Text

315(a) Demonstration:Chemical & Biological Characteristics of Lake Wylie,Sc,During First Yr of Operation of Units 1 & 2 of Catawba Nuclear Station
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Site:	Catawba
Issue date:	09/30/1988
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I CATAWBA NUCLEAR STATION J

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316 (a)

DEMONSTRATION :

TWO UNIT OPERATIONAL REPORT l

DUKE POWER COMPANY CHARLOTTE, NORTH CAROLINA l l

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SEPTEMBER 1988 l

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CATAWBA NUCLEAR STATION 316(a) DEMONSTRATION CHEMICAL AND BIOLOGICAL CHARACTERISTICS OF LAKE WYLIE, SC, DURING THE FIRST YEAR OF OPERATION OF UNITS 1 AND 2 0F CATAWBA NUCLEAR STATION December 1986 through November 1987 DUKE POWER COMPANY 1988

TABLE OF CONTENTS y l EXECUTIVE SUMARY i ,

TWO-UNIT OPERATIONAL DATA Background 1'1 Location and Physical Description 1- 1

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Data Collection Background 1- 2 Operating Data 1- 3 Temperatures 1- 3

( Flows 1- 4 Thermal Plume 1- 5 l Literature cited 1- 6 WATER CHEMISTRY i

Introduction 2- 1 Methods and Materials 2- 1 Sampling Lecations and Frequency ,

2- 1 In-Situ and Laboratory Methods 2- 2 Data Analysis 2- 2 Results and Discussion 2- 3 Precipitation 2- 3 Temperature.and Dissolved Oxygen 2- 3

[ Alkalinity ano pH 2- 5 Specific conductance and Turbidity 2- 5 Inorganic Nitrogen 2- 6 Phosphorus 27 g

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Pa21 Silica 2- 9 Mineral Composition 2- 9 Trace Metals 2-10 Summary 2-10 Literature Cited 2-12 PHYTOPLANKTON Introduction 3- 1 Methods and Materials 3- 1 Results and Discussion 3- 2 )

Phytoplankton Standing Crop 3- 2 Community Composition 3- 4 Summary 3- 8 Literature Cited 3-10 ZOOPLANKTON Introduction 4- 1 l Methods and Materials 4- 1 l

l Results and Discussion 4- 2 Standing Crop 4- 2 Community Composition 4- 4 Summary 4- 7 I

Literature Cited 4-10

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MACR 0 INVERTEBRATES

ntroduction 5- 1 ]

Meth;da and Materials 5- 1 ,

l Results and Discussion 5- 2 s

.P. age, Physical and Chemical Parameters 5- 2 Standing Crop 5- 3 Community Compositir 5- 4 Summary 5- 7 Literature Cited 5- 9 FISH Introduction 6- 1 Methods and Materials 6- 3 Sample Collection 6- 3 Data Analyses 6- 5 Results and Discussion 6- 6 Species Richness 6- 6 Species Composition and Relative Abundance 6- 7 Age and Growth of Bluegill and Black Crappie 6-10 Summary 6-11 Literature Cited 6-12 VOLUME 2: APPENDICES

e. -.eae e,g, ese'e EXECUTIVE SU R RY

1. This report is a requirement of the South Carolina Department of Heas6h and Environmental Control as specified in the NFDES permit (#SC0004278) for Catawba Nuclear Station. The study is also a requirement of the Federal Energy Regulatory Commission as specified in Article 35 of the Catawba-Wateree License 2232. The report summarizes the physico-chemical and biological characteristics of Lake Wylie for a one year I

period after Unit 2 attained a sustained capacity factor >50%, and '

compares it to preoperational data.

2. Because the thermal discharge from Catawba was predicted to exceed South Carolina Water Quality Standards (32.2*C and/or no increase greater than 2.8'C above ambient), the 316(a) Demonstration was re-quired by the NPDES permit. The objective of the variance from Water Quality Standards is to demonstrate that more stringent technology is l

not needed to protect the "indigenous fish, shellfish, and wildlife" of l 1

Lake Wylie. Although Catawba already has forced draf t cooling towers, j this study was conducted to determine if the thermal discharge had any j measurable significant adverse impact on the "fish, shellfish, a.ed wildlife".

3. The operational data were compared to bassline data collected in 1973-74 and 1983-84. A one year Unit 1 operational report was i

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submitted to South Carolina Department of Health and Environmental Control (SCDHEC) in 1987. lhis Unit 2 operational report summarizes the period December 1986 through November 1987.

4. The station operated at a 75.3% capacity factor during the Unit 2 Operational Study which is excellent compared to the nuclear industry average.

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5. Thermal plume survey results were conducted in February 1987 and August 1987 when the station was near 100% capacity. In February, the maximum difference between intake and discharge temperatures was 6.4'C.

The greatest reach of the plume was approximately 1.9 km downlake from the discharge structure. In August, a maximum dif ference of 3.0'C occurred between the intake and discharge.

6. The water quality of Lake Wylie, particularly in the vicinity of Catawba's intake, is relatively good. Lake Wylie is a productive lake, and has been classified "eutrophic" by the EPA and SC0 HEC. This classi-fication was primarily the result of the relatively large nutrient input from upstream sources. To date, no significant adverse effect of the nutrient loading has been observed. Routine water quality moni-toring of Lake Wylie since '1973 indicates no substantial chang'es' i'n water chemistry or water quality.

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7. Phytoplankton species exhibited a variety of seasonal distribution patterns. Maximum standing crop values were usually observed from June through September, with minimum values occurring during the winter. Lower standing crops were observed during the Unit 2 study, i

and were attributed to natural variability. Catawba operation did not appear to cause any long term or consistent impacts on the phytoplankton in the vicinity of the station.

8. Zooplankton standing crops and community composition were usually similar to results observed during the Unit 1 operational study and the Second Year Preoperational Study. The discharge sampling location l consistently demonstrated the highest zooplankton standing crops during all phases of the study. This was attributed to shallower net tows at that location. Year to year monthly variations in standing crop, community composition, and seasonal distribution were probably due to responses to external environmental factors, since no long-term or consistent changes have been observed due to the operation of Catawba, t

I 9. Benthic macroinvertebrate seasonal distribution differences between the operational and preoperational periods can be attributed to the l

l invertebrate ' patchy distribution and the high variability of their 1

population densities. Chironomids dominated densities during all l three studies. Considerable year to year variability among macro-l l

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i invertebrate standing crops has always been ooserved among Catawba monitoring studies. These are probably due to normal environmental variability in Lake Wylie coupled with the periodicity of sampling and occasional substrate variability.

10. Operation of both units of Catawba had no observable effect on electroffshing catches except during winter, when high catches of threadfin shad occurred at the discharge location. Threadfin shad instead of bluegill or redbreast sunfish were the most abundant species at the discharge location in January, probably attracted to the slightly warmer water temperatures.

Trap netting results of black crappie suggested that the operation of Catawba could be directly or indirectly attracting black crappie into l

the discharge area. Variability of year class strength was not apparently influenced by the operation of Catawba. Although growth dif ferences of bluegill among locations and years were observed, these differences were not related to the operation of Catawba. Growth of black crappie did not appear related to operation of Catawba. ,

Sampling with electrofishing, gill nets, rotenone, trap nets, and push f nets at various locations was conducted during the operation of both f f'

units of Catawba. The fish community of Lake Wylie was comprised primarily of shad, catfishes, sunfishes, largemouth bass, and crappies. ]

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The fish community during the two-unit operational study did not appear to be different from the community before both units of Catawba were operating. Operation of Catawba appears to attract threadfin shad into i

the discharge area during the winter and may be attracting black crappie in the fall. Growth of bluegill and black crappie was un- .

related to the operation of Catawba.

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i i-CHAPTER 1: TWO-UNIT OPERATING DATA

Background

This report documents the water chemistry and biological characteristics of Lake Wylie for two separate one year baseline study periods (1973-74 and 1983-84) prior to the operation of Catawba Nuclear Station, and a one year study period after start-up of Unit 2 (1986-87). The study is a requirement of the South Carolina Department of Health and Environmental Control for a 316(a) Demonstration as specified in the NPOES permit for Catawba Nuclear Station. The report is also a requirement of the Federal Energy Regulatory Commission as specified in Article 35 of the Catawba-Wateree License 2232.

Mcation and Physical Oescription Catawba Nuclear Station is a two-unit, 2258 MW, nuclear station located on Lake Wylie near Charlotte, North Carolina (Figures 1-1 and 1-2). Unit 1 began commercial operation on June 29, 1985 and Unit 2 began commercial operation on August 19, 1986. The locations of Catawba's intake and i

discharge points are shown in Figure 1-3.

4 Lake Wylie was created in 1904 by the Sot.thern Power Company, with the s

construction of a dam on the Catawba River for hydroelectric power production. Duke Power Company increased the original impoundment acreage in 1925, when the dam was raised 50 ft (15.2 m) and a new 60 MW, hydroelectric facility was completed.

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l At full pond elevation of 569.4 ft (174 m) above mean sea level, Lake Wylie has a surface area of 12,455 acre;, (50 km ),2 a shoreline of 327 miles (526 km), a volume of ?81,900 ac-f t (3.46 x 10 m ),3 and a mean depth of 22.5 f t 7 2

(6.9 m). Its total watershed is approximately 3,020 mi2 (7,818 km ), which ,

yields o average flow of 4,500 cfs (116 m/s) through Wylie Dam, resulting in a theoretical retention time of 32 days. Since 1950, the maximum lake d'awdown has been 9.5 f t (2.9 m). The current Federal Energy Regulatory Commission license for Wylie Hydro permits a maximum drawdown of 20 f t (3. 0 m). Maximum drawdown of Lake Wylie averages approximately five feet ,

4 (1.5 m) annually. The primary sources of water for Lake Wylie are Mountain Island Lake (Catawba River), South Fork Catawba River, and other tributary a

creeks whien respectively contribute approximately 60%, 20%, and 20% of the total flow.

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, Data Collection Backaround Industrial Bio-Test Laboratories, Inc. (Bio-Test 1974), a consultant to

. Duke Power, performed water quality and biological studies on Lake Wylie [

for one year in 1973-1974. The Bio-Test data and the data collected in [

1983-84 were used to assess year-to year variation in Lake Wylie data prior l to the operation of CNS. Interim water quality studies were conducted by Duke Power to "bridge the gap" between the Bio-Test study and the second year preoperational study. Duke has nreviously submitted to SCOHEC a "316(a) Demont,tration Preoperational keport" and a "316(a) Demonstration j Unit 1 Operational Report". i l

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Lake Wylie's biological and chemical characteristics have been studied by other consultants to Duke Power, most notably Weiss et al. (1975). Other i l

special purpose, short-term reconnaissance efforts have been performed by ;

the Company to document algal blooms, natural die-offs of Corbicula, taste r

and odor observations, and other environmental studies.

Operating Data L

t Unit 2 began commercial operation on August 19, 19CS. The requirements of ,

the NPOES permit stated that the Un't 2 operational period for the 316(a) '

Demonstration would begin when Unit 2 attained 50% power. For the purposes of the 316(a) Demonstration, sampling began in December 1986 and continued through November 1987. The average capacity factor during the Unit 2 operational period was 75.3%. Sampling dates relative to the daily capacity factor of the station are provided in Figure 1-4, based on the formula:

Daily Capacity Factor (%) = Megawatt hours Generated X 100 2258 Megawatts x 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months i

Temperatures 0

The NPDES permit allows a temperature rise (AT) of 7.3 C (13.2 F) from April through September, and 20.1 C (36.1 F) from October through March i (Figure 1-5), as a monthly average. Notably, the daily average and the monthly average AT's have been considerably less than the AT temperatures allowed in the NPOES permit (Figure 1-5). The highest daily mean AT was 1-3

6.5 C for the period April through September (1987), whereas the highest monthly mean AT (NPDES-reported value) was 1.9 C (Table 1-1). From October through March, the maximum 24-hour mean and average monthly AT's were 7.8 C and 4.6 C, respectively (Table 1- 1) . South Carolina's Water Quality Standard for temperature in Class A waters is a maximum of 32.2 0 (90 F),

and waters shall not be increased more than 2,8 C (5 *F) above natural temperature conditions, unless a different temperature standard has been established, a mixing zone has been established, or a Section 316(a) determination under the Federal Clean Water Act has been completed. Thus, this 316(a) Demonstration was required by SCDHEC because AT values exceeded j 2.8 C (5 F). Intake and discharge temperatures during the Unit 2 operational period are shown in Figures 1-6 and 1-7.

Flows The volume of water withdrawn from Lake Wylie by the low pressure service 3 j water system varied considerably during the Unit 1 operational period.

Flows usually ranged between 50,000 and 70,000 gpm (Figure 1-8). This system is designed to supply service water for various makeup and cooling functions. Makeup water to replace the condenser circulating water lost to

, evaporation, blowdown, and drift is supplied by this system.

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Thermal Plume, Two surveys were made of the thermal plume discharged from CNS into the Big Allison Creek arm of Lake Wylie. The dates of these surveys were February 10 and August 6, 1987. Temperature measurements were taken at one-meter depths at transects perpendicular to the expected direction of flow.

Fifty-five locations were sampled on February 10 and fifty-three locations were sampled on August 6 (Figures 1-9 and 1-10). Temperature was measured at the CNS intake during both surveys. The location of the plume was determined by determining the difference between the temperatures at the l discharge and the intake, and adjusting for any solar heating during the l day. <

On February 10, the plume was evidenced by discharge temperatures measurably higher than the intake. These higher temperatures occurred only [

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in the top two meters of the water column (Table 1-3). The maximum j difference between intake and discharge temperatures was 6.4 C at Location !

F-1, nearest to the RL discharge structure. The greatest reach of the ;

l plume was approximately 1.9 km downlake from the RL structure, where it fell below 2*C above the intake temperature (Figure 1-11). !

Temperatures on August 6 showed a maximum difference of 3.0'C between the j i

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intake and discharge temperatures (Table 1-4). As in February, the plume f i

j appeared to be confined to the top two meters of the water column. The j i leading edge of the plume extended only 1.1 km from the RL discharge structure, reaching just past the bridge, where it dropped below a 1'C ;

) increase from the intaks temperature (Figure 1-12). [

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LITERATUkE CITED i

Industrial Bio-Test Laboratories, Inc. A bat eline/ predictive environmental e investigation of Lake Wylie: Catawba Nuclear Station and Plant Allen. ;

Rept. to Duke Power Company. 2 Volumes. 743P,; 1974 ,

t Weiss, C. M.; Campbell, P. H.; Andercon. T. P. ; Phaender, S. L. The Lower Catawba Lakes. Characterization to phyto- and zooplankton communities and their relationships to environmental factors. Dept. Environ. Sci.

and Eng. Univ. North Carolina, Chapel Hill. ESE Pub. No. 389. 396p.: >

1975. l 1

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TABLE 1- 1. AVERAGE MONTHLY AT AND MAXIMUM 24-HOUR MEAN AT (F DEGREES)

FROM APRIL 1985 THROUGH NOVEMBER 1987.

Average Monthly AT Maximum 24-HOUR MEAN AT 1985 April 3.3 20.3 **

May 0.7 4.5 June - 1. 2 1. 7 July 0.2 2.4 August 0.9 3.1 September 1. 6 3.4 October 1. 8 4.1 November 1. 3 4.1 December 4.2 6.0 1986 January 4.5 6.3 February 4.9 8.3 March 2.6 5. 6 April 0.4 4.2 May 1. 0 4.4 June -1.2 1.8 July C. 7 3.1 August 2. 5 4.3 September -0.1 2.8 October 1. 7 4.0 November 2.5 5. 7 Average monthly 6T = sum of 24-hour mean AT + Number of days per month.

24-Hour mean AT = sum of hourly AT + 24 NOTE: April ard May 1985 data were obtained as daily grab samples.

- Recording error or equipment malfunction is believed to have caused the extraordinarily high AT. The next highest value for April 1985 was 7.5.

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TABLE 1-1. Continued Average Monthly AT Maximum 24-HOUR MEAN g 1986 December 2.9 5.9 1987 January 4.6 7.8 February 4.1 6.8 March 0.0 7.3 April 1.9 6.5 May -0.1 4.0 June -0.7 1. 6 July -2.2 0.7 August -2.7 - 1. 0 September 0.1 2.1 October -1.3 3.1 November 2. 3 6.2 1-8 l

TABLE: 1-2. Catawba Nuclear Station Monthly Average and Daily Maximum Discharge Temperatures for the Period April 1985 through November 1987 Monthly Avg. Daily Maximum Discharae Temp 'F('C) Discharge Temp *F(*C) 1985 April 69.2 (20.7) 80.5 (26.9)

May 76.7 (24.8) 80.9 (27.2)

June 81.4 (27.4) 85.0 (29.4)

July 84.4 (29.1) 87.2 (30.7)

August 84.4 (29.1) 86.4 (30.2)

September 82.8 (28.2) 87.9 (31.1)

October 73.5 (23.1) 76.5 (24.7)

November 64.3 (17.9) 67.3 (19.6)

December 52.4 (11.4) 62.0 (16.7) 1986 January 44.3 (6.8) 46.1 (7.8)

February 48.4 (9.1) 52. J (11.6)

March 54.8 (12.7) 66.2 (19.0)

April 66.4 (19.1) 70.7 (21.5) ttay 75.2 (24.0) 78.9 (26.1)

June 82.6 (28.1) 86.1 (30.1)

July 89.1 (31.7) 92.3 (33.5)

August 87.5 (30.8) 90.4 (32.4) l September 79.1 (26.2) 81.5 (27.5)

Octcber 74.3 (23.5) 81.2 (27.3)

November 64.0 (17.8) 68.4 (20.2) l l

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TABLE 1-2. Continued Monthly Avg. Daily Maximum Discharge Temp FC C) Discharge Temp F( OC)

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4 1986 December 58.0 (14.5) 60.5 (15.9) 1987 l January 54.3 (12.4) 58.1 (14.5) '

I j February 54.6 (12.6) 59.7 (15.4) l March 57.0 (13.9) 64.9 (18.3) j April 68.2 (20.1) 74.4 (23.6) i i May 78.1 (25.6) 82.1 (27.9) l June 86.0 (30.0) 88.1 (31.2) l 2 July 88.8 (31.5) 91.4 (33.0)

August 88.3 (31.3) 91.6 (33.1) -

t September 85.3 (29.6) 87.8 (31.0) i October 70.9 (21.6) 80.4 (26.9) ;

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l November 62.8 (17.1) 66.3 (19.1) [

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Table 1-3. Temperatures (*C) measured in Lake Wylie during the thermal plume surv:y at the Catawba Nuclear Station discharge, February 10, 1987.

P-t 3-1 1-3 E-2 1-1 f-! G-1 8-I E-2 E-3 G-1 1-1 I-2 I 3 J-I J-2 1-1 L-1 L-2 L-3 E-1 E-1 E-2 E-3 0-4 0-3 0-2 0-1 Loc 1TIod fla6 slet 9915 0923 9925 litt 8915 895518601845 till 1815 till 182318381935 litt 1858195319551196112 .

= arts (n) 8.4 1.2 s.e s.3 6.4 f.8 7.8 6.112.813.1 11.512.5 u.a 12.411.812.512.311.311.718.811.711.1 11.611.910.418.611.2 I.4 8.3 8.2 8.2 7.9 8.5 8.4 6.4 1.8 7.0 6.9 12.3 13.1 18.6 11.6 11.8 8.8 12.8 18.8 11.8 11.1 18.4 18.2 II.B 18.5 10.1 11.2 11.6 10.2 9.1 II.B 8.38.8 8.8 8.2 8.1 8.1 9.6 11.1 f.9 1.8 T.T f.3 f.9 7.1 7.1 1.5 2 6.4 6.9 6.9 6.9 12.1 19.6 f.8 8.8 8.0 12.4 7.8 f.9 7.9 8.9 1.3 8.11.81.11.61.31.11.61.67.2 3 6.8 6.9 6.9 6.9 12.1 9.5 1.8 f.8 f.8 18.1 I.I I.s 1.7 7.6 f.6 1.2 1.4 7.5 1.5 1.1 6.4 6.9 6.9 6.9 12.4 7.8 T.8 T.8 f.8 f.I 1.51.61.51.21.31.4 1.0 4

7.8 7.5 1.5 6.4 6.1 6.9 6.3 f.8 f.4 T.2 f.I f.t 5

f.8 f.6 1.4 6 6.4 6.9 1.4 f.3 7.1 7.2 7.2 1 6.4 6.9 f.3 1.0 T.2 a 6.9 7.2 6.9 7.1 9 6.9 6.9 f.1 10 6.9 11 6.9

-. 12 6.9 13 6.9

- 14 6.8 15 6.1 16 6.1

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LOCATIod F-1 F-2 f-l 9-1 G-2 1-1 3-2 I-3 3-4 I-5 $-4 5-3 $-2 5-1 T-3 T-2 T-1 3-1 5-2 3-3 T-1 E-1 3-2 s-3 1-1 T-I T-2 fint 1233 1216 1240 1255 1300 1189 1111 1316 Ille 1324 1140 1343 1341 1354 liedtill 1815 1423 1426 1438 tiffs (R) s.3 s.i 1.7 f.1 f.5 1.6 s s 1.4 7.2 s.3 7.9 7.s s.s 7.s 6.6 s.s 8.s e.2 8.1 18.2 s.5 s.t s.3 Is.1 s.1 s.s 10.3 s.:

1 f.9 7.8 8.9 6.9 6.5 t.8 8.8 8.1 8.418.2 8.3 3.3 8.2 9.1 8.4 8.1 9.1 8.5 8.2 B.2 9.6 1.1 1.4 1.5 0.8 7.4 1.2 f.7 f.! 7.9 6.6 6.3 f.9 f.9 8.8 *8.3 9.4 f.9 8.9 8.2 8.5 8.2 8.6 9.8 I.3 B.2 8.1 9.2 1.1 1.4 1.2 8.8 7.4 1.1 4

2 1.5 7.5 1.9 6.3 6.1 f.8 f.7 8.3 8.5 7.3 1.6 8.2 8.1 f.9 f.9 8.5 s.3 8.2 8.8 8.1 1.1 1.4 7.0 3.3 T.81.3 f.8 1.3 3

f.4 f.5 f.5 f.4 f.2 f.5 7.8 8.4 7.4 7.4 8.2 0.1 1.4 s.1 1.1 6.9 e 7.2 f.4 f.9 6.1 6.1 7.3 f.i 3.8 7.5 1.3 1.8 5 7.1 f.3 1.4 1.3 1.3 1.5 1.3 1.2 1.6 1.5 7.8 1.3 7.2 1.4 f.2 f.2 T.3 1.3 1.2 T.3 T.! !.!

6 f.I 7.2 f.4 1.11.2 6.9 f.! f.3 7 1.2 7.2 1.2 7.3 7.2 1.1 1.2 1.2 T.0 f.! 1.2 f.I 1.1 f.2 1.1 7.1 f.I 8 f.8 1.8 f.1 6.T 6.8 6.1 1.2 1.8 1.8 1 6.1 f.8 le 6.7 7.9 11

Table 1-4. Temperatures (*C) measured in Lake Wylie during the thermal plume survey at Catawba Nuclear Station discharge, August 6, 1987.

W ATIDE C-1 3-1 f-l G-1 1-1 E-2 E-3 1-1 1-2 1-3 J-l J-2 I-1 5-1 1-1 L-2 1-3 8-1 3-2 3-1 0-1 0-2 0-3 0-4 P-1 r-2 t-3 t-4 Tint 8948 8958 IIII 182118311335183819411844184918541858 till 1111112311311137 litt litt 1155 1200 1295 1215 1228 1249 1 IEPTI15}

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19.2 21.4 29.5 21.5 21.4 29.5 21.4 21.1 7 21.5 21.5 21.5 21.8 21.3 21.4 21,5 29.2 29.3 21.2 21.6 - 21.5 21.6 21.4 21.2 29.6 21.E t 21.4 21.2 21.2 21.3 21.3 29.2 29.4 28.5 29.9 28.1 21.4 21.1 21.2 21.1 21.5 21.5 1 29.3 28.8 29.8 21.1

- 8 21.1 28.5 28.1 21.2 21.1 21.0 21.5 21.4 II 28.1 28.6 28.5 .

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Capacity factor: 100.2%

AT: 6.4'C Discharge temperature: 12.0'C Discharge flow: 49.230 gpm

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1-26

I Capacity factor: 98.31 AT: 3.1*C ,

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CHAPTER 2: WATER CHEMISTRY INTRODUCTION The Catawba Nuclear Station Two-Unit Operational Study was initiated in December 1986, and was terminated in November 1987. An interim water quality monitoring program was conducted to provide continuity between the year long preoperational studies. Data for the period 1974 through April 1984 have been reported by Duke Power Company (1977a,1978,1979,1980,1981,1982,1964a, 1985). The Preoperational Study for Catawba Nuclear Station incorporated the period May 1983 through April 1984 (Duke Power Company,1985), and evaluated the chemical and physical characteristics of Lake Wylie. Appendices 2-1 through 2-13 include raw data for the two-unit operational period.

The objectives of this operational water quality study in the vicinity of the Catawba Nuclear Station were to:

(1) document spatial and temporal variability in physicochemical data for the intake and discharge area during the two-unit operational period, and (2) compare the water quality data during the Two-Unit Operational Study with the preoperational (1983 through 1984) and baseline (1973 through 1974) periods.

METHODS AND MATERIALS Samplino Locations and Frequency During the Two-Unit Operational Study, in-situ profile data and water samples for laboratory analyses were collected monthly at three locations on Lake Wylie (Figure 1-2; Table 2-1). Water samples for trace element analyses were collected quarterly. Previous Lake Wylie water quality monitoring programs are indicated in Table 2-2, 2-1

In-Situ and Laboratory Methods ,

A Hydrolab water quality analyzer was used for all in-situ measures.iits taken ,

at 0.3 m and at one-meter intervals to 1.0 m above the bottom. Calibration procedures recommended by the Hydrolab Corporation (1973) were performed during each sampling. During the operational study, a vertical Kommerer sempler was used to collect samples for laboratory analyses. Samples ware collected at 0.3 m and at five-meter intervals to 1.0 m above the bottom.

All samples were stored in acid-washed linear polyethylene bottles and !

preserved by placing on ice or by adding a preservative to extend the holding time until analyses and/or filtrations could be performed (Table 2-3).

The chemical and physical variables, analytical methods, references, and preservation techniques are included in Table 2-3. The detection limits are also documented in Table 2-3. The analytical methods are approved by the USEPA (1976, 1979, 1983), and all analyses were subjected to quality control procedures recommended by USEPA (1979). The laboratory is certified by the State of South Carolina, Department of Health and Environmental Control, to parform chemical and microbiological analyses for both water and waste water.

Data Analysis Data collected during the Two-Unit Operational Period were compared to data ecliected during the preoperational periods. The preoperational monthly or seasonal maximum and minimur. surface (0.3 m depth) values for selected vcriables, along with the corresponding Two-Unit operational surface values, wore plotted to indicate temporal variation. Where applicable, comparisons wore made to the baseline period (1973 - 1974), preoperational period (5/83-4/84), and the interim period (1/75-1/83).

2-2

Water quality data were subject 2d to descriptive statistics (m. -

4rs and minimum values) as outlined in SAS (1985). For statistical , ation, all analytical determinations recorded as less than the detection limit were set equal to the detection limit (Table 2-3). In discussing seasonal variability, the following designations were made: spring (May), summaa (August), fall (November), winter (February).

RESULTS AND DISCUSSION Precipitation The total rainfall for 1986, 26.8 in (68 cn), was the lowest recorded during the period 1975 through 1987 (Table 2-4) In 1987, the total rainfall increased to 39.5 in (100 cm). For the period 1975 through 1987, the average total precipitation was 47.2 in (120 cm). The 1986 and 1987 total precipita-tion amounts were 57% and 84% of this average total precipitation, respec-tively. The highest rainfall during the two-unit operational period occurred during January, February and March, 13.7 ir. (35 cm), with the lowest rainfall during April Hay and June, 6.4 in (16 cm).

Lake Wylie is influenced by surface runoff af ter heavy rainfall. Effects of this runof f may persist downstream to the Lake Wylie Dam (Industrial Bio-Test 1974).

Temperature and Dissolved Oxygen Piring the Two-Unit Operational Study, the CNS intake and discharge arJas exhibited similar thermal and dissolved oxygen regimes. Maximum temperatures occurred in August, and minimum temperatures occurred in January. The surfa*;e temperatures in the main lake, both above and below CNS, displayed similar seasonal variations (Figure 2-1).

2-3

Surface water temperature within the study area during the Two-Unit Operational I

Period ranged from 6.8'C (Location 210.0) during February to 30.5'C (Location 215.0) during August (Figare 2-1; Table 2-5). Spatial variation in surface temparatures was minimal, with the maximum surface temperature dif ference (3.0*C) during the Two-Unit operational period observed in February 1987 b: tween Locations 210.0 and 215.0 (Figure 2-2). Temporal variations in temperature from December 1986 through November 1987 closely followed patterns established during the preoperational period. Temperature exceeded the base-line range only on one occasion, during September at all three locations.

Seasonal temperature profiles for Locations 210.0, 215.0, and 220.0 are presented in Figures 2-3, 2-4, and 2-5. These figures indicate that tne thermal regimes for the Two-Unit operational period were similar to those observed during the preoperational period, with no major excursions beyond the mtximum and minimum range 0,termined during the baseline period.

The maximum surface to bottom temperature gradient (15.6*C) was observed during the spring. Maximum temperature gradients for Location 210.0 (15'C)

I and Location 220.0 (15.2'C) occurred during the spring period.

t As with temperature, dissolved oxygen (00) concentrations displayed distinct seasonal variations (Figure 2-2). Dissolved oxygen concentrations in the surf ace (0.3 m) water ranged from 6.6 mg 1-1 (Location 220.0, Augu.t) to 11.0 mg 1-1 (Location 215.0, June; Location 220.0, January) (Figure 2-6). The j maximum surface water spatial 00 sariation (0.9 mg 1-1) was observed in January between Locations 215.0 (10.1 mg 1-1) and 220.0 (11.0 mg 1-8 ). Dissolved oxygen concentrations in the water column typically began to decline in the i spring, with bottom water 00 concentrations usually less than 5.0 mg 1-1 during i

I i

2-4 l

l the spring and summer periods. During the summer, anoxic conditions existed in the bottom waters at Locations 210.0, 215.0, and 220.0. As indicated above, the spatial and temporal DO trends during the operational year were similar to those observed previously (Figure 2-6) (Duke Power Company 1977a,1978,1979, 1980, 1981, 1982, 1984a, 1985, 1987; Industrial Bio-Test 1974). Seasonal dissolved oxygen profiles for the Two-Unit Operational Period (Figures 2-7, 2-8, 2-9) were similar between Lo:ations 210.0, 215.0, and 220.0. Dissolved oxy 0en profiles were similar to the preop 3 rational period, and generally were within the range of the baseline period.

Alkalinity and,gH During the Two-Unit Operational Period, surface alkalinity values ranged f rom 9 to 19 mg-CaC0 3+1-1 (Table 2-5). The pH vetues ranged from 6.8 (Location 215.0 in August) to 8.9 (Location 215.0 in May) (Figure 2-10; Table 2-5). The higher spring pH values in the surface waters may be attributed to photo-synthetic activity. Previous studies on Lake Wylie reported similar alkalinity and pH values (Table 2-5). Both pH and alkalinity values were similar among all locations during the operational period (Figure 2-11). Profile data for alkalinity were similar from surf ace to bottom and between locations (Appendix 2-3, 2-4).

Specific conductance and Turbidity During the Two-Unit Operational Period, specific conductance of the surface waters ranged from 54 to 166 paho+cm*1 among the three locations. (Figure 2-12; Table 2-5). Temporal fluctuations in specific conductance values were similar to those observed previously. Specific conductance values generally I increased f rom January through December (Figure 2-12) during the study period.

2-5

This increase has been observed previously (Duke Power Company 1984b).

Surface turbidity values during the Two-Unit Operational Paried ranged from 2.0 i

to 131 NTU (Table 2-5). The maximum turbidity (131 NTV) observed during the Two-Unit Operational Period was lower than the maximum turbidity value (250 l NYU) observed during the Interim Period (Table 2-5). During the Interim

, Period, substantially higher turbidity values were observed in June October, and January in the surface waters at Locations 215.0, 210.0. and 220.0 (Figure 2-13). During the Two Unit Operational Period, turbidity values were highest in March (Figure 2-14). The high March turbidity values may be attributed to precipitation events preceding the March sampling. Precipitation amounts of 0.85 inches (2.2 cm) were recorded over the two days prior to sampling (NOAA i

l 1987). This precipitation resulted in runoff that was reflected in Lake Wylie water quality at the time of sampling. As with the other parameters discussed, l

both conductivity and turbidity values were similar among all locations during l

the operational period (Figure 2-14). Profile data for turbidity and specific j conductance were similar from surface to bottom (Appendix 2-5, 2-6).

l Inoraanic Nitrogen

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During the Two-Unit Operational Study, the mean surf ace nitrate plus nitrite concentration was 0.15 myN 1-1, with concentrations ranging from less than

. 0.020 to 0.49 mg-N 1-1 (Figure t-15; Table 2-5). The trends recorded in the surface waters during the preoperational study have continued through the i

operational period (Table 2-5).

l l

Maximum concentrations of nitrate plus nitrite generally occurred in winter f cnd spring, and were associated with oxidizing conditions in the surface waters l

(Figure 2-15). During the summer, nitrate plus nitrite concentrations l

d2 creased f rom the high spring values, accompanied by decreased dissolved I

2-6

oxygen concentrations and reducing conditions. The minimum nitrate plus l

nitrite concentrations occurred in late summer (Figure 2-15). Little spatial variability between locations in nitrate plus nitrite concentrations was observed in the study area (Figure 2-17). The Two-Unit Operational Period nitrate plus nitrite seasonal trends were similar to interim and preoperational l periods (Figure z-15) (Duke Power Company 1977a, 1978, 1979, 1980, 1981, 1982, 1984a, 1985, 1987; Industrial Bio-Test 1974). Profile data for nitrate I

plus nitrate were similar from surface to bottom, and between locations during

! the Two-Unit operational period (Appendix 2-7).

The mean surface ammonia concentration for the December 1986 through November l 1987 period was 0.057 mg-N.1-1, with concentrations ranging from less than 0.020 to 0.180 mg-N.1-1 (Figure 2-16; Table 2-5). Higher surface ammonia l

concentrations were generally observed during the fall and winter (Figure 2-16). During the Two-Unit Operational Period, surf ace ammonia concentrations usually exhibited little spatial variability. Higher concentrations were observed, however, during September, October, and November at Location 210.0 (Figure 2-17). Profile data for ammonia nitrogen were similar from top to bottom, except for the summer months, during the Two-Unit operation 61 period.

During the summer months, near anoxic to anoxic conditions at the deeper depths created a reducing environment and a subsequent increase in ammonia nitrogen concentrations. This condition existed at all three locations (Appendix 2-8).

Phosphorus During the Two-Unit Operational Period, surf ace orthophosphate concentrations ranged from less than 0.005 mg-P.1-1 (Location 210.0, 215.0, 220.0) to 0.13 mg-P 1-1 (Location 220.0). The mean surface concentration was 2-7

0.029 mg-Pal-1 Spatial variations were generally similar between the Two-Unit Operational Period, and Preoperational and Interim periods (Figure 2-18).

Excursions above the interim maximum values were observed at all three locations in December, February, March, and April (Figure 2-18). The mean surface orthophosphate concentrations of all locations indicated a slight positive trend since the baseline period (baseline i = 0.013 mg-P 1-1, Pr operational Period i = 0.018 mg-P.1-1, Two-Unit Operational Period i = 0.029 mg-P.1-1) (Table 2-5). Profile data for orthophosphate were similar between locations during the Two-Unit operational period; however, concentrations increased with depth during the summer months due to the reducing environment present during this time period (Appendix 2-9).

Total phosphorus surf ace contentrations during the Two-Unit Operational Period ranged f rom 0.030 mg-P 1-1 (Locations 210. 0 and 215. 0) to 0.20 mg-P 1-1 (Location 220.0). The mean st rface concentration was 0.066 mg-P 1-1 As with orthophosphate, mean surface concentrations of total phosphorus for all locations indicated a positive trend since the interim period (Interim Period i = 0.038 mg-P 1-1, Preoperational Period i = 0.047 mg-P.1-1, Two-Unit Operational Period i = 0.066 mg-P 1-1) (Table 2-5). Spatial variations were similar between the Two-Unit Operational Period, and Interim and Preoperational Periods. Some deviations at all locations were apparent during November.

December, February, March, and April. These deviations exceeded the interim ccximum values (Figure 2-19). Total phosphorus concentrations were similar between locations (Figure 2-20). Profile data for tetal phosphorus were similar to orthophosphate during the Two-Unit operational period (Appendix 2-10).

Comparison of nitrogen to phosphorus concentrations indicated that nitrogen I

was the dominant parameter (Table 2-5). Both the EPA (USEPA 1975) and the pre-operational studies (Industrial Bio-Test 1974) indicated that Lake Wylie i

6 was phosphorus-limited, f

Silica !

Little variability was observed during the Two-Unit Operational Period in ;

silica concentrations measured on Lake Wylie (Figurt: 2-21). Soluble silica concentrations averaged 4.6 my Si.1-1 during the Baseline period, l 4.4 mg-Si 1-1 during the Preoperational Period, and 4. 3 mg-St .1-1 during the 3 Two-Unit Operational Period (Table 2-5). The primary source of silica is

[

I dissolution of minerals in the watershed; it 12 important in the Lake Wylie [

system as a nutrient for diatoms (Duke Power Company 1977a). Silica concentrations were simi'lar among all locations during the operational period f I (Figure 2-21). Silica profile concentrations were similar between depths and l locations during the Two-Unit operational period (Appendix 2-11).

! 8

! Mineral Composition Seasonal variability in mineral constituents was minor during the Two-Unit i

j operational period (Table 2-5). This seasonal variability was similar to both !

l r

! the preoperational and baseline periods. The major ions in Lake Wylie during the two-unit operational period were sodium, bicarbonate, and chloride. This !

' i ionic predominence was reported previously (Duke Power Company 1987). Minor j i mineral constituents included aluminum, iron, and magnesium. The geochemistry of the Piedmont area produces the observed concentrations of sodium.

I bicarbonate, chloride, and silica (Duke Power Ccmpany 19776). Profile data [

for mineral constituents were similar between depths and locations during the 4

) Two-Unit operational period (Appendix 2-12). Iron and manganese 2-9 i i j

i

- .,------------n.....-n--,. ,---..-n-------,,,_m.--, - - , , - , - - ~ - , , . - - - - - - , , - - - -

ccncentrations in the bottom waters at Locations 210.0 and 220.0 during August were higher than concentrations at other depths, and were due in part to the r;ducing environment.

Trace Metals (Cadmium, Copper, Zinc. Lead)

Little variability was apparent in trace metals between locations and seasons during the Two-Unit operational period (Table 2-6). Surface concentrations of cadmium ranged f rom 0.10 to 0.20 pg.1-1 Many values were at or near the dstection ilmit of 0.10 pg.1-1 Copper concentrations at the surface ranged from 2.4 to 11 pg.1-1 Lead concentrations at the surface ranged from 1.0 pq.1** to 2. 6 pg.1-1 f.urface concentrations for zine ranged from 2.0 pg.1-1 to 33 pg.1-1 The concentrations ant; temporal and spatial variability were similar to previous years (Duke Power Company 1977a,1978, .

1979, 1980, 1981, 1982, 1984a, 1985, 1987). Profile data were similar for trace metals between depths and locations for the Two-Unit operational period (Appendix 2-13).

SUP94ARY A comparison of physical and chemical parameters (tcmperature, 00, pH, alkalinity, conductivity, turbidity, nitrate + nitrite nitrogen, ammonia nitrogen, orthophosphate, total phosphorus, and silica) indicated similar concentrations among Locations 210.0, 215.0, and 220.0, and minimal thermal impact from the CN3 discharge (Chapter 1). As a result, the Catawba Nuclear Station has h.d minimal impact on the physicochemical characteristics of Lake Wylie.

2-10 l

l

l l

The limnological characteristics of Lake Wylie reflected the lithology of the basin. Water temperatures throughout Lake Wylie demonstrated typical seasonal !

variations. Maximum temperatures occurred in August, with minimum temperatures in Feb rua ry. Isothermal conditions generally existed from fall through winter, with thermal gradients apparent by spring.

Dissolved oxygen concentrations ref1 sted the inverse relationship between oxygen solubility and water temperature. Dissolved oxygen concentrations in the water column typically began to decline in spring, with dissolved oxygen concentrations in the bottom water less than 5.0 mg.1-1 during the summer period. Dissolved oxygen characteristics, both surface and profile, followed trends established during the Interim and Preoperational Periods.

Maximum concentrations of nitrate plus nitrite usually occurred in winter and spring, with minimum concentrations observed in late summer. Little spatial variability of ammonia concentrations was observed. Laboratory bicassays and comparison of nitrogen concentrations to phosphorus concentrations have indicated that Lake Wylie is phosphorus limitad. Total phosphorus concen-trations exhibited seasonal trends similar to turbidity, with highest concen-trations observed in the winter and spring. A slight positive trend in total phosphorus and N concentrations has occured at all three monitoring locations since the Interim Period. Sodium, chloride, and bicarbonate were the major ions in Lake Wylie.

Cadmium, copper, lead, and zine were monitored to assess trends in the trace metal concentrations in Lake Wylie. Little temporal or spatial variability was observed in trace metal concentrations, with concentrations generally at the analytical detection limit.

2-11

I I

LITERATURE CITED 1

American Public Heaith Associate (APHA), American Water Works Association

(AWWA), and Water Pollution Control Federation (WPCF). Standard methods for the examination of water and wastewater. 14th ed. American Public Health Assn. NY 1193 p. 1976.

i

Currie, L. A. Limits for qualitative detection and quantitative detection.

1 Anal. Chem, 40 (3): pages 586-693, 1968.

i ;

l Duke Power Company, Ct.tawba Nuclear Station interim monitoring study. July

, 1974-1977. Duke Power Company. Charlotte, NC. 1977a.

Duke Power Company, Chemical characteristics of piedmont lakes. Workshop in

, Aquatic Ecology in the Southeast. October 14, 1977. Duke Power Company. ;

3 Charlotte, NC. np. (not published). 1977b. p t

i Duke Power Company, Catawba Nuclear Station interim monitoring study. July .

1 1977 - June 1978. Duke Power Company. Charlotte, NC. 1978. !

3 i i Ouke Power Company, Catawba Nuclear Station interim monitoring study. July '

1978 - June 1979. Duke Power Company. Charlotte, NC. 1979.

Duke Power Ccmpany, Catawba Nuclear Station interim monitoring study. July i

. 1979 - June 1980. Duke Power Company, Charlotte, NC. 1980. {

I Duke Power Company, Catawba Nuclear Station interim monitoring study. July i 4

1980 - June 1981. Duke Power Company, Charlotte, NC. 1981. i Duke Power Company, Catawba Nuclear Station interim monito?ing study. July [

] 1981 - June 1982. Duke Power Company, Charlotte, NC. 1982.

}

i :

l Ouke Power Company, Catawba Nuclear Station interim monitoring study. July j 1982.- June 1983. Duke Power Company, Charlotte, NC. 1984a.

) Ouke Power Company, Catawba Nuclear Station 316(a) Demonstration preoperational i L

j report. Duke Power Company, Charlotte, NC. 1985.

! Duke Power Company, Evaluation of historical data on 12 reservoirs in the i piedmont carolinas with respect to acid rain considerations. Duke Power :

l Company. Charlotte, NC. 1984b. !

! i J Hem, J. D. Study and interpretation of the chemical characteristics of natural j

water. Geological Survey Water-Supply Paper 1473. U.S. Government i Printing Office, Washington, DC. 363 p. 1970. i

' l Hydrolab Corporation. Instructions for operating the Hydrolab Surveyor Model !

60 in-situ water quality analyzer. Austin, TX. 146 p. 1973. .

i i

[

2-12 {

Industrial Bio-Test Laboratories, Inc. A baseline / predictive environmental investigation of Lake Wylie. Catawba Nuclear Station and Plant Allen.

September 1973 - August 1974. Rept. to Duke Power Company 2 Vols. 743 p.

1974.

National Oceanic and Atmospheric Administration, Climatological Data, Asheville, NC, 1987.

SAS Institute, Inc., Cary, NC. A user's guide to SAS 79. Sparks Press.

Raleigh, NC. 494 p. 1985.

United State Environmental Protection Agency. Handbook for analytical quality control in water and wastewater laboratories. Technology Transfer.

Cincinnati, OH. 1972.

United State Environmental Protection Agency. National eutrophication survey.

Corvallis, OR. Working Paper NO. 441. 1975.

United State Environmental Protection Agency. Methods for chemical analysis for water and wastes. Environmental Monitoring and Support Laboratory.

Cincinnati, OH. 1976.

United State Environmental Protection Agency. Methods for chemical analysis of water and wastes. Environmental Monitoring and Support Laboratory.

Cincinnati, OH. 1979.

United State Environmental Protection Agency. Methods for chemical analysis of water and wastes. Environmental Monitoring and Support Laboratory, Office of Research and Development, Cincinnati, OH. 1983.

2-13

L Locotte 220.0 fusumamu 4 o ,

a. i a - L

./* \N.

'Q . .. ;

n , k ..**.*.3 e ,

s 3 ..... [

i e

at = m w as m, m a a y e, e '

escu t

Lacetton 215.O i l

meomuseo a,

l

= -

,.. (

n >

l'

/r ,.*,. N,

~ ... ;

'I e e, e a

sus se sua me == me o a u se IGNN d

i

.I Lecosten 210.0 i tttttlM(4/fl . e/3))

N'UR*ME 4 O mat Amp utu VALUt3 5

W - % PtdOPftAflotat

(l/4)

6/06) m ,

..f s*. - - -G-- -

/-

TWC.Chlf CPitAflow 5 ' * 'b,'.;- t11/86 44/87)

- .C % - &-

i a ,

g;..

u w-

e u: = one w e. m, m n a w m, .

==

1 s

Figure 2-1. Ibnthly comparisons of surface (0.3m) temerature values at locations 210.0. 215 ^ and 220.0.

2-14

l Ot$50LVED OXYGEN (eg/D 12 - LOCAfim 210.0 l e .m- O +

, 10 -

"*D** "'. ',, LOCAT!aN 215.0 .

..o..

g . ,

s - , ,o -

, r' tocAr!= 2:n.0

,N ,- e.

s -

t 4 -

I g .

' ' ' ' - - - i i I C DEc JAN Fra KAR APR M4Y AN AA. M MP KT WV MONTH i i 1 l 1

i l !

a >

l 1

j 1

TEMPERATURE ( C) 1 ss - LDcAf!W 210.0 L j --4---

s . . .a '

m .

= . LotAft m 21s.0

..o..

