OSCI GEM. CRY

                 ABBOTTS CREEK CD POUNDERS FORK         HIGH ROCK-8              DAVIDSON             YADKIN-PEE DEE            880621         76           12736            17338              YES, CRY, EUG, GREENS, DIATOMS

                 ABBOTTS CA. @ COTTON GROVE             02121602                 DAVIDSON             YADKIN-PEE DEE            880621         120          25431            37907              YES.CRYPTOPHYTES

                 ABBIOTTS CR. @ COTTON GROVE            02121602                 DAVIDSON             YADKIN-PEE DEE            880621         250          31584            43089              YES,CRY. EUG, GREENS, DIATOMS

                 ABBOTTS  CR. @ SOUTHMONT               0212160350               DAVIDSON             YADKIN-PEE DEE            880621         38           2537             30046              YES,I3L4GR ANIABS. ANAB, OSCI GEM LYNG

                 ABBIDITS OR. @ COTTON GROVE            02121602                 DAVIDSON             YADKIN-PEE DEE            880714         3            876              3552               NO

                 ABBOTTS CA. @ SOLITHMONT               0212160350               DAVIDSON             YADKIN-PEE DEE            880714         91           13115            15719              YES,BL-GR OSCI GEM,ANABS RAC

                 ABBOTTS CR. @ COTTON GF40VE            02121602                 DAVIDSON             YADKIN-PEE DEE            8808,11        9            366              2795               N:)

                 ABBOTTS OR @ SOMMONT                   0212160350               DAVIDSON             YADKIWPEE DEE             880811         89           2977             69525              YES.13L-GR 09CI GEMANABS RAC







                                                                                                        APPENDIX 2.                ALGAL BLOOMS 1984-1990


                 STUDY                                   STATION                  COUNTY                RIVER BASIN                DATE        CHL-a        BIOVOLUME           DENSITY              BLOOM                                              FISH KILL?

                 AMOTTS CA. @ COTTON GROVE               02121602                 DAVIDSON              YADKIN-PEE DEE             880915        24            3456             9782                NO

                 AWCFrTS CA 0 SOMMOW                     0212`160350              DAVIDSON              YADKIN-PEE DEE             8809115       64            6374             71272               YESAL-GR OSCI GEM,ANAB SPI

                 Anoom CA. @ COTTON GROVE                02121602                 DAVIDSON              YADKIN-PEE DEE             881010        3             884              2702                NO

                 ABBOTTS OR @ SOUrHMONT                  0212160350               DAVIDSON              YADKIN-PEE DEE             881010        34            5961             62887               YES,BL@GROSCIGERWLOGRA

                 moom OR @ SOUTHMONT                     0212160350               DAVIDSON              YADKI14-PEE DEE            881108        32            2SO              3843                YES,ANKICON,CHLLAVUL

                 ABBOrrS OR @ SOUrHMONT                  0212160350               DAVIDSON              YADKIWPEE DEE              881205        4             390              3098                NO

                 ABBOM CREEK                             0212160350               DAVIDSON              YADKIN-PEE DEE             890504        19            999              10446               YES, W, CRY

                 T(NWICREEK                              0212140080               ROINAN                YADKIN-PEE DEE             890522        21            7606             25621               YES, CRY, W, CHL

                 AR80rrS CREEK                           02121602                 DAVID90N              YADKIN-PEE DEE             890607        75            4017             16595               YES, CRY, CHL

                 ABBOTTS CREEK                           0212160350               DAVIDSON              YADKIN- PEE DEE            890607        33            6972             16013               YES,CYACHR

                 RICHARDSON CREEK                        RICHARDSON               UNION                 YADKIWPEE DEE              890612        13            N/A                                  NIA FIL CHIL-ULOTHRIX

                 ABOUTTS CREEK                           02121602                 DAVIDSON              YADKIN-PEE DEE             890706        21            6743             60761               YES,CYACRY

                 ABBOTTS CREEK                           02112160350              DAVIDSON              YAOKIWPEE DEE              890713        18            3652             38955               YES, CYA-OSCI GEM, ANIASS RAC, BAC

                 MEYERSOOLFCOURSE                        MEYERSGOLFA              MECKLI143JRG          YADKIWPEE DEE              890718        7             395              2253                N/AFILAMENTOUSCHL

                 WHAUSERCREEK                            SWELDS-1                 DAVIE                 YAD)(XLPEE DEE             890719        35            11955            44021               YES. CYA

                 VAJFORD POND                            WILIFORD-1               ROWAN                 YADKIWPEE DEE              890726        56            9918             7395                YES, ELIG

                 ASHLEY POND                             ASHLEY-1                 YADKIN                YADKIN-PEE DEE             890731        NS            11772            19303               YES, EUG, CHL

                 ABBOTTS CREEK                           0212160350               DAVIDSON              YADKIWPEE DEE              890803        40            3939             30483               YES, CYAOSCl GEM, ANABS RAC

