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1977 Impingement Program Analysis Rept
	ML17256B235
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Site:	Ginna
Issue date:	01/31/1980
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RGE REPORT NO. B-13-072 1977 IMPINGEMENT PROGRAM ANALYSIS REPORT GINNA NUCLEAR POWER STATION 8209l60442 8209i0.

PDR ADOCK 05000244 D

PDR gmUi~gg gI',EEi iiLit'IIP)

Data Collected and Report Prepared by Eco Research, Inc.

January, 1980

l

1977 IMPINGEMENT ANALYSXS REPORT GINNA NUCLEAR POWER STATION TABLE OF CONTENTS List of Tables

~Pa e

List of Figures

~

ill I ~

INTRODUCTION.

1 II.

METHODS

~

~ i o

~

III.

RESULTS AND DISCUSSION 9

A.

B.

C.

BIBLXOGRAPHY 1977 Im in ement Overview S ecz.es Com o'sit'ion Com are.son o'f Im in ement from 1973-197 7 9

12 23 29

1977 IMPINGEMENT ANALYSIS REPORT GINNA NUCLEAR POWER STATION TABLE TABLE TABLE TABLE TABLE TABLE TABLE 7 TABLE 8 TABLE 9 TABLE 10 TABLE ll TABLE 12 TABLE 13 TABLE 14 TABLE 15 TABLE 16 TABLE 17 TABLE 18 TABLE 19 TABLE 20 TABLE 21 TABLE 22 TABLE 23 TABLE 24 TABLE 25 TABLE 26 TABLE 27 TABLE 28 TABLE 29 TABLE 30 TABLE 31 TABLE 32 TABLE 33 TABLE 34 TABLE 35 TABLE 36 TABLE 37 TABLE 38 TABLE 39 TABLE 40 TABLE'1 TABLE 42 TABLE 43 TABLE 44 TABLE 45 TABLE 46 LIST OF TABLES Impingement sonal Periods ng Average udy Dates Taxonomic Breakdown of Fish Species Projected to be Impinged in 1977 Impingement Summary for Total Xmpingement Summary for Alewife Correlation Coefficients for Comparisons of Rates with Environmental Factors During Sea of Abundance Xmpingement Summary for Smelt Ginna Nuclear Power Station Condenser Cooli Intake Water Temperatures for Ecological St in 1977 Impingement Summary for Stickleback Impingement Summary for Mottled Sculpin

,Impingement Summary for Spottail Shiner Impingement Summary for White Perch Impingement Summary for Lake Chub Impingement Summary for Gizzard Shad Impingement Summary for Emerald Shiner Impingement Summary for White Bass Impingement Summary for Yellow Perch Impingement Summary for Johnny Darter Impingement Summary for Lake Trout Impingement Summary for Brown Trout Impingement Summary for Chinook Salmon Impingement Summary for Smallmouth Bass Impingement Summary for Brown Bullhead Xmpingement Summary for Rock Bass Impingement Summary for Trout Perch Xmpingement Summary for White Sucker Xmpingement Summary for Pumpkinseed Xmpingement Summary for Bluegill Impingement Summary for Black Crappie Impingement Summary for Fantail Darter Impingement Summary for Largemouth Bass Impingement Summary for Longnose Dace Impingement Summary for Channel Catfish Impingement Summary for Goldfish Impingement Summary for Mudminnow Impingement Summary for Carp Impingement Summary for Freshwater Drum Impingement Summary for Redhorse Sucker Impingement Summary for Slimy Sculpin Impingement Summary for Walleye Impingement Summary for Brook Stickleback Impingement Summary for Cisco Impingement Summary for Longnose Gar Impingement Summary for American Eel Impingement Summary for Bluntnose Minnow Impingement Summary for Spotfin Shiner Ten most Abundant Species Impinged in 1977 Salmonids impinged at the Ginna Station by year

~acae 30 32 33 34 35 36 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79

J 1 l

I c:

1977 IMPINGEMENT ANALYSIS REPORT GINNA NUCLEAR POWER STATION FXGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FXGURE FIGURE FXGURE FIGURE FIGURE FXGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FXGURE FIGURE FIGURE FIGURE FIGURE FXGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE FIGURE F INURE FIGURE LIST OF FIGURES 1

2 3

3a 4

5 6

7 8

9 10ll 12 13 14 15 Impingement Abundances As Xndicated by Sampling Con-ducted in 1977 Biomass Estimates Generated From 1977 Sampling Alewife Impingement-1977 Time-Related Regression Plot for Alewife Impingement (Annual)