, [

75 - ,

UEAT!CN 220.O

{

j --e - [

ma . ..- ,

15 - f

', . . O. . . . [g f 4 10 - -

J ;

I j 5 -

i c WV ,

j DEc JAN FEB wtt APR 44Y AN A1. AUC SEP CCT i

MONTH f

Figure 2-2. %nthly comparison of surface temeratures and dissolved oxygen c between locations during the Two-Unit operational period (Dec i 1986-flov 1987),

, t 2-15 i i

t

. . - _ - _ _ - _ - _ , - _ - - . . - . _ _ , . _ , - - _ . - _ - _ _ --- . ~___-__

11l l I

mW wm .

m _

m"=..#-

w"#

j n

e

i. o

) w _

r T L e .O L b ( e _

A m h o o o o o .E I t F ev k o

1 q

,i , 1

.UT r _

o ::! ,i;!j.:j j:i.: ij ,!;!' A o _ _

N gk:!.

_1 c. R f _

. ( E _

w 0 1

1 t

q i

s o o ,

o l 1 o o o 6

1 o o o c, TE 0 1

-l .

2

. . , . S 3 2 , . , 7 u 3 3 u n i I n o _

^ t ,..G~ c ma i i t _

a c

o _

L r

o

. f s

O h -

t i > '

o

, ,I > , , ( n R o E )t i

_ /i , , ,

m i s M m M u .TIA e M g v U u ?

i i ,

, R i S (A " E d d ,

< , 4 t

eWE t a

0 T

n e

s s .

._ 0 ,. . . S' e) 1 3 2 , . . 7 . .

i 8

3 u o i I r7 _

2

- r*.evztm p8 e9 _

O I

r1 T rv _

A uo _

C oN _

_ O f L

2 m-o6

_ fl '

i

,. C) r3 _

o f9 i

, t 1 -

_ G e 's s ,

0

,ERU ec

_ N )y I

l e iD a -

Rf l g p .T 4 f(

P( .R o rd S e

< a

.E

.W po i

.E

.T er _

_ re up _

s

, t .

_ 3 2 3 . , . 7 . '..

t e u o 3 al ra r3.ev ztm en po mi

__ et t a r

l e ap r, no o

)

st a1

. E

_ R y

)

r o

t j .(

E SU s E a , R U .

T ur I

J f

b e !

/ ,

.I A

R L

3 2

_ W f( . M P

e m

, . L T

r

' i i < < < . , 4 .

u g

. i 3 J ,. . , . 7 , .

3 3 u o ,

s

- f r3.c* ztm m.~o.

LOCATION 215.0 SPRING SUMMER FALL WINTER (February) (MAY) (Ljust) (November)

1l U t ii y 7 l I 2 Sumelans haar h 5, lhes .u.se

/

3 , ii y 3 ii 3 ie i 1- ti g 46 2 -

ll 2- I l f

, 11 Tee 4.in.t eyeretten (32/. - II/978 2 . <> 2 -

i .

si s 3- 1 1 11

mma 3 il 3 .

i 3 . ii

~~

d ai . .

si si . -

Il Il a , ii , .

I S -

i ii 5 -

li 16 5 -

16 ! Il 5 . ii j ii i

I

i. i . -

il i li

! . - i s .si N 7 . ii

)

j ii 7 i ai 7 i <t 7 -

I

{ 11 A !

b

~ . . .,

,, .. i, . .

I i, . .

! n

. U = .. i, i d 2L . l ,,

. . i, .

L L L Ig , 10 .

' 30 .

$ l. -

E E C v II . v II -

v gg v 33 12 - 12 .

12 . 32 .

13 -

33 '

33 13-34 I4 '

34 .

1.

15 IS -

33 . 15

. . . i. 32 n ' t i. i. i. = s 2. = 't a = = s . i. i2 i. i. i.

TEMPERATLRE( O TEMPERATURE ( O TEMERATURE( O TEMPERATLRE( O Figure 2-4. Seasonal temperature profiles (from four representative months) for Location 215.0 for the Two-Unit operational period (Dec 1986 - Nov !987).

LOCATION 220.0 SPRING SUMMER FALL WItJTER (February) (May) (August) (November) i' P

O 3 II s' r ! .seelane Pirser tolame.

3/ 5 usa 3- 3

. it j{ l- 11 ( :

3 2' 2 '

l' 2' 'I l

8 I Taoi (12/h.a.t W ien

- 11/973 2 si il 1

3 '

3' il i 11 Pa' lenal 3- <i

' 3-

- 4/90 2

o ,! o

. 3 i, 5 i i' 5 '

5 .

si ! 11 1 3 , ,, ,

i i

o e . o < . . o j o o . .

}

h. , .

m i m i.

, . m , . .

o ! o

, m . q i

_ m , _. , , _, . , , , _. .

o i o i

e r .

r m

q t.

gi .

f 6 j u

3. ,.

3. . . 3. io :

ai II -

j i - Il '

IL' II '

33 , ai I

x x f x = 12 6---

a- 12 a e- *- 12 .

o a.

a s2 .

o. a. :

m m m m O 13 O

g3 O 33 . O 33 -

l I

(

. i.

.. . i.

' l ,, ,, .J ,, .

,s .

3*

. . i, s s 'b . i. i. s s 2. A 't 2. 2. = s . i. 2 s ' i. i.

TEMPERATURE ( O TEl@ERATLRE( O TEWERATURE( C)

TEMPERATURE ( O Figure 2-5. Seasonal temperature profiles (from four representative months) for Location 220.0 for the Two-Unit operational period (Dec 1986 - Nov 1987).

Locetion 220.C sissa.ven arves wu 19

.b *0* W ~ s,- . .

-s. . l o . . . . ,

.n:,g.$:;

n. .

s -

e, a u e at e a s en w .no As.

em Locotton 215.0 c:ssavec m an w u is

, j

" t W,o......o.,Y.T .?::.x,......... ..,.,. .....e, a m.. .

J 8P i

s u e xt e as im en w e e' Aa.

o%

Locotton 21C.:

INTERtM(1/75 - 6/83)

MAX AND MIN VALUES II'E'M @8 WU Ll p 6 -

% PREOPERATIONAL N o/e3 - 4/s )

-- -G -- -

/;/A......g.....c-j

"-- A. . . 4 N A

. . . ..

O * " ' *4 8 0*.*. .g, TWO.UN!? OPERATION

' ' . M* ' #* * . g[. . .hq e(l2/86 # g . Ia/87)

N _. & _

i

' ,u .. . we a rA u w x*

a: :.

o%

I Figure 2-6. Monthly comparisons of surface (0.3m) dissolved '

oxygen values at locations 210.0, 215.0, and 220.0.

2-19 t

9

.~ _ ._. . --_,., _ ._ --

02-2 DEPTH (meters)

,n ea s : : c : E . . . ...w ~ _

e $. .

N P --

o m. =-

o

,m m cr "

I o ME f r r r r : : r r

}

U

,N '

-4 p

~

- - - = a m q

e v., zz ,

x 52 r '

8 %~

xo -

ou l "

C

o. c.

r+ r O

8, DEPTH (meters)

g ej m

s : : c : s . . . . . . . ~ -

e o.

$.O N '

N ox <

ow .

m we

~m 8 ~~ % v

,o o. ,

~

-x ax

$w

~-

(D c '

% N ~ ~%

N - Z 2.8.,

o 0" ,

o

a. " 5 . '

no R~

ge ==

g n- n M

@o co a d o

=

i o DEPTH (meters) g5 of g i c p : s . . . . . . . ~,- N

,o

<, N o

~4 e,

u ,

$3 9~ - m

-m o g c-

" e F

, O c 1 ws:

w .

=

s.

8.

- =

Em 5

o

<s' e

r+

o" M

w m

o

' DEPTH (meters) r o .o .a s : s n = s . . . . . . . ~ -

r+oe S h. ,r r : : : - - - - - - -

.A; o

M Ne 6 = 2 O y -

0 0 0 0 0 0 0 0 0 ; ; ; ; - o q O Es .

m >

B F" o," =

s E, I 2.~ -

B- 5- II :

if . og I e- er El =B. er*

3

' ! ! i jili i

6m 8$I

Er-1 t 1 1 1 1 2 3 o . . 7 . - 5 . 3 2 I F D I .a 5 4 3 i

g S S

u O r Li V

(

e E F W D e I 2 i b 8

- O X

r N Y i i <

u a E T

!a i j

Ce '

E yr R i

i I/ < i 1 TS N )

we oa ( s , i i,

e i

i, ,

- s g i t

Uo /

1s nn )

ia tl od p i es rs ao tl ' 3 1 8 1 T" 3e-I l

. . 3 2 iv D '

I S 4 3 2 l a . 7 5 I oe i s

nd i 1 a s l o 0 L;

x V py E i S eg Di J i

,i

( P re O i

MR in a i

I o Xi y I Y

dp ( ) N

( o r Ie N G Df ei (

a e

cl gs e /

1s I L 9 ) O 8( C 6f A r T

- o I m O N N of vo u

8 I" Ne-1 2

I 1 1 1 I

. . 2 1

..- . 7 5 3 I 1 r 9 D I

S

. S 4 3 2 l 0

< I I 5

8r s , ,

0 7e 0

)p Li

. r V (

e s

E D A S U e

u n O X

g M t Y i u M a Ci E

i i '

s t E t

i N ) R v ( i I

i e g e

m /

1s o )

n t

h s

)

f o

r L I 3 1 8$I 1 I

E br-1

. . 3 2 D .' . 7 5 i

' S 4 3 2 I 0 o I c S a S O

t i Li o V o o o E . o 1 1

1 1

I I

I l

1 1

n D e ! j li:!j! : {;. :

2 O 1 X Y

/ .

B' n I o 4 l 1

i i

(

N 5

Gs

, l I I 1 i o F 0 E v A N em LL f

o

(

e 6 b r g e

/ r

_ t 1

) s T

)

_ h gru g

_ e w,. g4 jh I l

e gsi

. gt # a

. .l c m ul sno g

g f

ysa W .

_ ae l ys .

yee .

LOCATION 220.0 .

SPRING SUMMER FALL WINTER (February) (flay) (August) (November) is il I f fB hlleim h .sen

,i

= u . 4 . . T. 4 . . s6 a DISSOLV3 DXYCEN (ag/1) DISSOLVED OXYCEN (eg/1) OISSOLVED OXYGEN (og/3) DISSOLVED OXYGEN (ag/1) Figure 2-9. Seasonal dissolved axygen profiles (from four representative months) for Location 220.0 for the Two-Unit operational period (Dec 1986 - Ncv 1987). Lacoston 220,O e w esw 14 > \ e i / 4, w..- s..~s , 4'. 2 -A.7.0 *s. . ~ .. , * * ,'N ., s., . g . ./.'. . p...'.ay. N .- .,,..6-.....-j f EC 18 4 mas ce n*' A8' M 45 W st set om Locoston 215.0 m w wiw is . s> / ' 's '- k _// . s '.A ' . , , ,i . ..., , ~ ~ ' ' ~ ' ,' &y < . 7.x. : ~....., .*..g.*. p y. - s age nas ve wt 1, n na er ett ass at to em LocotIce 210.O INitarM(t/;5 - 4/83) MAI AND MtM VALyte r w wiw is . PREOPERAtt0 MAL O/s) - 4/86) s ,.' f _,_ g , . p _ TWO. UNIT OPEAATION / ui n '.:.: g Wxs "u :b .. ..-at.- * "p' ,7 .. * ** w . g ,I i [ 'S.,,, , e.

f, .

'o u s ., , a e, , x, e, ac ... .u v. e *. Figure 2-10. !!on t h ly ecmparisons et surface J^.3m) pH values at locations 210.0, :. 1 5 . 0 , and 2 20.0. 2-23 ' ALKALINITY (og CACO 3/D 24 - LCCATION 210.0 22 - --A - 20 " LOCATION 215.0 18 --o-- 18 - k .. ,O , , , LDCATICM 220.0 4-1< - ~, j '~o , / !* * ~

r 8 -

8 - g - I g L,w_ > . . . . . . . CEC JAN FE8 MAR APR MAY JLA JtA. AUG SEP OCT M2Y MONTH pH (SU) I* Q LOCATION 210.0 ^ / ', ..

/ ,

' ' LCCAT!DN 215.0 , [ / - ,% , ..o.. - - ,~

F. , ..

/ LOCAT!ON 220.0 ~~~ ~ ', *~ '~ . ..- ', ~ ',0., S l . i 1 1 . & j . . 1 J & DEC JAN FES MAR APR MAY JUN JUL AUG SEP OCT NDY MONTH Figure 2-11. Monthly comparison of surface alkalinity and oH values between locations during the Two-Unit operational period (Dec 1986 - Nov 1987). 2-24 Locotton 220.O rstlFCC tanttA0G M/d W-in . na . . /*.A sn . /.s.~,. c

g. ... e .....

un . 3 . .. a o . ....#M...e. *....o .*~== 0..v 3.* ....= ,,. &.w.%. 4- y.A.. a m = w n av m a m e m

norm Locot1on 215.O FECIFIC CpertAME wed as -

sn > in - A. ' J --. A. 'g. .. A q ,,, .. . .4.--*_ . im . N ,p-E - -. .................:,.>.p.:s ........................ -A ~ s > m W M mf m E M e C

mme Lecotte 210.0 tritRIM(t/75 - 4/43)

MAZ AND MIN VALUES treet86e the wed so - PPtqPERATIONAL sn ($/s3 4/86) ___g_ , se .

.s TWO. UNI T OPER ATI ON
(,....c (12/e6 - 1 /st) 88

- g _[-Q, ,,6... .- g.- n .

g$.~~."*.$.***.'.*.
u " ~ s

......',*.*,$ y',s. ~ . > n. w j. - mi --~ 3 n as e at = < ow. Figure 2-12. Monthly comparisons of surface (0.3m) specific conductance values at locations 210.0, 215.0, and 220.01 2-25 Locos 1on 220.O ransom ema as - M ' as . as , as - IM - is .

i. . /

m . M - .A* a . 4 /.O.....w g . L. 1.:':> u . -f - 6: ~ . e u im no un e e, u A 4 re arr on LocatLon 215.O rJetostr oma me , r1 - am - as - as . sn , is ,. is . in g -A \. g , t e ..' p = ;, u.e.t x . '..... w - . ... ._ e s -- e ut ,% au8 WIP GCs E Je na ud JWe om '.ccetton 210.0 INTERIM (t/75 - 4/83) ,,,3g g MAI AND MIN VALUt3 su - M ' P R IO F t t e.TI ON AL as (3/83 * '/84) me , --.g / TWO-UW1T OPERATION IM - (12/96 - 11/87) in in A , -- er--- l /\ , \ 1... i g- ', r w ..ser :m-4 Oh. s- ./ g 4 ar as s e x zu au un e u. w :s o m. Figure 2-13. tonthly comparison of surface (0.3m) turbidity values at locations 210.0, 215.0, and 220.0. 2-26 p- ,. - - - . we ._ _._ m , . , _ _ _ _ _ _ . - - - .,, l CONDUCTIVITY 6.6/ca) 200 - LOCATION 210.0 1e0 - 4 180 - @ LOCATION 215.0 l7 l j -- o-- nso G, $ \ s, 3 ,- ,, * - LOCATION 220.0 i20 ,# --e - O ..-O --- ' 110 - 'e , O. , , 100 go ,p. . g 70 ' . y mm. _,_ 80 - 50 - 40 - 30 - 20 - 10 ' ' ' ' ' ' ' ' ' ' ' 0 DEC JAN FEB MAR APR MAY Jl.N JU. AUG SEP OCT ICY MONTH TUR910!TY (NTU) 150 - LCCAY!ON 210.0 ^ 140 - ~ 130 - A LOCATION 215.0 ggg , --G-- ggn . LOCAT[0N 220.O t00 - Q' -s-go . 30 . ,/, *

N "

's,' i so - , l,,'l so - l'j,, . 40 - 30 ,O..,- / 20 . , 10 O

* ' ' < h .__... -

_..n... _m DEC JAN FEB MAR APR WAY fJN JU. AUG SEP OCT NOV MONTH Figure 2-14. Monthly com0arison of surface specific conductivity and turbidity between locations during the Two-Unit operational period (Dec 1986 - Nov 1987). 2-27 Lacos on 220.O e + W WD L8i &9

ae -

&f a ae- , &9 La - g, , .. A ' r-:' . ,' a . . g~ g,, 3- y

O ,', '

h,} s' ' y '/

~ ,w.s

:=

as ,, ,, ,, , ,, ., y A .a e m

ome Locost m 215.O en
en WD LO'

&B

60 '

47 . so, / / A. - s,, w 'g- / ~. .:::g - W^ ~?.* s ~..--...+.~.. , . , _ .. a & a - m . .~ Lccett06 210. O INTratM(t/75 - '/83) ice e ac3 MD MAI AND MtM YALUES

t. a _.

II

PRt0PERAftOMAL ten ($/83 - 4/86)

,,, _ _ e-- ' ' Two.UN!T OPERAtt0N (it/s6 tt/s)) , as - - -ter- - l s. . M n::4 [ l l si, s,' a-55' \ %., /, v N .. aw_ L u.3 - uu &. .e .* Ae ':l$e E _ ac z. .a _ e .- l l ou l Figure 2-15. ?tonthly comoarisons of surface (0.3m) nitrate plus nitrite nitrogen values at Locations 210,0, 215,0, and 220,0, 2-28 Locotton 220.0 es urevu E9a && a ts , j L8 > / \...,,= &g , , *...a ' *~ .. Q *' W ' N . m ,e su em we . eme am At as e set a Locoston 215.0 ee eu ts-Le * &a a / ta . 4, s'-* :-d( . t A N

z=n.'"D' 4 W

'Y ,_ _ _ .. . . ome Locat&am 21C.O INftRIM(t/7) . 4/g3) M42 AND MIN vat,Uts se v/18 &S PRIOPERAf!ONAL (5/83 - 4/04) t o le , --.g___ TWO-UNtf CPERAf!OM &g . /s\ (IIIS6 = 11/47) \ __. s _. s v. A. \ - A s - / / . 3.),. / \ 3

r .. ... - :-* __

.4 e ze e a: :. .u w <= .. i.m iA e Figure 2-16. Monthly conearisons of surface (0.3n) ammonia nitrogen values at locations 210.0, 215.0, and 220.0. 2-29 e l l .\ l i PO2

NO3 Gug-N/1) 1.00 - LOCAT! m 210.0

- A-- a, g0 . LOCAfim 215.0 0.90 - ..o.. ~ LOCATtm 220.0 0, 80 - --G - . L. 50 - ,0, o, 40 . , ' 's

0. 30 - '-

p,

0. 20 -

0.10 - ' ~~ ^ - ' O. 00 DEC JAN FE9 NAR APR MAY JUN AR. AUG SEP OCT NDY NONTH PN3 Geg-N/1) 0.50 - LOCATION 210.0 i LOCAT10N 215.0 C. 40 - ..o.. ' LOCATION 2?'1 0 c,30 - -e-O. 20 -

0. io -

. . . O/. . . q ', F, ,( x,'s .O. a-.m - v f I . . v - . . W APR W JUN 10. AUG sEP OCT NDY l DEC JAN FEB MONTH Figure 2-17. Monthly comparisons of surface nitrate plus nitrite nitrogen and armonia nitrogen between locations during the Two-Unit l operational period (Dec 1986 - Nov 1987), i j 2-30 Locoston 220.O m m y /u am, so . S tS

h t is -

/ s' \. A**N ,/ g ..N am - g ., ,g ,...' .* ....., %, ~ o

a. va me M a as e see e amt se .e ma oms Locot1on 215.O M N Wam,/0 am .

t is a a is F l A t . L w .. " - a "_ , ..?..g .a.. . - M r 4 ~ J [ a,-. 4

6. re ans we ut M h 1 e gaf use X Jass eme Locat1on 210.C - .

tutettM(1/?S - 4/83) s w a v eu MAI AND MIN VALUES gg, PA10PERAft0 MAL gg , ($/83 - 4/84) _ -g__ -. Two.UMtT OtttAT!ON (11/86 - 11/87) - . @r-- - a is , A .. .w &n> MM A..% ^ A .... m. . - f 2 ..C 3'....... . ~ m :: = _ '" ,. ., a n. .4 w er e 3: 1 .. . oms Figure 2-18. Monthly comparison of surface (0.3m) orthophosphate values at locations 210.0, 215.0, and 220.0. 2-31 Uncot t on 220. 0 ms omvenn wm am-6m . ! \.. / s na . k.* / / . \

g._.Q. ...' / .

.m - ..........- = = . .;g, 3 . e "" w e ., a m as e se m: i .e om Locoston 215.O ms peerwas ym &aa ta . s ,, . ,/ , . * . . .c_ s ,s . I y, .'.?' * ' ".',** ..es.. & ,*' y y ** u- &a, ~ net .. M M ans e fat iS' W. 14. PW est sot % incotten 210.0 INftRtM(1/?$ = 4/83) MAX AND MIN VALUES fttw mer4LA g/L) ._ am. PRIOPERATIONAL (5/43 - 4/84) tm . _ _ _g- _ ._ Two-UNtf CPERAtl0N g ig . (12/86 11/47) n, - t- - ,,, , A. ./ N ' ' n .. J S .. A '....> , \, / ., _s ~ - '"[ ,.... 'm %::f, .e.:.'g. , ' c . ' " ac i .u w e .. .~ ., .s u e xt Figure 2-19. Stonthly comparison of surface (0.3n) total phospheros values at locations 210.0, 215.0, and 220.0. 2-32 9 l i l l 1 TOTAL PHOSPHORUS Gug-P/1) ' LOCAT!tM 210.0 a 25 - --A-- LOCATION 215.0 0.20 - g ..o.. LOCAf!!N 220.0 f' ~ 0.15 / ' f /

- : o\ '

/g 0.10 . , ,o/ . . ., \ ., ,o \., g.... .. s 7

c. as

" ' / ~ '~ ..&... ....o am' . . JM4 FEB MAR APR MAY AN A1. AUD SEP (X:T M3V DEC MONTH ORTH 0 PHOSPHATE (mg-P/1) LOCATION 210.0 C. 25 '- , LatAT!ON 215.0 O.20 . ..o.. LOCAT!ON 220.0 ~ 0.15 - a ic ./ .. . A,. R . / \, a C5 . o. N. \ p g '.. .\ p a co . , , , , ~ ,a. n:% a_ OEC JAN FEB WR APR MY AN AA. AUD SEP OCT NOV MONTH Figure 2-20. Ibnthly comparison of surface orthophosphate and total phosphorus between locations during the Two-Unit operational period (Dec 1986 - flov 1987). 2-33 ( l SILICA (ag/D 10.0 - LOCATION 210.0

n. 0 -

+ LOPAT10N 215.0

8. 0 -

.. o .. 70 ' ,0, LOCAT!ON 220.O

s. O N

--O - ~..* O . 5. 0 - , ,'...g...O, ,n....O",,o,,,,,...g....g . -w -

3. O f
2. 0 '-
1. 0 -

g, , , (EC JAN FEB MAR APR NAY AM AL AUG SEP OCT NDY >ONTH 1 CH.OR!DE (mg/D 25 - LoCAT!DN 210.0 - -A--- LOCATICN 215.0 20 " h ..Q.. l l ,k',% LOCAT!CN 220.0 l n, j- -e-

,,o.

l 's, l , N O, , no . ', g :- - - ff d4 l l , , NO-5 - P l l a a & a i 1 1 n a s e i i OEC JAN ris cR APR WAY AN AA. AUC SEP OCT NOV , l ' MONTH

Figure 2-21. Monthly comparisons of surface silica and chloride between locations during the Two-Unit operational period (Dec 1986 -

N0v 1987).

2-34 4

e ,.,,,.,----,,,----_-,._--n.--., - - . - . , , ,,.m .-. -. . - - . _ - . .- ,. ---y Table 2-1. Lake W911e water quality monitoring location's (Figures 1-2) in the l vicinity of Catawba Nuclear Station. Samplina Location # Depth * (m) Description 210.0 16-17 Lake Wy lie near mouth of Big Allison Creek and Catawba River due east of Goat Island, mid-channel. 215.0 9-10 Big Allison Creek, near bridge over discharge of CNS mid-channel. 220.0 14-15 Lake Wylie near mouth of embayment (Intake) near intake to CNS, mid-channel. l

Function of lake level, reflecting water level fluctuations Table 2-2. Locations sampled and types of variables analyzed from 1974 through 1985 Location 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987

, 210.0 **** "444 *444 *444 *444 ***4 *884 *444 *444 ^904 4441 4441 4441 4441 215.0 **** *A44 *444 *444 *444 **** *888 *444 *444 *994 4441 4441 4441 4441 220.0 **** *444 *444 *444 *444 **** *888 *444 *444 *994 4441 4441 4441 4441 I , Each digit in the four digit code represents the following variables, respectively: physical variables; nutrients; <dnerals; trace elements. The value of a digit represents the number of time, snat group of variables was sampled at a location during that. year. A number is shown even if only one of the variables of a group was sampled. An asterisk (*) indicates that a group of variables was sampled more than nine times in a year. 2-35 . _ - . _ . _ ~ m one Table 2-3. Analytical methods for chemical and physical constituents on Lake j, Wylie (April 1983 through November 1987). Variables Method PreservatioJ1 Detection Limit Alkalinity, total Electrometric titration 4*C 1 mg-CACO 1 -1* 3 to a pH of 5.11 Hardness (Ca, Mg) Calculations Aluminum Atomic emission /ICPa 0.5% HNO 0.01 mg O 3 Ammonia Automated phenatel 4'C 0.006 mg-N 1 ~1 l Cadmium Atomic absorption /HGA1 0.5% HNO 3 0.10 pg I1 3 Atomic emission /ICP8 0.5% HNO 0.001 mg 1 3 Calcium Atomic emission /ICP8 0.5% HNO 0.005 mg O 3 Chloride Automated ferricyanidel 4'C 0.2 pg 1 ~1 Ccnductance, specific Temperature compensated In-situ 1 paho cm nickel electrodel Copper Atomic absorption /HGA1 0.5% HNO 3 0.7 pg N .g., Atomic emission /ICP8 0.002 mg 1 Iron 0.003 mg 1 -1 Atomic emission /ICP8 0.5% HNO 3 Lead Atomic absorption /HGA1 0.5% HNO 3 1.0 pg O Magnesium Atomic emission /ICPs 0.5% HNO 0.0001 mg d 3 Manganese Atomic emission /ICP8 9.5% HNO 0.0007 mg O ! 3 ~1 l Nitrate + Nitrite Automated cadmium 4'C 0.005 mg-N 1 1 reduction! ~1 Orthophosphate Automated ascorbic acid 4'C 0.005 mg-P 1 reduction 1 0xygen, dissolved Temperature compensated In-situ 0.1 mg 1 ~1" polaro' graphic celi 1 pH Temperature compensated In-situ 0.1* std. units glass electrodel i Phosphorus, total Persulfate digestion 4'C 0.004 mp-P l'1 followed by automated ascorbic acid reduction 1 l Potassium Atomic absorption /DA1 0.5% HNO 0.03 mg O 3 Silica Automated molybdos111cate l 4'C 0.2 mg-St 1 ~1 Sodium Atomic emission /ICP8 0.5% HNO 0.02 mg O 3 Tcmperature Thermistor thermometer 1 In-situ 0.1*C* ! Turbidity Nephelometric turbidity 1 4'C 1 NTU* ! Zinc Atomic emission /ICP8 0.5% HNO 0.002 mg N 3

= Detection limit and limit of determination were not determined on these variables; instead, instrument sensitivity is given, ma = ICP detection limit change from 7.0 pg l'1 to 0.002 mg l'1 (8/82).

8USEPA 1979 2 APHA 1976 80SEPA 1983 2-36 Table 2-4. Monthly precipitation totals (inches) for Lake Wylie for the period January,1975 through December, 1987, measured at the Douglas International Airport, Charlotte, NC. Month 1975 1976 l977 1978 1979 1980 1981 1982 1983 1984 1985 1986 1987 J,maer/' 6.1 1. 9 2.7 6.8 5.3 4.7 0.5 4.3 2.5 4.1 5.1 1. 0 4.8 February 3.5 1.1 1.5 0.? 7.6 1.3 3.6 4.9 5.5 4.9 4.0 1.0 5.2 { March 7.6 4.4 8.5 5.0 3.8 8.8 2.1 1.6 6.1 5.9 0.6 3.0 3.7 j. April 1.7 0.3 2.1 2.7 6.5 2.3 0.7 3.8 2.7 4.5 1.9 1.2 2.4 May 12.5 4.3 3.2 4.9 4.5 3.6 4.3 5.3 2.1 4.8 5.1 1.6 1.0 June 1.9 3.8 3.1 4.2 4.7 ,

2. 3 1.8 4.2 3.8 2.9 5.5 0.4 3.0 July 7.6 2.3 0.8 4.0 4.7 2.6 6.6 4.2 0.5 6.0 4.1 2.3 1.4 August 4.5 0.9 2.4 8.1 1. 3 1.9 2.7 2.0 3.6 3.9 7.3 5.4 2.8 September 6.5 5.6 6.4 1.2 9.) 5.4 3.4 0.6 0.7 1.7 0.7 0.8 6.9 October 3.6 8.3 4.7 1. 2 3.0 1. 7 3.9 3.8 2.4 0.7 5.2 3.5 0.8 November 2.8 3.4 4.2 2.8 4.6 3.8 0.9 3.1 4.1 2.1 8.7 3.4 4.1 December 3.8 5.6 2.0 3.1 1.4 0.8 6.2 4.2 7. 5 2.4 0.9 3.2 3.4 Totals: 62.1 41.9 41.6 44.7 57.1 39.2 36.7 41.7 41.5 43.9 49.1 26.8 39.5 Source: NOAA

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=t a .,:

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-- . e. - t ..t; .e -------u-c-s x-r s r : k s: t :s r - r r r s -t s-i , 2-36 : t Table 2-6. Surface means and ranges of trace metals sampled during the Preoperational Period (May 1983-Apr.1984), and the Two-Unit Operational Period (Dec 1986-Nov 1987). Location 210.0 Location 215.0 Location 220.0 Two-Unit Two-Unit Two-Unit Preoperational Operational Preoperational Operational Preoperational Operational Units Period Period Period Period Period Period Parameter mean 0.13 0.13 0.15 0.20 0.10 0.15 Aluminum ag/l 0.10-0.20 range 0.10-0.20 0.10-0.20 0.10-0.30 0.10-0.50 0.10-0.10 mean 0.13 0.15 0.10 0.17 0.10 0.17 Cadmium ug/l range 2.0-3.4 2.7-4.2 1.6-3.8 2.4-5.2 2.1-3.3 3.1-4.1 mean 2.8 3.3 2.7 3.5 2.9 3.6 Calcium og/l 3.1-4.1 range 2.0-3.4 2.7-4.2 1.6-3.8 2.4-5.2 2.1-3.3 Copper ug/l mean 4.7 2.9 4.0 S.1 3.0 4.2-u a range 2.9-11 2.4-3.4 2.9-5.4 3.5-7.8 2.4-4.0 2.6-5.4 a,a e 0.13 Iron og/l mean 0.13 0.13 0.15 0.20 0.10 range 0.10-0.20 0.10-0.20 0.10-0.30 0.10-0.50 0.10-0.10 0.10-0.20 1.3 1.5 1. 4 1.7 1. 3 1.5 Manganesium og/l mean range 1.2-1.5 1.4-1.6 1.3-1.5 1.7-1.9 1.2-1.4 1.4-1.6 0.018 0.020 0.020 0.030 0.017 0.025 Manganese og/l mean range 0.010-0.030 0.010-0.030 0.010-0.030 0.010-0.090 0.010-0.020 0.020-0.030 14 9.2 13 Sodium og/l mean 8.7 13 8.2 range 6.0-14 8.0-20 S.9-13 10-20 6.7-14 8.8-22 mean 1. 9 2.3 1.9 2.7 2.0 2.3 Potassium ag/l 1.6-2.5 1.9-3.0 range 1.6-2.5 1.9-2.9 1.7-2.4 2.2-3.0 1.3 1.1 1.4 1.4 1.4 1.1 " Lead ug/l mean range 1.0-2.4 1.0-2.0 1.0-2.0 1.0-2.0 1.0-2.6 1.0-2.0 10 4.0 10 12 10 6.5 Zinc ug/l mean range 10-10 2.0-6.0 10-10 2.0-33 10-10 2.0-22 e CHAPTER 3: PHYTOPLANKTON INTRODUCTION Comparisons of previous phytoplankton studies on Lake Wylie have shown considerable year-to year variations in phytoplankton taxonomic composition, cnd seasonal and spatial distribution (Duke Dower Company 1985, 1986; Indus-trial Bio-Test 1974; Weiss et al. 1975). The objectives of the Catawba Nuclear Station (CNS) Two-Unit Operational Study of phytoplankton presented in this chapter were to:

1. document the taxonomic composition of the phytoplankton during the first twelve months of two-unit operations,
2. describe seasonal and spatial patterns of phytoplankton standing crop, and
3. compare phytoplankton standing crop data collected during this study (December 1986 through November 1987) with data collected during the preoperational period of May 1983 through Aprii 1984 (Duke Power Company 1985) and the Unit 1 Operational peri.od of April 1985 through March 1986 (Duke Power Company 1987).

I METHODS AND MATERIALS Monthly phytoplankton sampling for the Two-Unit Operational Study was i conducted from December 1986 through Novemb.er 1987 at Locations 210.0, 215.0, l cnd 220.0 (Figure 1-2). Samples were collected at 0.3 m and at 5.0-m l intervals to 1 m above the bottom at each location. The field and laboratory l l methods used during this study were the same as those presented in the Preoperational Report (Duke Power Company 1985). Monthly phytoplankton l , standing crop data from December 1986 through November 1987 (taxonomic l composition, density, and biovolume) are presented in Appendix 3-1. I l l 3-1 1 The computer generated graphs of phytoplankton standing crop parameters presented in this study include interim data collected from May 1984 through March 1985, and from April through November 1986. These data are presented merely to provide continuity of sampling data, and will not be discussed in the following text. RESULTS AND DISCUSSION Phytoplankton Standina Crop Phytoplankton standing crops varied considerably among locations during the Two-Unit Operational Study; however, some spatial trends were observed. Location 220.0 generally demonstrated higher densities and biovolumes than other locations among 0.3 and 5.0-m samples, while chlorophyll concentrations were of ten highest at Location 215.0 (Tables 3-1 through 3-3; Figures 3-1 through 3-6). During both the Preoperational and t.he Unit 1 Operational Studies, no consistent spatial patterns were observed (Duke Power Company 1985, 1987). Overall seascnal trends of phytoplankton standing crops during this study were similar to those observed during previous studies, with maximum standing crops generally occurring from May through August and minimum values observed from December through March. Most standing crop values recorded during the Two-Unit Uperational Study were within ranges of those observed during previous studies on Lake Wylie, except that standing crops at 0.3 and 5.0 m from January through March 1987 were lower than those observed during these same months of the Unit 1 Operational Study. This was probably due to higher light intensities and lower turbidities recorded for January through March 1986 (Figure 3-7). Also, chlorophyll concentrations at 0.3 m in August and 3-2 September at Locations 220.0 and 215.0, respectively, were well above values previously recorded. The cause of these chlorophyll spikes cannot be explained, since variations in physical-chemical parameters among sampling Tocations during these months were minimal (Chapter 3) and effects of CNS operations would probably not have had an impact at Location 220.0, which is located in mid-channel out from the intake.

Vertical dist ribution patterns among phytoplankton during the Two-Unit Operational Study were generally similar to those observed during previous j studies. Maximum standing crops were observed among surface or 5.0-m samples, where temperatures were optimum and ample light was available for photo-synthesis. Minimum standing crops usually occurred in 10.0-m and bottom
samples. The greatest vertical differences in algal standing crops were observed from April through September 1987. This pattern of algal stratifi-cation was the same as that observed during the Preoperational Study. During the Unit 1 Operational Study, the period of greatest algal stratification was i

from May through December. From December 1986 through March 1987, and in Octot,er and November 1987, variations in vertical distribution of phyto-j plankton were relatively small due to vertical mixing in the Lake (Tables 3-1 I through 3-3). I Lakewide surface algal blooms have never been recnrded from Lake Wylie; ! however, localized blooms in coves and protected areas have of ten been i ! observed during spring and summer. These blooms have usually consisted of green algae' (i.e., Hydrodictyon, Gloeocystis, Chlamydomonas) and have dissipated rapidly. No algal blooms of any type were reported during the Two-Unit Operational Study. 3-3 i l i l Community Composition ! Nine classes comprising 92 genera and 200 species of phytoplankton were recorded from samples collected during the Two-Unit Operational Study; as compared to 10 classes, 86 genera, and 178 species listed during the Unit 1 Operational Study; and 8 classes, 71 genera, and 146 species observed during the Preoperational Study. The distribution of species within classes during this study was as follows: Chlorophyceae, 99; Baci11ariophyceae, 40; Chrysophyceae, 19; Xanthophyceae, 2; Cryptophyceae, 4; Myxophyceae, 18; Euglenophyceae, 9; Dinophyceae, 5; and Chloromonadophyceae, 4. Haptophyceae were not observed during this study; however,16 genera and 53 rpecies were identified which were not recorded during previous Duke Power studies, as compared to 7 genera and 33 species recorded exclusively from ti.e Unit 1 Operational Study, and 9 genera and 29 species recorded exclusively from the Preoperational Study (Table 3-4). Based on density, The Baci11ariophyceae (diatoms) were the most abundant algae observed during this study, followed in importance by the Chlorophyceae (green algae), the Myxophyceae (blue green algae), and the Cryptophyceae (cryptophytes). All other classes combined constituted approximately 10% of the total phytoplankton density (Table 3-5). This same general pattern of relative abundance was usually observed among sampling locations during this study. This represents a continuing shift in taxonomic composition f rom those observed during the Preoperational and Unit 1 Operational Studies, with diatoms increasing in relative abundance, while the relative abundance of cryptophytes has continued to decline. 4 Diatoms constituted at least 50% of the density and biovolume in nearly 3-4 E- , i one-third of the samples (Tables 3-6 and 3-7). At locations 210.0 and 215.0, diatom standing crops peaked in May, then gradually declined through ! i November. Maximum diatom standing crops were also observed in May at Location I 1 220.0; however, after declining sharply in June, J ey demonstrated a secondary seasonal peak from August through September. W 11 mum values at all [ locations were observed from December through March. During the Unit 1 Operational Study, maximum die *om standing crops generally occurred in April [ l and May, and during the Preoperational Study, maximum values occurred from !

June through August. The most abundant diatom taxa during this study were 1 !

{ Skeletonema spp. and Melosira spp.. These taxa were also identified as among l i { the most a 1ndant diatoms during the two previous Duke Power s:udies, t ! i I 1 ) , f

The Chlorophyceae have always been the most diverse class of algae present in

( ,. . Lake Wylie samples. Over half of the previously unrecorded taxa observed ! [ ! during this study were green algae. The green algar comprised at least 25% of j t { j the density and 20% of the biovolume in approximately one-fourth of the , samples (Tables 3-8 and 3-9). Maximum green algal standing crops occurred I l from July through September, while minimum values were observed from December l through March. Seasonal trends of green algal standing crops during this l ! study were similar to those observed during previous studies; however, ! overall abundance of this class was more comparable to that observed during j the Preoperational Period. The most abundant green algae were Chlamydomonas ; spp., Scenedesmus spp, and Ankistrodesmus spp.. These samt- taxa were most I l I abundant among green algae during the two previous Duke Power studies. ( [ I ! l 'The Myxophyceae contributed at least 25% to the density in approximately one- , i fifth of the samples, but seldom accounte'd for more than 25% of the biovolume (

?

t, 3-5 t l [ t _. _ _____. .U ~ - 'l ../ (Tables 3-10 and 3-11). Maximum standing crops occurred from May thre"gh September, when blue green algae often dominated phytor.lankton 1ssemblages. ; Minimum values were observed from De ~ nber through March. Although seasonal patterns of abundanc.e of blue green algae during this study were similar to those of the Unit ~1 Operational Study, standing crops and proportional abundance during this study were of ten much lower than those recorded during the Unit 1 Operational Study. Comparisons with the Preoperational Study showed that blue green standing crops during this study were generally higher at all locations, and the period of peak abundance was longer than that observed during the Preoperational Study. The most abundant blue green algae during this study were Oscillatoria spp. and Chroococcus spp. Both of these taxa were also abundant during previous Duke Power studies on Lake Wylie. ; The Cryptophyceae comprised over 25% of the density and biovolume in approxi-l mately one-fifth of the samples (Tables 3-12 and 3-13). Maximum cryptophyte standing crops were observed from April through August and ir. October, and this class was of ten dominant in surf see and 5.0-m samples in April. Minimum , standing crops uccurred f rom January through March. Seasonal patterns of l l cryptophyte distribution observed during this study were similar to those t observed during previous Duke Power studies; however, the importance of this j ! class has declined considerably since the Preoperational Study when it cons-tituted over 43% of the total phytoplankton density. The relative abundance of cryptophytes appears to be approaching that observed by Industrial Bio-Test (1974) in 1973-1974, when this class constituted less than 10% of the total phytoplankton density among surface samples. The most abundant

cryptophyte during this study, as in previous Duke Power studies, was i Rhodomonas, minuta.

i . 3-6 4 1 i f All other classes combined constituted at least 25% of the density and bio-volume in approximately one-tenth of the samples (Tables 3-14 and 3-15), and , they represented a lower percent of the total phytoplankton density during , this study than during :he Unit 1 Operational Study due primarily to lower t numbers of Chrysophyceae observed during 1986-1987. Chrysophytes were still an important constituent of the phytoplankton f.om January through March, when they of ten comprised over 25% of the density in Lako Wylie samples. The most abundant chrysophytes during this period were Stylexomonas spp. and ; Synura spp.. Stylexomonas dominated chrysophyte densities during January l 1986. ! i I t The Dinophyceae were observed in approximately one-third of the samples and f l seldom contributed over 5% to the density or 20% to the biovolume in any ' i i i sample. The Euglenophyceae were observed in approximately one-fourth of the J + l l samples and seldom accounted for more than 5% of the algal standing crop. The Xanthophyceae were observed far more frequently during this study than during i l t previous studies. Xanthophyceae, primarily the newly recorded taxon Dichotomococcus spp., were observed in nearly one-fourth of the samples; ( however, they rarely constituted more than 1% of the algal standing crop. } tl i 2 i i : l The Chloromonadophyceae, which were first recorded from fall samples of the ! Unit 1 Operational Study, were observed in 28 samples, 18 of which were collected in October and November 1987. The taxon Gonyostomum spp. , a large ! f flagellate, of ten accounted for over 25% of the biovolume in October-November j i samples. This taxon occassionally dominated October phytoplankton biovolumes i during the Unit 1 Operational Study. . [ i I l '! I t l