                 LAKE TOM-A-LEX                          YAD1600                  DAVIDSON              YADKIN-PEEDEE              8908t6        44            5062             163511              YES, CYACRY.EUGCHR, CHL

                 LAKE TOM-A-LEX                          YAD161 I-A               DAVIDSON              YADKIN-PEE DEE             890816        20            13051            38897               YES, CYACRY,EUGXHR, CHL

                 ABEIOTTS CREEK                          02121602                 DAVIDSON              YADKIIIJ-PEE DEE           890913        25            9703             62535               YES, CHR, CYA, CHL

                 ABBOrTS CREEK                           0212180350               DAVIDSON              YADKIN-PEE DEE             890913        52            9526             104113              YES, CYA-OSCI GEM. ANA13S RAC, BAC, CHL

                 DUTCHMAN POND                           DUTCHMANA                DAVIE                 YAOKIN-PEE DEE             900201        16            82               442                 N:)

                 HANES PONDS                             HANES-1                  DAVIE                 YADKIWPEE DEE              900725        90            3265             20962               YES. CHL-ANKI FAL MI

                 HANES PONDS                             HANES-2                  DAVIE                 YADKIN-PEE DEE             900725        ill           2684             1922                NO. Rff ENRICHED







             APPENDIX 3.


                         DESCRIPTION OF SEVERAL ALGAL CLASSES

             Cyanophyceae      CYA - (blue-greens or cyanophytes)    This most
                   primative class of algae can be found anywhere other algae
                   exists. They have evolved features that allow them to occupy
                   more diverse habitats than any other group of plants. Some
                   species are capable of forming surface blooms. The presence of
                   phycobilin pigments phycocyanin (blue) and phycoerythrin
                   (red) in varying amounts, chlorophyll-a, and carotene give the
                   plants colors varying from green to blue-green, purple, red,
                   yellow or brown.

             Chlorophyceae - CHL - (greens or chlorophytes) A large class of
                   algae containing unicellular, colonial, and filamentous species.
                   Pigmentation in most species is similar to that in higher plants.
                   Starch contained within the cells turn dark blue-purple when
                   stained with iodine.


             Cryptophyceae - CRY - (cryptophytes or cryptomonads)        Most
                   species unicellular and motile. Pigmentation is similar to that
                   in the Dinophyceae.  Occur commonly and may be abundant in
                   the phytoplankton, especially during the cooler seasons.

             Xanthophyceae - XAN- (yellow-greens or xanthophytes)         May
                   have structures similar to those in the Chlorophyceae, but an
                   absence of starch and the presence of leucosin help distinguish
                   them.  Motile cells have unequal flagella. Widespread but
                   rarely abundant in N. C.

             Euglenophyceae - EUG - (euglenoids or euglenophytes)      Most are
                   motile and may produce powdery surface blooms especially in
                   the presence of high concentrations of organic nutrients.

             Chrysophyceae - CHR - (golden, golden-browns or chrysophytes)
                   Silica scales and spines are characteristic of some species.
                   Many species grow well in cold water.

             Bacillariophyceae - BAC - (diatoms or bacillariophytes)    Inhabit a
                   wider variety of habitats'than any group other than the
                   Cyanophyceae.   Most abundant in cool seasons but are present
                   year-round in rivers, streams, and lakes.



                                              93








              Dinophyceae - DIN - (dinoflagellates)   Motile cells partly or
                    completely encircled by transverse or' spiral groove. Two
                    flagella with one in groove and one behind the cell, give a
                    rotating forward motion.  Yellowish-green  to brown pigments
                    in chloroplasts. Group responsible for toxic "Red Tides".

              Prymesiophyceae - PRY - (golden flagellates      or prymesiophytes)
                    Some members of this class have structure unique to group
                    (haptonema) which has been described as    as attached
                    organelle.  Some are capable of heterotrophic growth by
                    saprophytic or phagotrophic means.

              Chlorornonadophyceae - CHM - (chloromonadophyte) A
                    distinctive biflagellate with a swimming flagellum positioned
                    forward and a trailing flagellum close to the cell. These cells
                    contain a distinctive green color with a reservoir located at the
                    anterior end of the cell. This algal class has been described by
                    Smith (1950) as "an isolated group whose systematic position is
                    uncertain".


              Rhodophyceae - RHO - (red algae) This class encompasses fresh
                    .water and marine species. In color they range from grey,
                    green, red and purple. Most genera reported from N.C. are
                    macroscopic.





















                                               94



















                                                                                                                                                                                                                                                                                                                             i




































                                                                                                                                                                                    I
                                                                                                                                                                                    14 -
                                                                                                                                                                                        t .                                                                                                                                  I


                                                                                                                                                                                                                                                                                                                              f,




























                                                                                                                                                                                                                                                                                                                             Al










                                                                                                                               I:j
                                                                                                                                    110181111010
                                                                                                                                         3 6668 14100 1869