Alewife Impingement,-March 1977 Alewife Impingement-April 1977 Alewife Impingement-May 1977 Alewife Impingement-June 1977 Alewife Impingement-July 1977 Alewife Impingement-September 1977 Alewife Impingement-October 1977 Alewife Impingement-November 1977 Smelt Impingement-1977 Time-Related Regression Analysis for Smelt Impingement Sticklebadk Impingement-1977 Time-Related Regression Analysis for Stickleback Impingement 15a Mottled Sculpin Impingement-1977 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 Time-Related Regression Plot for Mottled Sculpin Impingement Spottail Shiner Impingement-1977 Time-Related'egression Analysis for Spottail Shiner Impingement Time-Related Regression Analysis for White Perch Impingement Time-Related Regression Analysis for Lake Chub Impingement Time-Related Regression Analysis for Emerald Shiner Xmpingement Alewife-Comparison of Impingement from 1973-1977 Approximate Number of Salmonids Planted in New York Waters of Lake Ontario, 1971-1977 Smelt-Comparison of Xmpingement from 1973-1977 Stickleback-Comparison of Impingement from 1973-1977 Mottled Sculpin-Comparison of Impingement from 1973-197 Spottail Shiner-Comparison of Impingement from 1973-197 Lake Chub-Comparison of Impingement from 1973-1977 Emerald Shiner-Comparison of Impingement from 1973-1977 White Bass-Comparison of Impingement from 1973-1977 Smallmouth Bass-Comparison of Impingement from 1973-197 Johnny Darter-Comparison of Impingement from 1973-1977 Total Trout-Comparison of Impingement from 1973-1977 White Perch-Comparison of Impingement from 1973-1977 Pacae 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 7 107 7 108 109 110ill 7 112 113 114 115

1977 IMPINGEMENT ANALYSIS REPORT, GINNA NUCLEAR POWER STATION I.

INTRODUCTION The primary aim of the 1977 Impingement Program was to determine the numbers and species of fish subjected to travel-ing screen (3/8" mesh) impingement at the Ginna Nuclear Power Station.

This information was derived from the results of a sampling schedule designed to collect impingement data on a bi-weekly basis throughout the year.

The results of this study provide a basis for assessing the impact of impingement on vari-ous fish species.

This report contains the analysis of all impingement data collected in 1977 and data are presented for the 26 species collected in 1977.

While this report indicates the numbers of each species impinged, it does not indicate the percentage of total lake populations impinged.

In order to assess impact other aspects of the biology of these fish must be used.

Estimation of the percentage of a species or population impinged requires infor-mation on population levels within the lake.

To date no satisfactory method of calculating total populations of any one species in the area or in the lake in general has been developed by anyone.

There-fore, the only practical means of evaluating the impact of impinge-ment is to examine the seasonal and long-term trends in the varia-tion of numbers of fish impinged, and to determine the various behavior or environmentally related factors which may present impinge-ment problems to fish populations.

This is the method employed in this report.

Another purpose of this study was to record the seasonal variations in impingement and to attempt to assess the reason for these variations.

There is a natural, flux of fish populations manifested in response to various physiological demands and behavioral tendencies.

These aspects of fish behavior have a

tendency to significantly affect impingement rates at various times.

For example, many fish overwinter in deep offshore water or in bays, rivers, or streams off the lake.

They are, there-fore, relatively far removed from the area near the intake structure, which is located in about 30 feet of water.

However, many of these species utilize inshore water during the, spring and summer for spawning and/or feeding and may be impinged at increased rates while migrating to these areas during the spring.

This is commonly the situation encountered for schooling species such as the alewife, smelt, and particular game fishes.

A simi-lar situation may occur during the fall as fish move back into deep water.

Other behavioral and environmental aspects which generally have short-term effects on impingement rates are depth preferences, the volume of water flow into the intake, and the reaction of fish to the intake structure.

Echo-soundings conducted near the in-take and observed increases in rates of impingement indicate that some fish may use the intake structure as a shelter during periods of heavy wave activity or when stronger currents are moving past the intake (RGE, l980).

This behavior may increase impingement rates depending upon the season of the year.

Diurnal trends and temperature changes are also commonly encountered variables which may significantly influence impingement.

It has been

generally found that many species are impinged in greater numbers during the early to middle part of the night. It is interesting to note, however, that the results of coordinated impingement and echo-sounding studies indicate that larger percentages of the number of fish present in the immediate area of the intake are impinged during daylight hours (RGE, 1980).