3-7 l

4

E

__ _ _ _ _ _ _ _ _ _ . _ _ _ . _ _ _ _ _ _ _ _ , . _ _ _ . - ~ _ _ _ . - l

SUMMARY
Phytoplankton were sampled monthly from December 1986 through November 1987 at three locations in the vicinity of CNS. Standing crop parameters consisted of algal density, biovolume, and chlorophyll a.
l Total phytoplankton standing crop parameters and the standing crops of the major classes showed the same general seasonal trends during this study as during previous studies on Lake Wylie, with maximum values occurring during 4
late spring and summer, and minimum values occurring during late fall and winter. Phytoplankton standing crops during the Two-Unit Operational Study and the Preoperational Study were generally lower than those observed during the Unit 1 Operational Study, particularly during winter-spring periods. This
! was probably due to ..igher surface light intensities and lower turbidities recorded during the winter-spring period of the Unit 1 Operational Study.
Location 220.0, near the CNS intake, often had higher densities and i
! biovolumes than other locations during this study, while chlorophyll concentrations were of ten highest at Location 215.0. Chlorophyll concentra-
! tions in the surface samples at Locatf >ns 215.0 and 220.0 in August and September 1987 were higher than those previously recorded.
I J
l Total phytoplankton and major class standing crops showed similar trends of i
vertical distribution, with higher standing crops among surf ace samples than among lower strata samples. The greatest degree of vertical strakification was observed from April through September 1987, while relatively small i i
' vertical standing crop differences occurred during fall and winter due to seasonal mixing. These same general trends were observed during both previous l Duke Power studies on Lake Wylie, i 3-8
The major classes of phytoplankton during this study, in order of importance based on percent composition of total density, were the Bacillariophyceae, Chlorophycefe, Myxophyceae, and Cryptophyceae. The Bacillariophyceae wa also the most abundant class during the Unit 1 Operational Study, while the Cryptophyceae dominated phytoplankton assemblages durir.g the Preoperational Study. This appears to indicate a shif t in community composition similar to that which was observed by Industrial Bio-Test in 1973-1974. Nine classew and 200 species were recorded during this study, with Skeletonema, Chlamydomonas, Chrooroccus, and Rhodomonas among the most abundant from each major class.
These same taxa were also among the mest abundant observed during the two orevious Duke Power studies.
Results from all four of the studies conducted on Lake Wylie have shown year-to year monthly variations in standing crop, community composition, and seasonal distribution. This appears to indicate that periodic differences in w:onomic composition and seasonal abundance patterns noted during this study as compared to previous studies are primarily a function of normal environ-contal variability. CNS two-unit operation did not appear to cause any long-term or consistent impacts on the phytoplankton in the vicinity of the Catauba Nuclear Station.
e 3-9
m.. _ . ~ -. __ . .. ._ - _ _ - - _ - _ _ _ - - .__
LITEkATURE CITED Duke Power Company. Chemical and biological characteristics prior +0 the operation of the Catawba Nuclear Station, 316(a) Demonstration preopera-tional report. Summary of data collected 1973-1974 and 1983-1984. Duke !
Power Company, Charlotte, NC. 134p.; 1985.
Duke Power Company. Chemical and biological chardeteristics during the first year of operation of Unit 1 of Catawba Nuclear Station, 316(a)
Demonstration operational report. Summary of data collected April 1985 ;
through March 1986. Duke Power Company, Charlotte, NC. 166p.; 1987. '
Industrial Bio-Test Laboratories, Inc. A baseline / predictive environmental [
investigation of Lake Wylie, Catawba Nuclear Station, and Plant Allen.
Report to Duke Power Company. 2 vols. 743p.; 1974.
Weiss, C. M. Campbe'1, P. H.; Anderson, T. P.; P7eander, S. L., The lower C&tawt3 Takes: characterization of phyto- and zooplankton communities and their stationships to environmental factors. Department of Environmental Sciences and Engineering, School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC. ESE Pub. No. 389. 396p..; 1975.
i I
t I
t r i !
e I
1 I
i i !
l l
1 i l I
1 1 i
}
l l 3-10 t
, g 4
Tabfe 3-1 Phytoplankton densities (Unitshal) for samples collected on Lake Wylie from December 1986 through floves er 1987.
Saeyll C W atica D*pp eal 17759/86 61/13/87 02/10/87 01/10/07 04/14/AMCd T[Later0676t/87 a7 07/ 3 4/8% 08/11/8 7 09/15/87 10/11/8 7 11/10/87 210.9 0.3 I,975 866 688 366 3,750 15,171 15,246 10,795 18,737 6,861 6,796 ?,299 5,0 1,976 1,564 848 498 1,584 13,e55 2,238 S,099 4,226 7,742 5,221 3,660 19.6 1.162 4.8 f,6G. 570 624 1,273 522 720 2,352 2,737 6.081 4,506 15.0 915 322 84e $2A Set 752 306 s,056 1,200 1,772 4,876 3,741 w
235.0 0.5 1,077 915 536 I,298 4.932 1*,SF6 11,962 7,733 14,559 I fe,165 5,634 3,200 S.O 1,879 I,932 (;20 2.042 1,040 7,586 1,',16 4,394 2,8$9 10,165 4,083 3,964 9.0 1,751 1,483 424 920 See 1,248 700 2,784 2,376 2,043 3,797 3,264 220.0 0.3 2,537 979 I.ev5 770 s,672 36,774 10,0f7 18,738 18,230 13,563 0,269 4,408 5.0 I,275 694 1.156 27G 3,218 te,796 le,943 10,142 12,473 13,084 7,984 3,351 10.0 1,128 1,295 664 220 768 2,017 936 1,?72 1,944 2,484 7,326 3,461 14.0 623 648 544 650 881 732 1,056 768 1,248 4,102 7,061 3,069 l
i i
,. o
Tabie 3-2 Phytoplankton biovolumes (mm3/n3) for samoles collected on Lake Wylie from December 1986 through November 1987.
i Sampling Dates laat ion Dept h (r;_ 12/09/86 01/13/47 02/10/47 03/10/47 44/I4/87 05/12/87 6UO9/47 07/14/57 04/I1/87 09/15/97 10 /13 /4 7 11/le/4 7 210.0 0.3 729 303 498 35C 1,594 3,009 4,844 4,122 6,021 2,979 2,327 869 l
5.0 506 1,447 695 336 Set 3,031 1,197 2,519 2.467 3.372 3,728 894 10.0 368 233 1,242 241 814 352 500 461 862 1,016 1,631 1,063 J 15.0 649 405 415 254 775 190 240 351 484 1,165 1,332 672 I W b 215.0 0.3 000 464 351 604 1,351 3,279 5,650 4,251 5,552 4,725 2,343 1,P' ru 5.0 652 750 309 I,0c6 3*7 3,368 429 2,401 1,511 4,572 1,711 1,527
, 9.0 839 636 118 427 379 321 578 847 996 950 1,097 1,342 L
220.0 0.3 986 426 1,018 823 4,574 0,091 2,903 6,196 6.458 5.584 2,209 1,071 5.0 350 312 529 78 1,463 2,046 3,542 4,993 4.615 4.7s4 2,921 623 10.0 355 623 654 132 679 722 334 408 561 1,342 2.157 466 14.0 250 150 601 513 065 149 353 261 349 2,052 2,042 542 1
J i
i i
j
Table 3-3 Phytoplankton chlorophyll a values (mg/m 3) for samples collected on Lake Wylie from December 1986 through November 198 C l
~
S li Daten Eg atesm Depthiel IT/64736 41/11/y102/30/47 Ol/r6/e 7 64/14/4 7 e TT e67e4/87 07/I4/07 et/ll/m9/is/4TT5713/e7 II/le/e7 250.0 0.1 4.32 3.%4 2.72 1.32 2.92 7.24 9.25 10.06 19.22 s.25 6.44 7.54 5.9 2.99 1.66 4.44 4.98 1.25 7.44 2.26 8.4% 6.44 38.46 7.44 4.63 19.0 8.60 1.34 4.64 0.90 4.85 3.42 0.73 3.37 3.94 2.50 7.44 5.83
is.O i..: i. 9 4.7. i.ie .. 9 . 65 . 73 s.es i.,4 2.42 3.3, 6.24 M
Gb 25%.0 0.3 S.65 3.37 4.33 2.66 4.63 U.86 St.06 80.66 24.03 28.34 8.0% 7.24 5.0 2.62 3.71 2.e9 3.23 1.53 2.07 3.86 7.64 4.83 20.29 6.84 4.83 9.9 2.40 2.9e 8.76 2.82 e.63 1.47 1.53 3.62 3.82 2.$8 6.03 6.24 210.0 0.' 4.$9 2.19 4.32 8.69 2.90 7.04 7.44 19.46 29.37 28.82 10.46 6.24 5.0 2.03 1.99 4.64 1.29 1.49 6.0; 6.03 6.64 19.76 9.95 11.26 4.83 10.0 3.75 2.11 4.06 0.91 E.26 3.66 1.29 . 28 8.94 S.43 89.70 4.83 i
14.0 8.60 1.62 3.38 3.%) 3.3e 1.22 0.97 I.13 2.34 2.66 10.26 4.93 I
page 1 of 7 Table 3-4 Phytoplankton taxa observed in samples collected on Lake Wylie for the periods May 1983 through April 1984 (POS=Preoperational study),
April 1985 through March 1986 (U1S= Unit I study), and December 1986 through November 1987 (U25=Two-Unit study).
CHLOROPHYCEAE POS
~
U15 U25 Actinastrum gracilimum G. M. Smith X A. hantzschii Lag. X X. hantzschii v. fluviatile Schroed. X Knkistrodesmus cor.volutus Corda X X A. falcatus (Corda) Ralfs X X X X. falcatus v. acicularis (A. Braun) G. S. West X i
X. TaTcatui v. mirabilis (West & West) G.S. West X X X X. nannoselene Skuja X X X, spiralis (Turner) Lems. X i Xrthrodessus incus (Breb.) Hassall X X X A. incus v raTTITi W. West X X. sp. Ehr. X X Xsterococcus limneticus G. M. Smith X X X Botryococcus braunii Kutz. X Carteria fritzschii Takeda X C. sp. Deising X X X Chlamydomonas angulosa Dill X C. globosa Snow X X
f. spp. Ehr. X X X Ehlorella spp. Beyerink X Chlorogonium spirale Scherf. & Pascher X X C. spp. Ehr. X flosteriopsis lunr,issima v. tropica West & West X X Closterium iniurv.am Breb. X C spp. Nitzsch. X foccomonas orbicularis Stien X Coelastrum cambricum Archer X X C. microporum Nag. X X f reticulatum (Dang.) Senn. X E, sphearicum Nag. X
f. spp. Nag. X X fosmarium angulosua v. concinnus (Rab.) W. & W. X X C. asphearosporum v. stricosum Norst. X X X
f. phaseolus t7tner 3olct X E. subtunidum Nord. X E, tenue Archer X X C. tinctum Ralfs X X C. tumidum Lundell X E. spp Corda X X X ,
frucigenia apiculata (Lems.) Schmidle X '
C. crucifera (Wolle.) Collins X X X
f. fenestrata Schmidle X f, irregularis Wille X X C. rectangularis (A. Braun) Gay X ,
E,. tetrapedia (Kirch.) West & West X X X l 3-14
Table 3-4 page 2 of 7 POS U1S U2S C. spp. Morren T Dactyococcu.; spp. Nag. X Dictyosphearium ehrenbergianum Nag. X X
0. pulchellum Nag. X X X Elakatothrix gelatinosa Wille X X X Euastrum denticulatum v rectangulare West & West X E. spp. Ehr. X Eudorina elegans Ehr. X X X Franceia droescheri (Lemm.) G. M. Smith X X X F. ovalis (France) Lens. X X UloeocysTis botryoides (Kutz.) Nag. X X G. g12as (Kutz. ) Lag. X
5. spp. Nag. X X U31enkinia pausispina West & West X X X G. radiata (Chodat) Wille X X X Conium pectorale Mueller X X G. sociale (Duf") Warming X Haematococcus lacu: tris (Girod.) Rost. X Kirchneriella cont 7)rta (Schmidle) Bohlin X X X K. lunaris (Kirch.TWoebius X X R. lunarit v. dianae Bohlin X X R. obesa (W. West) Schmidle X X R. subsolitaria X X R. spp. Schmidle X X X
[agerhieu.ia ciliata (Lag.) Chodat X L. ciliata v. minor (G. M. Smith) G. M. Smith X E. longiseta (Lemm.) Printz X X E. subsala Lemm. X X X Resostigea viride Lauterb X Micractinium pusillum Fresen. X X X Monotaphidium braunit Nag. X M. contortum Thuret X X X R. setiforme Nygard X R. spp. Leglierova X Hannochloris spy. Nauman X N phrocytfum g ',dianum Nag. X X X Oocys tis borget_ Inow X
0. lacustris Chodat X D. parva West & West X X D. pusilla Hansg. X D. spp. Nag. X X Fandorina charkoweinsis Korsh, X X P. morem (Muel.) Bory X X X Planktosphearia gelatinosa G. M. Smith X X Pediastrum b1H diatum Meyen X P. duplex Meyen X X X F. duplex v. oracillimum West & West X F, tetras (Ehr.) Ralfs X X X F. spp. Meyen X Foledriopsis spinulosa (Playf.) G. M. Smith X Pteromonas aan ulosa (Carter) Lem. X Quadricula lacustris (Chodat) G. M. Smith X X Q. spp. Printz X 3-15
i i
{
Table 3-4 page 3 of 7 POS U15 U2S Scenedesmus abundans (Kirch.) Chodat X T T
5. abundans v. asymetrica (Schroed ) G. M. Smith X X
5. abundans v. brevicauda G. M. Smith X ,
5. acuminatus (Lag.) Chodat X X X ;
5. acutus v. minor G. M. Smith X
5. arcuatus v. platydisca G. M. Smith X X
5. armatus Chodat X X
5. armatus v. bicaudatu_s (Gugl. & Printz) Chodat X X l
5. barnardii G. M. Smith X
5. bi:uga (Turp.) Lag. X X X
5. bi; uga v. alterans (Rein.; Hansg. X X
5. brasiliensis Bohlin X X
5. denticulatus Lag. X X X
5. denticulatus v. recurvatus Schum. X X
5. dimorphus (Turp.) Kutz. X X X !
5. opoliensis P. Richter X ,
5. opoliensis v. contracta Prescott X
5. quadricauda X X X
5. quadricauda v. maximus West & West X
3. spp. Meyen X X X 5chroederia setigera (Schroed.) Lemm. X X Selenastrum bibraianum Reinsch X l
5. minutum (Nag.) Collins X X X l 5, westii G. M. Smith X X X i
5. spp. Reinsch X 5phearocystis schroeteri Chodat X X ,
Sphearozosma QFa'nulata Roy & Bliss X lorastrum spinulosum Nag. X Staurastrum americanum (West & West) G. M. Smith X X
5. curvatum v. elongatum G. M. Smith X
5. dickiei v. rhomboidium West & West X
3. paradoxum Meyen X X i
5. tetracerum Ralfs X X l
3. spp. Meyen X X X 3
Tetraedron arthrodesmiforme (G. S. West) Wolo. X ;
T. caudatum (Corda) Hansg. X X i T. caudatum v. lonaispinum Lemm. X X T. limneticum Borge X ,
T. minimum (A. Braun) Hansg. X X X i i
T. muticum (A. Braun) Hansg. X l T. pentaedricuo West & West X X T. regulare Kutz. X X T. regulare v. incus Tieling X T. trigonum (Nag.) Hansg. X X T trigunum v. gracile (Reins:h) DeT. X X T. trigonum v. setigerum (Archer) Lems. X T. sop. Autz. X Tetrastrum heteracanthum (Nordst.) Chodat X X X t
T. stauraeniforme (Schroed.) Lemm. X
- Truebaria setigerum (Archer) G. M. Smith X X X
Westella linearis G. M. Smith X 3-16 j
Table 3-4 page 4 of 7 BACILLARIOPHYCEAE POS U15 U25 Achnanthes exigua Krasske X A. microcephala Kutz. X X X. spp. Bory X X X Xmphiphora costata Hust.- X Amphora ova'lis (Kutz.) Kutz. X Anomoeoneis vitrea (Grun.) Ross X Asterionella formosa Hassall X X X Attheya zachariasi J. Brun. X X Cocconeis placentula Ehr. X Cyclotella meneghiniana Kutz. X X C. stelTfiera (Cleve) V. H. X X X
f. spp. Kutz. X X fymbella naviculiformis Auers. X C. tumida (Breb.) V. H. X C. spp. Agardh X Tragilaria crotonensis Kitten X X X F. spp. Kutz. X X Trustulia rhomboides (Ehr.) DeT. X X E. vulgaris Thwaites X
'omphonema spp. Agardh X X
..osira ambigua (Grun.) O. Muller X X M. distans (Ehr.) Kutz. X X X R. distans v. alpigena Grun. X R. granulata (Ehr.) Ralfs X X X R. granulata v. angustissima Muller X X X R. islandica Mueller X R. italica (Ehr.) Kutz. X X R. italica v. tennuissima (Grun.) Mueller X X X R. varians Agardh X X X R. spp. Agardh X X X Ravicula cryptocephala Kutz. X N. exigua (Greg. ) O. Muller X X X R. pupula Kutz. X R. spp. Bory X X X Hitzschia acicularis (Kutz.) W. Smith X X X N. agnita Hust. X R. holsatica Hust. X R. kutzingiana Hilse X R. palea (Kutz.) W. Smith X X R. paleacea Grun. X X N. sublinearis Hust. X R. subtilis Kutz, X R. spp. Hassall X X X Finnularia spp. Ehr. X Rhizosolenia spp. Ehr. X X X Skeletonema potemos (Weber) Hasle X X X Stephanodiscus spp. Ehr. X X Surirella spp. Turpin X Synedra acus Kutz. X X S. planktonica Ehr. X X X
3. rumpens Gtz. X X X
3. rumpens v. fragilarioides Grun. X
3. rumpens v. scotica Grun. X X 3-17
l l Table 3-4 page 5 of 7 i POS U15 U2S i l 1 ulna Nitz. X T 'T i
s. u!na v. ramesii (Herib.) Hust. X
3. spT Ehr. X X X Tabe11 aria fenestrata (Lyngb.) Kutz. X X l T. flocculosa (Roth) Kutz. X X i Terpsinoe americaria (Bailey) Ralfs X 1
l CHRYSOPHYCEAE Aulomonas purdyii Lackey X X '
Chropolina spp, Chien. X E s'ococcus rufescens Klebs X Codomonas annulata Lackey X X Dinob. on bavaricus Imhof X X X D. cylin ricum Imhof & Ahlst. X i D. spp. Ehr. X X X l Irkenia subaequiciliata Skuja X X JKe hyrion littorale Lund X X Lagynion spp. Pascher X Mallomonas acroides Party X X X i l M. allantoides Harris X X .
R. alpina Parcher & Ruttner X X X I
R. caudata Conrad X N. pseudocoronata Prescott X X !
R. tonsurata Teiling X X X R. spp. Perty X X ;
Dehromonas mutabilis Kirbs X X
0. spp Wyssot. X X Pseudokephyrion spp. Pascher X X j 5telexomonas dichotoma Lackey X X X l Synura spinosa Korsh. X X X
5. ulvella Ehr. X
5. spp. Ehr. X X i Drooienopsis americana (Calk.) Lemm. X X l HAPTOPHYCEAE i Chrysochresulina parva Lackey X
[
XANTHOPHYCEAE !
Dichotomococcus spp. Korsh. X !
Ophiocytium capitatum v. longispinum (Moeb.) Lee. X X 1 Pseudotetraedron neglectum ('erty) A. Braun X [
CRYPTOPHYCEAE Cryptomonas erosa Ehr. X X X !
t. erosa v. iTTTexa Marsson X ,
f. marsonii Skuja X
f. ovata Ehr. X X X !
f. phaseolus Skuja X -
f reflexa Skuja X X X ,
f. spp. Ehr. X l Rhodomonas minuta Skuja X X X 3-18 i
Table 3-4 page 6 of 7 MYXOPHYCEAE POS U15 U2S Aomenellun quadriduplicatum Breb. T T X Anabaena spiroides Lemm. X X A, wisconsinense Prescott X X spp. Bory X X X Xnabaenopsis spp. Wolo. & Miller X Anacystis cyanea Druet & Daily X A. incerta Druet & Daily X X. spp. X X Xphanothece clathrata G. S. West X A. nidulans P. Richter X X, saxicola Nag. X X. spp. Nag. X Uhroccoccus dispersus (Kiessi.) Lemm. X C. limneticus Lemm. X X X C. m butus Kutz. X X
f. F.4 Ecottii Druet & Daily X X E. spp. Nag. X X X Dactylococcopsi rhaphidioides Hansg. X D. smithii Chodat & Chodat X
[yngbya contorta Lemm. X L. ochracea Thuret X
[. spirulinoides Gomont X
[. versitolor (Wartman) Gomont X Ricrocoleus spp. Esmaz. X Oscillato E geminata Meneg. X X X
0. limnetica Lemm.
X X X D. minima X D. subtilissima Kutz. X X D. spp. Vaucher X X X Ehormidium angustissima West & West X X P. spp. Kutz. X Rabdoderma lineare Schmidle & Lauterb. X Raphidiopsis curvata Fritsch & Rich X Spirulina spp. Turpin X X EUGLENOPHYCEAE Euglena acus Ehr. X X E. elastica Prescott X E. spp. EKr. X X X
[epocinclus ovum (Ehr.) Lemm. X L. spp. Perty X Phacus spp. Duj. X X X Trachelomonas acanthostoma (Stokes) Defl. X X T. hispida (Perty) Stein X X Y. hispida v. punctata Lemm. X T. volvocina Ehr. X X T. s.pp. Ehr. . ,
X X X DINOPHYCEAE Ceratium hirundinella (Mueller) Schrank X C. hirundinella v. brachyceras (Daday) Osten. X C. spp. Schrank X lilcnodinium quadridens (Stein) Schiller X X 3-19
Table 3-4 page 7 of 7 POS U15 U25 G. spp. Stein ~R- X Uymnodinium neglectunm (Schilling) Linde. X Peridinium aciculiferum Lemm. X P. inconspicuum Lemm. X X X F penardiforme Linde. X E. pulvisculus (Ehr.) Stein X E, pusillum (Pennard) Lemm. X X P. quadridens Stein X F. spp. Ehr. X X X CHLOR 0 MONAD 0PHYCEAE Gonyostomum depressum (Lauterb.) Lemm. X G. latum Iwanosf X
5. semen (Ehr.) Diesing X X
5. spp. Deising X X 1
l l
l 1
1 i
3-20
Table 3-5. List of algal clastes observed in samples collected on Lake Wylie and their percent composition of total phytoplankten observed from May 1983 through April 1984 (POS=Preoperational study), April 1985 through March 1986 (U15= Unit i study), and December 1986 through November 1987 (U25=Two-Unit study).
Class Density Percent Composition POS U15 U25 Chlorophyceae TVTO 14.7 YTT7 Bacillariophyceae 18.7 21.7 33.6 Chrysophyceae 5.7 12.3 8.6 Haptophyceae 0 1.2 0 Xanthophyceae <0.1 (0.1 0.6 Cryptophyceae 43.4 23.9 17.0 Myxophyceae 11.6 21.7 17.5 Euglenophyceae 0.1 0.1 0.2 Dinophyceae 0.9 0.6 0,3 Chloromonadophyceae 0 0.1 0.4 Unknowns 0.6 0 0 Biovolume Perent Composition POS U15 U25 Chlorophyceae 13.0 T375 7378 Bacillariophyceae 24,7 31.0 24.9 Chrysophyceae 4.8 4.4 5.0 Haptophyceae 0 0.7 0 Xanthophyceae (0.1 <0.1 0.2 Cryptophyceae 42.6 24.2 21.3
14.9 Myxophyceae 2.3 7.6 Euglenophyceae 1.1 1.0 2.0 Dinophyceae 11.3 12.1 4.7 Chloromonadophyceae 0 3.5 6.2
' 0.2 0 0 Unknowns 1
3-21
Tabl4 3-6 Baci11ariophyceae densities (units /ml) and percent composition (in parenthesis) for samples collected on Lake Wylic from December 1986 through November 1987.
Sa glin gbates Locat tna Depthlel 12/09/46 61/13/97 02/le/87 01/10/47 04/14/07 05/12T87 05769/t7 07/I4/57 04/11/47 09/15187 10/13/07 11/10/87 224 753 3,646 2,844 2,625 3,29 1 1,920 2,533 1,405 210.0 0.3 711 173 252 435.99 (20.03 436.65 160.09 (21.08 124.99 (Is.69 (24.33 (17.59 (27.95 437.29 (42.59 757 244 210 977 6,052 1,195 2.625 1,562 2,697 1,941 2,975 5.0 1,127 457.09 647.95 (20.13 682.89 461.63 446.39 448.9) 832.49 436.9) 034.8B (37.1) 456.63 10.0 se2 168 404 330 464 793 366 353 673 1,ISS 2.554 2.533 175.73 (40.99 (28.79 (57.83 674.33 462.25 470,19 148.99 428.59 (40.68 (41.9) 456.19 686 193 se 348 563 481 210 336 553 797 1,818 1,944 15.0 151.9) 674.99 459.50 110.09 165.3B 466.0) 603.09 (68.63 131.8) 646.09 444.06 637.29 1,453 2.771 1,531 2,911 1,900 1,307 1,144 00 215.0 9.3 605 156 168 290 4,136 432.ll f17.19 129.05 422.49 (24.05 6 9.99 (23.19 (19.83 (19.99 (18.68 (23.1) 435.78
[,
Fa 5.0 1.095 ist 132 641 449 3,792 481 1,322 1,009 2.247 1,001 1,814 158.2) t 9.33 (21.2) 431.39 (43.03 149.99 (33.99 (30.08 (35.99 (22.09 (24.41 445.43 200 961 444 937 625 572 1,103 1,177 9.0 1.978 444 340 210 (61.5) f31.7) (33.99 (22.2) 638.25 (76.9) '62.75 433.69 (26.28 (28.09 (29.03 436.08 360 1,202 4,854 1,021 4,936 5.695 5,312 3,923 2,026 220.0 0.3 670 173 468 631,35 417.63 142.79 (46.7) (13.89 410.8) (10.19 (26.39 (31.29 (39.19 647.49 145.95 529 5,032 2,333 2,333 4,521 5,189 3,473 1,552 5.0 793 148 324 29 (55.18 421.48 (20.05 6 7.41 (16.43 (46.63 121.39 423.0) 636.29 446.73 (43.49 649.23 10.0 797 393 212 130 593 1,370 288 601 905 1,267 2,636 2.239 470.69 (29.59 831.98 659.15 477.03 (67.8) 430.75 647.18 (59.69 650.05 (35.99 664.63 817 540 505 216 529 2,104 3,146 3,79 7 14.0 494 139 324 430 (21.49 (59.53 166.13 (92.79 473.73 (47.78 (28.19 (42.39 451.25 444.58 458.5) 464.45
Tabib 3-7 Bacillariophyceae biovolumes (m /m ) and percent composition (in parenthesis) for samples co!1ected on Lake Wylie from December 1986 through November 1987.
Segg.l i n ba t es br> rat t em prpt h tml 12/09/86 01/13/97 42/II787 01/10/47 04/14/4 7 Of/177e 7 (765/97 07/14/87 08/11/87 09/15/47 10/13/07 11/10/07 210.0 0.3 17e IIS 349 200 627 516 2,367 1.400 1.778 I.398 671 141 423.38 639.09 478.19 152.75 139.31 (17.19 tot.el (32.59 (29.59 (46.90 128.89 416.19 5.0 353 1.204 466 224 716 923 793 1.129 1.233 1.523 305 254 460.21 183.23 (67.08 466.75 409.30 (30.49 (66.05 844.88 449.95 (45.08 117.39 (2s.43 10.0 299 163 #47 Ret 709 277 400 293 294 1,344 737 204 (St.Il 470.08 668.19 (75.49 597.09 (79.68 481.49 163.49 (34.00 174.99 445.18 119.19 15.0 543 363 64 181 742 151 202 147 279 758 448 203 183.68 189.65 (15.33 (75.55 195.75 479.59 484.19 (41.98 457.65 465.09 (33.6) (30.23 OJ 215.0 0.3 155 37 35 165 184 302 3.219 I.480 2,512 969 247 91 da (19.39 ilt.7) (24.19 (27.35 (13.63 1 9.2) 456.09 (34.0) (45.29 (20.59 (39.53 4 7.19 to 5.0 169 193 61 393 73 2.373 261 686 285 1.052 337 694 (25.99 (24.19 (19.69 (39.1) 420.49 470.51 460.99 128.50 418.88 (23.89 439.79 445.49 9.0 369 270 50 170 126 265 513 432 369 491 359 112 143.99 (42.49 442.09 (?9.79 (33.3s is2.58 188.75 443.65 (37.46 151.63 (32.78 i S.38 220.0 0.3 105 229 731 609 655 5.345 600 1.517 2.328 2.725 SS2 347 tie 69 453.58 173.89 673.99 (14.38 466.09 422.78 (24.49 (36.09 149.8) 439.99 (32.48 5.0 106 IS2 546 6 324 1.010 2.233 1.66e 2.472 3.156 906 1 29 430.39 458.28 165.00 6 7.55 422.13 149.39 (62.45 633.4p (53.59 466.45 833.08 E20.79 10.0 251 429 468 124 650 532 145 29 3 300 1.020 809 146 (70.69 (65.88 (71.49 194.61 695.8) 473.6) 443.38 471.99 167.63 (76.0) 837.09 (31.33 14.9 106 70 505 350 857 147 265 106 138 1.424 649 142 (42.39 446.78 684.0) 868.29 199.09 407.29 475.95 (40.59 (39.41 4'9.33 631.8) 426.19
.- .,,m., , - _. . _ - - _ . _ - , -- - _ - - .
Table 3-8 Chlorophyceae densities (units /ml) and percent composition (in parenthesis) for samples collected on Lake Wylie frore December 1986 through November 1987.
sempli locat iem @f t h tml 3 2/69 /86 41/ 31/8 7 02/ fits 7 0 3 /10 / 8 7 04 /14 / 8 7 05 / IT/gbet e sSs 6Ub9/87 07/14787 08/11/87 09/35/97 10/13/87 11/10/97 j 210.0 0.3 114 107 60 21 224 1,240 3.312 2,261 6,455 2,206 1,798 555 r i 5.73 (12.3) i S.73 I 5.73 ( 6.29 i S.Il 8 8.69 (20.9) 634.4) 43Z.18 (26.48 616.8) i 5.0 245 99 SS 30 192 2,333 648 1,679 1,201 2,240 1,466 556 f $32.39 6 4.25 tie.Il 4 2.01 (32.15 617.89 (28.75 420.75 428.48 (29.43 628.11 415.1) u j 20.0 74 53 64 40 32 48 78 224 937 SMS 1,695 768 j t 6.33 632.99 ( 4.58 8 7.03 6 5.18 4 3.73 (34.99 431.89 439.79 (31.59 627.89 (37.09 i 15.0 #5 58 56 0 208 96 54 288 128- 735 1,425 654 i
6 7.8) (17.7) 6 6.69 tel (24.53 412.7) (17.69 427.28 8 9.95 141.38 429.25 117.4) oo 215.0 0.3 163 373 76 ISS 625 1,458 3,208 3.023 5,569 3,432 1,512 539
? e t 8.69 (18.9) 4 9.09 (13.9) (12.69 8 9.99 826.89 423.59 838.29 433.79 (26.89 (16.8) no 5.0 263 247 44 343 48 510 360 961 817 3,363 1.165 702 (13.99 412.89 8 7.03 (16.65 6 4.6) t 6.78 (25.49 621.8) 829.99 433.13 (28.58 (17.69 9.0 343 99 36 ISO 48 96 132 529 769 817 1,246 621 (19.59 6 7.09 4 8.48 (16.35 6 8.8) 6 7.63 (18.6) (18.9) 432.23 (39.9) 432.79 118.9) 220.0 9.3 196 107 60 90 1,506 3,758 1,604 3.544 6,454 4.536 1,594 801
( 9.33 GIS.9) 4 5.48 til.69 (17.33 610.49 (15.99 (18.99 (35.49 433.4) 619.28 (18.11 5.0 163 66 108 60 272 2,188 3,750 2,406 3,573 2.549 I,859 453 432.85 8 9.59 0 9.3) 622.25 4 S.49 (20.23 (15.99 (23.75 128.65 423.09 (23.23 428.75 10.0 160 136 76 le 32 192 168 288 601 SOS 2,017 del (14.19 (10.39 111.41 4 4.5) t 4.39 ( 9.59 (17.99 (22.69 (38.83 (24.59 (27.59 (12.7) 14.0 119 105 76 29 32 36 288 288 240 1,226 2,038 637 (18.99 616.39 (13.99 6 3.89 6 3.63 4 4.9) 427,23 837.51 (19.25 629.89 (28.99 (28.7)
i Tabid 3-9 Chlorophyceae biovolumes (m3 7,3) and percent composition (in parenthesis) for samples collected on Lake Wylie from December 1986 through November 1987.
Sa l i gDat es t e st.on Depthtg 32/09/06 01/11/87 02/16/87 01/10/87 04/14/sy 0 1751 6f7647W57/T4/s7 ee/II/s7 09/55/a7_ 10/13/e7 II/10/e7 250.0 0.1 90 11 IO 4 let 47e 544 Sie 1.622 872 511 105 (12.39 6 3.49 6 1.99 t 1.03 g e el (15.31 (11.29 til.99 026.9) 429.29 (25.99 (12.38 S.O 112 69 8 1 41 977 145 294 279 947 349 106 (19.19 8 4.79 6 1.19 6 0.15 t 5.18 (32.29 (12.19 (11.69 til.2? (28.03 (20.25 411.05 10.0 26 7 11 S e a 10 96 270 25 0 400 171 6 7.89 6 2.99 8 0.8) 8 1.99 8 1.05 8 2.20 6 2.0) ^(20.89 (32.25 413.79 624.99 (16.14 IS.O 35 9 6 0 27 12 17 4t 25 166 258 131 f S.39 4 2.18 6 1.59 tot t 3.55 8 6.3) f 7.09 (19.29 I 5.11 634.29 619.33 (19.49 y 23$.0 0.3 175 43 16 31 136 204 822 471 1.754 937 429 na (zi.6i ( ,.29 4 4.69 i S.29 ist.0, f . 2) 4:4.$$ Ein.0 (Ei.59 (20.69 tie.2) f .107
.39 un 5.0 361 67 4 113 3 6e 52 237 200 1.106 256 163 E55.49 4 8.75 0 0.89 411.25 4 0.98 I 2.0) 012.1) t 9.99 (19.9) 624.11 614.9) (10.63 9.0 418 17 3 60 3 12 42 126 220 206 249 92 (49.8) I 2.69 6 2.53 414.0) t 0.88 6 3.6) t 7.25 434.99 422.35 (21.69 (22.69 ( 6.89 220.0 0.3 547 17 12 12 1.27s $12 $56 758 1.74I 1.350 295 208 (IS.9) t 3.99 4 1.15 4 1.45 (27.99 4 6.39 lis.69 (12.59 (26.9) 424.19 (13.35 (19.3)
S.O 131 12 Il le 320 356 239 937 see 689 315 139 437.31 6 3.89 4 1.39 (12.29 (22.49 117.49 8 6.73 (10.39 819.8) (14.59 (10.79 822.39 10.0 86 26 8 1 5 2g 136 $5 113 211 40S 37 424.25 4 4.19 f 1.25 4 0.45 t 0.79 I 2.75 434.69 613.38 (23.41 415.73 tie.78 (13.59 14.0 122 16 6 3 5 $ 42 92 43 315 334 137 448.88 810.49 0 1.03 4 0.69 4 0.58 6 2.79 411.89 (35.48 612.39 635.31 (16.35 125.29
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3-27
i Tab 1'e 3-12 Cryptophyceae densities (units /ml) and percent composition (in parenthesis) for samples collected on take Wylie from December 1986 through November 1987.
Oncat ina Dept hiel 12/09/86 08/13/07 02/10/87 41/10/07 04/14/07 0 7 ~ 7 9/87 07/14/87 40/11/87 69/15/07 10/13/07 II/10/s7 907 239 84 53 1,826 2,042 3,063 1,604 2,152 102 1,103 75 2 210.0 9.3 145.8) 627.69 (12.29 614.41 451.18 (13.48 (29.8) (14.89 III.48 4 1.49 (16.28 622.75 5.0 539 346 144 160 224 1,240 288 729 168 143 756 425 427,2) 121.0) 016.59 (32.68 (14.15 4 9.49 412.78 ( 9.09 4 3.99 ( 1.9) 814.48 (!!.63 18.9 147 90 est to 32 72 12 24 e 61 1,022 572 (12.69 (22.09 (29.09 615.73 8 5.18 6 5.6) I 2,21 4 3.38 008 8 2.28 (16.75 412.68 15.9 99 41 280 70 e 4e 6 es de e 736 719 i 9.83 (12.69 (33.39 (13.4) tel t 5.38 ( 1.9) i 4.56 8 3.98 tel (15.09 (19.23 Od 0.5 135 Sl* 248 399 2.339 7,657 3,863 1,167 1.392 1,5a4 1,512 850 215.0 rly 44 s.73 456.79 (29.63 130.28 (47.73 (52.59 825.69 415.9) 4 9.5) 811.01 (26.08 (26.5)
CD 1,062 621 5.8 376 3,319 284 491 336 I,677 168 216 24 1,091 (19.98 858.13 (45.09 (19.4) 432.39 (22.19 til.89 4 4.99 0 8.8B 8 9.8) (25.99 (15.5) 9.0 184 619 64 170 112 12 24 96 24 8 593 935 (10.48 643.58 (35.9) 819.49 (20.51 6 9.9) t 3.39 6 3.48 8 1.09 (0) (15.59 128.99 1,151 433 236 189 4,263 4,667 2,261 1,519 1,772 1,001 3,453 332 229.9 G.)
(53.99 (41.19 421.59 423.39 448.93 (27.89 (22.48 ( S.19 8 9.7) ( 7. 3) , (17.58 (19.99 50 1,394 1,677 1,750 1,023 1,450 Sit 1,3s5 474 5.0 278 IS9 464 428.7B (27.38 440.8) (18.53 (43.23 (15.51 (15.99 (10.01 til.6) t 4.69 414.el (15.00 123 667 229 39 128 192 216 48 45 123 1,246 327 19.0 C10.89 451.49 ts3.Il $13.63 616.6) t 9.51 (23.09 6 3.78 4 2.48 4 4.99 (16.99 4 9.48 61 342 92 160 36 24 48 24 24 225 I,062 261 14.0 8 9.,9 153.08 (16.99 (24.61 4 1.59 6 3.2) i 4.59 4 3.19 8 1.99 8 5.4) (15.01 ( 8.5)
- - - , . , . , , , - - - , , . . - - , -. -. . - - - - - - - - - , . - - , .=- - . - - -. - ~ _ ____
3 Table 3-13 Cryptophyceae biovolumes (en 7,3) and percent composition (in parenthesis) for samples collected on Lake Wylie from December 1986 through Novenber 1987.
1 1
Sag l i locat ins,i Dept h f.9 TIT 5 TIT 6 e n / i s / s 7 e 2/ l e/ e 7 e t/ s e / 8 7 04 /14 / eit7 e5/ 7/g tut es6C7647NT5T71T73TTE/ tt/e7 e9/ts/07 10/13/a7 st/le/47 250.0 0.3 44% le7 28 lee 55e $44 e55 1.070 556 32 392 175' (68.08 (35.25 i S.59 (20.78 fl%.00 (10.78 (17.69 (24.75 9 9.25 t e.49 416.el (20.19 S.O lit 68 86 104 33 46e les ele 193 73 399 103 427.29 (19.28 (12.33 (30.09 64 19 (15.49 611.65 417.43 4 7.78 6 2.sl (23.01 til.5) 10.0 42 43 232 47 42 36 6 32 e 32 235 107 111.39 fle.Sl fle.69 139.49 t S.11 830.39 f 1.29 4 6.el 809 8 3.7) 014.33 (10.03 15.0 43 35 lie 56 e e e 20 15 0 306 222 0 6.68 8 7.53 (24.87 (22.29 fel t 4.19 6 3.39 4 %.79 8 3.08 tel (22.9) 833.08 g 215.0 0.1 459 319 130 290 790 2,263 687 1,017 167 679 629 246 1
, 156.89 (68.68 (37.25 44e.09 658.56 469.99 432.3B (23.99 ( 3.05 (34.38 426.el (19.11 to MD %.e lle 343 126 369 19) 496 20 64 32 305 371 307 436.96 (45.3) fee.69 436.69 453.09 (20.68 6 4.7) 4 2.68 8 2.Il 8 6.69 421.63 (20.19 9.8 37 238 46 les 289 16 3 4e 3 e 161 204 4 4.39 (37.49 839.13 (24.53 iSS.2) t 4.9) E 9.49 4 5.75 i O.29 tel (34.69 (21.Il 220.0 0.3 670 93 172 163 1,553 1.0e2 447 937 1.065 49% S3e 303 867.99 (21. 39 416.09 (39.59 133.99 ft).33 634.99 (15.38 116.49 i 7.29 823.93 120.03
%.e les %6 16e 42 523 433 266 298 Sto tie 353 233 829.9) tit.en (20.29 453.*) 43%.71 421.33 4 7.59 i S.9) 635.25 t 2.43 012.09 633.el 1
10.0 IS tis 17e 4 15 139 26 6 6 15 430 174 i 4.11 823.03 fle.39 4 2.75 3 2.29 1I9.29 8 7.79 6 1,49 4 1.09 0 1.99 (19.9) 637.35 14.0 le 57 64 116 2 3 6 3 32 43 49e 23e f 4.Il tie.e5 (10.5 9 + (22.51 8 9.29 ( l.7) t 3.68 ( 1.19 8 9.1) 4 2.09 (89.68 143.03
j Table 3-14 Densities (units /ml) and percent composition (in parenthesis) of all other classes (Chrysophyceae, Xanthophyceae. Euglenophyceae, Dinophyceae Chloromonadophyceae) in i samples collected on Lake Wylie from Dececber 1986 through November 1987.
i t
Say li tMat !*= rs=l_ T776f7FN7e7 02/1e/87 eline/e7 os/14/er 6> int /gbates ti etTet/e7 47/14/s1 ee/is/e7 e4/IS/e7 30/13/97 11/1o/87 les 329 284 69 723 3,591 1,532 SS7 1,S2e SIR 776 392 210.0 0.3 6 9.07 (39.00 848.28 (18.9) (2s.38 822.99 8 9.9) 8 S.98 8 7.9) 4 7.39 411.39 til.el 65 379 152 lie 16e 1,604 96 940 336 49e 552 424 S.e 4 3.31 (23.99 (40.49 (22.49 tie.Il 682.25 6 4.19 til.7) til.21 6 6.11 110.39 (11.49 j
25 90 $2e Ile 96 312 12 24 216 363 551 440 10.0 l 4 2.39 (22.09 837.38 (19.39 611.39 324.5) t 2.29 ( 3.38 8 9.19 4 S.99 0 9.91 8 9.58 49 39 416 Ele se $6 12 36 e 163 285 277 15.0 4 S.29 fle.Il 049.49 (21.38 4 9.48 ( 7.45 4 3.98 6 3.38 tel 8 9.09 t 5.89 i F.35 f 1,063 se2 760 878 491 325 f
OJ 215.0 9.3 163 SS 336 42e 59 1, 094 6 6.38 ede.il 432.45 t il .,3 i (10.,1 1 ,.39 lie.28 i S.il i e..) f 8.59 tii.2 g, t e.69
'l S.O i4f n9 140 66: see 875 m 400 240 7,6 26 66, t 7.99 (39.69 (22.79 432.39 813.09 (13.59 EIS.29 850.79 8 0.59 4 7.05 8 6.95 (16.7) 135 240 154 370 328 12e se 312 248 101 286 327 9.0 i
( 7.69 (17.S8 (38.69 (40.19 623.59 8 9.68 i S.49 (88.11 tie.Cl ( 4.89 ( 7.49 8 9.99 0.3 133 2os 324 14e 3.568 1,313 943 2,40S 3,438 735 613 489 220.0 (39.99 6 6.19 629.49 (29.49 (18.09 687.S9 6 7.79 8 9.39 632.63 6 e.9) i S.39 ( 7.29 263 244 53e 1,009 729 3,969 657 584 612 ele 27F 5.9 Ill die.29 838.08 (21.89 848.18 (33.38 4 6.75 417.99 4 6.39 ( 4.65 4 S.31 650.43 8 e.79 49 Ill lee Se 16 192 192 96 120 245 592 294 30.0 4 4.38 6 s.53 (22.29 (22.7) i 2.08 8 9.59 820.45 6 7.Sl 4 6.19 8 9.9) 4 7.9) { e.48 14.0 29 59 44 4e 16 72 72 de e 224 490 Ell 8 4.S9 i 9.11 0 e.9) t 6.Il i 1.99 ( 9.8) t 6.99 ( 6.29 tel 6 S.39 8 6.69 tie el i
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Phytoplankton derity ll units /ml) of depth:0.3 m 40000-cation 210.0 300M-20000-10000-0-
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l ,
DATE l Figure 3-1 Phytoplankton densities from three locations at 0.3 m on Lake Wylie from May 1983 through November 1937 I
1 3-32
~
Phytoplankton density (unh/ml) ci dopfh=5 m 40000-on .0 30000-20000-10000-0- a
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DATE Figure 3-2 Phytoplankton tensities from three locations at 5.0 m on Lake Wylie from May 1983 through November 1987, 3-33
l Phytoplankton blevolume (mm3/m3) of depth =0.3 m 15000-beation 210.0 10000-5000-h 0-150001
' ' ' ' ' ' ' ' 3 ' I bC0tl0n 215.0 'i 10000- t 5000-0-
3 ' I 15000-1 3
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5000-0-
i .. iiiiiiiii i i APRB3 APRB4 AMS _
APRd6 APR87 APR88 Precterational thit 1 tyratim TM1it cora.
DA1E Figure 3-3 Phytoplankton biovolumes from three locations at 0.3 m on Lake Wylie from May 1983 through November 1987.
3-3A
Phytoplankfono 'lovolume (mm3/m3) of depth =5 m 15000- g Locdon 210.0 10000-Y 5000-0-
' ' ' ' ' l ' ' ' ' ' '
15000-l l l l I bcdon 215.0 10000-5000-0-
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DATE Figure 3-4 Phytoplankton bf0 volumes from three locations at 5.0 m on Lake Wylie from May 1983 through November 1987.
3-35 l --
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Chlorophylla(mg/m3)of depth =0.3 m 30-bC0 tion 210.0 20-t l 10-0-
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DATE l
Figure 3-5 Phytoplankton chlorophyll a values from three loc 3tions at l 0.3 m on Lake Wylie from May 1983 through November 1987.
3-36
Chlorophylla(mg/m3)at depth =5m 30-location 210.0 20-2 0-30 r i- - -
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DATE Figure 3-6 Phytoplankton chlorophyll a values from three locations at 5.0 m on Lake Wylie from May 1983 through November 1987.
3-37
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l MONTHS Figure 3-7 A comparison of mean monthly solar radiation values in Langleys/ day (Ly/d) and Nephthalometric turbidity units i (NTV averaged for three locations) between May 1983-April ,
1984, April 1985-March !986, and December 1996-November l 1
< 1981.
4 i
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1
1 .
. ~ CHMTER'4: ZOOPLANKTON INTRODUCTION Previous studies by Industrial Bio-Test Laboratories, Inc. (Industrial Bio-Test 1974), Weiss et al. (1975), and Duke Power Company (1985, 1987) found that zooplankton in Lake Wylie deri.onstrated yea'r-to year variations in seasonal distribution. Trends observed were a function of normal environ-mental variability. The objectives of the Catawba Nuclear Station (CNS)
Two-Unit Gperational Study presented in this chapter were to:
i 1. document the taxonomic composition of zooolankten,
2. describe seasonal and cpatial patterns of zooplankton stancfing crops, and
3. compare zooplankton standing crop data collected during this study (December .1986 through November 1987) with data collected during the Unit 1 Operational Study (April 1985 through March 1986) and the Preoperational Study (May 1983 through April 1984).
I, METHODS AND MATERIALS Monthly zooplankton sampling for the CNS Two-Unit Operational Study was conducted from December 1986 through November 1987 at Locations 210.0, 215.0, and 220.0 -(Figure 1-2). A single bottom to surface net tow was taken at each location. The field and laboratory methods used in this study were reported in tho Preoperational Report (Duke Power Company 1985). Monthly zooplankton standing crop data from December 1986 through November 1987 (taxonomic composition and density) are presented in Appendix 4-1.
4-1
&M RESULTS AND DISCUSSION Standing Crop Lc. cation 215.0 had the highest zooplankton standing crops among sampling locations during every month of the Two-Unit Operational Study except January and November (Table 4-1). During both the Unit 1 Operational Study and the Preoperational Study, this location also generally had the highest zooplank-ton standing crops. Zooplankton are usually more abundant in the upper 10.0 m cf the water column throughout the year (Hamme 1982; Ruttner-Kolisko 1974).
Since bottom to surface tows were made at all locations, the higher concon-trations nf zooplankton observed at Location 215.0 were probably due to the fact that the entire column of water sanpled (usually 7.0 to 8.0 m) was within 10.0 m of the surface; whereas, at Location.s 210.0 and 220.0 (where !
the depth of the tows was approximately 12.0 to 13.0 m) the tows included volumes of water below 10.0 m where zooplankton were probably much less aaundant.
Peak Moplankton densities during the Two-Unit Operational Study were generally observed in May, September, and October, with the exception of Location 220.0, which showed a second peak in November. Minimum values usually occurred from December through March (Table 4-1; Figure 4-1).
During the Unit 1 Operational Study peak standing crops wer'., observed in March, April, and September. During the Preoperational Study, maximum l densities were observed from July through October. Minimum values during both previous studies usually occurred from December through February. L Standing crops @ served during this study were generally within ranges of those observed during the previous studies, with the exception that densities in March and April of the Unit 1 Operational St.ly were 4-2
considerably higher than those of the Two-Unit Operational Study and the Preoperational Study. This may have been a response to relatively high algal standing crops noted during these months (Chapter 3).
The Index of Variance data presented in Table 4-2 indicated considerable monthly variability between the Two-Unit Operational Study and each of the previous studies; however,.the overall summation of indices indicated that zooplankton densities during this study were more similar to those observed during the Preoperational Study.
The most unusual event involving zooplankton occurred during the interim sampling period immediately following the and of the Unit 1 Operational Study. Zooplankton standing crops durirq this quarter were the highest ever observed on Lake Vylie. These unusually high standing crops were probably due to the effects of drought conditions at that time. Low discharge and high retention times throughout the late winter and early spring provided optimum conditions for zooplankton development. Phytoplankton, which provide a major food supply for zooplankton, increased rapidly during the late winter and
. remained high through early spring; this was probably a result of increased light penetration in the water column. Turbidity values from February through April averaged 25 to 35% higher than those during the same months of the Preoperational Study (Chapter 3, Figure 3-7). This consistent food supply, coupled with high retention time in the reservoir, brought about the sub-stantial increase in zooplankton Standing crops observed from April through June 1986. In May and June 1986, phytoplankton standing crops decli9ed rapidly, while mean algal cell size increased; this probably ' represents the effects of extensive zooplankton grazing on phytoplankton.
4-3
Community Composition Fifty-three taxa were identified in samples collected on Lake Wylie from December 1986 through Novmaber 1987 (Table 4-3). The taxa were organized into three major groups. The Rotifera usually dominated zooplankton assemblages throughout the study, followed in importance by the Copepoda and the Cladocera. Trends of relative abundance ' among major zooplankton taxonomic groups were generally similar at sampling locations throughout this study (Table 4-1). During each of the previous Duke Power studies, 37 taxa were identified.
Copepods were most abundant from June through August, with a secondary peak in October. Minimum densities were observed from December through March.
Similar seasonal trends of copepod standing crops were observed during the two previous Duke Power monitoring *.tudies; however, the maximum value 3 ,3215.0, June) was much higher than recorded during this study (156.3 X 10 /m I
those recorded for the Unit 1 Operational Study (60.8 X 103 j,3, 215.0, May) and the Preoperational Study (68.2 X 103 f,3 , 215.0, October).
Immature copepods were a significant component of the zooplankton community {
during the study, accounting for over 19% of the total zooplankton density, as compared to 14% during the Unit 1 Operational Study and ITX, during the Preoperational Study (Table 4-3). Nauplii usually comprised well over half j l
of the copepod densities and were most abundant from June through October.
l The copepodites averaged over 3.5% of the total zooplankton, and cyclopoid copepodite densities were approximately five times hi0h er than those of calanoid copepodites.
4-4
Six species of adult copepods were identified during this study. The adults seldom accounted for over 10% of the copepod densities, and averaged less than 1% of the total zooplankton (Table 4-3). Among adult copepods, Cyclops thomasi was. relatively abundant from March through May and showed similar seasonal trends as were found during the two previous studies. Mesocyclops cdax was important a.nong adult populations from September through November, and in February. This taxon showed considerable year-to-year variability t
bstween studies. Tropocyclopg prasinus was important in July, August, and February. This taxon showed lower peaks and generally higher minimum values during this study than during the two previous Duke Power monitoring studies (Figure 4-2).
The Cladocera accounted for less than 5% of the total zooplankton during this study as compared to 8.6% and 7% during the Unit 1 Operational Study i and the Preoperational Study, respectively (Table 4-3). Cladocerans were most abundant from April through July, and in September. Minimum densities were observed from November through February (Table 4-1).
Fourteen cladoceran taxa were identified during this study. Bosmina longirostris was the most important cladoceran observed during all three studies, and accounted for nearly 3. 5% of the total zooplankton density 1
during this study (Table 4-3). g. longirostris comprised over 80% of the l
cladoceran densities in April, May, and November.cnd from January through I March. This pattern was generally similar to those observed during previous stu 'ies , with the exception that !. longirostris had comparatively low relative abundance in December of this study as compared to December values ,
I of previous studies. Diaphanosoma spp. was present from June through 4-5
_.--,-v.
,---.gm,.,-u-..- g, . , _ , , _ , ,.e. ,.w,-,,.,m, ,_,,,,,.,,aL_, ,m r er
September when it comprised over 40% of the cladoceran standing crops. The seasonal pattern of D.spp. observed during .this study was more similar to that observed during the Preoperational Study.
Daphnia spp. were occasionally important among cladoceran populations during April and May. Although the percent composition of D. spp. among cladocerans was lower during this study than during the previous Duke Power studies (Figure 4-3), their observed densities were usually similar to those reported during the Preoperational and Industrial Bio-Test studies (Duke Power Company 1985; Industrial Bio-Test 1974). This taxon was only observed at Location 215.0 in April and May 1987. The low frequency of D. spp. at this location cannot be explained in terms of thermal effects, since surface temperatures did not vary greatly between Location 215.0 and the othar location; during the Two-Unit Operational Study.
Rotifers dominated zooplankton assemblages throughout most of this study, and accounted for 75% of the total zooplankton (Table 4-3). Peak rotifer densities were observed in April, May, and October, while minimum densities occurred f ro";. January through March (Table 4-1). During the Unit 1 Opera-tional Study, peak standing crops occurred in March, April, October, and November; while maximum standing crops during the Preoperational Study were observed in March, April, September, and October. Minimum densities during the two previous studies occurred from December through February.
The most abundant rotifers during this study, as during the two previous studies, were Conochilus, Synchaeta, Polyarthra, and Keratella. Conochilus was the dominant zooplankton taxon during all three studies (Table 4-3). This 4-6
p taxon was most abundant in May, and from July through September, when it constiOMted over 50% of the rotifer densities. Synchaeta dominated rotifer populations from December through February, and accounted for over 75% of the rotifs as observed in January. Keratella contributed over 20% to rotifer densitier. in June, . November, December, and March; while Polyarthra accounted for at least 25% of the rotifers in April, May, and September through November. Although monthly variations in magnitude of relative abundance were noted between studies, trends of seasonal distribution among Conochilus, Synchaeta, and Keratella during this study were generally similar to those observed during the previous studies. Polyarthra did not show any consistent patterns between any two studies (Figure 4-4).
M MARY Zooplankton were sampled monthly on Lake Wylie from December 1986 through November 1987. Standing crop values were determined from bottom to surface
?.ows at three locations in the vicinity of CNS.
Peak zooplankton standing crops during the Two-Unit Operational Study were observed in May, and September through October, as compared to March, April,and September during the Unit 1 Operational Study; and July through October during the Preoperatior,al Study. Total zooplankton densities during March and April of this study were considerably lower than those observed during March-April of the Unit 1 Operational Study due to higher algal standing crops, which resulted from low turbidities and high light inten-sities recorded during March-April of the Unit 1 Operational Study. The extremely high zooplankton densities observed from April through June 1986 4-7
4' (during the interim following completion of Unit 1 sampling) were a result '
l of drought conditions occurring at that time. l l
Location 215.0 demonstrated the highest zooplankton standing crops during all three studies. This was probably due to shallower net tows at that location (i.e., 7. 0-8. 0 m). Tows at the other locations included large volumes of water below 10.0 m, where zooplankton are less abundant.
Fif ty-three zooplankton taxa were identified during this study. The Rotifera was the most diverse and abundant group, followed in importance by the Copepoda and the Cladocera. Rotifers have always been most abundant in spring
]
and early fall, with minimum values occurring during winter. Conochilus, the dominant zooplankton taxon during all three monitoring studies, was most abundant among rotifer populations during May, and July through September; while Keratella was most important during June, November, and December.
Synchaeta dominated rotifer populations from December through February.
Seasonal trends among these taxa were generally similar to those observed during the previous two studies. Polyarthra, which was most abundant among rotifers in spring and fall of this study, has shown considerable seasonal variability in all three studies.
I i
High copepod densities during all three studies have usually been observed during summer and mid-fall, with minimum sttnding crops occurring during the late fall and winter. Immature forms (primarily nauplii) dominated copepod populations during all three studies. The most important adult taxa during 1
al1 three studies were Cyclops, Mesocyclops, and Tropocyclops; however, 4-8 1
. . - - , . - - - . . - - - - - . - , . . . - - - - . - , - - _ _ . , . . . . - - - _ - . -, .- 1
adults have seldom accounted for more than 10% of the copepod densities.
Cladocerans were most abundant from April through July, and in September.
Minimum densities were usually observed from November through February.
Bosmina dominated cladoceran standing crops throughout most of the year, while Diaphanosoma was important among cladoceran populations during the summer. Daphnia was occasfionally abundant during April and May. Seasonal trends of copepod and cladoceran standing crops and the relative abundance of their major taxa during this study were generally similar to those observed during the previous Duke Power monitoring studies, with the exception that Daphnia showed lower relative abundance patterns during this study than r during the previous two.
Results of the Two-Unit Operational Study indicated that zooplankton standing crops and community composition were usually similar to results .
I observed during the Unit 1 Operational study and the Preoperational Study.
Year- to-year monthly variations in standing crop, community composition, and seasonal distribution were probably due to responses to external environmental factors, since no long term or consistent changes have been observed due to the operation of Units 1 and 2 of the Catawba Nuclear Station.
T h
l t
1 4-9 i r
P
. _ _ . _ _ _ , -.,_____-,-.v. _
, , , . , , , - - . . . - _ _ , . ._,_.y ,_.,m__, ,_ , . _ ,_ ,..,_ ,., ,_._ _ _
.y . _ , . -
. . _ - - ~ , .
LITERATURE CITED ;
Duke Power Company. Cnemical and biological characteristics prior to the operation of Catawba Nuclear Station, 316(a) Demonstration preopera-tional report. Summary of data collected 1973-1974 and 1983-1984.
Duke Power Company, Charlotte, NC. 134p.; 1985.
Duke Power Company. Chemical and biological characteri; tics during the first, year of operation of Unit 1 of Catawba Nuclear Station, 316(a) Demon-stration operational report. Summary of data collected April 1985 through March 1986. Duke Power Company, Charlotte, NC. 166p.; 1987.
Hamme. R ti. Zooplankton, p. 323-353. B J. E. Hogan and W. D. Adair (ed.).
Lake Norman sum ary, Technical Report DUKEPWP/82-02. Duke Power Company, Charlotte, NC. 460 p. ; 1982.
Industrial Bio-Test Laboratories, Inc. A Baseline / predictive environmental investigation of Lake Wylie, Catawba Nuclear Station, and Plant Allen.
Report to Duke Power Company. 2 vols. 743 p.; 1974.
Ruttner-Kolisko. Plankton rotifers: biology and taxonomy. Die Binnengewasswer. 24(1) Supplement 146 p.; 1974.
Weiss, C. M.; Campbell, P. H. ; Anderson, T. P.; Pfeander, S. L. The lower Catawba lakes

characterization of phytozooplankton communities and their relationships to environmental factors. Department of Environ-mental Sciences and Engineering, School of Public Health, University of North Carolina at Chapel Hill, Chapel Hill, NC. ESE Pub. No. 389.
395 p.; 1975. '
i l
1 i
I l
l i I
l 1
4-10 I 1
i .
r Table 4-1. Total zooplankton densities (no. X 102 /m3) and densities of major zooplankton groups from samples collected on Lake Wylie from December 1986 through November 1987.
Locations 210.0 215.0 220.0 Sampling Date Taxon Density { Density {}} Density {3} 12/09/86 Copepoda 6.43 (18.7) 5.38 (5.2) 3.42 (9.4) Cladocera 1.73 (5.1) 0.56 (0.5) 0.46 (1.3) Rotifera _26.22 (76.2) 96.00 (94.2) 32.41 (89.3) Total 34.38 101.94 36.29 01/13/87 Copepoda 2.56 (7.7) 1.43 (6.1) 2.52 (7.1) Cladocera 3.84 (11.5) 0.34 (1.4) 1.32 (3.7) Rotifera 26.91 (80.8) 21.56 (92.4) 31.70 (89.2) Total 33.31 23.33 35.54 02/10/87 Copepoda 4.68 (19.7) 1.60 (2.0) 4.77 (24.4) Cladocera 4.69 (19.7) 0.20 (0.2) 2.65 (13.6) Rotifera 14.35 (60.6) 78.21 (97.8) 12.10 (62.0) Total 23.71 80.01 19.52 03/10/87 Copepoda 5.02 (32.8) 6.02 (13.9) 7.68 (36.7) Cladocera 2,06 (13.4) 1.76 (4.1) 3.35 (16.0) Rotifera 8.24 (53.8) 35.53 (82.0) _ 9.91 (47.3) Total 15.33 43.31 20.94 04/14/87 Copepoda 10.88 (10.4) 23.18 (13.3) 8.45 (5.4) Cladocera 13.10 (12.6) 11.90 (6.8) 11.48 (7.4) Rotifera 80.21 (77.0) 138.75 (79.9) 135.22 (87.2) Total 104.19 173.83 155.16 05/12/87 Copepoda 9.96 (5.9) 30.73 (8.2) 15.36 (4.4) Cladocera 11.88 (7.1) 26.54 (7.1) 22.04 (6.3) Rotifera 146.28 (86.9) 314.98 (84.7) 312.51 (89.3) Insecta 0.18 (0.1) 0 (0) 0.18 (<0.1) Total 168.29 372.24 35n.09 06/05/87 Copepoda 54.07 (47.0) 156.29 (67.0) 36.98 (28.6) Cladocera 18.02 (15.7) 4.77 (2.0) 14.92 (11.6) Rotifera 42.47 (36.9) 72.34 (31.0) 77.20 (59.8) Insecta 0.44 (0.4) 0 (0) 0 (0) Total 115.00 233.42 129.09 07/15/87 Copepoda 18.55 (16.3) 45.49 (29.4) 15.64 (23.9) Cladocera 10.17 (9.0) 6.28 (4.0) 9.47 (14.5)
Rotifera 84.61 (74.5) 102.91 (66.5) 39.83 (60.9)
Insecta 0.18 (0.2) 0 (0) 0.44 (0.7) Total 113.52 154.68 65.39 4-11 m
i.
4 Table 4-1 page 2 of 2 Locations 210.0 215.0 220.0
' Sampling Date Taxon Density {}} Density {%} Density {}}
08/11/87 Copepoda 19.42 (15.2) 39.93 (24.9) 21.67 (22.3)
~
Cladocera 6.04 (4.8) 3.36 (2.1) 3.92 (4.0) Rotifera 102.21 (80.0) 117.17 (73.0) 71.73 (73.7) Total 127.67 160.46 97.32 09/15/87 Copepoda 28.52 (32.6) 32.40 (28.5) 34.18 (36.0) Cladocera 12.02 (13.8) 2.60 (2.3) 12.64 (13.3) Rotifera 46.86 (53.6) 78.76 48.06 (50.6) Total 87.40 113.61 (69.3) 94.87 10/23/87 Copepoda 37.97 (21.2) 46.05 (23.0) 16.86 (21.8) Cladocera 1.38 (0.8) 1.95 (1.0) 0.42 (0.5) Rotifera 139.30 (78.0) 152.41 (76.0) 60.06 (77.6) Total 178.65 200.40 77.34 11/12/87 Copepoda 7.47 (8.5) 10.53 (10.6) 11.76 (8.2) Cladocera 1.87 (0.2) 1.62 (1.6) 1.02 (0.7) Rotifera 79.88 (91.3) 87.11 (87.8) 130.55 (91.1) Total 87.54 99.26 143.32 l i 4 e I l l l
)
l l l 4-12 i l I
Table 4-2 Monthly Index of Variance for zooplankton densities comparing the Two-Unit Operational Study (U2S) with the Unit 1 Opera-tional Study (U1S=U25-UIS/U2S+UIS) and the Preoperational Study (POS=U25 -POS/U2S+POS). 210.0 215.0 220.0 i-Month U15 POS U1S POS U15 POS i Apr -0.45 +0.48 -0.36 +0.05 -0.27 +0.45 May +0.31 +0.37 +0.43 +0.28 +0.48 +0.70 ; Jun -0.11 +0.16 +0.11 +0.50 -0.05 +0.17 : Jul +0.15 -0.17 +0.08 +0.02 -0.16 -0.13 Aug +0.18 -0.13 -0.19 -0.08 -0.04 -0.13 Sep -0.36 -0.37 -0.38 +0.04 -0.43 -0.33 , Oct 0 -0.03 -0.23 -0.25 -0.22 -0.27 l t Nov +0.60 -0.16 +0.19 +0.06 +0.86 +0.19 i Oec +0.34 +0.50 +0.59 +0.65 +0.31 +0.22 Jan -0.56 -0.13 -0.18 -0.43 -0.35 +0.04 Feb -0.30 -0.20 +0.08 -0.48 -0.12 -0.21 Mar -0.83 -0.55 -0.72 -0.44 -0.72 -0.34 Sum -1.71 -0.23 -0.58 -0.08 -1,27 +0.11 ; i 4 i 4
=
I
, i f
4-13
1
Table 4-3 Zooplankton taxa, percent frequency among samples (% Fr), and percent composition (% Co) of total zooplankton observed in samples collected on Lake Wylie from May 1983 through April 1984 (POS = preoperational study), April 1985 through March 1986 (U15 = unit 1 study), and December 1986 through November 1987 (U2S = two-unit study). POS U15 ll25 Taxon % FM Co % F M Co % F M Co COPEP0DA (19.0) (14.7) (20.2) Cyclops thomasi Forbes 38.9 0.3 22.2 0.1 25.0 0.1 C. vernalis Fischer 0 0 0 0 2. 8 < 0.1 Diaptomus bergei Marsh 13.9 <0.1 0 0 0 0 D. mississippiensis Marsh 5.6 <0.1 13.8 <0.1 22.2 0.2 D. pallidus Herrick 2.8 <0.1 8. 3 <0.1 11.1 <0.1 Resocyclops edax (Forbes) 41.7 0.4 38.9 0.3 50.0 0.4 Tropocyclops prasinus (Fis.) 63.9 0.4 47.2 0.2 50.0 0.2 Calanoid copepodites 63.9 0.4 38.9 0.1 69.4 0.8 Cyclopoid copepodites 100.0 4.3 100.0 3.1 100.0 3.7 Nauplii 100.0 13.1 100.0 10.7 100.0 14.9 Unidentified parasitic copepods 5.6 <0.1 0 0 5.6 <0.1 CLA00CERA , ( 7.0) ( 8.6) ( 4.7) Bosmina longirostris (Muller) 97.2 3.9 72.2 5.6 97.2 3.4 Bosminopsis dietersi Richad 8.3 0.1 11.1 0.3 13.8 0.2 Ceriodaphnia spp. Dana 8.3 0.1 19.4 0.1 5. 6 < 0.1 Chydorus spp. Leach 0 0 0 0 2.8 <0.1 2 Daphnia ambigua Scourfield 13.9 <0.1 0 0 5.6 <0.1 D. leavis Birge 0 0 0 0 2.8 <0.1
5. parvula Fordyce 30.6 0.3 27.8 0.5 33.3 0.3

5. spp. Muller 41.7 0.4 41.7 1.0 41.7 <0.1 Diaphanosoma leuchtenbergianum Fischer 30.9 2.1 50.0 1.0 36.1 0.6 0, spp. Fischer 0 0 0 0 5.6 <0.1 Holopedium gibberum Stingelin 5.6 <0.1 0 0 5. 6 < 0.1 H. amazonicum Stingelin 0 0 0 0 2. 8 < 0.1 Eeptodora kindtii (Focke) 2.8 <0.1 2. 8 <0.1 0 0 t Moina microcura Kurz O O O O 2.8 <0.1 '
M. spp. Baird 0 0 2.8 <0.1 0 0 i Eydigia quadrangularis 0 0 0 0 2.8 <0.1 Unidentified Cladocera 0 0 5.6 <0.1 0 0 I ROTIFERA (74.0) (76.7) (75.1) Anuraeopsis spp. Gosse 33.3 0.6 41.7 1.4 30.6 0.3 Asplanchna spp. Lauterborn 0 0 2.8 ') .1 2.8 <0.1 Brachionus angularis Gosse 25.0 0.9 11.1 0.3 16.7 0.3
8. budapestensis 0 0 0 0 8.3 0.1

5. calcyflorus Pallas 8.3 0.1 5.6 0.1 11.1 0.1-

5. caudatus Barrois & Daday 0 0 2.8 <0.1 27.8 0.5
'5. 'spp. Pallas 8.3 0.9 13.9 0.4 2.8 <0.1 fephallodella Bory de St. V. 0 0 ,
0 0 2. 8 <0.1 Collotheca spp. Harring 38.9 2.6 50.0 0.5 52.7 0.7 Conochiloides spp. Hlava 41.7 4.2 41.7 1.2 41.7 1.5 Conochilus unicornis Rous. 83.3 29.6 80.6 27.1 100.0 25.6 4-14
Table 4-3 page 2 of 2 POS U15 U25 Taxon % Fr % Co % F R Co % FH Co Filinia spp. Bory de St. V. 2.8 <0.1 11.1 <0.1 19.4 <0.1 , Gastropus spp. Imhof 11.1 0. 2 2.8 <0.1 22.2 0.1 Hexarthra spp. Schmada 19.4 0.4 36.1 <0.1 19.4 0.2 Kellicotia bostoniensis (Rou.) 30.6 0.2 36.1 0. 2 50.0 0.4 Keratella spp. Bory de St.V. 100.0 13.9 94.4 7.8 94.4 9.3 Lacane spp. Nitzsh' 0 0 0 0 2.8 <0.1 Mytlina spp. Bory de St. V. 0 0 2.8 <0.1 0 0 Notholca spp. Gosse 5. 6 < 0.1 2.8 <0.1 2. 8 < 0.1 Ploesoma hudsonii Brauer 0 0 0 0 2.8 <0.1 P. truncatum (Levander) 41.7 <0.1 58.3 1. 6 50.0 1.7 Eolyarthra euryptera (Wier.) 2.8 0.1 0 0 2. 8 <0.1 P. vulgaris Carlin 0 0 0 0 47.2 14.0 F. spp. Ehrenberg 100.0 12.5 97.2 15.0 52.7 6.1. Fompholix sulcata Pejler 0 0 0 0 2. 8 < 0.1 P. spp. Gosse 0 0 0 0 5. 6 < 0.1 Ftyoura spp. Ehrenberg 0 0 2.8 <0.1 0 0 4 Synchaeta spp. Ehrenberg 75.0 6.1 97.2 18.4 88.8 11.5 Tricocera capucina (Wier.) 19.4 0.2 13.9 0. 2 25.0 0.2 T. cylindrica (Imhof) 33.3 0.6 11.1 <0.1 8.3 0.2 T. porcellus (Gosse) 22.2 0.3 0 0 25.0 1.4 - T. spp. Lamark 22.2 0.3 47.2 1.7 33.3 0.5 6rder Bdelloida 0 0 5.6 <0.1 13.9 <0.1 Unidentified Rotifera 41.7 0.2 36.1 0.2 19.4 0.1 INSECTA (<0.1) ( 0) (<0.1) Chaoborus spp. Lichtenstien 2.8 <0.1 0 0 8. 3 < 0.1 , f f I i 4-15 1 4
,~ ,-,
Zooplankton density (No./m3) 1000000- l l B00000- lJeation 210.0 n l 600000-400000-D l l I 3 1000000-1 1.9 = 10( c fl B00000- Iscation 215.0 600000- .b 400000-l 200000-
\
0-3 : l l I 1000000-1 B00000- lAcation 220.0 600000-400000 j l 200000 U U 0
. i g i i g i i ;iiig i i ; i i i l
APR66 APR87 APR88 ! APAB3 APR84 APR85 Prtoperaticnal thit I cpraticn Tethit cpra. DATE Figure 4-1 Monthly zooplankton densities at three locations on Lake Wylie from May 1983 through November 1987. l 4-16 I
4---O Preoperational Study (May 1983-April 1984)
; :. Unit 1 Operational Study (April 1985-March 1986) x- . -* Two-Unit Operational Study (December 1986-November 1987)
Cyclops thornosi Mesocyclops edox 100-10 0 j t 80- 80-
\ . 60- ,t\ .%
60- o . 40- I 40- (* is b$ i !\ ./ . si / 20-l *, i < g s, l,' 20- .\\o y j *, , s t
~'s, ,s*~ - )i % 'or , ,n z A w i }A s oA$>dY AE} }A5 oA$)hE 9
t~ sn o c. E 8 Tropocyclops prosinus 10 0 - , g , I i o
I e0- ,
o\ I l , s
i I \ t t
' \ /j 60- \! y 's 40- .p ' T.iisl - .?' \'l .A. /. \ .
20-ry=,/k' s
*~ , /
0 , , , , , . . , s a l A M J J A 5 0 N o J F M MONTHS i F0gure 4-2 Percent composition of major copepod taxa among adult coepod densities averaged for three locations on Lake Wylie during l the Precoerational Study, the Unit 1 Operational Study, and - the Two-Unit Operational Study. 4-17
l l
o. _ . .o Preoperational Study (May 1983-April 1984)
M Unit 1 Operational Study (April 1985-March 1986) x-- d Two-Unit Operational Study (December 1986-November 1987) BoSmino longiroStriS Diophonosom0 Spp. 100 - o--o- o, 10 0 - A o' *\ . 80- ,\ -
.! \ 80-o
{ l! l \ R 60- { l \l \ 60 R I. i w
.L. c'j ,o. -{ \q 'o-ll{. %d.
y.
>\
20 - p 20- 5 0 0 I ' Z A M J J A $ 0 N O J F M A M J J A $ 0 N O J F 9 b w 2 6 o Daphnio Spp.
.,. 100-w.
80-60-40- p s l l 20- d ,o f l 0 , , , , , , A M J J A $ 0 N O J F M MONTHS . Figure A-3 Percent composition of major cladoceran taxa among total cladoceran densities averaged for three locations on Lake Wylie during the Preoperational Study, the Unit 1 Operational Study, and the Two-Unit Operational Study. 4-18
)
o- - - -o Preoperational Study (May 1983-April 1984)
. . Unit 1 Operational Study (April 1985-March 1986) w -* Two-Unit Operational Study (December 1986-November 1987)
Conochilus Synchaeto 10 0 - 80-r 60- , $s, ' o -
\'
l\ , \ ,'s l \ t. d v\ ,l-Nj \ 5 4 '*r
/* \o on s
y' V's ~ \ 'l s ( 'k\, g , z O l . , , , , ,,,,., 1 J w A M J J A S oN D j F M 9 A N J J A s oN o J F W t-sn E I o Polyarthro Kerotello 10 0-
, 80-5 - /.5 /
li
'0- j j \, \ /
li '
\ ~
A i l'\ g a t i Ag \ g 20- ,e \ j,A l '
- ; .o < ?. / v N.' s.s A w i i s64o ) i E iE} }is oA$idE MONTHS Figure 4-4 Percent composition of major rotifer taxa among total rotifer densities averaged for three locations on Lake Wylie for the Preoperational Study, the Unit 1 Operational Study, and the Two-Unit Operational Study.
4-19
CHAPTER 5: MACR 0 INVERTEBRATES INTRODUCTION Previous studies by Lenat and Weiss (1973), Industrial Bio-Test Laboratories, Inc (1974), and Duke Power Company (1985,1987) have shown that benthic - macroinvertebrates in lower Lake Wylie demonstrate year-to year variations in standing crop and taxonomic composition in response to normal environmental The objectives of the Catawba Nuclear Station (CNS) Two-Unit
i factors.
Operational Study of macroinvertebrates were to: t t
1. document the taxonomic composition of macroinvertebrates, '

2. describe the distribution, relative abundance, and biomass of littoral macroinvertebrates, and

3. compare macroinvertebrate standing crop and taxonomic data collected during the Two-Unit Operational Study (February, May, August, November 1987) with data collected during the Preopera-tio'nal Study (May, August, November 1983, February 1984), and the Unit 1 Operational Study (May, August, November 1985, February ,
1986). l METHODS AND MATERIALS l l Quarterly benthic macroinvertebrate sampling was conducted in February, May, ' August, and November 1987 in the littoral zone (approximately 4.0 m) at Locations 210.0, 215.0, and 220.0 (Figure 1-2). Three replicate modified Petersen grabs were collected at each location. Field and laboratory methods used in this study, as well as detailed location descriptions, are presented 5-1
/
in the Preoperational Report (Duke Power Company 1985). Quarterly macro-invertebrate standing crop data (density and biomass) are presented in
' Appendix 5-1.
The computer generated graphs of macroinvertebrate standing crop parameters presented in this report include interim data collected in May, August, November 1984, February 1985, May, August, and November 1986. These data are presented to provide continuity of sampling data, but will not be discussed in the following text. RESULTS AND DISCUSSION Physical and Chemical Parameters Sediment temperatures (quarterly means) ranged f rom 6.8 C in February, to 29.9 C in August. Dissolved oxygen values at depths sampled for macroinver-tebrates were generally greater than 6.0 mg/1, except at Location 215.0 in August when the 00 was 3.3 mg/1. Temperature and D0 values recorded during this study were generally within ranges considered sufficient to maintain estaf;?ished benthic communities (Duke Power Company 1985). A qualitative determination of substrate type was done at each location throughout the study. Substrates at Locations 210.0 and 220.0 consisted of silt and clay, as well as some fine organic detritus. Sediments at Location 215.0 were characterized by silt and clay, as well as significant amounts of sand. 5-2
I Standina Crop Mean quarterly macroinvertebrate densities were highest in February and lowest in A'Jgust (Table 5-1 Figures 5-1 through 5-3). During the Unit 1 Operational Study and the Preoperational Study, maximum values were Liso observed in February. Minimum densities occurred in May during the Unit I study and in August during the Preoperational study. Spatially, location 220.0 had higher densities than other locations during February rand August, while location 210.0 had the highest densities in May and November. During the Unit 1 study, Location 215.0 had maximum densities in all sample periods ! except November. This location also demonstrated the highest densities among all sampling periods of the Preoperational Study except August. Densities i during this study averaged approximately 15% higher than those of the Unit 1 i J
study but were similar to those of the Preoperational Study.
1 Macroinvertebrate biomass values were highest in February, with minimum : 1 values observed in May (Table 5-2; Figures 5-1 through 5-3). During the two previous Duke Power monitoring studies, maximum biomass was also cbserved in i ! February, with minimum values in November. Biomass during this study averaged i 5 and 2.5 times higher than during the Unit I study and the Preoperational l study, respectively. This was due to unusually high numbers of Corbicula j collected in replicates at Location 210.0 in February (Tables 5-1 and 5-2).
! Although, some variability was observed among studies, standing crop values < \
during this study were usually within ranges of those observed during the two i
previous studies, i
I i 1 5-3 !
J Community Composition Twenty-nine genera and seven phyla were identified during this study (Table 5-3). Five major taxonomic groups accounted for over 90% of the organisms observed (Table 5-4). The Family Chironomidae was the most diverse and , i' abundant group, followed in importance by the Class 011gochaete, the Family Chaoborjdae, and the Families Corbiculidse and Ephemeridae. Overall community ; r composition during tt.i s study was comparable to that observed during the ! Preoperational Study. I Chironomids usually dominated macroinvertebrate assemblages during this j sLudy, and were most abundant during February. Lowest densities were usually l i ; observed in August (Table 5-1). Chironomids showed considerable spatial variation throughout the study. Similar trends were observed during the two ,- ) previous studies. ! 1 I 1 j During the Preoperational Study, five taxa were ranked among the most abundant chironomids (Figure 5-4). These tax'a were also observed during the Unit 1 and Two-Unit Operational Studies. Coelotanypus has always been the , most abundant benthic taxon. The relative abundance of Chironomus during this ; study was somewhat higher than during the previous studies. The relative f 4 abundance of Ablabesmyia during this study was more similar to that observed j I - during the Unit 1 study; while Cryptochi ronomus and Dicrotendipes showed ! I - relative abundances similar to those of the Preoperational Study. Tanytarsul ; j : J cnd Procladius, which accounted for 9.3% of the total density during the Unit f l 1 study, were far less important during this study and the Preoperational i Study. Cladotanytarsus was far more important during this study, accounting f - r ] i I ! 5-4 f } i i
l l I for 4. 6% of the total density as compared to <1.0% during the previous ) studies (Table 5-3). The Chroboridae [C,haoboris C punctipennis) were most abt dant in May, while low I densities were observed in November (Table 5-1). During the Preoperational [ Study, maximum densities were also observed in May, with minimum values in February. During the Unit I study, maximum densities were in February, and minimum densities occurred in May. Also, Chaoborus was more abundant during the Unit 1 and Two-Unit studies than during the Preoperational Study. Oligochaetes were most abundant in August, with minimum densities in May. During the Unit 1 study, highest densities also occurred in August, with minimum densities in November. During the Preoperational Study, highest densities occurred in llovember and lowest densities in August. The perce.it composition of oligochaetes during this study was similar to that recorded during the Preoperational Study (Table 5-4). Corbicula was most abundant in February, with m'nimum standing crops observt1 in Augult. This same trend was observed during the Preoperational Study. During the Unit 1 Study, Corbicula were most abundant in February, with minimum densities in November (Figure 5-5). Corbicula have always dominated macroinvertebrate biomass samples due to their large size; however, during tnis study their overall biomars was much higher. This was due to very high numbeis of clams in replicates collected at Location 210.0 in February (the mean density was twice that of the highest previously recorded). Also, several very large clams were observed in one of 5-5
the replicates. This event also contributed significantly to the overall density of Corbicula during this study, which was higher than those observed during the previous studies. It should be noted that Corbicule accounted for 4 nearly 30% of the total density of macroinvertebrates during the Industial j Bio-Test study of 1973-1974 (Industrial Bio-Test, 1974). i 2 Curbicula die-offs have not been recorded in Lake Wylie since August 1984; this die-off was concentrated primarily in the upper portion of the lake, tbove Plant Allen. i The Ephemeridae, represented by the genus Hexagenia, accounted for 2.4% of 4 the total density during this study (Table 5-4), as compared to 3.4% during l j the Unit 1 study, and over 5% during the Preoperational Study. Hexagenia was most abundant in February, with minimum densities in August. Similar seasonal d trends were observed during the two previous studies. Spatially, Hexaaenia i ware not found at Location 215.0 during this study. During the Unit 1 Study, Hexaoenia were only observed once at this location ( : May). Individuals were I collected at. this location in May, November, and February of the Preopera-tic ' Study; however, Hexagenia has never accounted for more than 1% of the I ! densitj at this lot.ation. I The absel.ce of Hexaaenia at Location 21! 3 during this study was probably l due to less suitable substrates at this location (i.e. , high sand content) l rather than any thermal effects. Hexagenia (a burrowing mayfly) requires i j substrates composed primarily of silt, clay, and organic detritus in order i 9 La construct stable burrows (Weiss, et al. 1978). During July 1988, Hsxaaenia were collected by Duke Power Company biologists f rom silt-clay ' substrates much closer to the CNS discharge than Location 215.0. 56
SUMMARY
l Benthic macroinvertebrates were collected from the littoral zone at Locations 4 210.0, 215.0, and 220.0 on Lake Wylie in February, Mey, August, and November I 1987. Substrates at these locations consisted of silt, clay, and varying 1 amounts of organic matter and sand. Temperatures and dissolved oxygen were generally within ranges considered suf ficient to support established benthic macroinvertebrate communities. l ! Macroinvertebrate standing crops during this study were highest in February > 1 i and lowest in August, with minimum biomass observed in May. Locations 220.0 3 and 210.0 had higher densities than other locations during Fabiuary and ! August, and May and November, respectively. Biomass was usually highest at Location 210.0. Benthic macroinvertebrate standing crops observed during the ! l Two-Unit Operational Study were generally within ranges of those observed l during the previous two studies. 1 ) l Twer.ty-nine genera of macroinvartebrates were identified during this study. , I
! The Chironomidae, Chaoboridae, 011gochaeta, Corbiculidae, and Ephemeridae i i ; accounted for over 90% of the total density. Community composition during !
this study was similar to that observed during the Preoperatic,nal Study.
I l 1 ! i Chironomids dominated macroinvertebrate densities during all three studies, ! J 1 and the chironomid taxon Coelotanypy has always been the most important , member of this family. Other important chironomids observed during this study l 1 included Chironomus, Cladotanytarsus, and Dicrotendipet. Chironomid relative abundance was similar to - that observed during the Unit 1 study, but lower l I than that of the Preoperatio'i: 1 Study. ) j ! I 1 ) 5-7 l 1 I
The relative abundance of Corbicula was higher during this study than during J the previous two studies due to very high densities observed among replicates
collected at Location 210.0 in February. These samples also included several very large clams, which contributed significantly to the overall biomass of l
Corbicula during this study. Percent composition of Corbicula during this study -was still much lower that that observed during the First Year Preoperational Study of 1973-74. j Chaoborus standing crops during this study were similar to those observed during the Unit I study, but were higher than those of the Preoperational Study. Oligochaete relative abundance was similar to that of the Preopera-tional Study, and higher than that of the Unit 1 study. Hexagenia seldom accounted for more than 10% of macroinvertebrate densities during any study, end were not collected at all at Location 215.0 during this study. The e. absence of HJ xagenia at Location 215.0 was probably due to less suitable substrates at this location. Considerable year-to year variability among macroinvertebrate standing crops has always been observed between CNS monitoring studies. This is probably due to normal environmental variability in Lake Wylie coupled with the psriodicity of sampling and occasional substrate variability. 5-8
LITERATURE CITED Duke Power Company. Chemics 1 and bioMgical characteristics prior to the operation of Catawba Nuclear Station, 316 (a) Demonstration. Summary of : data collected 1973-1974 and 1983-1984. Duke Power Company, Charlotte, NC. 134 p.; 1985. Duke Power Company. Chemical and biological characteristics during the first year of operation of Unit 1 of Catawba Nuclear Station April 1985-March 1986. 316 (a) Demonstration. Duke ' Power Company, Charlotte, NC.166 p. ; 1987.
Industrial Bio-Test Laboratories, Inc. A baseline / predictive environmental investigation of Lake Wylie, Catawba Nuclear Station, and Plant Allen. ;
Report to Duke Power Company. 2 vols. 743 p.; 1974. ' j l Lenat. D. R. and C. M. Weiss. Distribution of benthis macroinvertebrates in Lake Wylie, North-South Carolina. Dept. of Environmental Sciences and ' Engineering, University of North Carolina, Chapel Hill, NC. 75 p.; 1973. I Weiss, C. M., T. P. Anderson, P. H. Campbell, and D. R. Lenat. Environmental effects of power plant operation. Belews Lake, Years V and VI, July
; 1976-June 1977. Department of Environmental Science and Engineering, I
University of North Carolina at Chapel Hill, Chapel Hill, NC. 601 p.; ), 1978. , i i 4
+ )
1 l 1 i l I l l 5-9
- - . _ . - - - - - _ _ . . - _ - . ~ - . - - _ _ - .
Table 5-1 Total macroinvertebrate densities (no./m 2), and densities and percent composition (in parenthesis) of major taxonomic groups, from samples collected at locations on - Lake Wylie in Fe' mary, May, August, and November 1987. tocatson Date Chironomidae Chaoboridae 011gochaeta Ephemeridae Corbiculidae Others Total Density 210.0 02/10/97 724 90 413 39 633 142. 2,040 (15.53 (4.83 (20.?! (1.9) (31.0) (7.0) 215.0 517 155 75 0 116 65 931 1 (55.63 (16.7) (8.25 (Of (12.5) (7.03 220.0 2,326 26 917 220 142 375 4,006
; (58.0) (0.69 (22.9) (5.51 (3.6) (9.4) i 210.0 05/12/87 711 1,447 39 13 194 90 2,494 0 (2s.53 (5s.01 (1.61 (0.59 (7.8) (3.63 l 0 194 j 215.0 478 G17 375 155 1,719 j (27.8) (30.11 (21.53 (0) (11.33 (9.0) l i' o, 220.'O 1,163 116 39 90 151 101 1,770 8, (65.7) (6.63 (2.1) (5.13 (10.23 (10.2) o -
216 0 08/11/87 362 233 ~ 78 13 155 103 944 ] j (38.43 (27.4) (8.23 (1.3) (16.43 (11.0) 1 0 193 39 1,033 4 215.0 271 13 607 (26.23 (1.29 (58.8) (0) (10.0) (3.0) 220.0 491 233 1,2?9 13 129 207 2 J52 {- (20.8) (9.9) (54.43 (0.61 (5.5) (8.8) 210.0 11/12/87 1,473 0 90 73 220 258 2,119 l (3.7) (10.41 (69.53 (0) (4.25 (12.2) 215.0 749 0 788 0 155 142 1,834 i (40.8) (0) (43.09 (0) (0.4) (7.8) 1 1 220.w 475 26 530 78 310 168 1,590 l (30.?) (1.61 (33.3) (4.93 (19.5) (10.63 1 i i w-yw-m-- *-,.yg , g---wm.g-*9w,e y+gy 9.-9-,,y -&+- ,yy:g y-y, 9 9 ,yy w n-- 7Mwv T D'~' T'W 'N CTW- T'-*'*'**'-W 1 - W' # *'-' "-""'7"' 'W *i - ' ' " Y'*- - 'T' W*N ?
fable 5-2 Mear biomass (blotted wet weight in mg/m ), and percent composition (in parenthesis) of major taxonomic groups (excluding Corbicula), from samples collected on Lake Wylie in February, May, Augpst, and November 1987.Corbicula biomass is listed separately and expressed in g/m . 02/10/87 05/12/87 98/11/87 11/12/87 Taxon 210.0 215.0 220.0 210.0 215.0 220.0 210.0 215.0 220.0 i10.0 215.0 220.0 Chironomidae 1,393 1,220 1,069 1,460 1,030 2,776 482 478 260 1,846 959 766 (67.8) (71.5) (18.8) (46.4) (84.21 (39.6) (9.8) (57.2) (7.4) (57.0) (51.11 (19.2) Chaoboridae 45 79 24 420 59 27 53 4 29 0 0 41 (2.11 (4.61 (0.41 (13.31 (4.8) (0.4) (1.1) 80.5) (0.83 (0) (0) (1.0) 011gochaeta 466 104 3,269 35 95 106 48 244 1,760 53 791 1,218 in
(22.8) 16.11 (57.5) (1.1) (7.8) (1.5) (1.0) (29.2) (49.8) (1.6) (42.2) ( .10.5 )
Ephemeridae 102 0 548 1,221 0 4,032 4,004 0 668 899 0 983 (5.0) (0) (9.6) (38.8) (9) (57.5) (81.3) to) (18.9) (27.8) (0) (24.6) , others 48 302 780 13 39 70 33G 109 817 441 125 988 (2.3) (17.8) (13.') (0.4) (3.2) (1.0) (6.8) (13.11 (23.1) (13.6) (6.7) (24.7) Total 2,054 1,705 5,690 3,149 1,223 7,011 4,923 835 3,534 3,239 1,875 3,996 Corbicula 15,010 3s3 1,650 692 795 1,549 1,770 790 1,431 2,353 1,192 4,007
l Table 5-3 Macroinvertebrate taxa, percent frequency among samples (% Fr), ! and percent composition (% Co) of total macroinvertebrates ! observed in samples from the Preoperational Study (POS), the Unit 1 Operational Study (U15), and the Two-Unit Operations 1 l Study (U25). POS U1S U25
% FT% Co V Fi~~% Co % FTT Co Phylum Nemertina Class Enopla Order Hoplonemertina Family Tetrastemmatidae Prostoma spp. 16.7 0.1 8.3 0.1 0 0 Phylum Porifera Class Demospongiae Order Haplosclerida Family Spongillidae 41.7 P 25.0 P 33.3 P Phylum Bryozoa Class Phylactolaemata Order Plumatellina Family Lophopodidae Pectinatella magnifica 100.0 P 100.0 P 100.0 P Phylum Nematoda 66.7 3. 8 100.0 16.4 66.7 1.5 Phylum Platyhelminthes Class Turbe11 aria 0 0 8.3 <0.1 8.3 <0.1 Unidentified 0 0 8.3 <0.1 0 0 Phylum Annelida Class Hirudinea 0 0 3.3 <0 1 8.3 <0.1 Class 011gochaeta 83.3 20.1 91.7 8.5 100.0 21.3 Phylum Arthropoda Class Acari 0 0 8.3 <0.1 0 0 Class Insecta Order Diptera family Ceratopogonidae i Palpomyia (Complex) 83,3 1.4 91.7 6.7 _ 91.7 4.2 Family Chaoboridae Chaoborus punctipennis 100.0 7.0 91.7 13.0 83.3 10.6 Family Chironomidae Chironomini genus B 0 0 0 0 8. 3 < 0.1 1 Tribe Tanytarsini 0 0 0 0 8.3 <0.1 Ablabesmyia annulata 0 0 66.7 1.4 41.7 0. 8 A app. 75.0 3.3 33.3 0.4 50.0 0.4 Ehironomus spp. 83.3 3.0 83.3 3.9 83.3 5.0 Cladopelma spp. 8. 3 < 0.1 8.3 0.2 16.7 0.2 l Cladotanytarsus spp. 50.0 0.8 50.0 0.4 50.0 4.6 Clinotanypus spp. 0 0 8.3 <0.1 8. 3 < 0.1 Coelotanypus tricolor 83.3 3.6 100.0 8.1 83.3 4.8 5-12 A
Table 5-3 page 2 of 3 POS U1S U2S
% FTI Co % FF % Co % FFE Co C. spp. 100.0 22.5 100.0 14.2 100.0 12.1 fricotoaus spp. 8.3 0.1 16.7 0.1 8. 3 <0.1 Cryptociironomus ponderosus 8. 3 <0.1 0 0 0 0 C. spp. 75.0 2.6 33.3 0.8 75.0 2.5 ;
fryptotendipes spp. 0 0 0 0 8. 3 <0.1 Dicrotendipes modestus 8.3 <0.1 0 0 0 0 D. neomodestus 0 0 0 0 50.0 3.3 - D. nervosus 0 0 0 0 41.7 0.5 D. spp. 75.0 6.5 58.0 0.8 50.0 0. 7 ; Indochironomus spp. 8. 3 <0.1 0 0 0 0 l JG1 ototendipes spp. 50.0 2.0 66.7 2.4 50.0 0.6 Harnischia spp. 8. 3 <0.1 0 0 0 0 i Microchironomus spp. 41.7 0.2 33.3 1. 0 33.3 0.8 ! Nanocladius spp. 8. 3 <0.1 0 0 0 0 i Nilothauma spp. 8.3 0.1 8. 3 <0.1 0 3 : Farakiefferiella spp. 8.3 <0.1 0 0 0 0 (l Phaenospectra spp. 0 0 0 0 8.3 0.4 Polypedilum spp. 41.7 2.0 16.7 0.3 41.7 0.6 Procladius spp. 41.7 0.8 91.7 3.4 75.0 1.1 l
, Pseudochironomus spp. 50.0 1.8 16.7 0.2 33.3 0.9 ;
Stentochironomus spp. 8.3 0.2 0 0 0 0 i Stictichironomus spp. 25.0 0. 3 0 0 0 0 i Tanytarsus neoflavellus 0 0 0 0 25.0 0.2 > i T. spp. 83.3 1. 3 91.7 5.9 75.0 2.7 Tribelos spp. 0 0 0 0 8.3 0.1 Xenochironomus xenolabis 8. 3 < 0.1 0 0 ~ 0 0
! X, spp. 25.0 0.2 0 0 0 0 i
Unidentified 0 0 25.0 0.2 16.7 0.4 , i Family Simuliidae l ] Simulium spo. 0 0 0 0 8. 3 <0.1 - i Order Ephemeroptera 4 Family Caenidae Caenis spp. 41.7 0.4 8. 3 <0.1 50.0 0.4 : Family Ephemeridae
Hexacenia spp. 91.7 5.1 56.7 3.4 66.7 2.4 l
Order PegaToptera Family Sialidae
Sialis spp. 25.0 1.3 41.7 1.0 58.3 1.0 ~
Order Neuroptera Family Sisyridae climacia areolaris 8.3 <0.1 0 0 0 0 Order Ooonata Family Coenagrionidae 8.3 0.1 0 0 8. 3 <0.1 _Ar2_la spp. 8.3 0.1 0 0 0 0 Order Trichopter.s Family Hydroptilidae d Orthotrichia spp. 8.3 0.1 16.7 0.2 16.7 0.1 .! Family Leptoceridae Decetis spp. 41.7 0.4 41.7 0.3 8.3 <0.1 s Family Polycentopidae Cyrene11us fraternuj 66.7 0.8 25.0 0. 2 50.0 0.5 ! 5-13 i
' Table 5-3 page 3 of 3 POS . U15 U25 Taxon % FFI Co % FF T Co % FFT Co C. spp. 0 0 0 0 8. 3 < 0.1 Phylum Mollusca Class Bivalvia Order Heterodontida Family Corbiculidae Corbicula spp. 100.0 7. 3 100.0 5.0 100.0 11.2 Family Sphaeriidae 0 0 33.3 5.0 25.0 0.2 Family Unionidae Anodonta imbecillis 8. 3 < 0.1 0 0 0 0 Class Gastropoda 0 0 0 0 8. 3 <0.1 P = presence noted in sample but not quantified e 5-14
1 i
. l Table 5-4 Percent composition of total density and biomass for major macroinvertebrate taxa from samples col.lected during the Preoperational Study (POS), the Unit 1 Operational Study (U1S),
and the Two-Unit Operational Study (U25). Oensity Biomass Taxon POS U15 U25 POS U15 U25 ; ' { Family Chironomidao 51.7 44.0 43.7 0.2 0.3 <0.1 ! Family Chaoboridae 7.0 13.0 12.6 <0.1 <0.1 <0.1 l
Class 011gochaeta 20.1 8.4 21.3 <0.1 <0.1 < 0.1 I
Family Ephemeridae 5.1 3.4 2. 4 0.3 0.3 <0.1 t Family Corbiculidae 7. 3 5.0 11.2 99.2 99.2 99.9 l
Others 8.8 26.1 8.8 0.2 0.1 <0.1 l 8 ,
i ! 1 : ), , 1 ) i i r i i 5-15
I LOCATION =210.0 12000-9000-1,6000-
.t k 3000-i i' ' t >> > it, ,
i i . . , i . . . g . . . g . . . g . . . g . . . j 01APR83 OiAPR84 OiAPR85 01APR86 01APR87 OiAPR88 LOCATION =210.0 30000- - 25000-20000-
}W 15000-l 10000-lii 5000- ' ' }
i - - t , r 0-i i , ...i.. 3 i OtAPR83 OiAPR84 OiAPR85 01APR86 01APR87 OiAPR88 Prtgeraticrul thit 1 optratim Teit cptva. t . DATE ! Figure 5-1 Means and standard deviations (three replicates) of macro- i invertchrate density and biomass values (blotted wet wt ) { for quarterly sampling periods (May. August, November. Feb-ruary) from May 1983 to November 1987. Note: biomass does not include Corbicula, j 5-16 f ___,-,,_.,,n- -n., , _ .
~
LOCATION =215.0 12000-9000 l W l 2 i
,6000-11 3000-I}} }} },;;}}I i 0-i 4 OiAPR83 OiAPR84 01APR85 01APR86 DiAPR87 OiAPR88 i f
6 P LOCATION =215.0 30000-25000- , 20000-9 s J15000-N 10000- i I ! E 5000- , 0- '6 }
+ i f
3
. . . i . . . . . . .
3
. . . 3 . . . i j OiAPR83 01AP384 01APRB5 01APR86 01APR87 OiAPR88 Preoperaticul thit 1 operatim Teit coera. '
DATE j Figure 5-2 Means and standard deviations (three replicates) of macro- i invertebrate density and biomass values (blotted wet wt.) l for quarterly s3mpling pariods (May, August, November Feb- l ruary) fion May 1983 to November 1987. Note: biomass does
~
not include Corbicula. l l 5-17
.,.._...-.--._~-,.____--.-,.._,____,,__~-_,_'._,_.,_ ~ _ _ . _ . _ . . . -_
i w LOCATION =220.0 i 12000 9000 W 2
,6000- .U 3000 i
i i
. . . ii +
0-t g . . . j . . . g . . . g . . . g . . . g 01APR83 OiAPR84 01APR85 01APR86 OiAPR87 01APR88 l l e LOCATION =220.0 I i 30000-1 25000-20000 - J15000- ! 10000 ! l 55*0-i i i . ii l 0- f -
. . . . . . L . . . . . . i . . .
i i i < 01APR83 01APR84 01APR85 OiAPRB6 01APR87 OiAPR88 [ l Preoperaticn31 Unit 1 creratim T e-Unit opera. DATE I Figure 5-3 Means and standard deviations (three replicates) of macro-invertebrate density and biomass values (blotted wet wt.) l for quarterly sampling periods (May, August, November, Feb-
~
ruary) from May 1983 to November 1987. Note

biocqss does [
include Corbicula. ! i 5-18 : 4 !
i
@ Coelotony. pus Ill' Chicanomus E Cryptochironomus E Decrotendep_es O Ablabesmyio @ Other Chironomidae P12 12 P 2 Pl2 P 12 P I 2 P 12 P I 2 Pt2 P2 PI2 P12 0 - ] E / .- -*
KR y . e 40 .: _.5
,/d .- :- ;. .. ~ ._/ ] S irl :
o - g - 5 * ~ d '.- o 7 . : :- e. ;*. - me a 1 .- i
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g ,:. ._:: :::::
-: :: :e
i: g

:::.:: : ::t
, : :: i:
2200 215.0 220.0 210.0 2150 220.0 210 0 215 0 2200
?100 2150 2200 AUG_. NOV FEB MAY SAMPLING DATES Figure 5-4 Major chironomid taxa identified during the Preoperational Sttniy (P) and their percent composition of chironomid densities during that study compared to the Unit 1 Operational Study (1), and the Two-Unit Operational Study (2).
_ . _ _ _ _ _ . _ . - _ . __ -_ ._ - - _ . . . _ __ . .m-. _ _ _ _ . . . _ . _ ._. . .- l - .
) ',
i i 3000-E ! y,2000-1 un } E O
o o 4
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.5 o o 0
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DiAPR83 OiAPR84 01APR85 01APR06 01AMB7 01APR88 Prmperatimal thit 1 operatim TMit gera.
l DATE
LOCATION
w 210.0 o o a 215.0 o o o 220.0 l Figure 5-5 Plean Corbicula biomass values (three replicates, blotted wet wt.)
for quarterly sampling periods (flay, August, November, February) from riay 1983 to Flovember 1987. Note: Corbicula biomass in Feb-ruary 1987 was 15,010 g/m2 . 4 1 J
. , .. _ . . _ _ _ _ - _ _ , ~ _ _ _ _ _ _ _ _ . _ _ . . . . _ _ _ . . . _ . _ _ _ _ _ ,
CHAPTER 6: FISH INTRODUCTION Lake Wylie is classified as a warm-water fishery, and supports substantial sport fisheries for catfish ("ctalurus spp.), sunfish (Lepomis spp.), largemouth bass (Micropterus salmoides), and crappie (Pomoxis spp.) (Harrell 1986; McInerny and Baker 1987). Previous sampling at Lake Wylie indicated that > the fish community is comprised primarily of clupeids, ictalurids, and centrarchids (Industrial Biotest Laboratories, Inc. 1974; Duke Power Company 1985, 1986, 1987). Operation of steam-electric ststions has resulted in elevated water temperature, movement of water, and thermal destratification in cooling reservoirs (Olmsted and Clugston 1986; Oliver and Hudson 1987). These operat %nal effects have caused alterations in spawning (Miller and DeMont 1974), growth (Siler 1981; Smithson et al. 1986), and fish distribution ; (Smithson et al. 1956; Siler et al. 1986). The incorporation of cooling towers at Catawba Nuclear Station (CNS) should have resulted in minimal elevation of water temperature and water movement (Chapter 2, this report); consequently, these operational effects on fish populations of Lake Wylie were expected to L;e minimal. Sodium hypochlorite, a biocide applied in the cooling towers of each unit every other day for approximately one hour, prevents biofouling. During nor:nal operating conditions, total residual chlorine concentrations discharged into take Wylie are icss than detectable (0.02 mg/1), below the 2-hr LC1's 6-1 l 1
I (concentration that is lethal to 1% of the test animals) for emerald shiner (Notropis atherinoides) and channel catfish (Ictalurus punctatus) (LC1's = 0.10 and 0.14 mg/1, respectively) (Brooks and Bartos 1984). An ar:cidental spill of sodium hypochlorite occurred in October 1984, before either unit of CNS was operating, and resulted in a fish kill in the discharge area of the station.
"hree creel surveys and a study characterizin0 the largemouth bass population at Lake Wylie have been conducted before and during operation of Unit 1 of CNS. The creel surveys t.emonstrated that anglers utilized the discharge area of CNS and that the operation of CNS had little overall effect on pressure, catch rates, or harvest of sport fishes (McInerny and Baker 1987).
Growth of largemouth bass was not affected by the operation of CNS; however, mortality of largemouth bass in the discharge area of CNS was higher than in other areas of the lake. This mortality was linked to the probable increase in angling pressure in the discharge area after CNS began operation (McInerny 1988). Density, year-class strength, and distribution of largemouth bass were unaffected by the operation of CNS. Fish sampling for the 316(a) Demonstration was conducted before Unit 1 of CNS was operational (1973-1974 and 1983-1984) (Industri61 Biotest Laboratories 1974; Duke Power Company 1985), during operation of CNS Unit 1 (1985-1986) (Duke Power Company 1987), and during operation of both units of CNS. The objectives of this report are to:
' 1, Summarize data on species richness and relative abundance of fishes at selected locations of Lake Wylie during operation of Units 1 and ?
6-2
l l t
~
of Catawba Nuclear Station, and relate these data to operation of these units. y
2. Summarize growth data of bluegill (Lepomis macrochirus) and black :
crappie (Pomoxis nigromaculatus) during operation of Units 1 and 2 of { Catawba Nuclear Station, and relate these data to operation of these ( units. I f
! METHODS AND MATERIALS o
- Sample Collection Electrofishing, experimental gill nets, r^tenone, and trap nets were used for ! sampling fish during this study. Electrofishing (840 V pulsed DC; 3-5 amps)
samples were collected in January, April, July, and October 1987. One I kilometer of shoreline at Locations 210, 215, and 220 (Figure 1-2) was l electrofished during each sampling period.
, All captured fish were identified
i l to species, counted, and released. !
Two experimental gill nets (27 m x 1.5 m) with alternating mesh sizes of 2.5, 3.8, and 8.1 cm8 bar mesh were set overnight and perpendicular to shore at , e l Locatiens 210, 215 and 220 on the same dates as electrofishing samples. Nets were retrieved the next day and taken to the laboratory where the fish were removed from the nets, identified to species, and counted. l fish in a selected cove at Locations 215, 225, and 235 (Figure 1-2) were collected after rotenone application during August 1987. At approximately 0900 hr, the mouth of each cove was blocked with a 0.64-cm 2 mesh block net. I Rotenone was applied at a concentration of si ppm within the cove. Dead and 3 moribund fish were collected during the first two days after rotenone l application, identified to species, and counted. Total weight (g) of each fish l 6-3
i sp;cies collected was measured on the first day of collection. Total weight of each species collected during the second-day was the product of the weight per
fish ratio during the first day and the total number of fish of that species 4 t I collected during the second day. i a
Ten to thirty trap nets (0.9 x 1.8 m, with 1.9- or 2.5-cm2 bar mesh and , c 8 i with a single 15.2-m lead) were set overnight and perpendicular to shore in , Zonas 1, 4, and 5 (Figure 6-1) during November, 1984 through 1987. Five to a . fifteen trap nets were set at Zone 5 in January, April, and August, 1986 and ' i 1987. Captured white crappie (pomoxis annularis) and black crappie from each i n3t were measured (total length in mm) and released; all other fishes were l 4 . 1 released. Scales for age and growth analyses were removed from bluegill (Lepomis l 93crochirus) collected during the fir t day of cove sampling at Locations 215, i 225, and 235 (August 1979 through 1987) and from black crappie captured in trap i nsts set in November. From 1979 through 1983, approximately 100 bluegill were ; 1 i kept for age / growth analysis, These fish were selected in proportion to their l longth-frequency distribution, but a minimum of 10 fish from each 2-cm size ' i i group were selected. From 1984 through 1987, 100 bluegill from 2-cm size !
?
classes 4 (60-79 mm TL) through 8 (140-159 mm TL), proportional to the same 1 i size classes in the total bluegill catch, and up to 10 individuals from size ! 1 i l class 3 (40-59 mm TL) and each 2-cm size class 39 (2160 mm) were kept for [ I i ag3/ growth analyses. All bluegill for age / growth analyses were taken to the [ i laboratory where they were measured, weighed (g), and their sex determined. l 3 i l Scales were removed from the first 100 black crappie processed in each zone stapled; however, sex was not determined. In addition, scales were removed f froa all captured black crappie 2300 mm total length. Scale impressions on f acetate strips were mada with a hydraulic press (1983 through 1987). With the ;
i 6-4 ,
i I i l
i i 1 aid of an Eberbache scale projector (80X and 40X for bluegill and black crappie, respectively), annuli were counted by two individuals; all disagreements in annuli counts were discarded. Crossing over patterns or wider spacing patterns between circulf distinguished annuli from circuli. Data Analyses l l Percent composition (% of catch) for each species collected with l electrofishing and for each species collected with gill nets at Locetions 210, , 215, and 220 were calculated for *,ach date sampled. Standing stock (kg/ha), density (number /ha), and % composition in standing stock and density for each ; species collected in coves (Locations 215, 225, and 235) sampled with rotenone i , l were calculated. A surface area / lake level model to calculate the surface area l 1 of the coves sampled was used. Mean catch rates (number of fisn M t set) of white crappie and black crappie were calculated for each zone and year sampled with trap nets. Catch rates by year-class were also determined for black [ crappie from each zone. Catch rates by year class of black crappie in each , B zone were derived from the toal number of black crappie of that year class [
\
divided by the number of nets set in that zone. Length-frequency distributions coupled with an age-length key for that zone were used to obtain the number raf i l black crappie of that year class. Mean lengths (mm) at annulus formation of ! j bluegill and black crappie were calculated with the traditional method i ] (Carlander 1981); standard intercepts of 20 and 35 mm for bluegill and black crappie (Cariander 1982), respectively, were used. Growth was estimated as the difference between the length at timeg and length at time g,3 (Ricker 1975). ) Data analyses were restricted to tables arid graphs. Applicable data before operation of either Unit of CNS, and during operation of CNS Unit 1 (collected 1 4 . l l 4 6-5 i l
by Industrial Biotest Laboratories, Inc., and by Duke Power Company) were compared with data gathered during this study. RESULTS AND DISCUSSION _ Species Richness A total of 49 fish species has been reported at Lake Wylie since sampling b3gan in 1973 (fable 6-1). Industrial Biotest Laboratories Inc reported 39 sp:cies, and 38 species were collected by Duke Power Company before CNS was operational (Table 6-1). Duke Power Company collected 35 and 29 species, respectively, after Unit I was operational and after Units 1 and 2 were op3 rational. Differences in the number of species collected were probably the result of differences in the areas sampled, sampling frequency and duration, and l
=isidentification. Industrial Biotest Laboratories sampled several riverine locations not sampled by Duke Power Company, and sampled monthly rather than quarterly, which could account for their collections of bowfin, bluebead chub, and suckermouth redhorse (Table 6-1). The sampling effort by Duke Power Company before operation of CNS included six years of cove sampling (Baker and McInerny 1985) and one year of electrofishing and gillnetting samples (Duke ; Powar Company 1985). so years of cove, electrofishing, and gill net samples were collected during operation of CNS Unit 1 (Duke Power Company 1986, 1987; Duke Power Company unpublished data), and one year of cove, oloctrofishing, and gill net samples were collected during operation of both units of CNS. Increased sampling effort increases chances of capturing the rardr species. The listings of river carpsucker, black bullhead, rock bass, 6-6
and johnny darter (Table 6-1) were probably results of misidentification. River carpsucker and johnny darter have close relatives fcund at Lake Wylie j (quillback and tesse11ated darters, respectively), but have never been reported elsewhere from the Catawba River drainage (Menhenick 1975; Cloutman ! and Olmsted 1979) One suspected black bullhead (similar taxonomically to ! brown bullhead) was collected in Lake Norman, N.C. (Cloutman and Olmsted 1979), l and rock bass (similar appearance to warmouth) had been stocked in an upper , reservoir of the Catawba River system (Randall 1957). These are the only other [ reports of these species from the Catawba River system (Cloutman and Olmsted 1979). Greenfin shiners were once grouped with satinfin shiners until being listed as separate species by 1970; taxonomists did not regularly use greenfin
+
shiner as the new name for satinfin shiner until the mid-seventies (D. G. Cloutman, Duke Power Company, personal communication). Species Composition and Relative Abundance Electrofishing Thirteen, eighteen, and fourteen fish species at Locations 210, 215, and 220 were captured in electrofishing samples during the two-unit operational study (Table 6-2). Bluegill and redbreast sunfish were usually the most frequently captured species; however, threadfin shad and gizzard shad were occasionally common in these samples, especially in January samples. (Table 6-2). Operation of both units of CNS had no observable effect on electrofishing catches except during winte.' when high catches of threadfin shad occurred at Location 215. Species composition in electrofishing catches during the two-unit operational study was similar to that observed in the previous studies 6-7
t I (Industrial Biotest Laboratories 1974; Duke Power Company 1986, 1987). Bluegill l and redbreast sunfish were usually the more abundant species in electrofishing ' semples at all locations during each month sampled before the two-unit operational , P study. At Location 215 in January, threadfin shad wtre probably attracted to the slightly warmer water temperatures (Chapter 2, this report). Threadfin shad become [ l stressed, become moribund, or die when water temperatures drop below 9'C (Griffith i 1978). Heated discharges of some steam-electric stations provide thermal ( t rofuges for threadfin shad (Siler et al. 1986); howevet, the discharge area of l I Catawba Nuclear Station does not. Cold-temperature winterkills of threadfin [ shad in the discharge area of Catawba Nuclear Station occurred in March, the ! { sane period when threadfin shad kills were observed throughout Lake Wylie. [
?
l Gill Netting i Fourteen, sixteen, and thirteen fish species at Locations 210, 215, and - l 220, respectively, were collected in gill nets during the two-unit operationti l study (Table 6-3). White catfish and gizzard shad were captured more i frequently at each loLation than the other species; black crappie and channel catfish were periodically captured in relatively high numbers (Table 6-3). ! i These data suggest little difference among locations during this period. 6 White catfish and gizzard shad were also the more frequently captured L species in gill nets set before the two-unit operational study (Duke Power j Company 1985, 1986, 1987). Catches in gill nets were usually most diverse at ! l
~
Location 215 compared to Locations 210 and 220. A collective total of 25, 19 and 21 species were captured in gill nets at Locations 215, 210, and 220, f I respectively, before the two-unit operational study (Duke Power Company 1985, 1988, 1987). Changes in the species composition at Locations 210, 215, and 220 ; could not be detected between gill net samples collected before and during the f two-unit operational study. . t 6-8 ( 6 i I
Cove Sampling Sixteen, eighteen, and twenty-three fish species were collected in coves at Locations 215, 225, and 235, respectively, during the two-unit operational study (Table 6-4). Gizzard shad comprised the highest standing stocks at each location; each location also yielded high ssanding stocks of threadfin shad and bluegill (Table 6-4). Threadfin shad accounted for the highest densities at each location, followed by bluegill (Table 6-4). Species composition in coves ; during the two-unit operational stuoy was similar to that observed in the previous cove samples (Baker and McInerny 1985; Duke Power Company 1985, 1987); j however, total standing stock and total number of species collected l were lowest at Location 215 during the two-unit operational study. Standing l stocks of individual specier at Location 215 during the two-unit operatioaal study were within the ranges of those observed during the previous samples f (Baker and McInerny 1985; Duke Power Company 1985, 1987). Total densities and densities of individual species during the two-unit operational study ! (Taole 6-4) were within the ranges observed during previous cove samples (Baker and McInerny 1985; Duke Power Company 1985, 1987). Changes in standing stocks, i densities, and species composition of fishes in coves, could not be attributed . I to the operation of CNS. Trap Netting Black crappie were captured in trap nets in each zone sampled, but catches of white crappie were rare (Table 6-5). Catch rates of black crappie in Zones 1 and 5 (adjacent zones) varied similarly among years, but differed from that observed at Zone 4 (Table 6-5). This variability was related to the relative year class strengths in each zone (Table 6-6). The operation of CNS could be directly or indirectly attracting black crappie into Zone 5; catch rates at 6-9
Zcne 5 were lower than at Zone 1 in 1984 just after start-up of Unit 1, but higher during each year afterward (Table 6-5). Variability of year class strength resulting from the operation of CNS could not be detected; catch rates of the 1986 year class at Zone 5 were within the ranges observed in previous years (Table 6-6). Black crappie were captured in the discharge area of CNS at all times of the year (Table 6-7). Grrwth Bletgill Growth diffetences of both male and female bluegill were observed among locations and years (Figure 6-2); however, these differences were no, related to the operation of CNS. Growth among locations varied similarly among years (Figure 6-2). First- and second year growth of both sexes at Location 215 were usually lower than growth at Locations 225 and 235 each year (Figure 6-2); however, these differences were related to lower water temporature and/or lower nutrient concentrations at Location 215 compared to the other locations (McInerny 1986). Annual variation of bluegill growth was related to annual variation in water temperature (McInerny 1986). Black Crappie Growth of black crappie varied aA0ng zones and years (Figure 6-3), but this variation does not appear related to operation of CNS. First , second , and third year growth in Zone 5 usually reflected growth in Zone 1, which was mostly unaffected by operation of CNS (Chapter 1, this report); growth in both zones differed from growth in Zone 4 (Figure 6-3). First year growth was gindrally higher in 1985 and 1986 than in previous years, and second- and third year growth among years varied considerably (Figure 6-3). Reasons for 6-10
l l this variability at Lake Wylie are unknown at this time, but could be related to population dsnsity (Hanson et al.1983) and/or diet differences (Heidinger et al. 1985). l i ] SIM4ARY I Sampling with electrofishing, gill nets, rotenone, trap nets, and pullh l l nets at various locations was conducted during the operation of both units of I Catawba Nuclear Station. This sampling demonstrated that the fish community of I
Lake Wylie is comprised primarily of shad, catfishes, sunfishes, largemouth l i bass, and crappies. The fish community during the two-unit opetational study ;
t did not appear to be different than the community before both ut its of CNS were i operating. Operation of CNS appears to attract threadfin shad itto the il discharge area during the winter, and may be attracting black crappie in the I fall. Growth of bluegill and black crappie was unrelated to the operation of
CNS.
! l l
l .i l 2 l a ! i l l i 1 I
l 1
l t !
6-11 l
l
i
LITERATURE CITED F
i Baker, B. K.; McInerny, M. C. Catawba rotenone summary (1984). Prod. Environ,. : Serv. Sec. Res. Rept. PES /85-03. Duke Power Company, Huntersville, N.C.; } 1985. 1 Srooks, A. S. ; Bartos, J. M. Effects of free and combined chlorine and exposure duration on rainbow trout, channel catfish, and emerald shiners. . Trans. Aa. Fish Soc. 113:786-793; 1984. - < Cailander, K. D. Caution on the use of the regression method of back-
calculating lengths f.om scale measurements. Fisheries 6(1):2-4; 1981. '
I
Carlander, K. O. Standard intercepts for calculating lengths from scale i j measurements for some centrarchid and percid fishes. Trans. Am. Fish. ;
f Soc, 111:332-336; 1982. t
l l Cloutman, D. G.; Olmsted L. L. The fishes of Mecklenburg County, N.C. l i Charlotte Nature Museum, Inc. Charlotte, N.C.; 1979.
l [ t j Duke Power Company. Catawba Nuclear Station 316(a) Demonstration ; j preoperational report. Duke Power Company, Charlotte, N.C.; 1985. l Duke Power Company. I:.terim monitoring report (March 1986 through November [ 1986). Duke Power Company, Charlotte, N.C.; 1986. [ t : 3 Duke Power Company. Catawba Nuclear Station 316(a) Demonstration Unit 1 4 oper&tional report. Duke Power Company, Charlotte, NC; 1987. . t } Griffith, J. S. Effects of low temperature on the survival and behavior of l 4 threadfin shad, Dorosoma potenense. Trans. Am. Fish. Soc. 107: 63-70; ' ! 1978. 4 l i Hanson, D. A.; Belonger, B. J.; Schoenike, D. L. Evaluation of a mechaaical t j population reduction of black crappie and black bu11 heads in a small [ j Wisconsin Lake. N. Am. J. Fish. Mgmt. 3:41-47; 1983. ; } Harrell, R. D. Comparison of creel and physical / chemical parameters for Lake ( < Norman, North Carolina, and Lake Wylie, North Carolina and South Carottna. l ! Proc. Southeast. Assoc. Fish. Wildl. Ag. 38:532-548; 1986, t , t i .Hsidinger, R. C.; Tetzlaff, 8.; Stoeckel, J. Evidence of two feeding
subpopulations of white crappie (Pomoxis annularia) in Rond Lake, ;
i Illinois, J. Freshwater Ecol. 3:133-144; 1985, t Industrial Biotest Laboratories, Inc. A baseline / predictive environmental [ investigation of Lake Wylie, Catawba Nuclear Station, and Plant Allen, j , Septeuber 1973 - August 1974. Volume II. Industrial Biotest [ ! Laboratories, Inc., Northbrook, Illinois; 1974, r 1 t i r d I i t [ 6-12
1 L- - - _ - - . -- _L
j i McInerny, M. C. Age, growth, and condition of bluegill collected from selected locations in Lake Wylie prior to the operation of Catawba Nuclear Statior. (1979 through 1984). Prod. Env. Serv. Res. Rept. PES /86-03. Duke Power Company, Huntersville, N.C.; 1986. McInerny, M. C. Characteristics of the largemouth bass population in - Wylie. Prod. Env. Serv. Sec. Res. Rept. PES /88-02. Deke Power Cv. .s Huntersville, N.C.; 1988. McInerny, M. C.; Baker, B. K. Variation of selected creel parameters at Lt Wylie from i December 1985 through 30 November 1986, and comparisons witn two previous surveys. Prod. Env. Serv. Sec. Res. Rept. PES /87-10. Duke Power Company, Huntersville, N.C., 1987. Menhenick, E. F. The freshwater fishes of Horth Carolina. Charlotte, N.C.: Press of the University of North Carolina at Charlotte; 1975. Miller R. W.; DeMont, D. J. Fisheries research. Jensen,l. D. ed. Environmental responses to thermal discharges from Marshall Steam Station, Lake Norman, North Carolina. Palo Alto, CA: Electric Power Research Institute; 1974:187-216. l Oliver, J. L.; Clugston, P._L. Thermal and dissolved oxygen characteristics of a South Carolina, cooling reservoir. Water Res. Bull. 23:257-269; 1987. Olmsted, L. L.; Clusiton, J. P. Fishery management in cooling impoundments. l Hall, G. E..r' Van den Avyle, M. J. eds. Reservoir fisheries management: ! strategies for the 80's. Bethesda, Md: Reservoir Committee, Southern l Division American Fisheries Society; 1986:227-237. Randal)', J. The distribution of fiches of the Catawba-Wateree River drainage. P4d Dissertation. University of South Carolina, Columbia, S.C.; 1957. l Ricker, W. E. Co:r.putation and in .rpretation of biological statistics of fish populations. Bulletin 191, Ottawa: Bulletin of Fisheries Research Board of Canada; 1975. Siler, J. R. Growth of largemouth bass, bluegill, and yellow perch in Lake No r..ia n , North Carolina - a summary of 1975 through 1979 collectione. Prod. Env. Serv. Sec. Res. Rept. PES /81-26. Duke Power Company, Hunte"sville, N.C.; 1981. Siler, J. R. ; Foris, W. J. ; McInerny, M C. Spatial heterogeneity in fish parameters within a reservoir. Hall, G. E. ; Van den Avyle, M. J. eds. Reservoir fisheries managament: Strategies for the 80's. Bethesda, Md: Reservoir Committee, Southern Division American Fisheries Society; 1986:122-136. Smithson, J. A. ; Kurzawski, K. F. ; Clevenger, T. V. Management of largcmoLth a bass in a perc rd cooling pond in Illinois. Hall, G. E.; Van den Avyle, M. J. eds. Reservoir fisheries management: strategies for the 80's. B7thesda, Md: Rese rvoir Committee, Southern Division American Fisheries Society; 1986:255-260. 6-13
TABLE 6-1. C:mnion and scientific nemes of fishes collected at Lake Wylie by Industrial Biotest Laboratories (IBL), by Duke Power Company before operation of Catawba Nuclear Station (OPCP)s by Duke Power Company after Unit 1 of Catawba Nuclear Station was operational (DPC CNS 1)s and by Duke Power after Units 1 and 2 i of Catawba Nuclear Station were operational (DPC CNS 1 and 2) ' ('X' denotes collected). Feelly ope CPC CNS Ssx 4s Common home !)L DPCP CNS 1 lu Leptsesta;dee a gars Lepisesteve essevs (Linneous) longnose gar I I X X Aelidae - bowfins
; As_!j Calva Linteevs bowfin I Clypeidee herrings Dorcsoma Cepedf anum (tesweve) gtXXard shed X X X X Qerose~a petenense (Guniher) threadfin shed X X I I Cyprinidae - carps and elanows
{arassiusavratvs(Linnaew) goldfish 7 yprinus carpto Linnaeus (comon Carp I I I I P d ogaathus crefus Girard eastern stivery minnow I I
1 hocoe's leptocepnetus (Girard) bluehead chub I hoteeinoave grysoleucas (Mitchill) golden shiner I X X X hotropia ansiostaavs (Girard) sattnfin shiner I hatrepis calreiste su (Jordan and Brayton) greenfin shiner X I I hotroots hudsonlus (Clinton) spottatt shfaer X X X hotroplj nivevs (Cope) whitefin shiner I I I hotropis procne (Cope) swallowtail shiner X X X X Pteephales proselas Rafinesqve fathead stanow I X Catostoe6dae suckers Carriodes 11r219 (taffeesque) river corpsucker X Carstodos cyprinus (Lesueur) quillback I X X 4 fatosto jev commersoni (tecepede) white sucker I X 1 I
risytgn oblomous (Mitchif f) Creek Chubsucker X X X E
)
ctiobus bucalus (Rafines M 1 smallmouth bwff410 X X X
, ctiotivs Cypef nellus (Valenslennea) bigeowth buffalo X X mo iostoma a u sveva (Refinesove) silver redhers. I Monestoma sacroleptoetum (Lesueur) shorthead redhorse X X X Monostoor perpillvse ((ope) sucker outh rednerse X Moscstoma roovstum (Cope) smallfin redhorsa I X X X Monosto*a evetscartes Jorden and Jenkins striped jumproct X Ictalwrtdae - bullneed catfishes ctaturus bevanews (Jordan) snail bulleead X X X Ctalvevs g (Linnesus) white catfish X X X t ctalwevs melas (Rafinesque) black bullhead I ctalvevs egeb I g (Lesueve) brown bullhead X X X ctalurus pictytephalvi (Girard) flat bullkead I X X X ctalwevs punctatus (Refinesque) Channel Catfish X I X X Po#Cl llidae
livebearers e Gambusta af finis (Saf rd and Gerard) cosovitatish I X X X percientayid.e te ,frate basses Moroae mne (ta fine sque) white bass X X X a
, moroa, sasatills (walbew) striped tass I i Centrarchidae - sunfishes A4blopittes PVDestrf s (Iafinesque) PoCh bass I
,epoets auritys (Linnaevs) redbreast sunfish I I 1 X ,epeait gibbosus (Linnaeus) pumpkinsved I E I R ,,9poeIs gvlosus (Cuvier) mareouth I X X X g jj iaCrachiry Rafinesque bluegill I I E I 30 J *1creloenus (Gunther) r* dear s Mffsh I X E I M croptervs galeoloes (Lacepede) largeoovth bass 1 I I I Pomount saaviaris Cafinesque white Crapple I I I X Poeou t s $romaculatus (Lesueur) Black tsrapple I I I I Pertidae
pertnes
theostoma fvstfo me (Girard) swamo darter X X
'heos t oea deum R a fine s que Johnny derrer I Lineestoes ,i.stedt Ster 3r tessetieted darter I r I Wer 3 iT6esteas (mitchif t) setto perch a X
n, Peccina cresse (Jorden and trayton) Pleosont darter e
h 6-14
Table 6-2 Percent composition of fistees (%) in electrof f shing samples in January, April, July, and 3 October at Locations 210, 215, and 220 of Lake Wylie during two-unit operational study. l i locations I 210 215 220 Species Jan Apr Jul Oct Jan. Apr Jul Oct Jan Apr Jul uct
; Longnose gar 0 0 0 0 0 0 0 0 0 0 1 0 i Gizzard shad 52 4 8 5 3 2 6 1 0 6 8 2 Threadfin shad 0 0 0 54 50 0 0 8 0 0 0 40 Common c.srp 0 0 0 0 0 <1 0 0 12 <1 0 0
] i Golden shiner 0 0 0 0 0 1 1 0 0 0 0 0 , Greenfin shiner 4 0 0 0 0 <1 0 0 0 0 0 'O Whitefin shiner O <1 0 0 0 2 0 0 0 0 0 0 ) 0 0 0 a Swallowtail shiner 0 <1 0 0 0 0 0 0 0 Moxostoma spp. 0 0 0 0 <1 0 0 0 0 0 0 0
? 2 0 0 12 14 3
? g White catfish 4 C 8 0 1 2 . Channel catfish 0 0 4 0 0 0 0 0 0 <1 0 0 Mosquitoffsh 0 0 0 0 <1 0 1 0 0 0 0 0 Redbreast sunfish 4 14 27 6 5 19 13 17 0 15 7 6 ]
Pumpkinseed 0 17 15 0 4! 6 5 7 19 4 6 1

Warmouth 0 0 0 0 <1 1 0- 0 0 <1 0 1 Bluegill 16 61 38 29 32 60 68 58 38 47 59 34 Redear sunfish 0 0 0 0 1 0 1 1 12 <1 0 0 Sunfish hybrid 0 <1 0 0 0 0 0 0 0 0 0 0 i
} Largemouth bass r 4 0 3 2 4 1 9 19 10 4 13 Black crappie 0 0 0 0 <1 0 ') 0 3 0 0 } 0 0 j Tesse11ated darter u 0 0 3 0 1 0 0 0 0 i Yellow perch 4 0 0 0 1 <1 0 0 0 2 0 0 Total number in sample 25 229 26 63 363 403 91 120 16 269 71 159 J I i ?
Table 6-3. Percatnt corgAtion (%) of fishes in gil t net samples in Jrnuary. April, July, and October at Locations 210, 215 and 220 of Lake Wylie during the two-unit operational period. Locatic.ns 210 215 220 Species Jan Apr Jul Oct Jan Apr Jul Oct Jan Apr Jul Oct Longnose gar 0 0 0 0 0 0 0 20 0 0 0 0 Gizzard shad 11 43 21 14 3 2 25 24 14 4 55 29 Qui 11back 0 0 5 0 0 2 0 8 0 0 5 12 Creek chubsucker 7 0 0 0 0 0 0 0 0 0 0 0 Smallfin redhorse 0 0 0 0 0 2 5 0 0 0 0 0 Snail bullhead 0 3 0 0 0 0 0 4 0 4 0 0 White catfish 29 16 16 0 52 44 20 4 7 39 7 17 ? Flat bullhead 0 3 0 0 2 2 0 0 7 0 9 0 g Channel catfish 0 5 21 0 0 15 20 8 0 22 11 17 Redbreast sunfish 0 0 0 0 0 0 5 0- 0 0 0 0 P mpkinseed 0 0 5 0 .3 0 5 0 7 0 a 4 Warmouth 0 0 10 0 0 2 5 0 0 0 0 0 ' Biuegill 11 11 10 0 5 17 0 4 14 0 i 0 Redear sunfish 4 3 10 0 0 0 0 16 7 0 2 0 Sunfish hybrid 0 0 0 0 0 0 5 0 0 0 2 0 Largemouth bass 21 5 0 43 13 7 0 4 29 0 0 12 Black crappie 14 14 0 43 25 2 10 8 14 26 0 8 Yellow perch 4 0 0 0 0 2 0 0 0 4 2 0 Yott.1 number in sample 28 37 19 7 63 41 20 25 14 23 44 24
-m I
1 ] l - I Table 6-4 Standing stock (kg/ha), density (number /ha) and percent (%) of catch, of fishes in coves at Locations 215,
225, and 235 of Lake Wylie in August during the two-unit operational period.
i
Locations 1
215 225 235 i Species kg/ha @ no/ha % kq/ha % no/ha % kg/ha % no/ha % j Gizzard shed 179 (53) 5.252 (14) 160 (36) 2,202 (3) 122 (24) 6,380 (5) , Threadfin shad 28 (8) 17.341 (46) 109 (24) 71,808 (e') 87 (17) 93,138 (80) l Common carp 0 (0) 0 (0) 0 (0) 0 (0) 5 (1) 6 (<1) l Golden shiner 0 (0) 0 (0) 0 (0) 0 (0) _ (<1) 32 (<1)
Greenfin shiner <1 (<1) 2 (<1) <1 (<1) 1 (<1) <1 {<!) 83 (<1) 4 Whitefin shiner 0 (0) 0 (0) 0 (0) 0 (0) <1 (<1) 2 (<1)
(0) Swallowtale shiner 0 0 (0) <1 (<1) 23 (<1) <1 (<1) 1 (<1) Quillback 0 (0) 0 (0) 2 (<1) 3 (<1) 6 (1) 10 (<1) Smallmouth buffalo O (0) 0 (0) 20 (4) 4 (<1) 8 (2) 1 (< 1) 1 White catfish 18 (5) 156 (<1) 24 (5) 149 (<1) 19 (4) 224 (<1) o Channel catfish 15 (4) 15 (<1) 29 (6) 52 (<1) 121 (24) 2,642 (2) i Mosq95toffsb <1 (<1) 152 (<1) <1 (< 1) 73 (<1) <1 (<1) 36 (<1)
! N White bass 1 (<1) 36 (<1) <1 (<1) 1 (<1) 57 (11) 1,344 (1) 'I Redbreast sunfish 9 (3) 382 (1) 2 (<1 97 (<1) 2 (<1) 85 (<1)
Pumpatinseed 6 (2) 554 (1) 4 (1) 321 (<1) 7 (1) 932 (1) Warmouth 3 (1) 254 (1) 2 (<1) 104 (<1) 1 (<1) 25 (<1) ? Bluegill 60 (17) 11,228 (30) 61 (14) 9,578 (11) 58 (11) 11.017 (9) j' Redear sunfish 1 (<1) 7 (<1) 5 (1) 56 (< 1) 1 (<1) 6 (<1) Sunfish hybrid <1 (<1) 3 (<1) 0 (0) 0 (0) 0 (0) 0 (0) Largemouth bass 11 (3) 328 (la 22 (5) 265 (<1) 16 (3) 434 (<1) i Black crapple 1 (<1) 39 (<1) 0 (0) 0 (0) <1 s<1) 3 (<1) Tessellated darter <1 (<1) 202 (1) <1 (<1) 66 (<1) <1 (<1) 26 (<1) Yellow perch 8 (2) 1,497 (4) 2 (<1) 275 (<.) 3 (1) 331 (<1) i Piedmont darter 0 (0) 0 (0) 0 (0) 0 (0) <1 (<1) 1 (<1) ] Totals 341 (100) 37,397 (100) 443 (100) 85,079 (100) 515 (100) 116. '6 e i l i
. - . - n _ --r ..- , , -,, .-- -- , - - . -
Tcbie 6-5. Mean catch rates (number / net set) with 95% confidence limits (black crappie only) of black crappie and white crappie in trap nets set in Zones 1, 4, and 5 of Lake Wylie during November, 1984 through 1987. Black Crappie Year Zone 1984 1985 1986 1987 1 17.7 1 12.2 7.5 i 5.0 13.4 2 7.9 10.3 i 3.8 4 11.7 i 7.4 21.0 i 16.3 10.4 1 3.8 15.0 1 7.0 5 10.7 1 3.8 19.8 i 9.7 29.5 1 9.7 15.0 i 8.7 White Crappie Year Zone 1994 1985 1986 1987 1 0.1 0 0 0 4 0.1 0.2 0.1 0.3 5 0 0 0 0.1
)
6-18
u Table 6-6. Mean catch rates (number / net set) of all year classes of bisek crappie captured in trap nets set in Zones 1, 4, and 5 of Lake Wylie during November 1984, 1985, 1986, and 1987. Zone 1 Sample Year Year Class 1984 1985 1986 1987 1980 0.00 0.00 0.00 0.00 1981 0.60 0.03. 0.00 0.00 1982 9.20 0.53 0.00 0.04
, 1983 7.80 0.33 0.30 0.00 1984 0.10 6.60 3.80 0.33 1985 -
0.00 9.35 4.67 1986 - - 0.00 5.29 1987 - - - 0.00 Z,one 4
Sample Year
,, Yeir Class 1984 1985 1986 1987 i 1980 0.00 0.00 0.00 0.00 1981 0.50 0.21 0.04 0.00 1982 4.80 0.79 0.04 0.00 1983 6.30 0.79 0.04 0.00 1984 0.10 18.92 0.76 0.39 1985 - 0.29 9.36 2.78 1986 - - 0.12 11.83 1987 - - - 0.00 l i I Zone 5 Sample Year Year Class 1984 1985 1985 1987 1980 '0.07 0.00 0.00 0.00 1981 0.57 0.08 0.00 0.00 1982 6.42 0.38 0.00 0.06 i 1983 3.64 0.38 0.07 0.06 1984 0.00 19.00 4.73 0.47
; 1985 -
0.00 24.66 9.27 1986 - - 0.00 5.13 1987 - - - 0.06 1 6-19 4 _ , , - . -- --g-- . , - --- _ , , ,m , ,,._,,-,,m . , , , . y-,,- -7, ,, , , ,w ,,-g - - ~ +pgyng - - - --em ~ ,
Table 6-7. Mean catch rates (number / net set) of black crappie et Zone 5 of Lake Wylie in January, April, August, and November 1986 and 1987. Year Jan Apr M Nov 1986 35.2 13.1 2.8 29.5 1987 7.2 12.2 19.6 15.0 6-20
NOU5n n urAusr oncuanos -
~ __ , \ r L,
LAKE WYUE ZONE 3 l
,9 ZONE q _ ,, l 4 ZONE 2 ,
oYa/Nb" ZONE 0 i
, ZONE l 1 j Vf i
YAY
. Figure 6-1. Sampling zones at Lake Wylie used during the tr w net sampling of black crappie in November, 1984 through 1987.
6-21
FEMALES MALES 43 g, .
/\ . ;', 'Oc s' - *\.s '~~
J - ,_ ,j,' #2, ,-, g .,
~-, 1% 7 ,
v s ,s t 20 20 Therd.yest Stewth T hee 4 -y een Greeth TS [F is 59 SC is 82 05 84 95 8'S [6 [F [8 [9 IO St d2 Sa 84 0'S O'S
] 40- , /%., E 40-E - ~~>^W- % -~ / E s^'"~-~- -~ / 3~_
O 20, O 20 - Sected-year Greeth
$ S, coed. year Growth J .,,J 4
3 4 3 FS [F [3 [9 90 et d2 8'3 84 8'S d6 is fy fe fg 40 e's s', s's f4 3'S is m Z SO- Z 40-t 4 4 N w N y o=~~~ w p P s, , *%, o' ~ E
r %, ,%* #
#~'h s' s x ~. s,_,,..'~af-m '~--
7 N.-
- [f' ~> -,a' , y_ K / % N, First year Growth E I' F O'**'"
20 - 20
- LOCA TIO4 ZIS - LOCATIOes 215 -- LOCA TION 225 -.. LOCATIOes 225 -- LOCATIC M 2 35 - LOCATIOct 23S o .
O rs rr re 7, eO si sa es e4 es es i. it i, i, go g, g, g3 g. g3 g. GROWTH YEAR GROWTH YEAR Figure 6-2 flean annual growth of male and female blueg'ill at Locations 215, 225, and 235 of Lake Wylie, during the first, second, and third year of life in 1976 through 1986.
12 0 -
,' \ .A \
80 - / \\
~
THIRD-YE AR 40 81 8'2 8'3 84 85 8'6 n E E 160-I - r .~. > < ;% s . N . s
& \
3 120 -
,g/ 'g O $
g -
'N.N.s// f \
C \ 80 - ~ Nf f J 4 . D SECOND-YEAR Z 40 . . . Z 81 82 83 84 85 86
<f Z
4.7 3.7 5.9 4.3 4.3 4.5 4.3 5.1 0.3 5. i 7.0 4.2 4.3 3.7 3.2 3.7 4.0 4.4 4.6 4.4 5.4 5.0 5.8 6.6 4.5 4.5 3.7 3.9 4.8 5.2 4.7 4.4 5.5 Bottom 5.8 7.1 1. 7 4.7 4.1 LOCATION 220.0 3.8 3.7 3.5 2. 6 3.4 3.6 3.8 3.9 4.0 4.7 0.3 4.2 5.2 3.3 2.7 3.3 3.5 3.8 3.9 3.9 4.8 5.0 4.1 4. 8 3.8 3.6 3.5 4.1 3.6 3." 3.8 4.1 4.2 3.9 3.9 4.9 ) 10.0 4.2 4.6 3.8 3.7 4.0 5.1 4.1 3.9 3.9 5.1 Bottom 4.2 4.8 3.8 4.0
APPEf9IX 2-12 t.hltride data for the i n-Unit Oper tional Period (Dec. 1986 - Nov. 1987) et Locctions 210.0. 215.0, and 220.0. CI:LORIDE (eg.1-3) DEPTH (NETERS) JK4 FE8 MAR APR MAY JUN JUL AUG SEP OCT NOV DEC LOCATION 210.0 0.3 8.8 6.6 11 8.2 11 11 12 16 16 18 15 5.0 8.8 6.7 9.4 8.1 10 11 12 16 16 19 15 10 0 9 .1 6.5 9.0 8.1 10 11 12 19 16 19 15 80ttom 's . S 6.7 9.4 8.1 10 12 12 20 15 19 15 ~$ LOCATION 215.0 0.3 12 7. 2 8.6 9.8 12 13 14 16 17 18 18 5.0 12 6.8 7.3 84 10 14 12 16 17 18 18 Botton 12 6.8 7.1 8.1 9.6 13 13 14 17 18 17 LOCATION 220.0 0.3 10.0 7. 7 9.1 8.1 12 10 13 18 16 20 15 5.0 9.1 7. 0 9.1 8.2 11 10 13 18 16 21 15 10.0 9.2 7. 0 9.1 8.1 10 10 12 20 16 19 15 Bottoe 8.9 7.3 9.1 9.4 10 10 12 19 16 19 15
APPENDIX 2-13 Trace element data for the Two-Unit Operational Period (Dec 1986 - N0v 1987) at Lo:ations 210.0, 215.0, and 220.0. ) I LOCAf!0n 218.0 LOCAf!0n 210.0 LOCAt!04 210.0 F(3 4A7 AC 40y F($ M47 AuG N0y Fil M4T AVO Nov Daama(f(p
- a
1. 2 1.* 2.4 2.8 4.2 3.2 2.7 3.2 Calcium (og s l) 0.3 1. 4 3. 3 3.1 4.1 3.2 2.4 3.3 3.3 4.1 8.1 3.4 2.4 2.4 4.2 1.0 3.8 3.3 3.5 3.1 3.3 10.0 3.8 3.6 3. 4 4.0 4.9 3. 6 2.l 2.f 4.2 4,2 3. 6 44 3.3 15.0 3.9 3.7 e.4 4.0 0.6 0.1 0.1 0.1 0.2 0.1 01 0.1 ft+a (eg.s'8) 0.3 0.20 0.1 0.1 0.1 0.1 C.1 0.1 0,1 0.3 0.2 0.1 0.1 0. 2 1.0 0 40 0.2 0.1 0.3 0.4 0.1 0.1 10.0 0.20 0.4 0.1 0.1 0.3 03 0.1 01

0. 2 0.4 3. 3 U.1 15.0 0.20 0.5 34 01 0 09 0.02 0.02 0.01 0.03 0 02 0,02 0.01 mangmoe (og 4 s) 0. 3 0.03 0.03 0.02 0.02 0.01 0.02 0.01 0.02 0.02 0.02 0.02 0.02 0.02 0.01 0.03 6.0 0 03 0.03 0.03 0.02 0.06 0.03 0.04 0.13 0.02 0.03 0.03 0.02 0.04 10.0 0.03 0.03 1.30 4.01 15.0 0 03 0.05 1.40 0.01

1. 9 1. 7 1. 7 1. 7 1.4 1.4 1.4 1.4 estaes t wo (og 1 8 ) 0.3 1.f5 14 1. 4 1. 6 1.6 1.4 1.4 1.6 1.0 1.50 1. 3 1. 4 1.6 1.9 1.4 1.6 1.7 1.6 1.7 16 1.4 1, 5 to 10.0 1.60 1.4 1.6 1.6 18 1. 9 1.4 1. 4 17 1. 4 15.0 1.50 1.4 1. 7 1. 4 14 10 13 20 10 4.8 13 to leetuo tog s *) 0.3 9l 4.0 12 22 10 B.6 12 20 50 tS 8.5 14 21 A..' 46 12 19 10 8.6 13 20 10 8.1 12 20 10.0 9.5 4.7 11 21 10 8.2 11 20 15.0 9.4 8.1 11 li 2.9 2.5 2.2 3.0 2.2 2.1 1.5 2.9 Detesti e (se 4*8) 0.3 2.i 22 1.9 1.0 3.0 2. 2 2.0 1.9 2.9 90 2.2 20 2.1 3. 0 2.6 2. 2 2. 0 2.0 J.2 3.0 2.2 1.9 2.0 3.0 10.0 '.2 2.0 22 3.0 2.4 3.0 2.1 2.0 2.1 ;
15.0 2.3 2.0 24 3.1
0.t2 0.1 0.1 0 10 0.20 0.1 01 0.1 alvat awa (*6 8 8 ) 0.3 0 20 0. 20 0.10 0.10 0.1 0.1 0.10 0.30 0.3 0.1 0.10 0.20 0.1 S.0 0.70 0.20 0.10 0.30 0.5 01 0.1 0 20 0.50 0.10 4 10 0.20 0.3 0.1 0.10 10 0 0.20 0.7 0.1 0.1 16,0 0.30 0.70 0.10 0.10
0. 30 0.20 0.1 0.2 0.1 i. .
0.1 02 coastwo (eg.4*8) 0.5 0.20 0.30 0.10 0.20 0.1 0.1 0.2 0.20 0.10 0.10 0.1 0. 2 0.1 50 0 to 0.10 0.10 0.1 0.1 0.1 0. 2 10 0 0 10 0.10 0.10 0.20 0.10 0.10 0.1 0.2 f.2 0.1 0.1 0.2 il 0 0.10 0.10 0 10 0 60
?. 8 3.1 4.1 30 2.4 34 Coppe* (,g a 31 05 4.4 2.6 4.$ 31 46 4.7 10 40 2.0
5. 0 67 1. 0 43 3. 0 1. 0 34 10 0 2.3 1. 0 41 3.7 10 36

2. 7 1.0 11 0 27 10 l.1 l 16 t.0 1.c 20 0.5 1.0 1e 20 t.4s (,414 05 0 50 1. 0 Le 20 2,0 0.5 10 LO 2: '
50 0 Sw I0 10 2. 0 0.4 10 1. 0 20 05 1. 0 1C 2.0 0.5 1.0 1. 0 10 0 0 50 1.0 1. 0 20 c.l 10 1. 0 20 15 0 0 50 t.c t.- 2. 0 33 2. 0 2.0 42 43 20 20 Inc (we 8*8) 05 42 22 20 20 42 45 20- 23 ! 5.0 42 96 1.1 21- 42 20- 20 42 ea -. 4: ?, ,3 : 4-ue 4 I i Blank spaces indicate samples not collected. i 20 i l
Appendix 3-1 Monthly phytoplankton standing crop parameters (density in units /ml, biovolume in mm8/m*, algal carbon in mg/m8) and taxonomic composition for samples collected on Lake Wylie from December 1986 through November 1987. < Note: mean surface aren were not calculated. l 1 I T 21 4
4 l
d e.... . .. .... . .. .... ... .. . .
I g 44444 444 4444 4 44 4444 444 44 4 4 W ~ [. . .... ... .... . .. .... ... .. . . . E E j d ~ ~e.. --~ ~~ - ~ u. ~~-- u.. e. - - l n f fdis fad aidi d di Aida fif ff i s
v. ::::: ::: cans: :::: snese sn4 e y g ff444 f44 4444 4 44 4444 fff ff 4 f 2
d' ~ ...+ ..meamm . -. e-.. .n- .m . . l ff444 faa iidi i di A444 fif fs is [ Ne i N E" g 3 322 F33 235 3 M* *nSt 5% 33 = 1 l* y i $" $$$$i'$ d* 5'i $$$ i$ ' h
, u ,~~ .:
o e
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e
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= s n gE
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2 j2 2$3* $ $****$ j$$ 2l 55 $
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8unl.
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I i 22 _-_ .. . U
A - PWrTEPLAfeLitSt STafGENs Catr II LtKaTI9et tre.o SaprtE CaTE: 12/o9/06 Tim s e90s oEPTNt75: 5.e wafe o pe5x n mass exovoltset mass alcat cmmens mass sumEact anta s s s -s te6IT5n9L % IUTAL ret /M % TOTat reEnt 2 TSTal peg aM 2 TUTat cntonePwvtr
244 12.s 112.3s 19.1 15.76 24.s e e.a afettsnacoEsas sPsaattis 16 o.s e.+7 e.o e.le e.1 e e.e C6P.mPK at94t98a5 49 2.4 so.o2 1s.6 10.29 16.2 e 0.9 cc ;nnaztes Ytesut 16 e.a s.47 1.4 1.27 z.e e e.e
_cauctsEnza InefaulamIs is e.s z 79 e.s e.39 e.6 e e.o sctmetsequs aseiaTus van. ozras==Tus 16 e.s s.94 e.6 e.65 1.e e e.o SCENEoEspe#5 EIueseICausa ss 1.6 7.59 1.2 1.26 1.9 e e.e CSCCGIo enEE985 9e 4.9 9.64 1.6 1.00 2.s e e.e sACILLaRIOPwYcEa5 1126 57.o 55s.94 60.2 2s.e9 44.2 e W.e MEtJ51Ra e1STawS 9e 4.9 ss.6s 5.7 s.o9 4.s e e.e mLemIna omaams aTa 65 s. 16e.67 re.7 9.55 15.e e e.e 16 e.s z.44 e.4 e.ar o.4 e e.o _ wtrzscura_as e Ta rr.zs s.z e e.e mzTzscura natsatzca 65 s.z s.7 z.e5 satLETONEMa PWTafE55 6e5 30.6 32.57 5.5 4.67 7.5 e eO STErnamoorscus ser. 16 e.s 3.e5 e.6 e.se e.5 c e.o _syntoma_ acus is e.s me.7s 3.1 1.as z.e o e.o testotwTir1Es CEwTamTE exare s z45 12.4 71.1s 12.1 6.sz le.7 e e.e N canyserwvcEat 65 s.2 4.s2 e.s e.95 1.4 e e.o
" toeroEwTrnte coervsspwycEaE 65 3.2 4.e2 e.s e.9s 1.4 e e.o CRYPTOPHYcf.M 5s9 27.s 115.6s 19.7 1s.71 29.4 e e.e CRvPTtMEDenS E8FJ5a s2 4.1 41.le 7.o 6.to 9.7 o e.e caTrie r waTc 16 e.s 21.56 s.6 a.es 4.4 e e.e 441 22.s 52.94 9.9 9.66 15.1 e 0.8 festat9t'Y EJTa 1974 se5.es 6s.49 e SafrLE TOTALS .1 4
. . . . .-_ . - . -. _- .._ _ . . _ . _ - - - _ _ = _ ~ ,
PWrioPtafelftse LTancine cacy II LOCaTItses rie.e s M C eat (s.12/e9/e6 T1W: e9ee sEPTMt n g le.e mass seust?v was slavetunt nEase staat r- mass stewace ansa s s s -s 4881TSMel Z TUTAL set /H Z Terat sm15 Z Terat set est 2 TWrat 7s 6.2 26.11 7.e 3.71 11.6 e e.e ! petenerwvctM _ __ e e.s cutanvoonanas 1r 1.e re.e, s.* r.se e.e i 61 s. 6.es 1.6 1.1s s.s e e.e i catcore onEsses tacIttaalerwvcrat t-at 7s.e ese.65 al.1 r1.45 67.3 e e.e sr e6.91 2s.7 s.s6 16.e e e.e : stessna enasenAra s.1 e e.e wzrzscuta messara 1r 1.e 1.o6 e.s e.no e.6 1r 1.e 26.s6 7.2 1.s6 4.s e e.e ! nest.*esoteseta ser. e.e ses so.6 31.46 e.s 4.96 .14.2 e l I _sm_ttnenEMn_PeJ_4MES 4, 4.2 11.s6 s.1 1.16 s.6 e e.e s1EPeta 8DDIStus SPP. e.e j svmenn etacuenaca tr 1.s 6.., 1.7 ..ss 1.6 e nr 1.e 77.n 21.1 s.ss 11.e e e.e svarena uuen 1.* e e.e 1r 1.e s.41 1.* o. 6 _svwema_ser. er.66 11 s e.e, nr.e o e.e unseewrtries cimmare staians Ier 1r.6 ! cm yserwrcent r* r.o 1.21 e.s e.as e.7 e e.s 1r 1.o e.w. e.e e.o6 e.1 e e.e _aut w _puneet e.u e.r e.1r e.s e e.e tonnewrtr:Le cnarserwecame ir 1.e N 14F 1r.6 41.es 11.s 6.41 2s.1 e e..
** cRvPitN'OlycEat o.e es r.1 Irgs. s.s z.es s.e e
_ceverouseas_esosa 1r 1.s 16.27 +.* z.1s 6.7 e e.e caveressens ova;A e e.o annessasens muuta 11e v.4 1s.2+ s.s z.e1 7s 1 57 3.1 e.*c e.1 e.le e.s e e.e m apwyctar sr s.1 e.*e e.1 e.le e.s e e.o 1 unisewrIrlto cacceto etut enteses 1 i 368.21 st.a. e sanPtr varats 116: i i
! -~
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v. 37::: era see: as s n: ne 2 : : :
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PetVTOPLAretTON OTANCING C#GP II _LOCATItps: 2151 0 Sai9tE SATE: 12/09/96 TipE t 1000 eEPTM8Mit e.3 MEAN eENSITY MEAN elWWOLLPE SEAN ALGAL r m gEAse SURFACE AeEA 3 3 3 2 -3 UNIT:VML 2 TOTAL fet A % TOTAL MG/Tl 2 TUTAL peg att Z TUTAL CMtanapwYCEAE 163 s.6 175.01 21.6 23.o6 22.5 e e.e CMLaffvDtMtpenS 9e 5.2 16e.93 19.8 20.59 29.e e 0.e 16 S.8 5.79 9.7 e.91 e.S e 9.0 GOLEfetINIA RAeFATA e S.9 33 1.7 7.59 e.9 1.26 1.2 SCENEDESMUS SUheRICAUen e.e 16 0.9 1.69 e.1 e.30 9.2 e COCCGlo GREENS SACItLARItretYCEAE 605 32.2 154.90 19.1 12.52 12.2 8 0.8 33 1.7 96.33 lo.4 4.1"6 4.6 e e.0
#Etc51RA GRANULATA e 8.0 409 21.7 21.e7 2.7 3.15 3.e
_tstEtITtseEis PSTAMD5 0.9 9.e7 e.7 e e.e STEP 9eANUDISCUS SPl'. 33 1.7 T.72 16 0.8 7.78 e.9 e.66 S.6 e e.e SYes[DetA NUMPfM5 e e.e 124tDUtTIFIEe CENTRATE eIATipts 114 6.0 33.20 4.1 3.18 3.1 163 S.6 11.76 1.4 2.26 2.2 e e.e CMRYLOPetVCEAE e EmetEMI A *maseUIC1LIATA 16 0.8 e.72 e.e e.15 e.1 9.9 16 0.8 1.41 0.1 S.26 e.2 e 9.0 UNOGLENDPSIS AMERICANA e e.e UNIDENTIFIEe CNRY5eetVCEAE 131 6.9 9.64 1.1 1.87 1.8 914 48.6 459.e2 56.8 63.54 62.9 e e.e m CRYPTOPHYCEAE e 9.e CRYPTtpet9445 EstSA 163 S.6 82.35 19.1 12.40 12.0 m 26.7 28.61 27.9 e e.e 163 S.6 2162 8 _CRYPienamAs_ovATA 16 S.8 91 87 11.3 18.e1 9.7 e S.e CRYPitWeDeAS REFLEMA e e.e 572 30.4 68.63 4.4 12.52 12.2 eMooantseAs MIsenA 32 1.7 6.95 e.8 1.08 1.e e e.e w _rwwwYCEAE o e.e CMRautercuS sPr. 16 e.s 6.78 e.8 1.os i.e 16 e.S S.18 0.9 e.94 S.S e e.e UNIDENTIFIED CtECUIe ettE GREEfe5 1877 807.65 192.48 8 fJMPLE TOTALS
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PHYTOPLA*Ttpd CTAPSING COOP 11 LtR~ATItper 21.o.o SAre'LE DATE el/33/07 TIM t o900 oEPTM4Mit 15.o _ MAN M NSITY MAN sItPWOLtM MAN ALGAL rammes MAN SURFACE AREA 3 3 3 2 -3 tMI1S/ML X TUTAL pel /M Z ISTAL MG/M Z TUTAL fel ett Z TUTAL 57 17.7 e.e9 2.1 1.4e 5.7 o e.e catenaPMYCEAE e.o 41 12.7 2.se s.6 e.53 2.o e AmIsTacotsreus rAtcArus 1.3 e e.e ARTHROBtJeJ5 1980125 4 1.2 2.43 e.6 c.35 catAMroneweens 4 1.2 1.12 e.2 ;... o.e e e.e 4 1.2 1.76 e.4 e.27 1.4 e e.o _ctremeluM sPP. 4 1.2 s.99 e.2 e.15 e.5 e 8.8 SctMEsESPIUS s1 JUGA 192 59.6 362.73 89.6 2e.23 7e.1 e e.e sAcILLARJ0PWYcEAE e o.e ASTERItp4ELLA FORME 5A 4 1.2 4.5e 1.1 e.31 1.1 ' e6 26.7 291.26 717 9 15.43 59.5 e O.e
~PE[USIRA ArtiGUA e e.e 12 3.7 4.22 1.8 e.3e 1.4 MELO5 IRA sISTANS e o.e 16 4.9 42.3e to.4 2.39 9.2 I MELUSImA GRA04fLATA e e.o 4 1.2 1.74 e.4 e.15 s.5 ! _ w!Tzscw!A_AcaculAeIS 25 L7 3.7e e.9 e.4_ 1.5 e e.e 1 wITzscmIA AswxTA e e.e 4 1.2 e.e5 2.1 0.52 2.0 i
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tmtofwTurate cuevsePwvcEAE 41 12.7 30.69 7.5 3.76 14.5 e e.S
! CRVPitPMYcEAC e.62 2.3 e e.o -0 2.4 4.13 1.0
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_sEtes 4a_estrases so 6.s 19.77 4.2 1.or s.e e e.e pet 5 sing amanna aTA 17 1.8 42.55 9.1 2.40 s.9 e e.e setettreseEsen Pertasse5 25 2.7 1.52 e.2 s.19 8.s e 0.9 emrateertrate Crestaart osareas 49 5.s 14.34 s.e 1.37 2.2 e e.e C80eV*ieretVCEaE 5e 6.5 11.Fe 2.9 2.19 s.6 9.8 sV9EstA SPIsWs4 25 2.7 11.26 2.4 1.71 2.4 e e.e UmeCLE9er$15 asEelCasen e e.4 e.71 e.1 e.1s e.1 e e.e , _tmeletter1 Fits Clarv3peeWCEat 25 f.7 1.01 9.3 e.35 9.5 e e.e l CavPiertevCtaf 519 56.7 51o.7e es.6 44.26 73.5 e e.e
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_ SYME ERA _PLAMTONICA 2.5 11.79 2.7 1.80 2.2 0.8 SYME 9mA SRMPDES 25 208 29.4 85.72 29.1 13.34 29.9 0 9.0 CNRYSED9tVCEAE a o.s 9.29 o.e 9.94 9.o e e.o _AutCMcNa5 Puney_g e.e 9 9.9 ERF,ENIA SUBAESUICILIATA 41 4.1 1.82 e.4 S.37 173 17.6 78.74 18.4 12.92 26.9 e 0.9
= SYNURA SPJNW54 0.13 e.2 e S.S S 9.8 9.71 9.1 O UNOGLENDPSIS AMERICJWet e.82 1.s e e.9 Se 5., 4.25 e.9 ErDENTIrIEe enRYsgewYCEst l
i 403 41.1 91.11 21.3 14.31 32.9 e 0.9 CRYPTCPffYCEAE e.62 1.3 e 9.1* e 0.8 4.11 e.9 i CRYPTt 94t2445 IRG5A 33 3.3 43.53 se,2 5.76 12.9 9 e.e 1 ._CRYPTjntsea< owATA 43.45 19.2 7.93 17.7 9 9.0 RHtK 99tpdAS M19eJTA 342 36.9 0.0 3.90 8.9 e.59 1.3 9 9.8 MYXOPWYCEAE 4 8 S.8 3.99 e.9 9.59 1.3 _O. 0.9 05CILLAftptlA GEM 19:ATA 425.76 44.65 9
'ME TUTALS 9T9 a
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P9tYTEPLAfeLTEN ST!tNSING Catr II l 40C* fit 98: 220.0 _S M J E E: 01/13/e7 TIME: IIse SEPTtet M I: 14.0 m ase SEreliv mm GIoweLunt mm au.Ar. raamme um suorACE AuA 3._3 3 2 -3 LSeITSntL 2 TUTAL tet /M 2 TOTAL MGMt 2 TOTAL fee an 2 TOTAL 14.e o.e CatomePwYcEAE ter 26.5 15.62 10.4 2.61 e AMKISTRODE2 U3 FALCATUS 79 12.1 5.16 3.4 1.02 5.4 e 9.e ARTecastsMuS Incus 7 1.e 3.91 2.6 e.57 3.e o S.e CatAmotezNAS 7 1.e 1.ee 1.1 e.29 1.5 e e.e _MICaACirINItr. PusItttet 7 1.e 3.ee 2.e e.45 2., e e.e l SCHPOL3141A SETIGEpA 7 1.e 1.76 1.1 S.28 1.5 e e.S SACILLARIcP96YCE8E '. '42 21.2 78.36 46.9 5.32 28.5 e e.e j _ASTERIEDeELLA 8-fESSA .I, 4.9 29.38 19.6 2.e3 ?e.9 e 0.8 i FRAGILARI A CRortseENSIS 15 2.e 11.77 7.8 e.86 4.6 e e.e i NITZSC9tIA AGNIfA 4e 6.1 5.93 3.9 9.66 3.5 e 0.9 RitIZO50LEMIA SPP. 7 1.e 14.25 9.5 9.84 4.5 e 0.0 _S4 tEriseEnA PvTAMGs 26 4.0 1.41 e.9 e.28 1.s e e.e tosIoENitrIEe CENinATE eIArten 26 4.e 7.63 5.e e.75 3.9 e o.e l CHRYSUPetVCEAE 61 9.4 6.87 4.5 1.17 6.2 e o.e _EpstENI AlmMOUICILIAT A 33 f.O 1.45 e.9 e.30 1.6 e e.e
g. OCHREPIEDeAS SPP. 7 3.0 1.44 e.9 e.24 1.2 e e.e w STELExtt10NAS EsICMUTtDen 7 1.e e.48 e.3 e.09 e.4 O S.9 SYNURA SPINO 5A 7 1.e 3.41 2.9 8.45 2.4 e e.S 194IDENTIFIE9 CleRYSW98VCEAE 7 1.e e.49 e.3 8.99 8.4 e C.e CRYPT @sfVCEeE 342 52.7 56.94 38.9 9.51 51.1 e e.e CRYPTt999eAS UVATA 13 2.s 17.46 11.6 2.31 12.4 e e.e att00cMONAS MIttJTA 329 58.7 39.48 26.3 7.fo 38.6 e o.e SAMPLE TUTALS 648 149.78 18.61 9 l
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i PHYTOPLApeLTtSt STANDING CROP II LOCCTItD8: 217.0 SAMLE_ DATES 92/10/87 TIME: 0900 DEPTMtMir 5.0 MAN DENSITY MAN SIOVOtt#E DEAff ALGAL ramat M AN SURFACE AREA 3 3 3 2 -1 ' t#61TS/ML Z TUTAL #99 /M Z T5TAL PRUM 2 15TAL fet un Z TOTAL CHLtm0PHYC(AE 88 10.1 7.94 1.1 1.45 2.4 0 0.0 Aset1STROrd.JELIS FALCATUS 76 8.7 4.96 0.7 0.98 1.6 e 9.0 FRANCEIA DROESCNERI 4 0.4 0.68 0.9 9.11 0.1 0 9.8 GONIUPt SOCIALE 4 0.4 1.37 0.1 0.21 9.5 0 0.0 SCENEDESNL7S tlUAgRgrama 4 g,4 g,93 g.1 9.15 9.2 9 9.9 BACILLARIOPHYCEAE 244 28.1 466.46 67.0 27.25 45.2 9 9.9 ASIERIONELLA FORMOSA 8 0.9 8.94 1.2 0.61 1.9 0 0.0 _HELOSIRA_ANsIGuA 76 8.7 256.50 36.s 13.59 22.5 9 o.O MELOSIRA GRAfAJLATA VAR. ANGUSTISSIttP. 28 3.2 24.18 3.4 1.78 2.9 0 0.9 NITZSCMIA AGNITA 16 1.8 2.49 S.3 0.27 9.4 0 0.9 RHIZ 050LENIA SPP. 20 2.3 43.1s 6.2 2.54 4.2 0 0.o _SYNEDRA_SPP. 4 0.4 1.76 0.2 9.15 0.2 4 S.O T ABELLARI A FEMESTRATA 72 8.2 122.33 17.5 7.65 12.7 e S.S 4DilDENTIFIED CENTRATE DIATipts 12 1.3 3.48 8.5 0.33 0.5 9 0.0 UNIDENTIFIED PEpstATE 91 Aft 915 8 0.9 3.70 9.5 9.31 9.5 0 9.9 CHRYTAPHYCEAE 340 39.1 8%.54 12.1 13.40 22.2 0 S.9 h AULSMONAS PUROVI 12 1.! 8.30 0.0 0.06 S.8 0 0.9
ERKENIA SIDAE901 CILIATA 36 4.1 1.59 0.2 8.33 9.5 8 S.9 108 12.4 7.93 1.1 1.54 2.5 0 0.0 MELEM* OICMUTt9th _ 11.13 SYpAJRA SPINOSA 169 18.4 72.91 10.4 18.4 0 0.0 UROGLENOPSIS AMERICJNA 4 0.4 9.35 0.9 e.96 S.9 0 0.0 LDtIDENTIFIED CNRYSOPetVCEAE to 2.3 1.47 0.2 9.28 0.4 e 0.9 CRYPitFHYCEAE 144 16.5 85.72 12.3 11.45 19.8 9 e.e CRYPitDtt90AS ERO54 8 0.9 4.03 0.5 S.68 S.9 0 0.0 CRYPicHONAS OVATA 36 4.1 47.63 6.8 6.34 10.4 0 0.0 y YPr_0MONAS REFLEXA 4 0.4 _ _22.54 3.2 2.45 4.9 0 0.9 RHMMRtt34AS MI9AJTA 96 11.0 11.52 1.6 2.18 3.4 0 0.0 PfYKOPHYCEAE 40 4.6 19.02 2.7 2.88 4.7 0 0.0 USCILLATORI A GEMItGATA 40 4.6 19.02 2.7 2.06 4.7 9 0.0 OINOPHVCEAE 12 1.3 31.64 4.5 3.41 6.3 e. 8.0 PERIDINItDE INC99tSPICutet 12 1.3 31.64 4.5 3.81 6.3 e 9.0 e68 695.32 60.22 0
_ SAMPLE TOTALS
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PHYTOPLAPETG4 CTANDING CRtr II LOCATIDHs 217.0 SA gtE DATJ: 02/10/87 TINE: 0900 DE PT Ht'CI:_15.0 HEAN DEtGITY P1EAN BIUVULUME t1EAN ALGAL CARBG4 NEM4 $URFACE AREA 3 3 3 2 -3 LHIT541L Z TOTAL m /M Z TUTAL P1G/M 2 TUTAL PM eM Z TUTAL Cet' OROPHYCE AE 56 6.6 6.27 1.5 1.08 2.0 0 0.0 APEa51RODESHlG FALCAIUS 52 6.1 3.39 0.8 0.67 1.2 0 0.0 ELAKATUTHEIX CELATIN05A 4 0.4 2.87 0.6 0.41 0.7 0 0.0 BACILLARIOPHYCEAE 84 9.9 63.75 15.3 4.34 8.0 0 0.0
*1ELOGIRA DIST APG S 0.9 2.75 0.6 0.25 0.4 0 0.0 NITZSCHIA AGNITA 28 3.3 4.20 1.0 0.47 0.8 0 0.0 RHIZOSOLENIA $PP. 8 0.9 17.27 4.1 1.01 1.8 0 0.0
8 0.9 0.43 0.1 0.06 0.1 0 0.0
_ #ELETG4EMA POT (f103 OVNEDRA PLAtEIG8ICA 4 0.4 2.11 0.5 0.17 0.3 0 0.0 1 ASELLARI A FEtESTRATA 20 2.3 33.98 8.1 2.12 3.9 0 0.0 t#4IDENTIFIE3 CENTRATE DIATctC 4 0.4 1.16 0.2 0.11 0.2 0 0.0 _t24IDENTIFIE0_ pet #4 ATE DIATGG 4 0.4 1.85 0.4 0.15 0.2 0 0.0 Ct1RY"0PHYCEAE 400 47.6 169.77 40.5 25.54 47.4 0 0.0 DINDBRYG4 SAVARICtM 4 0.4 1.13 0.2 0.18 0.3 0 0.0 12 1.4 22.54 5.4 _2.84 5.2 0 0.0 _t1AtteM0NAs ACARUIDts 0.0 SIE LEyR10NAS DICH0lGtA 12 1.4 0.88 0.2 0.17 0.3 0 SYNURA LP1tCSA 308 36.6 140.36 33.8 21.42 39.7 0 0.0
= UROGLENOPSIS AH RICANA a2 1.4 1.04 0.2 0.19 0.3 0 0.0 N 52 6.1 3.83 0.9 0.74 1.3 0 0.0
_LA(IDENTIFIE_0 CHRYSOPHYCEAE CRYPT OPHYCE AE 280 33.3 118.22 28.4 16.45 30.5 0 0.0 CRYPIG10t4AS OV4TA 52 6.1 68.80 16.5 9.10 16.9 0 0.0 4 0.4 22.54 5.4 2.45 4.5 0 0.0 _ CRYPT G10t_4A5_RE F LEFJL AHODG1[24A5 ftItUTA 224 26.6 26.88 6.4 4.90 9.1 0 0.0 4 0.4 1.66 0.4 0.25 0.4 0 0.0 tWXOPHYCEAE 4 0.4 1.66 0.4 C.25 . O.4 0 0.0 _CHR00Ctr.CUS SPP. 12 1.4 19.46 4.6 2.50 4.6 0 0.0 DINOPHYCEAE PERIDINIUM PUGILLLM 12 1.4 19.46 4.6 2.T,0 4.6 0 0.0 4 0.4 36.00 8.6 3.68 6.8 0 0.0 CHLURG10t4ADOPHYCEAE 4 0.4 36.00 8.6 3.68 6.8 0 0.0 GONYtGTG1LR1 SPP.
*ArirLE TUTALS 840 415.12 5s.86 0
P;fYTOPLA*TD4 STANDItG CROP 11 LOCATIfN: 215.0 $ AMPLE DATE: 02/10/87 TIME: 1000 DEPTHtH) 0.3 PEAN DENSITY MEAN BIOVULLPE FEAtt ALCAL CARBO 4 ffAN SURFACE AREA 3 3 3 2 -3 1241TS/ML % TUTAL 791 /N Z TUT *.L PC/M % TUTAL ret *M Z TUTAL 76 9.0 16.28 4.6 2.65 5.9 0 0.0 CHLOROPHYCEAE 32 3.8 2.09 0.5 0.41 0.9 0 0.0 AratISIRODESMUS FALCATUS 0 0.0 32 3.8 8.70 2.4 1.42 3.1 CHLAHYDOM0t4AS 4 0.4 1.09 0.3 0.17 0.3 0 0.0 SCEtEDESPSJS BIJUGA 8 0.9 4.40 12 0.M 1.4 0 0.0 STAURASTRtM !#P. 168 20.0 84.90 24.1 6.78 15.2 0 0.0 SACILLARIOPHYCEAE 0 0.0 ASTERID4ELLA FORMdSA 24 2.8 26.8k 7.6 1.85 4.1 32 3.8 10.98 3.1 1.01 2.2 0 0.0 _ME LUSIR A_DIST APG 1.7 0.55 1.7 0 0.0 F1ELUSIRA SPP. 16 1.9 6.27 24 2.8 3.60 1.0 0.40 0.8 0 0.0 HITZSCHIA AQ4ITA 0 0.0 20 2.5 8.80 2.5 0.76 1.7 SYNEDRA SPP. 0 0.0 TABELLARI A FEtESTRATA 8 0.9 13.59 3.8 0.85 1.9 32 3.8 9.29 2.6 0.89 2.0 0 0.0 LAIIDf MTIFIED CENTRATE DIATmG 1.0 0 0.0 LNIDENTIFIE0 pet #4 ATE DIATOPG 12 1.4 5.55 1.5 0.47 12,61 28.7 0 0.0 _CHRYSOPJrYCE AE 332 39.7 82.t3 23.5 0 0.0 12 1.4 0.30 0.0 0.06 0.1 AULt204AS PURDYI 40 4.7 1.76 0.5 0.36 0.8 0 0.0 TRKINIA SUBAEQUICILIATA 1.89 4.2 0 0.0 8 0.9 15.02 4.2 MALLOMat4AS ACARUIDES 0 0.0 120 14.3 8.81 2.5 1.71 3.8 _ST ELENRO4AS_DICICTWtA 120 14.3 54.63 15.5 8.34 18.7 0 0.0 g SYP4JRA SPItJOSA 1.0 0 0.0 32 3.8 2.36 0.6 0.45 1241DENTIF1EO CHRYSOPHYCE AE 41.1 0 0.0 CEYPTOPHYCEAC 248 29.6 130.01 3h2 18_.29 0 0.0 84 10.0 111.13 31.6 14.70 33.0 CRYPTG10NAS CVT!A 8.0 0 0.0 RHUDOMCR4AS MINtJTA 164 19.6 19.68 5.5 3.59 8 0.9 3.00 1.0 0.57 1.2 0 a.0 ffYx mayCEAE 1.0 0.57 '. . Z 0 0.0 8 0.9 3.80 USCILLATORIA GEMINATA 4 0.4 32.72 9.3 3.39 7.6 0 0.0 DINOPHYCEAE 3.39 7.6 0 0.0 4 0.4 32.72 9.3 PERIDINItM SPP. 836 351.44 44.49 0 SAMPLE TUTALS
WM;7
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PNYTOPLAf9LTt90 ETABSDS CStr II j TION: 215.0 S M E DATE: 02/19/87 TIMES _ 1000 DEPTNIMI: 6.0 M AN SENSITY IEAN BIWWWLtSE SEAN ALGAL rammes gEAM SURFACE AREA 3 3 3 2 -3 991 /M % TUTAL IEUM Z TOTAL 391 eM % TUTAL tscITS/ML % TOTAL 4.49 1.4 9.80 2.1 0 9.9 CHLOROPHYCEAE 44 7.0 0.5 o.36 o., 9 9.e AmISup0DEsMus rAtCATus la 4.5 1.s3 S.2 0.11 e.2 3 9.9 4 0.6 0.68 TRANCEIA ORCESCHERI 9.66 0.2 9.11 9.2 9 O9 4 9.6 tacEPHEIMIA $UBSALSA 0 ,3 9.3 9.15 9.4 9 o.9 4 o.6 _sttNEptseefs_9uAPRICAuoA 4 e.6 o.39 o.1 9.97 e.1 e e.e C0tCcIn sREEus 60.79 19.6 4.63 12.4 0 9.9 BACILLARISPNYCEAE 132 21.2 e 0.9 a 2.2 27.99 s.7 1.43 3.s _ Meta: IRA _AnsrouA 6.86 2.2 S.63 1.6 e 0.9 fELUSIRA DISTANS 29 3.2 0.0 4 9.6 1.69 e.5 0.14 0.3 9 NIT 25 CHIA ACICULARIS 1.5 0.54 1.4 8 8.8 32 5.1 4.se MITZSCHIA AQNITA 9.o6 0.1 0 9.9 e 1.2 9.43 e.1 _SmEt1IONEMA _r w AMOs 8 1.2 4.22 1.3 S.35 9.9 9 0.9 SYNLD$tA PLAmit961CA 13.93 4.5 3.33 3.5 9 0.9 44 7.7 (A41 DENT 1"IED CENIRATE SIAftSt5 0.5 9.15 9.4 9 9.9 4 0.6 1.85 UNIDENTIFIEP PEfet4TE SIAft9ES 21.85 7.0 3.65 9.8 0 e.9 134 21.9
'CHRYSOPHYCEAE 1.23 0.3 0.25 0.6 9 S.9 23 4.5 l *= EROLENIA SURAEOUICILIATA 4 0.6 9.32 0.1 0.06 9.1 9 9.9 @ ILEPHYRIt90 LITitptALE 2.3 9 e.9 24 3.s 5.25 1.6 9.es
_cCnROMONAS sPP. 2.05 9.4 e.40 1.8 9 9.9 28 4.5 STEtEFUMONAS DICM5TOMA 10.94 3.5 1.66 4.4 0 9.0 l 24 3.8 l SYNURA SPIfWEA 2.oe 8.6 9.49 1.9 e e.9 tMIoENTzrIEo CuRysGravCEAE 2a 4.5 17.95 47.9 9 9.9 284 45.8 125.51 49.6 CRYPIOPHYCEAE 12.2 109.55 32.5 13.38 35.7 e e.e 76 9.0 CRYPitMt94AS SWATA 298 33.5 24.96 8.9 4.55 12.2 9 RHODOMONAS MIDAFTA 4.59 1.4 9.79 1.s 9 8.9 12 1.9 MYXDPHYCEAE 8 1.2 .$.se 1.2 9.57 1.5 e 0.9 OsCILLAIORIA GEMINATA 0.78 S.2 0.13 9.3 9 0.0 4 0.6 USCILLATORIA L199ETICA S.4 2.79 7.4 9 9.9 4 0.6 26.12 ELELENOPHYCEAE 7.4 9 9.9 4 0.6 26.12 S.4 2.79 1RACHELtMtMAS MISPISA a 21.1 6.7e is.2 9 e.9 oINOPwvCEAE 1.2 652 5 9 9.9 8 1.2 65.45 21.1 6.78 le.2 PERIDINIUM SPP. 30s.79 37.29 e 620 1 SAMPLE TUTALS 1 1 I l
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),
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PHYTOPLAPETCH STAfeINC CROP II LOCATION: 210.0 SAMPLE OMEr 05/12/87 TIMER 0900 DEPTHEMI: 5.0 IEAN DENSITY MAN BIOVOLLDE PEAN ALGAL CAM MAf4 SLRFACE AREA 3 3 3 2 -3
% TOTAL PE/M % TOTAL peg eM X igTAL LMITS/ML % TOTAL i tot /M 2335 17.8 976.61 32.2 137.75 33.2 0 0.0 CHLOROPHYCEAE 0.5 0 0.0 ACTINASTMM MANTZSCMIX VAR. FLLNIATILE 219 1.6 10.06 0.3 2.08 146 1.1 9.52 0.3 1.88 0.4 0 0.0 AfstISTRODESMUS FALCATUS 0 0.0 146 1.1 23.43 0.7 4.11 0.9 AretISTRODESMUS FALCATUS MIRABILIS 0 0.0 CMLA* F00rO4AS 146 1.1 39.66 1.3 6.48 1.5 73 0.5 12.49 0.4 2.17 0.5 0 0.0 1 CMLOROGenIiM SPIRALE 0 COELASTRUM SMIAERICLM 73 0.5 98.41 3.2 12.98 3.1 0.0 438 3.3 667.62 22.0 86.68 20.9 0 0.0 DICTYOSPHAERILM EleRE8SERGIAPAM
} 4 KIRCteERIELLA 9MITARIA 73 0.5 15.05 0.4 2.55 0.6 0 0.0 1021 7.8 100.39 3.3 18.82 4.5 0 0.0 CUUID UREENS 1 6052 46.3 923.21 30.4 97.89 23.6 0 0.0 SACILLARItmfYCEAE 0 0.0 j NIT 2SCHIA AGNITA 73 0.5 10.93 0.3 1.23 0.2 6.0 26.50 6.3 0 0.0 SKELETEDErtA POTAMES 3427 26.2 183.49 l 219 1.6 51.44 1.7 5.20 1.2 0 0.0
STEPHANODISCUS SPP. 0 0.0 LMIDENTIFIED CENTRATE OIATtMS 2333 17.8 677.15 22.3 64.96 15.6
] i 1605 12.2 305.91 10.0 49.17 11.8 0 0.0 , CHRYSOPNYCEAE 2.2 0 0.0 1021 7.8 45.00 1.4 9.39 N ERKENIA SUBAEOUICILIATA 0 0.0 W 73 0.5 45.61 1.5 6.67 1.6 - ftALLt31134AS ALLANT5 IDES 0.6 0 0.0 73 0.5 15.94 0.5 2.68 _OCHROHONAS SPP. 438 3.3 199.37 6.5 30.43 7.3 0 0.0 SYNURA SPINOSA 1240 9.4 467.95 15.4 68.53 16.5 0 0.0 CRYPTOPHYCEAE 2.6 0 0.0 146 1.1 73.48 2.4 11.06 CRYPT 7 ETNAS EROSA 0 0.0 219 1.6 289.4 T 9.5 38.31 9.2 CRYPTtREDIAS OVATA 4.6 0 0.0 RH00GethAS MINUTA 875 6.7 105.00 3.4 19.16 l i 357.67 11.7 61.12 14.7 0 0.0 MYXOPHYCEAE 1823 13.9 j 343.37 11.3 58.68 14.1 0 0.0 OGCILLATORIA LIP 0ETICA 1750 13.4 73 0.5 14.30 0.4 2.44 0.5 0 0.0
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#411NASTEM GRACIL4P9At 0 0.0 16 2.1 1.04 0.5 0.20 1.0 AretISTRODESMUS FALCATUS 0 0.0 S 1.0 3.63 1.9 0.55 2.8 MICRACTINILM PUSILLLM 0 0.0
_SCEpd3ES84AS SIJUGA 8 1.0 1.76 0.9 0.29 1.5 48 6.3 4.75 2.4 0.88 4.5 0 0.0 C00C513 GREENS 480 63.8 151.45 79.5 12.57 65.0 0 0.0 SACILLARISPetYCEAE 0 0.0 8 1.0 1.72 0.9 0.17 0.8 _A_CledANTMES MICSEEEPHALA 5.7 1.01 5.2 0 0.0 MELOGIRA DISTANS 32 4.2 10.98 16 2.1 41.26 21.6 2.33 12.0 0 0.0 PEttEIRA GRAf4JLATA 0 0.0 88 11.7 54.24 28.4 4.33 22.4 MELGSIDA ITALICA VAR. TE94JISS18tA 1.3 0 0.0 16 2.1 2.40 1.2 0.27 _NITZSCIGIA_AGIITA 12.01 6.5 1.73 8.9 0 0.0 SKELETEDdEMA PUTAMGS 224 29.7 8 1.0 1.89 0.9 0.19 0.9 0 0.0 STEPHAN0015CUS SPP. (M10ENTIFIED CENTRATE DIATtMS 80 10.6 23.24 12.2 2.23 11.5 0 0.0 8 1.0 3.70 1.9 (*. 31 1.6 0 0.0 LMIDENTIFIED PEDetATE DIAftMS 56 7.4 3.42 1.7 0.67 3.4 0 0.0 C3eRYSOPMVCEAE 0 0.0 0.5 0.22 1.1
$ ENEENIA SUBAEOUICILIATA (MIDENTIFIED CadRYSOP98YCEAE 24 32 3.1 4.2 1.06 2.36 1.2 0.45 2.3 0 0.0 40 5.3 7.87 4.1 1.30 6.7 0 0.0 l CRYPTOPNYCEAE 3.1 0 0.0 8 1.0 4.05 2.1 0.60 l CRvPTOMONAS Eac54 0.70 3.6 0 0.0 32 4.2 3.84 2.0 RMODt9thAS MIt4ATA 80 10.6 15.72 8.2 2.68 13.8 0 0.0 f PfVXCPNYCEAE 13.8 0 0.0 1 (E;CILLATORIA L170eETICA 80 10.6 15.72 8.2 2.68 752 190.48 19.31 0
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P fYTOPLAts, TON STANDING CROP II LOCATION: 215.0 SAMPLE DATE: 05/12/87 TIME: 1000 DEPTHEM): 5.0 MEAN DENSITV MEAN 810VOLtmE PEAN ALGAL CARBtM IEAN SURFACE AREA 3 3 3 2 -3 ' UNIYS/ML % TOTAL tot /M % TOTAL MG/M .* TOTAL tm eM Z TOTAL 1 ) , 11.97 3.9 0 0.0 l CMLOROPHYCEAE 511 6.7 67.79 2.0 146 1.9 9.52 0.2 1.88 0.6 0 0.0 l AtalISTRODESMUS FALCATUS 73 0.9 19.83 0.5 3.24 1.0 0 0.0 CMLAMYDOMtMAS 73 0.9 16.93 0.5 2.82 0.9 0 0.0 SCENEDESetJS QUADRICAUDA 219 2.6 21.51 0.6 4.05 1.3 0 0.0 00CCGIO GREEMS , 3792 49.9 2377.67 70.5 149.04 49.7 0 0.0 BACILLARIW MYCEAE 583 7.6 1968.98 58.4 104.32 34.8 0 0.0 MELD 5 IRA AreIEUA 2261 29.8 121.03 3.5 17.47 5.8 0 0.0 _".#_,ELET0p(MA POTAMOS 875 11.5 253.92 7.5 24.36 c.1 0 0.0 (MIOENsIFIES CENTRATE OIATEMS (MIOENTIFIES PEpstATE 01AftMS 73 0.9 33.75 1.0 2.09 0.9 0 0.0 i 875 11.5 55.88 1.6 11.06 3.6 0 0.0 CHRYSOPHYCEAE
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'CRYPI U 53 ERO5A 63.83 21.2 0 0.0 I OD CRTPitmtMAS UVAYA 365 4.8 482.37 14.3 N 1167 15.3 140.09 4.1 25.55 8.5 0 0.0 RMOptmtMAS MIpeJTA i
730 9.6 170.94 5.0 27.24 9.0 0 0.0 j MYXDPHYCEF 0 0.0 219 2.8 90.96 2.7 14.05 4.6 l CHR500tECUS SPP. 0 0.0 U";C1LLATORIA GEMINATA 13 0.9 34.66 1.0 5.26 1.7 } 219 2.8 42.93 1.2 7.33 2.4 0 0.0 g _E;CILLATORIA LIf0ETICA 0.60 0.2 0 0.0 219 2.8 2.40 0.0 j LMIDENTIFIES A0 SLUE GREEIG 7586 3368.13 299.75 0 I SAMPLE TUTALS I I I 1 1 i i i _ _ - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - _ _ _ _ _ _ _ _ _ _ _ . ._. _ _ _ _ __ _ _ _ _ _ . _ _ _ _ - - _ _ - -_ v _ _m_-____ _____ ____ _ _________
PHYTCPLAPETG4 STANDItC CROP Il LOC ATIG4: 215.0 SAMPLE DATE: 05/12K 7 TIME: 1000 DEPTHEM): 9.9 MEAN DEtGITY MEAN BICVUltME t1EAN ALGAL CARBON F1EAN SURFACE AREA 3 3 3 2 -3 U4ITS/t1L % TOTAL t?i /M % TUTAL PCat % TOTAL tti en % TOTAL CHLCRUPHYCEAE 96 7.6 11.60 3.6 2.06 6.3 0 0.0 APEISTRODESMUS FALCATUS 24 1.9 1.57 0.4 0.31 0.9 0 0.0 t SCENEDESMUS ARMATUS VAR. SICAUDATIS 12 0.9 2.90 0.9 0.48 1.4 0 0.0 SCEi&_'AJS QUADRICAUDA 12 0.9 2.79 0.8 0.46 1.4 0 0.0 SE LIMt< TR,.2* MitATTtht 12 0.9 0.80 0.2 0.15 0.4 0 0.0 00CCCID GREEtG 36 2.8 3.54 1.1 0.66 2.0 0 0.0 BACILLARI5'ttYCEAE 960 76.9 264.99 82.5 23.32 72.1 0 0.0 _M_ E LUSIR A_DIST APG 108 C.( 3L10 11.5 3.41 10.5 0 0.0 MELUSIRA ITALICA VAR. TEr&JISSIMA 120 v.6 73.95 23.0 5.91 18.2 0 0.0 NITZSCHIA AGNITA 2" 1.9 3.60 1.1 0.40 1.2 0 0.0 RHIZUSULENIA SPP. 24 1.9 51.82 16.1 3.05 9.4 0 0.0 _SFELETO_1EMA POTAMOS 420 33.6 22.51 7.0 3.25 10.0 0 0.0 STEPHANCDISCIS SPP. 12 0.9 2.83 0.8 0.28 0.8 0 0.0 udIDENTIFIED CENTRATE DIATOG 252 20.1 73.19 22.7 7.02 21.7 0 0.0 120 9.6_ 10.90 3.3 2.00 6.1 0 0.0 CHRY' M_ CEAE ERKENIA *.AJBAEQUICILIATA 48 3.8 2.12 0.6 0.44 1,3 0 0.0 CD CCHROO4AS SPP. 24 1.7 5.25 1.6 0.88 2.7 0 0.0 W U4 IDENTIFIED CHRYSt,T.YCEAE 48 3.8 3.54 1.1 0.68 2.1 0 0.0 CRYPIUPHTCEAE 12 0.9 25.88 4.9 2.10 6.4 0 0.0 CR1PTO ORAS UVATA 12 0.9 15.88 4.9 2.10 6.4 0 0.0 t"YXUPHYCEAE 60 4.8 17.76 5.5 2.83 8.7 0 0.0 CHROCCCCCtG SPP. 12 0.9 4.99 1.5 0.77 2.3 0 0.0 USCILLATORIA GEMINATA 12 0.9 5.70 1.7 0.86 2.6 0 0.0 CSCILLATCRIA LIttJETICA 36 2.8 7.06 2.1 1.20 3.7 0 0.0 SAMPLE T6TALS 1248 321.11 32.31 0
PetVTOPt APETCR4 STAreING CROP II LOCATICDd: 220.0
APPLE DATER 05/12/87 TIME: 1100 DEPTHiMir O.3 MAN DENSITY MAN BIOVOLtAE MAN ALGAL CARkmA4 M AN SURFACE AREA 3 3 3 2 -3 791/M % TUTAL MG/M % TOTAL 791 Mt % TOTAL LMITS/ML % TOTAL 512.09 6.5 75.42 10.2 0 0.0 1751 10.4 CH_LOROPNYCE{ 0.0 0.79 0.1 0 0.0 ACTIN STRt21 GRACILIPtst 73 0.4 3.94 33.32 0.4 6.59 0.8 0 0.0 Af0tISTR00E3tUS FALCATUS 510 3.0 219 1.3 59.51 0.7 9.73 1.3 0 0.0 CHLAPfYO(MtMAS 5.8 0 0.0 219 1.3 333.89 4.1 43.35
_DICTYOSPMAERItS_t EHRE9eERCIAfAff 4.89 0.0 0.96 0.1 0 0.0 SELEMASTRLet MIstJTipt 73 0.4 292 1.7 40.69 0.5 7.28 0.9 0 0.0 TRELBARIA SETIGERLpt 0 0.0 365 2.1 35.85 9.4 6.72 0.9 COCCOIO GREENS
%.0 335.93 45.5 0 0.0 BACILLARIOPefYCEAE 6855 40.8 5344.53 45.6 195.59 26.5 0 0.0 MELG5 IRA AfSIEUA 1994 6.5 3691.58 1% 0.6 21.87 0.2 2.% 0.3 0 0.0 NITZSCMIA AGNITA 14.66 1.9 0 0.0 1896 11.5 101.51 1.2
_SK_ELETONEMA POTAMOS 460.58 5.6 20.96 2.8 0 0.0 SYNE 0RA ULNA 73 0.4 32.09 0.3 2.78 0.3 0 0.0 SYNE 0RA SPP. 73 0.4 3573 21.3 1036.91 12.8 99.48 13.4 0 0.0 LMIDENTIFIED CENTRATE 01ATERt3 86.83 1.0 16.80 2.2 0 0.0 CHetYSOPHYCEAE 1239 7.3 0-2 4.69 0.6 0 0.0 510 3.0 22.50
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73 0.4 15.94 9.1 2.68 0.3 0 0 0.0 0.0 656 3.9 48.40 0.5 9.43 1.2 UNIDENTIFIE0 CHRYSOPHYCEAE 27.8 1982.66 13.3 169.88 23.0 0 0.0 CRYPTtFttVCEAE 4668 110.28 1.3 16,60 2.2 0 0.0 CRYPTttetMAS EROSA 219 1.3 2.1 482.37 5.9 63.83 8.6 0 0.0 365 _CRYPTtMONAS OVATA 490.02 6.0 89.45 12.1 0 0.0 EHODEMtMAS M19EITA 4084 24.3 48.71 5.7 77.81 10.5 0 0.0 2388 13.0 PfYXOP98YCEAE 3.1 0 0.0 365 2.1 151.56 1.8 23.42
._CHR00COCDJ_S SPP. 9.5 314.74 3.8 53.79 7.2 0 0.0 05CILLATORIA LIP 9dETICA 1604 2.40 0.0 0.60 0.0 0 0.0 LMIDENTIFIES COCC810 BLUE GREENS 219 1.3 596.39 7.3 61.83 8.3 0 0.0 75 0.4 OINOPHYCEAE 61.83 8.3 0 0.0 73 0.4 596.39 7.3 PERIDINILM SPP.
8091.21 737.67 0
*ME TOTALS 16774
l PHYTOPLAETt94 STApeIDS Catr II l f LtEf ItDI: 22').O SAf9tE_0 ATE: 05/12/C7 TItEt 1100 DEPTHEMS: 5.0 i t IEAN DENSITY IEAN BIOVER.t2E IEAN ALGAL CAmt94 DEASE StmFACE AREA
,. 3 3 3 2 -3 . tMITS/ML Z TOTAL tot /M % TUIAL MG/M % TOTAL fel e.1 X TOTAL l . C.ML_tWOPHYCE AE 2189 20.2 355.99 17.4 58.82 22.9 0 0.0 ACTINASTRt#t MANTZSCMII VAR. FLLNIATILE 73 0.6 3.94 0.1 0.79 0.3 0 0.0 AfstISTRODE*# RAS FALCATUS 292 2.7 19.04 0.9 3.77 1.4 0 0.0 OICTYU5PMAERItal ENROSERCIAfRAI 73 0.6 111.25 5.4 14.44 5.6 0 0.0
._stIpCleER_IELLA SPP. 73 0.6 14.09 0.6 2.41 0.9 0 0.0 SCEDEDE58t#5 AIOt4TtF VAR. BICAUDATUS 73 0.6 17.63 0.8 2.93 1.1 0 0.0 SCEDESESMuS sumICAUDA 219 2.0 50.81 2.4 8.48 3.3 0 0.0 TREtaARIA SETIEnt#t 73 0.6 10.17 0.4 1.81 0.7 0 0.0 COCCUIS GREEN 5 1313 12.1 129.07 6.3 24.19 9.4 0 0.0 BACILLARIGPWYCEAE 5G32 46.6 1010.45 49.3 80.21 34.3 0 0.0 CYCLUTELLA SPP. 365 3.3 154.81 7.5 13.54 5.2 0 0.0
] ._NITZSCtsIA AENITA 73 0.6 10.93 0.5 1.25 0.4 0 0.0 RHIZO 5GLEMIA SPP. 219 2.0 472.39 23.0 27.08 10.8 0 0.0 SKELETt9dEMA POTAMOS 3792 35.1 203.01 9.9 t9.32 11.4 0 0.0 i LMISENTIFIEO CENTRATE DIATCDES 583 5.4 169.30 8.2 16.24 6.3 0 0.0 I j CNetvs0PleYCEAE 584 5.4 38.69 1.8 7.62 2.9 0 0.0
; a> ERKEMIA SUSAEOUIC1LIATA 1% 1.3 6.43 0.3 1.34 0.5 0 0.0 ' 4.n tsGIDENTIFIEO CNRYSOPetYCEAE 438 4.0 32.26 1.5 6.28 2.4 0 0.e XAMit!OPtfYCEAE 1% 1.3 44.00 2.1 7.09 2.7 0 0.0 01CHETTtMCOrr1M SPP. 146 1.3 44.00 2.1 7.09 2.7 0 0.0 CRYPTEMEYCEAE 1678 15.5 432.64 21.1 64.93 26.0 0 0.0
} 'CRYPTOMrsens Enesa 146 1.3 73.40 3.5 11.06 4.3 0 0.0
. CRYPitDqtpeAS OVATA 1% 1.3 192.89 9.4 25.52 9.9 0 0.0 l WesODOMONAS MIpaJTA 1386 12.8 166.26 8.1 30.35 11.8 0 0.0 1
1 ffYXOPetVCEtE 1167 10.8 163.87 8.0 27.08 18.8 0 0.0 Chit 00tetCUS SPP. 73 0.6 30.30 1.4 4.68 1.8 0 0.0 4 OGCILLATORIA LitedETICA 656 6.0 128.77 6.2 22.00 8.5 0 0.0 _tMIDENTIFIEO CEECUIO BLUE GREE 8C 438 4.0 4.80 0.2 1.20 0.4 0 0.0 l SAffLE TUTALS 10796 2045.63 256.55 0 I l i i
PHYTCPLAFETON ETANDING CROP II LOCATICMr 223.0 SAPPLE CATE: 05/12/8/ TIME: 1100 DEPTHIHlr 10.0 MEAN DENSITY PEAN .bI0VOLLAE MEAN ALGAL CARetRs MEAN SURFACE AREA 3 3 3 2 -3 UNITS /ML Z TOTAL fft/M Z TOTAL MG/M Z TOTAL 191 ott Z TOTAL 192 9.5 20.09 2.7 3.68 5.5 0 0.0 CH_LOROPHYCEAE APEISTRODESMUS FALCATUS 72 3.5 4.71 0.6 0.93 1.3 0 0.0 EIRCsedERIELLA 'MnLITAA1A 24 1.1 4.95 0.6 0.86 1.2 0 0.0 24 1.1 3.35 0.4 0.59 0.8 0 0.0 TREUBARIA SETIGERLM 72 3.5 7.09 0.9 1.32 1.9 0 0.0 C0C00I0 GREENS 1369 67.8 531.86 73.6 38.54 57.7 0 0.0 BACILLARIOPHYCEAE 24 1.1 125.38 17.3 5.97 8.9 0 0.0 COMPMONEMA SPP. 168 8.3 57.75 7.9 5.31 7.9 0 0.0 _MEtOsIRA DISTAms 6.4 6.68 10.f> 0 0.0 SKELET0NEttA POTAMOS 865 42.8 46.32 24 1.1 11.46 1.5 0.97 1.4 0 0.0 SYNE 0RA RUMPENS 144 7.1 245.00 33.9 15.32 22.9 0 0.0 TABELLARIA FEsESTRATA 0.0 120 5.9 34.8e 4.8 3.34 5.0 0 _tA4IDENTIFIE0_CENTgATE O! ATON3 0 0.0 LMIOENTIFIED PEfe4 ATE DIATERTS 24 1.1 11.11 1.5 0.95 1.4 192 9.5 16.94 2.3 3.17 4.7 0 0.0 CHRYSSPNYCEAE 24 1.1 1.06 0.1 0.22 0.3 0 0.0
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144 7.1 10.63 1.4 2.07 3.1 0 0.0 LMIOENTIFIFO CHRYStFHYCEAE CD 192 9.5 138.67 19.2 18.92 20.3 0 0.0
.CRYPTOPNYCEAE 16.82 25.2 0 0.0 CRYPT [M(MAS OVATA 96 4.7 127.14 17.6 96 4.7 11.53 1.5 2.10 3.1 0 0.0 RH(20M(24AS MIf4JTA 72 5.5 14.15 1.9 2.41 3.6 0 0.0
_ W CEAE 72 3.5 14.15 1.9 2.41 3.6 0 0.0 05CILLATORIA LIFedETICA 2017 721.70 66.72 0 SAMPLE TOTALS l l l l a . _ _ -r -r- - - _ _ _ - - _- __m _ . _ _ _ _ _ _ _ _ _ _ _
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PtfYTOPLAFETG4 STAPOING CROP II SAMPLE DATEt 06/09/87 TIME: 0900 DEPTi4E M I: 0.3 _LOCATIG4r 210.0 d MEAN DENSITY MEAN SIOVUltAE MEAN ALGAL CAROG4 PEAN SURFACE AREA 3 3 3 2 -3 1241TS/ML Z ltTTAL tot /M % TUTAL ttG/M % TOTAL tot att X TUTAL 1514 8.6 543.71 11.2 73.89 13.3 0 0.0 l CHt0DOPNYCEAE 1% 0.9 7.8T 0.1 1.59 0.2 0 0.0 ACTINASTRUM MANT2SCMII VAR. F LINI ATILE 1% 0.9 9.52 0.1 1.88 0.3 0 0.0 APEISTRODESMUS FALCATUS 219 1.4 14.% 0.2 2.85 0.5 0 0.0 A4EISTRODESPRJS SPIRALLIS 73 0.4 164.97 3.4 20.31 3.6 0 0.0 ARIMRUDESPRJS_ INCUS RALFSII 1.1 0 3.0 CLUSTERIOPSIS LG4GISSIttA VAR. TROPICA 13 0.4 42.86 0.8 6.32 i 0 0.0 73 0.4 12.41 0.2 2.16 0.3 00':MARItR1 ASPHAEROSPCHtDS VAR. STRIGU"Art 73 0.4 9.84 c.2 1.76 0.3 0 0.0 CRUCICENIA 1RRECULARIS 0 0.0 73 0.4 218.41 4.5 25.90 4.6 PAN 00 RIMA _HOURDt 0.4 0 0.0 73 C.4 16.37 0.3 2.74 PLAFETOSPHAERIA GELATINGSA 0 0.0 73 0.4 17.63 0.5 2.93 0.5 SCENEDESetJS ARMATUS WAR. SICAUDATUS 0 0.0 73 0.4 4.89 0.1 0.96 0.1 SELENASTRUM MIISJTIP* 0 0.0 73 0.4 10.17 0.2 1.81 0.3 _TREUBARI A SETIGERUM 0.2 2.68 0.4 0 0.0 00CC010 GREEtc 1% 0.9 14.34 28 % 18.6 2367.12 48.8 162.73 29.2 0 0.0 BACILLARitritVCEAE 1.80 0.3 0 0.0 73 0.4 18.08 0.3 __CYCtGTELLAJENEGHINIANA 219 1.4 738.45 15.2 39.12 7.0 0 0.0 j MELOSARA AISBIGUA 0.0 4 @ PELUSIRA OISTAfC 292 1.9 100.11 2.0 9.22 1.6 0
656 4.3 546.65 11.6 41.75 7.5 0 0.0 l MELOSIRA GRAleJLATA VAR. ANGUSTISSittA 0 0.0 73 0.4 10.93 0.2 1.23 0.2
_MIT2*. CHIA _AGNITA 365 2.3 123.93 2.5 11.44 2.0 0 0.0
; N1TZSCMIA HULSATICA 27.88 5.0 0 0.0 219 1.4 472.39 9.7 RMIZU50LENIA SPP.
73 0.4 3.90 0.0 0.56 0.1 0 0.0
SRELETGEMA PUTAMOS 1.5 0 0.0 l SYNE 0RA IR71 PENS 219 1.4 104.63 2.1 8.88 12T% 2.6 12.18 2.1 0 0.0 1341 DENT E5EO CENTRATE 01Af tRG 458 2.8
) LD4 IDENTIFIES PEIO44TE 01ATGtS 219 1.4 101.28 2.0 e.67 1.5 0 0.0 1094 7.1 59.03 1.2 11.94 2.1 0 0.0 CHRYZ PffYCEAF 6.71 1.2 0 0.0 ERRENIA SUBAEgtf1 CILIATA 729 4.7 32.14 0.6 365 2.3 26.89 0.5 5.23 0.9 0 0.0 12410ENTIFIES CitRYSOP98YCEAE 438 2.8 132.04 7.7 21.30 3.8 0 0.0 gANT_ HOP 9fYCEAE 21.30 3.8 0 0.0 4MB 2.8 132.04 2.7 l OICHOTG1tK7TCt5 SPP.
I 854.76 17.6 132.10 23.7 0 0.0 CRTPTOPHYCEAE 3063 20.0 583 3.8 296.03 6.0 44.r8 7.9 0 0.0 1 _CRyP_TOMaNAS_EmaSA 5.9 38.31 6.8 0 0.0 CRYPTGWDeAS OVATA 219 1.4 28*.47 J 2261 14.8 271.26 5.6 49.51 8.9 0 0.0 i RHODOMONAS MINUTA 887.15 18.5 153.57 27.6 0 0.0 6491 42.5 i PfVXOPNYCEAE 0.0 0.02 0.0 0 0.0
~M;MUddist OUADRIOUPLICATLet 73 0.4 0.07 l
146 0.9 2.93 0.0 0.68 0.1 0 0.0 CHROUCCCCts DISPERSUS 51.13 9.2 0 0.0 t CHp0000tCUS SPP. 802 5.2 333.43 6.8 69.31 1.4 10.52 1.8 0 0.0 1% 0.9 ) _USCRLATOURIA GEMINATA 0.5 4.88 0.8 0 0.0 USCILLATORIA lit 0EII;A 1% 0.9 28.61 l 4959 32.5 450.39 9.2 85.34 15.3 0 0.0 RA800BEnttA L10EARE 0.0 0.60 0.1 0 0.0 219 1.4 2.40 CT~ 7IFIES COCCoIO stuE GREENS . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ - - - - - _ _ . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ ___
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PHVTOPLAFETON ST ANDId3 CROP II LOCATIO4: 210.0 SAPPLE DATE: 06/09/87 TIME: 0900 DEPTHIMI: 5.0 NEAN DEtCITY PEAN BIOVUltD1E PEAT ALGAL JABO4 NEAN SURFACE AREA 3 5 5 2 -3 UNITS /ML % TOTAL 791 /M % 10TAL PG/tt Z TtJf' t99 r-- % TOTAL CHLOROPHYCE AE 649 28.7 145.05 12.1 21.56 18.5 J 0.0 ACTINASTRLM MANTZSCMIX VAR. FLLNIATILE 385 17.0 20.76 1.7 6.21 S.6 W 0.0 AtMISTRCDE$ttJS FALCAT1JS 24 1.0 1.57 0.1 6.51 '.2 0 0.0 72 3.1 25.60 2.1 4.04 s.4 i 0.0 GCLEPEINIA RADIATA
KIRCNNERIELLA SPP. 48 2.1 9.30 0.7 1.59 f 0.0 PAPOURINA CHARKONIEPCIS 24 1.0 69.02 5.7 F" '.0 $ O.0 SCENEDESNUS BIJUGA 24 1.0 5.28 0.4 0.58 02 4 0.0 SCEFEDESPtJS QUADRIra:InA 48 2.1 11.1F 0.9 1.86 1.E D 0.0 CCCCCID CREEPC 24 1.0 2.56 0.1 Ob A.3 J 0.0 BACILLARIUPHYCEAE 1105 48.9 791.3F 66.0 58. 09 +-h ? O 0.0 NELOSIRA CRAtaJLATA 96 4.2 247.84 20.6 14.01 12.F 0 0.0 NELUSIR A CRANULAT A VAR. AFCUSTISSIMA 144 6.3 124.50 10.3 f .17 7.E O 0.0 t1ELEIRA ITALICA VAR. TENUISSIMA 481 21.5 295.91 24.7 E3.66 2f.i 0 0.0 NITZSCMIA AGNITA 24 1.0 3.60 0.3 e.4, 0.5 0 0.0 SKELET0tEMA POTAM35 48 2.1 2.58 0.2 0.35 0.5 0 0.0 96 4.2 4h87 3.6 3.96 _ .I . 3 0 0.0
_SYJEDRA WUP1PEtC 0 0.0 LR41DENTIFIED CENTRATE DIATOC 168 F.4 48.81 4.0 4.68 4.0 d4 IDENTIFIED PD&4 ATE DIATOtS 48 2.1 22.27 1.8 1.90 1.6 0 0.0 g CHRTSCPNYCEAE 72 3.1 8.79 0.7 1.57 1.3 0 0.0 24 1.0 5.25 0.4 '3.88 0.7 0 0.0 00hRO104AS SPP. LMIOENTIFIED CHRY* M CEAE 48 2.1 3.55 0.2 0.69 0.5 0 0.0 CarYPTtFWYCEAE 288 12.7 159.81 11.6 19.95 17.1 0 0.0 48 2.1 24.24 2.0 3.65 3.1 0 0.0 CRYPTO O4AS ERCSA 72 3.1 95.39 7.9 12.62 10.8 0 0.0 CRYPTO 104AS CVATA RMCDO10NAS MIPAJTA 168 7.4 20.18 1.6 5.68 3.1 0 0.0 120 5.3 49.14 4.1 7.54 6.4 0 0.0 PfYXCPHYCE AE 96 4.2 45.69 3.8 6.95 5.9 0 0.0 CSCILLATCRIA GEMINATA 24 1.0 3.46 0.2 0.61 0.5 0 0.0 UNIDENTIFIED FILAMENTOLC BLUE CREEPC 24 1.0 65.29 5.2 7.65 6.5 0 0.0 OItortfYCE AE 0 0.0 24 1.0 63.29 5.2 7.65 6.5 PERIDINILM INCOCPICULM 2258 1197.45 116.34 0 sat 9tE TOTALS
PHYTOPLAf0(TON STANDING CROP 11 _tottTItser 210.0 SafetE DATE: 06/09/87 TIMEt C900 DEPTHtMB 13.0 NEAN DEtGITY MEAN BIOVOLt#E BEAN ALGAL caret 96 IEAM SURFACE AREA 3 3 3 2 -3 UNITS /ML % TUTAL 70s /M Z TOTAL reuM 2 TOTAL tot oft X TUTAL 78 14.9 10.33 2.0 1.79 4.7 0 0.0 CMLtEBOPt4Y_CE AE. ACTINA$imat MANTZ*,CMII VAR. FLtNIATILE 36 6.6 1.94 0.3 0.39 1.0 0 0.0 CRUCIGENIA IllREGULARIS 12 2.2 1.62 0.3 0.29 0.7 0 0.0 CRUCIGENIA TETRAPEDIA 6 1.1 1.25 0.2 0.21 0.5 0 0.0 _GOLEDOLINIA RACIA12, 6 1.1 2.13 0.4 0.33 0.8 0 0.0 SCTN[ Dest 0JS OUADRIrasma 12 2.2 2.79 0.5 0.46 1.2 O O.0 TETRAE0mE4 REGULARE VAR. INCUS 6 1.1 0.60 0.1 0.11 0.2 0 0.0 366 70.1 407.75 01.4 26.20 69.4 0 0.0 _BACILL ARItrerYCE AE FRAGILARIA CRCitDENSIS 18 3.4 16.04 3.2 1.17 3.0 0 0.0 IELOGIRA DISTANS 18 3.4 6.18 1.2 0.56 1.4 0 0.0
#ELUSIRA GRA84JLATA 78 14.9 201.16 40.2 11.37 30.1 0 0.0 66 12.6 56.se 11.3 4.19 11.0 0 0.0
__ Meta-IRA GRAnutATA _ VAR. wilssIMA 2.06 5.4 0 0.0 MELc51RA ITALICA VAR. YuallSSIMA 42 8.0 25.86 5.1 NIT 2SCNIA NULSATICA 12 2.2 4.06 0.8 0.37 0.9 0 0.0 6 1.1 12.95 2.5 0.76 2.0 0 0.0 RMIZJ:lULEMIA SPP. 24 4.5 5.66 1.1 0.57 1.5 0 0.0 ] _STE PMANODI%tG_SPP. 0.6 0 0.0 SYNEDRA PLAfnIEPSICA 6 1.1 3.17 0.6 0.26 l SYMEDRA St# FEN 5 6 1.1 2.06 0.5 0.24 0.6 0 0.0 i SYNEoRA UUeA 6 1.1 37.91 7.5 1.72 4.5 0 0.0 ] 0.63 1.6 0 0.0
, TAGELLARIA FEDESTRATA 6 1.1 10.11 2.0 ~
66 12.6 193 5 3.8 1.83 4.8 0 0.0 I
^LMIDENTIFIE0 CENTRATE 01AltMS t#4 IDENTIFIES PEDOGATE 01ATCDG 12 2.2 5.55 1.1 0.47 1.2 0 0.0
) 6 1.1 1.31 0.2 0.22 0.5 0 0.0 e CNRYsePMvCEAE 0 0.0
" OCHROPENAS SPP. 6 1.1 1.31 0.2 0.22 0.5 12 2.2 6.05 1.2 0.91 2.4 0 0.0 CRYPT 0PatYCEAE 12 2.2 6.05 1.2 0.91 2.4 0 0.0
_CRYPYtm0NAS Epc5A i etYyUPttYCEAE 54 10.3 10.59 3.7 2.90 7.6 0 0.0 CHROUCUCC15 SPP. 24 4.5 9.90 1.9 1.54 4.0 0 0.0 ) 12 2.2 5.70 1.1 0.06 2.2 0 0.0 0 _05CILLAT_R_IA GEMINATA__ l c5CILLAicIIIA LIMMETICA 6 1.1 1.18 0.2 0.26 0.5 0 0.0 I 12 2.2 1.73 0.3 0.30 0.7 0 0.0 l LMIDENTIFIES FILAfENTERS SLUE GREENS 6 1.1 56.34 11.2 5.75 15.1 0 0.0 _0tNorNTCEAE 15.1 0 0.0 FERID1NItat SPP. 6 1.1 56.34 11.2 5.75 522 500.36 37.75 0 SafeLE TOTALS
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l _m PHYTOPLAPETON MucNG CROP II , trEATI(M:_215.8 SApFLE _C."TE: 06/09/87 TIMEt 1000 OEPTHef0: 5.0 MEAN DOCITY MEAN S10VeltME MEAN ALGAL raammi MEAN SURFACE AREA 3 3 3 2 -3 (MITS/ML Z T GT A* 996 /M Z TUTAL fErM Z TUTAL ITt an Z TOTAL Cata=OPwvCEAE 360 25.4 522 7 12.1 S.96 1s.5 e 0.o ACTINASTHLM MagfTZSCMIX VAR. FLINIATILE 192 13.5 10.38 2.4 2.19 4.3 0 0.0 48 3.3 13.08 3.0 2.14 4.4 0 0.0 CMLAMVDEMMAS 24 1.6 S.52 1.9 1.34 2.7 0 0.0 GOLEleLIMIA RASIATA 72 5.0 16.74 3.9 2.79 5.7 0 0.0 _SCEMEDE*MS_E5aAS_RI_raam 1.2 0 0.0 TROmamIn $ggggg pg 24 1.6 3.35 0.7 0.59 480 33.8 261.41 68.9 20.63 42.6 0 0.@ SACILLAstIOPtfTCE E 72 5.0 62.25 14.5 4.58 9.4 0 0.9 _fELU51mA_GaAseRATA VAR. AMGUSTI_SSIPtk 17.2 5.91 12.2 0 0.8
#ELGGIRA ITALICA VAR. TDIUISSIMA 120 S.4 74.01 24 1.6 3.60 0.8 0.40 9.8 9 0.8 NIT 2SCMIA AENITA 24 1.6 51.82 12.0 3.05 6.3 9 0.0 NNI2550LEMIA SPP.
240 16.9 69.75 16.2 6.69 13.8 0 0.0 _tMIDENTIFIES CENTRATE OIAftec 216 15.2 16.57 3.8 3.14 6.4 0 0.0 CSIRTSOPwYLEM l 96 6.7 4.24 0.9 0.88 1.8 0 S.9 I e EEULEMIA St2AE9U1 CILIATA 8* 24 1.6 5.25 1.2 S.SS 1.8 0 0.0 l OC88RCM MAS SPP. 96 6.7 7.09 1.6 1.34 2.8 O O.0 l ~LMi3E'NT F [9 CNRY3 F98YCEAE 168 11.8 20.18 4.7 3.64 7.6 0 0.0 CRYPTOPefYCE M 168 11.8 20.18 4.7 3.68 7.6 0 0.0 DNODCMMAS MItalTA 192 13.5 78.55 1s.3 11.94 24.6 o 0.0 Mne0PwfCEu o o.o l Acmwlttet euAsmisuPLICAnse 24 1.6 o.02 e.o e.oo o.O 24 1.6 9.98 2.3 1.54 3.1 0 0.0 l _CN_SPP E;CILLATORIA GEftIftATA 144 10.1 68.55 15.9 10.40 21.5 9 9.0 i 1 1416 428.78 44.35 9 SAfFLE TOTALS
PoYTtPLAgelitet STAISISS Cam' Il LStr.itmer 215.0 Safe'LE OATER e6/99/07 TIW r 1000 SEPTIHMpr _9.S MAse oENstry MEAfd SIWWELUME SEEAB8 ALGAL CAgosBI MEADS SueFACE AeEA s s s 2 -s LSetTS/ML 2 TOTAL PWI /M 2 ISTAL pWBMt 2 TSTAL 80s act 2 TUTAL CnetenaresvCEAE 152 la.6 41.66 7.2 6.27 14.s e e.e acTIsenstauM anassrzscm 1 van. etwIarrtt 24 3.s 1.3e e.2 e.2. e.6 e e.e . CastANreeMeans 12 5.6 3.26 e.5 e.5s 1.2 e s.e ! CeutzsEserA seeEeutAnzS 12 1.6 1.62 e.2 e.29 e.6 e 9.o _efesASTause_surtEx 12 1.6 19.2e 3.3 2.47 5.s e e.9 scEssteEsses s1 JUGA 36 5.0 7.92 1.3 1.35 5.1 0 9.9 scEssEeEsMus eunemICAuea 36 5.e s.36 1.4 1.39 3.2 e e.e natzttantereNCE w 444 62.7 515.es os.7 32.e1 75.s e e.o j
,o reasitansA CnevensusnS 12 1.6 ao.7e 1.s e.7a 1.s e e.e t m sutesleA Asensum 36 5.e 121.5e 21.e 6.45 15.2 e e.9 fEEtestes ERAsafLATA Waft. AfdGuSTISSIMA e4 11.4 72.61 12.5 5.35 12.6 e 0.0 ._E_tG5 IRA _ITALICA Wee. TEse#1SSIMA 129 16.9 73.95 12.7 5.91 14.0 9 9.9 PEtG51R4 SPP. 48 6.7 14.82 3.2 1.67 3.9 8 e.O paav!CULA SPP. 12 1.6 7.e4 1.2 S.56 1.3 9 S.9 DsITZscleIA PALEA 12 1.6 4.06 e.S 9.42 9.9 9 e.9
_IIIIIZ55 ELE 9EEA SPP. 12 1.6 25.91 4.4 1.52 3.6 9 e.9
SYMeat uudE 24 3.3 151.65 26.2 6.90 16.3 8 0.0 testee 9611 Fife CE00TRATE oIAftes 72 le.1 2e.92 3.6 2.90 4.7 8 9.9 toGoENTIFife MOSe&TE eIAftet5 12 1.6 5.55 9.9 9.47 1.1 9 e.S CMitVSEPIITCEat 60 8.4 4.45 9.7 9.o6 2.0 e e.S tossetesixr1Es CaesvsePONCEat 68 8.4 4.45 9.7 9.o6 2.e o e.S -
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=="metleets stEseNA 24 3.3 2.se e.4 e.52 1.2 e 0.9 g NotePWVCEAE 44 6.7 16.12 2.7 2.55 5.9 e 0.0 1 55CIttaitoIA GEtersenTA 24 3.3 11,41 1.9 1.73 4.1 9 9.9 USCILLATERIA L19esETICA 24 3.3 4.71 9.8 9.oS 1.4 e 0.0 l Sanri.E isfaLS 708 578.56 42.19 9 o
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PHYTOPLAleticN STANDING CacP II _LOCAII h 22o.e SafrLE SATES e6/09/87 TIME: 110e DEPTHEMBr e.3 MAN SENSITY REAN SItWOLLSE IEAff ALGAL rama.d IWAN SERFACE AAEA 5 5 5 2 -3 t#4XTS/ML 2 TOTAL 900 /M Z TOTAL ME/M X TEF6AL fot est Z TUTAL 16e6 15.9 ssL61 1s.6 77.21 19.o e e.e CntemorwvCEAE e.e ACTINASIWLpl feANTZsCNIX VAR. FLL'VIATILE 458 4.s 25.61 e.7 4.79 1.1 e ApellSistMEsDtf5 FALCATUS 219 2.1 14.28 e.4 2.e2 0.6 e e.e 73 e.7 254.e6 a.5 29.53 7.2 e 8.0 CSELASTAUM IUCWePOWL98 75 o.7 9.M e.s 1.76 e.4 e e.e _CauCxwNrA_zanE_aJLAerS e.s 4.es 1.s e e.e GaLEpotxNzA mAerATA 7s e.7 2s.es 75 e.7 1s.e5 e.s 2.55 e.6 e e.e stInCaosterfttA suesoLITAatA e e.e 75 e.7 2s.56 e.6 s.34 0.s msa5Txcma vrarse o e.e 75 e.7 116.64 5.9 15.M 5.7 _PEoIAsistst eUPLEX e.5 2.95 e.7 e e.e SCEDEasfRS AmenTUS VAR. SIraamaTUS 75 e.7 17.65 SCEteEeE5pa5 eIJUGA 75 e.7 16.e4 0.5 2.69 9.6 e e.e 75 e.7 10.34 e.3 1.M e.4 e 0.9 TEinAEsame mEGuteAE e e.e _TnEymmerA_sETIstates 75 e.7 me,17 S.5 1.e1 9.4 219 2.1 21.s1 e.7 4.e5 e.9 e e.e CotCore smEENs e le22 lo.1 679.52 22.7 4e.15 11.8 e e.e sACxttan1SPievCEat e o.e 146 1.4 31n36 1.e 3.25 e.7 _ACseeWTHES MCastEPetALA is e.7 so.a9 1.s 2.To e.6 e e.e NzfZsCatA ACxCuLAmis e.6 e e.e 1% 1.4 21.or e.7 2.46 se T2scurA Ass.rTA 6.e e e.e 219 2.1 472.59 1s.e 27.es nur2asetEssA sPe. e e.e 75 e.7 17.2e 9.s 2.75 e.4 _SnPuAsemascus sPP. 56s s.6 los.s1 5.5 lo.15 2.4 e e.e unneENTarIEe CENTaaft exATe s ars a.6 ss.es 1.s 11.os 2.7 e e.e CservserwvCEAE e.6 e e.e 292 2.9 12._e6 e.4 2.64 _EastENIA *J_mMMCILIATA 585 5.7 45.02 1.4 S.38 2.0 e 0.8 tseleENTIFIEe CNRY3W9FfCEAE. 73 9.7 3.M e.1 e.M o.1 e e.e XANTIICPegYCEAE e.o 75 9.7 3.64 e.1 e.M e.1 e eTCMOTteteESCCuS SPP. 2261 22.4 4%.M 14.9 71.M 17.6 e e.e CRYPitrefvCEAE 6.4 25.52 6.2 e e.S CRYPTtDatmeAS WWATA 1% 1.4 192.09 211s 21.e 2s5.76 e.5 %.32 I I.4 e e.S WestBEN4 peas ME9ENA 4250 42.e 1241.54 41.6 197.91 44.5 e e.o MrhertfVCEAf e.e e.02 e.e o S.e AGDE9EELLtst quegeleUPLICAftst 75 e.7 S.or 73 e.7 72.39 2.4 9.9s 2.4 e e.e _Assaamsen SPP. 16e4 1s.9 M6.87 22.5 105.06 25.3 e e.o CsenUUteCCts SPP. 31.57 7.7 e e.e ECCILLAftNtIA GEMEsenTA 438 4.5 2e7.99 6.9 2e42 2o.2 294.22 9.8 52.41 12.9 e 0.o tseleENTIFIES FILABE98TS85 BLIE GREEMS lee 67 29et.e6 406.01 e SApert[ TOTALS
PHYTOPLARYtD8 STANDING CROP 11 LKr.TItser 229.0 SAsqPLC BATEt 86/99/^7 TIMEt 1100 OEPirt M D: 5.0 M AN OENSITY DEAN SIOVolt3E M AN ALGAL raangst M AN StmFACE AREA 3 3 3 2 -3 LMITS/ML Z TUTAL tot /tt 2 TUTAL MG/M % TUTAL Pel est 2 TOTAL CHLOpcPNYCE M 1751 16.0 239.92 6.7 41.27 11.3 0 0.8 ACTINASTRtst NANT2. ". NIX VAR. FLtNIATILE 510 4.6 14.80 0.4 3.26 0.5 0 0.0 ANKIST9CDESMUS FAL 9TUS 345 3.3 23.30 0.6 4.71 1.2 0 0.8 CMLAMY9(FE34AS 292 2.6 79.34 2.2 12.97 3.5 0 0.8 nasctIA sa0EstnEP- 73 0.6 12.4e o.3 2.16 s.5 0 e.0 GOLDeLIMIA AAwamTA 1% 1.3 51.76 ?,.4 S.17 2.2 0 0.9 SCE8E9E2485 EDJAORICAUSA 73 0.6 16.93 0.4 2.82 0.7 0 0.0 SELENASTNUM MINUTWI 73 0.6 4.89 0.1 0.96 0.2 0 0.0 TETwAEsacN CAuoAnst vAm. tesestsPINuM 73 0.6 1s.66 o.5 3.07 e.o e o.O imEtmAmIA sETIsEstst 73 0.6 10.17 o.2 1.el e.4 0 o.o COctJIo saEDe5 73 o.6 7.17 e.2 1.34 e.3 o 0.o sACIttaale ,NvCE M 2535 21.3 2212M 2 62.4 136.93 37.7 0 0.0 MEtOSIsA seP. 73 0.6 2s.5s e.e 2.54 e.7 e e.o NAVICULA EXIC04 73 0.6 41.15 1.1 3.39 8.9 0.0 NITZSCMIA AENITA 292 2.6 43.75 1.2 4.92 1.3 9 e.9 W _NIZFALENI A SPP. 365 3.3 787.17 22.2 46.47 12.8 0 0.0 STEPseANODISCL*", SPP. 219 2.0 51.64 1.4 5.2e 1.4 0 0.0 SYMESRA UUen 146 1.3 921.16 25.9 41.93 11.5 0 0.0 O LMIENTIFIES CENTRATE SIATtWE5 1167 10.6 338.54 9.5 32.44 8.9 0 0.C N CMRY*AP98Yte M 1896 17.3 83.57 2.3 17.44 4.8 8 0.8 C55LENIA '2ERAF4EJICILIATA 1896 17.3 83.57 2.3 17.44 4.s 0 0.0 XANTlatyttYCEM 73 0.6 3.64 0.1 0.74 0.2 0 0.0
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C - i Bi Ngygpict rmt $PP. 75 0.6 3.64 e.1 S.7% 0.2 0 0.0 CRTPitFNYCE M 1750 15.9 265.99 7.5 46.to 12.7 0 0.9 CRYPTtMSeAS Ew.A 144 1.3 73.48 2.0 11.06 3.0 e o.O
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RHODEM 9US M194[TA 1604 14.6 192.50 5.4 35.14 9.6 0 0.0 efoXFesTCE M 3136 28.6 737.20 29.5 119.97 33.9 0 0.9 CMm0000CCUS SPP. 802 7.3 333.43 9.4 51.53 14.2 0 0.0 21.oS
~ ^ flILLAIORIA t GEM 19eATA 292 2.6 134.67 3.9 5.8 0 0.0 UNIDENTIFIES f8FNIS DLUE GaEENS 219 2.0 2.4e 0.9 8.69 0.1 9 0.0 LMIENTIFIES FILAfENTE85 SLUE GREEe6 1823 16.6 262.69 7.4 46.79 12.9 e e.o SAMPLE TOTALS 10941 3542.94 3A2.55 e
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PHYTOPLAmitM MTAfe1NG CROP II 1CM T!982 220.0 E SATE 06/09/0F TIME: 1196 SEPTHIMI: D.O MAN DENSITY MM SImCLUME MAN ALGAL CAfSWI MM SURFACE AREA 3 3 3 2 -3 LMITS/ML % TOTAL let /M 2 TUTAL ME/M Z TOTAL ffi en % 76TAL _CwtoROPHYCEAE 288 27.2 41,72 18 7.04 19.6 e e.9 ACTIMASTMM hANTZSCMII VAR. FLUVIATILE 96 9.9 5.19 1.4 1.e5 2.9 9 9.9 AE ISTRODESMUS FALCATUS 48 4.5 3.14 0.8 8.62 1.7 8 9.9 COELASTRUM SPP. 24 2.2 16.19 4.5 2.33 6.5 0 0.9 KIPCHNERIELLA LtMARIS VAR. SIANAE 24 2.2 4.62 1.3 e.79 2.2 e S.e
~2kNEDE5MUS " QUAsitjFasma 24 2.2 5.57 1.5 e.t3 2.5 e S.e COCCUID GREENS 77 6.8 7.09 2.e 1.32 3.6 e e.9
_BACILLARIOPHYCE_AE 594 47.7 268.18 75.9 21.64 60.4 e 9.e ACNNANTHES MICROCEPMALA 96 9.9 29.67 5.8 2.13 5.9 9 9.9 MELD 5 IRA GRApeJLATA VAR. ANGUSTISSIMA 168 15.9 145.22 41.1 19.79 29.9 e e.e MELOGIRA ITALICA VAR. TEpATISSIt'A 72 6.9 44.39 12.5 3.55 9.9 0 9.e _HITZ* f MIA_ M TA 24 7.2 3.6e 1.s e.40 1.1 0 9.9 LMIDENTIFIED CENTRATE SIATERt3 72 6.8 29.92 5.9 2.ee 5.5 e S.e LMISENTIFIES PE884 ATE RIAftpts 72 6.8 33.38 9.4 2.06 7.9 e S.e _CHRYtoPwYCtAE 72 6.8 5.32 1.5 1.e3 2.s e e.S LMIDt:4TIrIES CMaYsePwYCEAE 72 6.s s.32 1.5 1.e3 2.8 c e.e to CRYPTOPHYCEAE 48 4.5 5.77 1.6 1.e5 2.9 e 0.9 W RHODOMONAS MIDRITA 48 4.5 5.77 1.6 1.e5 2.9 e 0.9 MYXUPHYCEAE 1% 13.6 32.29 9.1 5.01 14.0 9 9.9 CnRoetoCCuS sPP. 48 4.5 2e 9a 5.6 3.e9 S.6 e e.e _05CILLATORIA_GEMINATA 24 2.2 11.41 . 3. 2 1.75 4.0 e 0.9 LMIDENTIFIED COCCUIS SLUE GetEENS 72 6.8 0.79 0.2 e.19 0.5 e e.e SANPLE TOTALS 1956 353.18 35.77 0 l l l l 1
PHYTCPLAFETO4 STANDItC CROP II LOCATIO4: 210.0 SAPPLE DATES 07/14/87 TIME: 0900 DEPTHfMI: 0.3 PEAtt DEtGITY MEAN SIOVULt21E PEAN ALGAL CAR 804 fEAN SURFACE AREA 3 3 3 2 -3 tFEITS/ML % TOTAL tti /M Z TUTAL F1G/P1 % TOTAL ret *M % TUTAL CHt0ROPHyCEAE 2261 20.9 514.55 11.9 83.53 15.4 0 0.0 ACTINASTRUM HANT2SCHII VAR. F LLNI AT11 E 73 0.6 3.94 0.0 0.79 0.1 0 0.0 AtFISTRODESMUS TALCATIS 219 2.0 14.28 0.5 2.82 G.5 0 0.0 CHLAMYDOTRIAS 729 6.7 198.34 4.5 32.44 5.9 0 0.0 73 0.6 25.88 0.5 4.08 0.7 0 0.0 _ Gulf?5IN.IA RADIATA 1.5 0 0.0 PLAtETOSPHAERIA CELATINOSA 219 2.0 49.14 1.1 8.24 SC[N[DESttS DENTICULATUS 73 0.6 65.69 1.5 9.15 1.6 0 0.0 SCENEDE$tt$ QUADRICAUDA 73 0.6 16.93 0.3 2.82 0.5 0 0.0 SCHRUEDERIA SETICERA 73 0.6 19.41 0.4 3.18 0.5 0 0.0 73 0.6 4.89 0.1 0.96 0.1 0 0.0 SELENASTRLF1 MitATT121 STAUCSTRUM PARADC)171 73 0.6 58.68 1.3 8.30 1.5 0 0.0 583 5.4 57.37 1.3 10.75 1.9 0 0.0 0000010 CstitG a 2626 24.3 1408.09 32.5 109.51 20.2 0 0.0 [ 8ACILLARIOPHYCEAE ACl#4ANTHES fflCROCEPHALA 73 0.6 15.68 0.3 1.61 0.2 0 0.0 438 4.0 377.74 8.7 27.8% 5.1 0 0.0 MELUSIRA CRAtAJLATA VAR. Ata2STISSIMA 219 2.0 472.39 10.9 27.88 5.1 0 0.0 _Rf1I2tEUL ENT A_SPP 0.6 0 0.0 ST[PHANODISCtG Sh . 146 1.5 34.41 0.7 3.47 1750 16.2 507.88 11.7 48.72 9.0 0 0.0 t#4IDENTIFIE0 CENTRATE DIATOG 418 4.0 77.58 1.7 12.54 2.3 0 0.0 _CHRySOPHYCE AE 73 0.6 50.69 1.1 7.31 1.3 J 0.0 t1 ALLO 104AS TOGURAT A 365 3.3 26.89 0.6 5.23 0.9 0 0.0 LA4IDENTIFIE0 CHRYSOPtfYCEAE 146 0.4 3.26 0.6 0 0.0 XANTHOPHYLEAE 1. 3 __ _17.93 _ 146 1.3 17.93 0.4 3.26 0.6 0 0.0 DICHOTO1000CCtG SPP. 1604 14.8 1069.75 24.7 146.83 27.1 0 0.0 CRYPTOPHYCEAE 729 6.7 964.75 22.3 127.67 23.5 0 0.0 CRYPICMCt4AS UVATA 875 8.1 105.00 2.4 19.16 3.5 0 0.0 RHUDO104AS MitAJTA PfYXCPtfyCEAE 3647 33.7 1042.29 24.1 162.20 29.9 0 0.0 219 2.0 0.22 0.0 0.07 0.0 0 0.0 _iO1EtJEtt_UM QUADRIDUPLICATtD1 2.5 14.25 2.6 0 0.0 A14ABAINA SPIRUIDES 73 0.6 109.35 1896 17.5 768.13 18.2 121.80 22.5 0 0.0 CHROUCOCCtG SPP. C,CILLATORIA LIff4ETICA 365 3.3 71.53 1.6 12.22 2.2 0 0.0 583 5.4 57.76 1.3 10.81 1.9 0 0.0 RAPHIDIOPSIS_CURVATA 1.20 (' . 2 0 0.0 tR41DTNTIFIE0 0000010 SLUE CREEPG 438 4.0 4.80 0.1 73 0.6 10.50 0.2 1.87 0.3 0 0.0 t#4IDENTIFIE0 FILAFENT0t5 8LUE GREEPG 73 0.6 192.24 4.4 _23J 9 4.2 0 0.0 _DINOPityCE AE 0 0.0 73 0.6 192.24 4.4 23.19 4.2 PERIDINIUM INCOGPICtAR1 10795 4322.41 541.06 0 SAtfLE TUTALS
PHYTOPLAPET34 5TAta)1NG CROP 11 LOC A T. I O4L217.n SAPPLE D ATE : C7/14C 7 TIMER 0900 DEPTHIMI: 17.0 PE AN DEPCITY MEAN BIOVOLLRT f(AN ALCAL CARBG4 MEAN SURFACE AREA 3 3 3 2 -5 LR41T *.JML % IUTAL tti /M Z TUTAL NG/M Z TUTAL fTt oft X TUTAL _CHL.UROPHYCE AE 224 31.1 96.07 20.8 15.85 31.8 0 0.0 _JINA0iptM HANIZSCHIl VAR. FLtJVlaTILE 16 2.2 2.93 0.6 0.50 1.1 0 0.0 AtEISTRODEstin FALCATtG 40 5.5 2.62 0.5 0.51 1.1 0 0.0 CHLAMYDG1CR4AS 32 4.4 8.70 1.8 1.42 3.2 0 0.0 _CUSrtARILM T[NUE 8 1.1 4.16 0.9 0.62 1.4 0 0.0 GOLEtEIWIA RADIATA 16 2.2 5.68 1.2 0.89 2.0 0 0.0 PAF4DURINA P90pUM 8 1.1 23.97 5.1 2.84 6.5 0 0.0 SCitEDISitC BIJUGA 8 1.1 1.76 0.3 0.29 0.6 0 0.0 f.CftEDESitM_DfMTICULATUS 32 4.4 28.84 6.2 4.01 9.2 0 0.0 SCLIEDE'11LG QUADRICAUDA 52 4.4 7.41 1.6 1.24 2.8 0 00 SCHRUEDERIA SETICERA 8 1.1 2.13 0.4 0.34 0.7 0 0.0 3 SPHAEP0705ttA CRAt41 LATA 8 8 1.1 1.52 0.2 1.2 0.23 0.82 0.5 1.8 0 0 0.0 0.0 HESTELLA_LItEARIS 1.1 5.75 0000010 GREftG S 1.1 0.79 0.1 0.14 0.3 0 0.0 BACILLARIOPHYCEAE 152 48.8 292.60 63.4 19.19 44.0 0 0.0 _8 1.1 1.25 0.2 0.15 0.2 0 0.0
.__ACINANTHf5 SPP.
PE LUSIR A CR AtAJL AT A 48 6.6 124.05 26.9 7.01 16 1 0 0.0 t1E LUSIRA CRAPAJLATA VAR. ANGUSTISSIttA 40 5.5 34.62 7.5 2.55 5.8 0 0.0 NITZSCHIA HCFLSATICA 64 8.8 21.79 4.7 2.01 4.6 0 0.0 8 1.1 17.27 3.7 1.31 2.3 0 0.0 _PHT2000tFNIA SPP.
".#.E LE1GEttA PUT AP105 40 5.5 2.15 0.4 0.31 0.7 0 0.0 STEPHAN0 DISC 15 SPP. 24 3.3 5.66 1.2 0.57 1.3 0 0.0 SYtKDRA tJLNA 8 1.1 50.54 10.9 2.50 5.2 0 0.0
_ tJNIDf MTIFIE0_ CENTRA _TE_DI A_ TOG 96 15.3 27.89 6.0 2.67 6.1 0 0.0 LNIDENIIFIED Pit #4 ATE DIATOG 16 2.2 7.41 1.6 0.65 1.4 0 0.0 CHRYSOPHYCEAE 16 2.2 1.18 0.2 0.22 0.5 0 0.0 tail _DfNTIFIED CHRYSOPM'(CEAE 16 2.2 1.18 0.2 0.22 0.5 0 0.0 XANTHOrtfYCEAE 8 1.1 0.90 0.1 0.16 0.3 0 0.0 D101807010000Ctc SPP. 8 1.1 0.90 0.1 0.16 0.3 0 0.0 U UTUPHYCEAE 24 3.3 31.75 6.8 4.20 9.6 0 0.0 CRYPIOMONAS UVATA 24 3.3 31.75 6.P 4.20 9.6 0 0.0
-ff(XOPHYCE AE 96 13.3 38.54 8.5 _ 5.90 13.5 0 0.0 AGF1[tdLLLM QUADRIDUPLICAftM 8 1.1 0.01 0.0 0.00 0.0 0 0.0 CHR00000Ctc SPP. 56 7.7 25.32 5.0 3.60 8.2 0 0.0 USCILLATORIA CEMINATA 32 4.4 15.21 3.2 2.30 5.2 0 0.0 SAMPtE TUTAtS 720 461.05 45.52 0
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= . PhT10PLANTON STANDING CROP II LOCATIO N 1210.0 SAfrLE DATE: 07/14/87 TI 0900 DEPTHfMir 5.0 MEm oEN:Irv MEAN SItFWOLLSEE MEAN ALGAL r m M AN sumEACE AgEA 3 3 3 2 -3 UNITS /ML % TOTAL 991/M % ISTAL MCMS 2 TUTAL 896 eM 2 TSTAL CHLORUPHYCE E 1$79 20.7 294.28 11.6 50.33 16.3 0 9.9 _ 146 3.8 9.52 0.3 1.88 S.6 9 9.9 AP8(ISTRUDELPGJS FALCATUS 1% 1.8 39.64 1.5 6.44 2.1 0 S.9 CHLAfffDEMt90AS 73 9.9 9.84 e.3 1.76 8.5 8 0.8 CRUCIGENI A 1RREGULAR15 73 c.9 25.88 1.9 4.98 1.3 0 9.9 _GULE94tINIA_RAOIATA 1.8 9 9.9 ME50STIQth VIRIDE 146 1.8 33.68 1.5 5.63 73 8.9 16.37 9.6 2.74 S.S O 9.0 PLANTUSPHAERIA GELAT19E554 sCtNEoEsMuS auneRIras- 73 o.9 16.93 e.6 2.82 e.9 e o.e 73 o.9 19.41 e.7 3.18 1.e e e.o _"CnRaE oERI A_st rIGEnA e.96 e.3 e e.e sELENAsiasse MItamai 73 e.9 4.e9 e.1 SELENASTRUPt 945TII 219 2.7 49.89 1.9 S.35 2.7 9 8.9 73 0.9 12.94 S.4 2.19 S.6 9 9.0 SPMAEROZ55 Pts GItANLfLATA
" TREURARIA SETIGEWLM 1% 1.8 20.34 9.8 3.63 1.1 9 9.9 _ ~ ~COC00IO 'GNEEUS~ 345 4.5 35785 1.4 6.72 2.1 e e.e 2626 32.4 1129.02 44.8 91.31 29.6 e 0.9 BACILLARIOPNY~EAE 219 2.7 472.39 18.7 27.88 9.9 9 S.O
__RHIZUSOLEte! A_SPP. 1.12 9.3 0 9.9 srf tt10NtMA PUTAMOS 146 1.8 7.81 9.3 365 4.5 86.05 3.4 S.67 2.8 9 0.9 STEPHAN0 DISCUS SPP. uMIstNTIrrts CrmeATE sIATaM3 1823 22.5 529.93 21.o Es.75 16.4 e o.s 73 0.9 33.75 1.3 2.89 9.9 e 0.9 _ _ _ _tDe_I_DE NTI FIE D _ PE DOGATE SI ATt945 CHRv:cenrCEAE 729 9.e s3.77 2.T lo.47 3.3 e o.a 729 9.9 53.77 2.1 19.47 3.3 8 9.s UNIDENTIFIES CNRYSEP9fvCEAE 219 2.7 24.72 S.9 4.54 1.4 9 9.9 xANinapuvCtAE 219 2.7 24.72 8.9 4.96 1.4 S S.4 OICHUltpWEEECUS SPP. 64 65 19.6 9 9.tP, CRYPTOPHYCE AE 738 9.9 43SJ2 17.4 292 3.6 385.52 15.3 51.87 16.5 9 9.8 CRYPit94t90AS OVATA 438 5.4 52.5e 2.0 9.58 3.1 0 9.9 RHODEDtt9445 MISGJTA 2116 26.1 57s.67 22.9 98.75 29.4 e 0.9 MYXOPNYCEAE Apt fELLLN189uAeRIOLPLICATtst 146 1.5 9.14 9.9 9.95 9.9 e 8.0 1313 16.2 545.65 21.6 84.33 27.3 e e.e CHROUCOCCUS SPP. 9 S.S 292 3.6 28.88 1.1 5.40 1.7 RAPHIDIOPSIS C1mVATA t#4ID(NTIFIED CSCCSIB SLUE GAEENS 365 4.5 4.00 0.1 1.98 9.3 8 8.9
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PHY1tPLAfsLitB6 fTAsettaB Catr 11 LOCafftps: 227.0 Sasett! SATES 07/14/e7 TIN: e9ee SEPTMtM9t 13.9 i
! DEA 88 K95ITY fEAf6 310WUlt#E Ptafe AleAL CAIWSE SEA 88 StWFACE AREA l 5 s s 2 -s teeITS/ML Z TOTAL tot /M X TUTAL NG/Tl X TOTAL 300 en X TUTAL CMLONOPHYCEAE 2ee 27.2 67.b4 19.2 le.71 24.s e e.e l ' ANKI55 RODE 24Lfs FALCATis 48~ T5 3.51 S.8 9.62 1.4 e 0.9 CHLAMYesttBeAS 4e 4.5 13.06 s.7 2.11 4.. 9 0.0 FRANCEIA e#0ESCleERI 24 2.2 4.Se 1.1 . 71 1.6 8 9.9 LACEsMcEIMI A tteeG15 ETA 22 1.1 1.e4 S.5 e,32 C.7 9 e.9 i ' PEDI ASTM 94 MlX 12 1.1 19.2e 5.4 2.47 5.4 e e.e ) SCENEDESPts GUAe91 Cama 84 y,9 19.51 5.5 s.26 7.4 e e.e ! SELENASTRUpt MISSJTUpt 24 2.2 1.61 S.4 e.51 0.7 0 0.0
_SELCMSTpurt seESTII 12 1.1 2.74 e.7 9.45_ 1.e e G.o CetCole wwEses 24 2.2 2.56 e.6 e.44 1.e e o.a BACILLA#IOPHYCEAE 156 s1.8 147.26 41.9 11.?2 27.1 e e.S _ACHNANTMES_MICagrgPetALA 12 1.1 2.58 e.7 e.26 9.5 e 0.9 reAcILAmIA Caeresstessis 36 5.4 52.99 9.1 2.54 5.s e e.o 91ELO51RA ENtaf8JLATA VAft. AfGESTISSIMA 24 2.2 2. 72 5.9 1.52 5.4 e e.e 4 NITZLCHIA ACICULARIS 12 1.1 5.98 1.4 8.44 1.9 e S.e , _aMI7tr,mleNIA ser. 12 1.1 25g 7.5 1.52 s.4 e e.e . setELETONEMA POTAMt5 6e 5.6 s.22 0.9 e.46 1.e e 0.9 sYwtonA ser. 56 s.4 15.e5 4.5 1.sr s.1 e e.e
i. o e e.e I w UNIDENTIFIE. CENTRATE .IAftet5 144 11.6 41. 2 11.9 4.91 9.1 I
CMstVTAF9fYCkAE 12 1.1 e.Se o.2 e.17 c.s e 0.9 194IDtnTIr2Ee CNRYSSPtfVCEAE 12 1.1 9.8e e.2 S.17 9.s e 0.9 FANTMOPHYCEAE 24 2.2 2.69 e,7 e.49 1.1 e e.e
'e5ClegibamM SPP. 24 2.2 2.69 9.7 0.49 1.1 e e.e CRYPTCPMYCEAE 48 4.5 29.19 5.7 2.8e 6.5 e e.e
_Cnyriteenpens_ovAT A 12 1.1 15.es 4.5 2,1s 4.7 e e.e sucesionens MisanA 36 3.4 4.52 1.2 e.78 1.7 e e.e j mneMYCEAE 54. 32., . 112.6s 32.. 17.76 4. 4 . e ...
e e.e CMa00 Coccus SPP. 96 9.e 59.95 II.s 6.17 14.9 LYNGe*5 GCMUACEA se s.4 s.4s 0.9 e.64 1.4 e 0.9 m Itu 10.IA e, TA ,6 ,.. 45.A, 1s.. 6. ,s 15.7 . ...
1 129 11.5 21.56 6.7 4.o2 9.1 e 0.9 OLCILLATORIA L19esETICA i i te56 551.19 41.9s 0 J _0APPI E TUTALS l 1 i 2 i i
_m . ___ _ _ _ _ _ _ _ _ _ _ _ . - - . . _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ . _ _ _ _ _ _ _ _ _ _ i PHTTtFLAfETEM STANSING CROP II L E AIItDes 215.0 SAsFLt DATE: e7/14/07 tim 10ee eEPTHI M I: 0.5 MEAn stusITY mAm slowottes m Am AlsAL ra==ses nEAu suarAct AnEA s s s 2 -s UNIT 3/ML Z TOTAL ret /M % 15tAL MG/M Z TOTAL #et sol % TOTAL I catasapavetat 1s24 Ts.5 471g2 11.s 74.s6 15.o e e.o l ACTINA5ffEft NANT25CNIX VAR. FLUVIATILE 292 s.7 15.75 8.s 5.2e 0.6 e e.e j
.4 178.51 4.1 2 ,.2e 5.. . ...
c- - .56 e.5 e e.e KIWCHNERIELLA enum TTAAIA 75 S.9 15.es S.s 2.55 1
75 e.9 21.58 8.5 s.49 e.7 e e.e 1 MESU5TIGMA VIRIst ~e e.e 0 'NDIA5T8UM MPLtX 75 e.9 116764 2.7 15.e4 5.e SCENE 9Estess eutselrasma 4ss 5.6 103.59 2.s 16.97 s.4 e e.e i ... sf u,.As1.u MI.Amm is .., 4.., .1 ..M .1 . i 1REtmARIA ".KTIEtsReg 7s e.9 le.17 e.2 lost e.s e e.e i 75 8., e.1 1.34 e.2 e e.e iacCole siums 7.17 sA.IuAnzia wycEAE 1ss2 19.s 14ee.e5 34.s 95.64 19.3 e e.6 292 s.7 752.29 17,6 42.s4 S.5 e e.e _ME L,OSIRA_m. Raft #LAT A e e.e MIT2LCMIA AEpe1TA 292 s.7 4s.75 1.8 4.92 e.9 219 2.8 472.59 11.1 27.88 5.6 e e.o
#8822050LEMIA Ser. e 9.e 729 9.4 211.61 4.9 29.se 4.9 LS4IDENTIFIEe cENTitATE eIATiet5 6
SIe 6.5 s7.64 e.e 7.ss 1.4 e e.e cuersarwrCru e e.o tmeretuTIr2Ee curvSerwvctAt Sie 6.5 37.64 e.s 7.33 1.4
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' csTriernyctAt e 0.8 729 9.4 964.7s 72.6 127.67 75.7 o JRYrit9EtteAS_EPrATA ese 5.6 52.se 1.2 9.ss 1.9 e e.e
anesessens meana 24ee 31.1 765.e5 17.9 12e.s5 24.2 e e.e nymravcEAt 1ses 17.9 575.95 15.5 o9.e1 17.9 e e.e l
_capontattus ser. 7s e.9 6.95 e.1 1.se e.2 . e e.e j LvwcavA atumatta 25.75 e.6 4.4 e.? e e.o 146 1.8 tynsavA srzeutEsseIscs 292 s.7 16.41 e.s 3.51 e.6 e e.o tvisava ser. 219 2.8 le4.o2 2.4 15.78 s.1 e e.o _osC ritsfonI A_eEnI_ NATA 75 e.9 14.sC e.s 2. 4 e.4 e e.e ULCILLAltEllA L10eETICA 219 2.5 21.66 S.5 4.e5 e.S S o.e ReettleIOPSIS C4fRWATA 75 e.9 108.15 4.4 22J 6 4.s e 9.o EUCLEtegrWVCEAE 4.5 e 0.9 7s e.9 18e.15 4.4 22.76 1pACMELt99tpens wcLwtElsen 269.54 6.3 34.11 6.8 e 0.8 CMLOptettBeaetrefvetAt 1% 1.s e e.e
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PHYTCPLAIREO4 ST AF4DitG CROP 11 TIFEL1000 OfPTHf 'It 9.0 I fR'CI ige r 215.0 'MLE_DATE r CT/14/87 tEAN DENSITY PE AN BIOVOtt#1E PEAN ALCAL CAABG4 PE AN SURTACE AREA 3 2 -3 3_3 PE/M % TOTAL Z TUTAL tR4115/t1L 2 TUTAL PM /M % IUTAL PM *tt 18.9 126.39 14.9 20.38 19.7 0 0.0 CHt0RUPMYCTAE 526 1.57 0.1 0.31 0.2 0 0.0 APRISIROD10MUS F ALCATU'. 24 0.8 13.08 1.5 2.14 2.0 0 0.0 Ctft ANYDO1C7415 48 1.T 0.8 4.08 0.4 0.71 0.6 0 0.0 FRANC [1A DRotLCHtRI 24 7.27 0.8 1.17 1.1 0 0.0 24 0.8 _ COL (PEINIA_PAUCISPINA 13.51 1.5 2.00 1.9 0 0.0 SCIPEDELt95 ACIMINATUS 24 0.8 0.8 5.81 0.6 0.96 0.9 0 0.0 SCttKDESMUS ARNATUS VAR. BICAUO7!ts 24 10.58 1.2 1.78 1.7 0 0.0 SCt rKDESMLC BI.REA 48 1.7 2.5 3.01 2.9 0 0.0 SCf tKDtSt9M "#.NTICULATUS 24 0.8 21.63 16.74 1.9 2.79 2.6 0 0.0 j LCtfEDist9M ULa.DRICAUDA 72 2.5 24 0.8 1.61 0.1 0.31 0.2 0 0.0 j SELE NA0187UPt NItaffUPt 1.80 1.7 0 0.0 j 24 0.8 11.97 1.4 ST AtstASTRtM 1ETRACE RtM 0.75 07 0 0.0 24 0.8 4.37 _ O.5 l _ 7 t 1 R AE DRG4_CAUD ATUPt 14.18 1.6 2.65 2.5 0 0.0 CUCCOIO GRfIFG 144 5.1 412.46 48.6 34.45 33.2 0 0.0 BACILLARIUPIEYCE AE 936 33.6 1.8 1.59 1.5 0 0.0 ACHttAr81Ht3 MICROttPHAtA 72 2.5 15.51 19.39 .2 1.89 1.8 0 0.0 CVCLOftLLA LPP. 72 2.5 42.87 5.0 3.13 3.0 0 0.0 TRAGILARIA CRU10tKpC15 48 1.7 62.25 7.3 4.58 4.4 0 0.0 ME LU51RA CR APRJLJtT A VAR. AF4GIET155Itu T2 2.5 6.0 71.27 8.4 6.25 6.0 0 0.0 168 { y _t4ITZ5 CHIA _ACICULARIS er:2LCHI A AmITs. 48 1.7 7.21 0.8 0.81 0.7 0 0 0.0 0.0 96 3.4 32.66 3.8 3.01 2.9
#4ITZSCttI A is0LSATICA 1.1 0.85 0.8 0.0 24 0.8 9.72 NITZSCHIA PAttA 0.8 0 0.0 24 0.8 10.37 IJ 0.90
_t41T25 CHIA _ OPP. 0.8 51.82 6.1 3.05 2.9 0 0.0 RMIZUSCLLMIA N'P. 24 11.35 1.3 1.14 1.1 0 0.0 SitPHA;F3DISCtG SPP. 48
1.7 6.5 5.35 5.1 0 G.0 192 6.8 55.78 tA41btMTIFIED CEffiRATE OIATOPS 22.27 2.6 1.90 1.8 0 0.0 48 1.7 tr410tnTIrIf 0_PttawTE_01 ATOPc 2.2 3.64 3.5 0 0.0 CHRYOUPHYCEAE 216 7.7 19.42 0.0 5.25 0.6 0.88 0.8 0 GCHRG1aNAS SPP.
24 0.8 0.0 6.8 14.17 1.6 2.76 2.6 0 192 tR41DENTIF15'O CttRY"APHVCT AE 3.56 0.4 0.75 0.7 0 0.0 y_ANiss0PwvCE At 96 3.4 3.56 0.s 0.75 0.7 0 0.0 96 3.4 DICHUnatuxOtCuS :PP. 48.43 5.7 7.29 7.0 0 0.0 f.RvP 0PHyttAt 96 3.4 48.43 5.7 7.29 7.0 0 0.0 96 3.4 CRvPv0 Mar:As ERenA 237.21 35.7 0 0.0 att 32.7 27.9 362 2 MYv0PH.C'st 42.e4 5.0 5.44 5.2 0 0.0 24 9.8 AnAeAtNA ms.OcIrKrct 48 1.7 0.70 0.0 0.16 0.1 0 0.0 CHROOCOCCtG LIF9ETICin 137.A4 16.5 21.61 20.8 0 0.0 CHRG300CCtF1 SPP. 334 12.0 0 0.0 168 6.0 9.46 1.1 1.91 1.8 LYNGBYA LPP. 18.8% 2.2 3.22 3.1 0 0.0 96 3.4 05CILL A10RI A L179EllCA 6.0 24.75 2.9 4.39 4.2 0 0.0 RAPHIOI0PLIS CURYATA 168 0.0 2.5 0.79 0.0 0.19 0.1 0 72 LA41DfMTIFIt0 00CCUID SLLE CatEttc
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PHYTG*LAPETG4 CTAFCING CROP 11 T171E _1100 DEPT _ Mig _f 0.3 10C[_f !ON :_220.0
M LE DATE: r7/14/87 ._. -_
tW AN OttCITY PfAN BIC#0 LIFE PEAN ALGAL CAPSO4 tEAN SLA>f ACE AREA 3 3 3 2 -3 t#4ITS/r1 Z TUTAL fft /tt Z TUTAL PE/tt 2 TOTAL 791 ott Z TUTAL 751.35 12.1 125.75 15.4 0 0.0 CHinRtw: Ytr Ar_ 35+r 18._9 0 0.0 127 0.6 10.38 0.1 1.99 0.2 Afst ISIpG4*J13S SPIRALLIS 0 0.0 1012 5.4 275.17 4.4 45.04 5.5 CHLAMfDOMt24AS 1.3 0 0.0 380 2.0 65.04 1.0 11.32 CHLOROGO41LF1 SPIRALE 0.4 0 0.0 IZT O.6 21.51 0.3 3.75 _FRAtKEIA_DROLSCHtfTI 0.6 38.36 0.6 6.18 0.7 0 0.0 fXFLf fA I*dI A PAUCISPINA 12T 44.94 0.7 7.09 0.8 0 0.0 GOLita.1NIA RADIATA 127 0.6 0.8 7.90 0.9 0 0.0 PK'I40f!GttA VIRIDE 127 0.6 50.89 5.08 0.6 0 c.0 SctNrDtStts ARMAnn VAR. SICAuDArts 127 0.6 3032 0.4 0 0.0 380 2.0 88.1T 1.4 14.73 1.8
$0LtEDf SFSJS QUADRICAUDA 5.53 0.6 0 0.0 SCHROEDtpIA SETICtRA 127 0.6 53.71 0.5 O.6 17.66 0.2 3.15 0.3 0 0.0 TRitBARI A SETICERtF1 12T 74.66 1.2 13.99 3.7 0 0.0 759 4.0 .O o --C0C00_10 CRitPG.-
1516.75 24.4 136.73 16.T O O.0 S ACILL ARIortiVCE AE 4937 26.3 7.0 46.3 T 5.6 0 0.0 CYCLUTELLA SPP. 2278 12.1 43F.36 l 1.8 8.25 1.0 0 0.0 127 0.6 112.84 l _FRACILARIA_CRUTOEtCI*. 127 0.6 53.64 0.8 4.69 0.5 0 0.0 ' i NIf2SCHIA ACICULARIS 1.7 9.52 1.1 0 0.0 NITZSCHIA SPP. 253 1.3 109.34 273.33 4.4 16.13 1.9 0 0.0 RMIZtE.0 Lit 41 A SPP. 127 0.6 0.97 0.1 0 0.0 _SettETGuMA_PUTAMOS 127 0.6 6M8 OA 0 0.0 506 2.7 119.46 1.9 12.04 1.4 STEPitAtKFDISCUS SPP. 6.5 38.76 4.7 0 0.0 1592 7.4 403.99 LA4 IDENTIFIED CTNIRATE DIAT& G 234.06 't . 7 39.48 4.8 0 0.0 CHRY'X)PHfCT AE I645 8.7 0 0.0 253 1.3 11.16 0.1 2.32 0.2 ERFENIA SLEAEQUICILIATA 9.32 1.1 0 0.0 OtuROMtDaAS SPP. 253 1.3 55.33 0.s 92.92 1.4 13.30 1.6 0 0.0 UROGLEHOPSIS APERICANA 127 0.6 j 74.65 1.2 14.54 1.7 0 0.0 1012 5.4 l _LP4.I_Df NTIF IT D_CMRY"./PHYCE AE 69.49 '1 11.98 1.4 0 0.0 XANfHOPHYCfAE 380 2.0 69.49 1.1 11.98 1.4 0 0.0 DICHUTG1000CCUS SPP. 380 2.0 937.01 15.1 131.31 16.1 0 0.0 UrypicrifvCEAE 1519 8.1 191.37 3.0 28.82 3.5 0 0.0 CRYPIG924AS ERUSA 380 2.0 669.10 10.8 88.63 10.8 0 0.0 506 2.7 CRYPIOP10P4AS OVATA 13.86 1.6 0 0.0 633 3.3 75. ',4 1.2 RHODOMOP4AS MItaff A 1399.44 22.5 224.17 27.4 0 0.0 trykDPefYCt AE 6330 33.7 0.0 0.38 0.0 0.13 0.0 0 AGMttKLLUM QUADRIDUPLICATUPt 380 2.0 1.84 0.0 0.44 0.0 _0 0.0 127 0. 6_ _CHR0000CCtn lit 9ETICUS 171.55 2.7 28.07 1.4 0 0.0 CHROGCOCCtJC PRC'A UTIf 633 3.3 946.92 15.2 146.35 17.9 0 0.0 03fR00 COCCUS SPP. 2278 12.1 0.0 14.24 0.2 2.8T 0.3 0 253 1.3 LYHGBYA SPP. 60.19 0.9 9.13 1.1 0 0.0 177 0.6 F.CILL ATORI A CTMINAT A 24.84 0.4 9.24 0.5 0 0.0 127 0.6 0'EILLAIORIA LIF9EIICA 74.41 1.2 13.21 1.6 0 0.0 RAPHIDIOPSIS CURVATA 506 2.7 13.90 0.2 3.49 0.4 0 0.0 (NIDENTIFIED CJCCUIO SLUE SRf ttG 1264 6.7
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PHYTOPLAfeLTON STANDING CROP II LOCITItMr 220.0 SA W O&TE: 08/11/87 TIME: 1100 DEPTHtMit 9.Y MEAN DENSITY MEAN SIOVULtME MEAN ALGAL sammsag M AN SURFACE AREA 3 3 3 2 -3 UNITS /ML iC TOTAL tot /M % TOTAL MGMt Z TUTAL 70s mM % TOTAL CHLOROPHYCEAE (456 35.4 7741.49 26.9 281.38 34.7 0 0.0 AretISTRODESMUS FALCATUS 253 1.3 16.52 0.7 3.27 0.4 0 0.0 CARTERIA SP 253 1.3 210.00 3.2 Z?.58 3.6 0 C.S CHLAMVDOMONAS 3543 19.4 963.80 14.9 157.07 19.4 0 0.0 _CHL M UM SPIRALE 253 1.3 43.M 0.6 7.54 0.9 0 0.0 FRANCEIA DROESCHERI 127 0.6 21.Y.3 0.3 3.75 0.4 0 0.0 GOLDetINIA RAOIATA 127 0.6 44.94 0.6 7.09 0.8 0 0.0 MICRACTINILM PUSILLUM 127 0.6 57.48 0.8 8.77 1.0 0 0.0 _SCENEDESetIS ARMATUS VAR. BICAUDATUS 253 1.3 61.22 0.9 10.17 1.2 0 0.0 SCEtLDESPtJS SIJUGA 253 1.5 55.68 0.8 9.37 1.1 0 0.e SCENEDESetAS meatTLIENSIS 127 0.6 74.20 1.1 10.95 1.3 0 0.0 SCE9EDESetAS qunORICAUSA 633 3.4 146.94 2.2 24.55 3.0 0 0.0 _SELENASTRtM mil 4ATIM 127 0.6 8.49 0.1 1.67 0.2 0 0.0 CUCSUIB GREENS 380 2.0 37.34 0.5 7.00 0.8 0 0.0 BACILLARIOPHYCEAE 5496 31.2 2328.25 36.0 187.54 23.1 0 0.0 _ACHNANTHES_SPP. 1898 10.4 291.20_ 4.5 32.60 4.0 0 0.0 MELOS1RA GdANULATA 380 2.0 979.25 15.1 55.37 6.8 0 0.0 NITZSCHIA PALEA 253 1.3 102.. 1.5 9.06 1.1 0 0.0 NITZSCHIA SPP. 253 1.3 109.34 1.6 9.52 1.1 0 0.0 STEPHANODISCtr7 SP". 380 2.0 89.61 1.3 9.03 1.1 0 0.0 tJUI~DESIIF5EO 'CENTRATE DIATOMS 2405 13.1 697.79 10.8 M. 94 8.2 0 0.0 a LMIOENTIFIES POO4 ATE DIATEMS 127 0.6 58.6C 0.9 5.02 0.6' O 0.0 ru 0 y .CHRYSOPHYLEAE 886 4.8 83. M 1.2 15.57 1.9 0.0 GCHRtMMAS SPP. 127 0.6 27.6 T 0.4 4.M O.5 0 0.0 UNIDENTIFIED CHRYSOPHYCEAE 759 41 55.99 0.8 10.91 1.3 0 0.0 XANTHOPHYCEAE 380 2.0 38.35 0.5 7.16 0.8 G 0.0 0
~ ~650HUTOM000CCUS SPP. 380 2.0 38.35 0.5 7.16 0.8 0.0 CRYPTOPHYCEAE 1772 9.7 10M.57 16.4 150.52 18.5 0 0.0 CRYPTtMMAS EROSA 633 3.4 318.93 4.9 48.03 5.9 0 0.0 CRYPTtMMAS OVATA 506 2.7 M 9.70 10.3 88.63 10.9 0 0.0 RHODEM PJ3 MINLITA 633 3.4 75.94 1.1 13.86 1.7 0 0.0
_NGCOPHYCEAE _27_86 15.2 540.91 8.5 87.28 10.7 0 0.0 4GMENELLtM quAORIDUPLICATIM 253 1.3 0.25 0.0 0.08 0.0 0 0.0 ANA811NA SPIREYIDES 127 0.6 9t.95 1.4 13.55 1.6 0 0.0 j 0 0.0 CHR0tECCCUS L170RETICUS 127 0.6 1.84 0.0 0.44 0.0 127 0.6 52.63 0.8 8.13 1.0 0 0.0 _CHP00 COCCUS SPP. l USCILLATt5tIA GEMINATA 380 2.0 160.851 2.7 27.40 3.3 0 0.0 RAPHIDICPSIS CURVATA 1012 ' 5.5 151.86 2.5 26.90 3.3 0 0.0 380 2.0 4.17 0.0 1.04 0.1 0 0.0 380 54.71 0.8 9.74 1.2 0 0.0 ( 10 IDEN'IfIED LMICENTIFIES CtECUID FILAMENTERAS SLUE GREENS SLtX GREENS 2.0 1 EUGLENDPHYCEAZ 127 0.6 326.75 5.0 39.54 4.8 0 0.0 TRAt.NELOMtMAS VOLVtEINA 127 0.6 326.75 5.0 39.54 4.8 0 0.0 w
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'25tRCEDERIA SE IGERA 73 0.5 19.41 0.4 3.18 0.6 0 0.0 SELENASTRutt t1INUTtAt 73 0.5 4.89 0.1 0.96 0.1 0 0.0 SELENASTRtRt HESTIt 219 1.7 49.89 1.0 8.35 1.6 0 0.0 TREUBARIA SETIGERUM 219 1.7 30.52 0.6 5.46 1.0 0 0.0 m C0tCCID GREEPG 438 3.5 45.02 0.9 8.06 1.5 0 0.0 ro o BACILLARICPHYCEAE 4521 36.2 2472.13 53.5 180.44 34.7 0 0.0
_ACHNANT HE S_*.PP . 1458 11.6 223J2 4.8 25.04 4.8 0 0.0 t1E ttGIRA GRANULATA 510 4.0 1316.3i 28.5 74.45 14.3 0 0.0 NIT 2SCHIA HOLSATICA ZIT 1.7 74.37 1.6 6.86 1.3 0 0.0 RttI2tEOLENIA SPP. 73 0.5 157.39 3.4 9.29 1.7 0 0.0
*IELETO4EMA PUTAMOS . 292 2.3 15.62 0.3 2.25 0.4 0 0.0 (24IDENTIFIE0 CENTRATE DIAT3G 1513 10.5 380.92 8.2 36.54 7.0 0 0.0 UNIDENTIFIE0 PEtaaTE DIATOG 656 5.2 303.80 6.5 26.03 5.0 0 0.0 CHRYSOPHYCEAE 365 2.9 26.89 0.5 5.23 1.0 0 0.0 tX4 IDENTIFIED CHRYSOPHYCEAE 365 2.9 26.89 0.5 5.25 1.0 0 0.0 XAllTHOPHYCEAE 219 1.7 10.94 0.2 f '
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~itHODGU4AS MIU[TA 875 7.0 105.00 2.2 19.16 3.6 0 0.0 MYXCP'(YCEAE 2334 18.7 702.39 15.2 108.66 20.9 0 0.0 7T 0.5 54.67 1.1 7.80 1.5 0 0.0
_ANABAENA SPIROIDES 0 0.0 CHROOCOCCtG LItt4ETICLE 73 0.5 1.06 0.0 0.25 0.0 CHROUCCCCtG SPP. 219 1.7 90.96 1.9 14.05 2.7 0 0.0 CSCILLATORIA GENINATA 1021 8.1 485.34 10.5 73.67 14.2 0 0.0 292 2.3 43.75 0.9 7.75 1.4 0 0.0 _RA_PH_IDICPSIS_CUWATA 0 0.0 UNIDENTIFIED COCCOID ELtJE GREEtG 510 4.0 5.60 0.1 1.40 0.2 124 IDENTIFIED FILAMENTms SLtJE GREENS 146 1.1 21.01 0.4 3.74 0.7 0 0.0 SAP 1PLE TOTALS 12473 4614.84 518.53 0
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~ ME555TIEMA VIRIDE 20 1.1 6.45 0.5 1.05 0.9 0 0.0 00CVSTIS PARVA 20 1.1 14.01 1.2 2.02 1.9 0 0.0 SCENEDESMUS ARMATUS VAR. SIraamaTUS 20 1.1 4.95 0.4 0.82 0.7 0 0.0 SCENEDESMUS SIJUGA 82 4.6 17.97 1.5 3.02 2.8 0 0.0 SCENEDESMUS BRASILIDGIS 61 3.4 35.93 3.0 5.30 5.0 0 0.0 SCENEDESftS OUAORICAUDA 143 8.0 33.20 2.8 5.54 5.3 0 0.0 SELENASTRUM MINUTUPt 61 3.4 4.11 0.3 0.81 0.7 0 0.0 TETRAEDRG4 MUTIC1M 20 1.1 1.63 0.1 0.31 0.2 0 0.0 ~
TEilit STRt#1 STAUROGENIAETOIW1E 41 2.3 10.72 0.9 L.76 1.6 0 0.0 TRElBARIA SETIGERM 20 1.1 2.85 0.2 0.50 0.4 0 0.0 COCCSID GREENS 123 6.9 12.06 1.0 2.26 2.1 O O.0 SACILLARIOPHYCEAE 795 44.8 757.81 65.0 48.85 46.9 0 0.0 ACNNANTHES SPP. 163 9.1 25.07 2.1 2.80 2.6 0 0.0 71ELOSIRA GRADAJLATA 225 12.6 579.50 49.7 32.77 31.4 0 0.0 NITZSCHIA AGNITA
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~CHRYSOPHYCEAE 123 6.9 9.04 0.7 1.76 1.6 0 0.0
[ N tMIDE i'IFIED CHRYSOPHYCEAE MYXDPHYCEAE 81 4.5 28.54 2.4 4.47 4.2 0 0.0 CHR00 COCCUS SPP. 61 3.4 25,48 2.1 3.93 3.7 0 0.0 RAPHIDIUPSIS CURVATA 20 1.1 3.06 0.2 0.54 0.5 0 0.0 EUGLENOPHYCEAE 20 1.1 36.84 3.1 4.67 4.4 0 0.0 EUGLENA SPP. 20 1.1 36.84 3.1 4.67 4.4 0 0.0 DINOPHYCEAE 20 1.1 166.89 7.4.5 17.30 16.6 0 0.0 PERIGINILM SPP. 20 1.1 166.89 14.3 17.30 16.6 0 0.0 SAMPtE TOTALS 1772 1164.78 104.15 0
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!ALELETEMEMA POTAMOS 154 1.8 9.85 0.2 1.42 0.2 0 0.0 82 0.8 19.28 0.4 1.94 0.3 0 0.0 ._STEPHAN001SCUS SPP. 0 0.0 SYt20RA at M 20 0.1 23.44 0.5 1.61 0.2 SYNEDRA St#FO 6 41 0.4 19.52 0.4 1.66 0.2 0 0.0 SYNEDRA RLDFENS VAR. FRAOILARIGIDES 41 0.4 37.01 0.8 2.69 0.4 0 0.0 UNIDENTIFIES CENTRATE DIATOMS 858 8.4 249.02 5.4 23.09 4.2 0 0.0 531 5.2 124.08 2.7 19.30 3.4 0 0.0 CHRYSOPWYCEAE 20 0.1 23.68 0.5 3.le 0.5 0 0.0 Matt 0MONAS ALPINA 102 1.0 71.07 1.5 10.25 1.8 0 0.0
_ Matt 0HtMAS TcM5URATA 1.0 0 0.0 LMIDENTIFIES CHRYSOPHYCEAE 409 4.0 30.13 0.6 5.87 XANTMtFtfYCEME 20 0.1 4.10 0.0 0.69 0.1 0 0.0 20 0.1 4.10 0.0 0.69 0.1 0 0.0 PSEUDOTETROEF- NEGLECTut 1002 9.8 304. 9 6.6 46.56 8.2 0 0.0 CRTFTOPtfYCEAE m 225 2.2 113.25 2.4 17.05 3.0 0 0.0 a CRYPICDetD4AS ERUSA
- 82 0.8 108J 9 2.3 14.30 2.5 0 0.0 ._CRYPTCMEDeAS_UVATA 2.6 0 0.0 RMODWO4AS M1ptJTA 695 6.8 83.35 1.8 15.21 2758 27.1 659.54 14.4 105.30 18.6 0 0.0 PfYMOPHYCEAE h5 1.4 0.14 0.0 0.04 0.0 0 0.0
_AonENELMSLOUADRIDUPLICATIDt 0.57 0.1 0 0.0 CHROOCOLLUS Lite 4ETICUS 163 1.6 2.37 0.0 CMR00CDCCUS SPP. 1267 12.4 526.57 11.5 81.38 14.4 0 0.0 20 0.1 1.15 0.0 0.23 0.0 0 0.0 LYNG8YA SPP. 102 1.0 20.05 0.4 3.42 0.6 0 0.0
._U_ SCILL Af tEtI A_LIPedETICA 1C.85 1.9 0 0.0 RAPMIO10PSIS CURVATA 409 4.0 61.29 1.5 347 3.4 3.81 0.0 0.95 0.1 0 0.0 LMIDENTIFIES CtR'CUIS SLUE GREENS LMIDENTIFIED FILAMENT 0uS SLUE GREEi45 307 3.0 44.17 0.9 7.86 1.3 0 0.0 41 0.4 121.96 2.6 14.47 2.5 0 0.0 EUGLENDPHYCEAE 41 0.4 121.96 2.6 14.47 2.5 0 0.0 TRACHELtMEDIAS SPP.
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CreMnRItat ASPNAEsPzspin et VAR. STRIcarmat 23 41 0.1 e.3 3.47 21.26 e.e e.3 e.se 3.1.
e.e e.5 e e O.e 0.0 m CosM.Rrun TE . CauCasEMIA xaREcutAR15 143 1.0 19.3e e.3 3.46 e.5 e e.O eICTYaseseaERIuM EnnEpeEnGIAsant la2 0.7 155.96 2.7 ze.24 3.2 e e.e sotEsotINIA RASIATA el e.3 14.52 e.2 2.29 e.3 e e.e NAEnnTatatCuS (ACuSTRIS 4a e.3 37.01 e.6 5.15 e.e e o.e n RCwsERIEttA SueSot1TARxA 82 0.6 16.e5 e.3 2.a6 e.4 0 0.0 LAcERaEIMIA Sae-a 20 e.1 3.3e 0.0 9.59 e.e e e.e N SOSTIGMA VIRIeE 125 e.9 38.74 c.6 6.21 0.9 0 0.9 MICRACTI_ MIL 99 PUSILList 20 e.1 9.26 0.1 1.41 e.2 e e.e OOCYSTIS PARVA 41 e.3 28.09 c.5 4.e5 0.6 e e.e POLYEeRItrS15 SPIDE8LERSA 41 0.1 S.67 0.1 1.46 e.2 e e.e SCENEKSDRAS annamme VAR. ASYteETRICA 20 e.1 5.34 0.e e.87 e.1 e 8.0
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$'lEeESetAS eIJUGA 143 1.0 31.46 S.5 5.29 0.8 e 0.9 C.TNEeESetRS maatILIENSIS 123 e.9 71.e6 1.2 10.68 1.7 e e.0 TCENEeESfRES eENTICULATUS 41 0.3 36.45 e.6 5.13 0.8 e e.e SCE8EeESenas eENTICULATUS VAR. REClatVATUS 20 e.1 24.24 ,
e.4 3.25 e.5 e 9.0 SCE9EeESitJS 4RameR1rmana 327 2.4 75.91 1.3 12.64 2.0 e e.e SCNRGEeERIA SETIGERA 41 e.3 le.89 e.1 1.78 e.2 . O e.e SELENASTIESE *t19ESTUt 41 e.3 2.74 e.e e.54 e.e 0 0.8 SELENASTIRAt DESTII el G.4 13.9e 9.2 2.34 e.3 e 0.8 SORASTAUM SP194AL55Lat 29 0.1 33.52 0.6 4.30 8.6 0 0.0 STAURASTaLat SICKIEI VAR. Aseme019EtSt 41 e.3 98.77 1.7 12.e5 1.9 e S.8 TETRAEeStet MINI 9tSt 2e e.1 3.49 e.e 4.68 e.O e o.O TETRAEeNC's Ot#TICtst 28 0.1 1.63 0.e e.31 e.O e 0.9 TEiUdeINe6 REGULAAE VAR. 10stus 20 e.1 2.o1 e.e 0.37 S.e o e.e TREUeARIA SETICEREDI 41 e.3 5.71 9.1 1.e2 e.1 e o.e COCC018 GAEENS 388 2.8 38.17 S.6 7.15 1.1 e e.e SACILLARitrefvCEAE 5313 39.1 2725.22 48.8 281.52 32.3 e 0.e ACMMANTMES SPP. 695 5.1 106.55 1.9 11.92 1.9 8 e.e CYCLOTELLA SPP. 2e6 2.1 56.63 1.9 5.95 0.9 e e.e DELOSIRA eISTANS 82 0.6 28.84 e.5 2.50 e.4 0 0.8
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MELUIRA GRaptfLATA 593 4.5 1528.06 27.3 86.41 13.8 9 0.0 NITZSC881A IIeLSATICA 266 1.9 99.28 1.6 S.33 1.3 e 0.9 NITZSCHIA KUTZIpe;1Apth 41 0.3 15.21 0.2 1.37 c.2 e e.0 MITZSCMIA PALEA 2e 8.1 S.26 0.1 e.73 0.1 e o.e MITZSCHIA SUDLIDEARIS 20 0.1 27.54 e.4 1.s2 0.2 e o.e MITZSC38It SPP. 82 0.6 35.29 e.6 3.e7 0.4 e e.e AstI2tEOLENIA SPP. Ze e.1 44.e4 e.7 2.68 e.4 e e.e
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STEPHAN001SCUS SPP. 102 0.7 24.12 0.4 2.43 0.3 0 0.0 l 0 0.9 SYMESRA NLMPDES 41 0.3 19.52 0.3 1.66 0.2 2370 17.4 687.74 12.3 65.98 10.6 0 9.0 _LmIoENTIFIES CENTRATE DIATOMS 1.62 o.2 e e.o tMIoENTIrIEo PoseATE oIATerES 41 0.3 1s.93 e.3 C =YsePavCE u 674 4., 105.66 1.. 17.6, 2.. 0 0.. 41 0.3 9.01 .1 1.51 e.2 e ... _oIN== YON SPP. 9.7 6.14 0.9 0 9.9 ftALLt94tMAS YtBESIMATA 61 0.4 42.63 S.O 82 0.6 17.86 0.3 3.00 0.4 0 j OtteREWitBAAS SPP. l 19010ENTIFIES CMtY5cretVCEAE 490 3.6 36.15 S.6 7.94 1.1 0 0.0 CRYPTCPetVCEAE 1001 7.3 404.11 7.2 58.91 9.4 0 0.9 163 1.2 82.35 1.4 12.44 1.9 9 0.9 i CRYPTt24tseAS Emrna le4 1.3 243.30 4.3 32.19 5.1 0 0.8 CRYPTt9stseas OVATA 6% 4.8 78.46 1.4 14.32 2.3 0 9.0 mee0DE9EDens MISSETA 1 1961 14.6 610.30 19.9 93.89 15.0 0 0.9 f NYNOPetVCEAE
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