In general, then; the aim of this impingement study was to examine the overall short-and long-term effects of impingement in relation to the number of fish impinged.

This study does not, however, indicate the percentage of lake populations impinged.

Short-term effects were determined from abundance patterns examined in relation to seasonal and environmental variations.

Long-term effects were determined from observed abundances of impinged fish as indicated by sampling conducted during the years of 1973-1977.

The conclusions derived from th's impingement study are of necessity confined primarily to the assessment of the observed variation in the numbers of fish impinged as related to changes in behavioral patterns and environmental conditions.

While in-conclusive, the long-term results of this study indicate that impingement does not adversely affect the stability of lake populations of fish.

The results and conclusions indicated by this impingement study can be summarized as follows:

1)

A total of 146,956 fish from 40 species representing 16 families was projected to have been impinged in 1977.

Alewives and smelt were by far the most frequently impinged

species, accounting for approximately 80%, of the combined annual projection.

Approximately 99% of the combined annual projection was represented by 10 fish species.

2)

Throughout the year peak periods of impingement occurred during the spring and fall.

Onshore-offshore movements of fish appear to be the major factors responsible for the observed peaks.

The spring peak was the result of shoreward spawning runs of ale-wives and smelt.

Shoreward movements of smelt appear to have been responsible for the fall peak.

3)

The age-classes of species impinged were generally difficult to assess.

For the most part, adult sizes were im-

'pinged.

The alewife was the only species that exhibited dis-t'nct age-class trends in impingement.

Adult alewives were im-pinged from February to July while juveniles predominated from August to December.

4)

Diel behavioral patterns appear to have a definite effect on impingement rates.

The majority of species collected F

were impinged in greatest numbers at night between the hours of 10 PM 6 AM.

Echo-soundings near the intake, however, in-dicate that greater percentages of fish in the area at. any one time may be impinged during the day (RGE, 1980).

5)

Investigations into the relationships between environ-mental factors and impingement rates suggested a possible in-fluence due to wave height.

In many cases, in 1977, correlation analyses indicated that impingement abundances were increased

during peri'ods characterized by increased wave activity.

In

general, water temperature, wind speedy wind direction, and cloud cover did not have discernable influences on impingement rates.

6)

Impingement levels for 1977 were the lowest recorded since studies began in 1973.

This situation was the result of reduced abundances of the numerically dominant alewife, smelt, and stickleback.

In general, it appears that the lower numbers of fish impinged may be due to increased predator pressure exerted by salmonids and to intake flow levels utilized in 1977.

Xt also appears that the annual impingement variations noted for many species may simply reflect natural fluctuations of population abundances.

X.

METHODS Data were collected during 120 24-hour studies conducted during 1977.

The sampling schedule was designed so that im-pingement data would be collected at approximately equal in-tervals throughout the year.

A study by Murarka and Sharma (unpublished, 1974) indicated that 120 studies are sufficient to predict actual impingement to a 95% level of confidence within a 15% margin of error.

Impinged fish were collected at, four-hour intervals during each 24-hour study.

The resulting six time periods sampled per-tain to the daily time intervals of 2-6 PM, 6-10 PM, 10 PM-2 AM, 2 AM-6 AM, 6 AM-10 AM, and 10 AM-2 PM.

From each period the numbers and species of fish impinged and the average length and weight of each species were recorded.

The average daily environmental conditions, such as wind speed, wave height, water temperature, wind direction, and cloud cover were also measured and recorded.

This detailed information regarding impingement collections and associated factors are presented in RGE, 1979c.

The impingement projections provided in this report were calculated by summing the actual numbers observed to be impinged on the 120 sampling days and by using a weighted average cal-culated for each unsampled day.

The weighted averages used for unsampled days were calculated by averaging the number of fish impinged during the sampling day before and after an unsampled interval.

This average value was then used to indicate the number of fish impinged on each unsampled day.,

For example, if sampling conducted on January 1 and January 5 produced 10 and 20 fish

respectively, then the weighted average used for each of the unsampled dates (January 2-4) would be l5 fish.

Impingement piojections were generat'ed after all the necessary weighted averages were calculated.

The general expression used to calculate annual and monthly projections was:

n N.

+

i i+1 ht + N i

3.=l where:

T = annual or monthly projection Nn number of days for which projection is being calculated number of fish impinged on a given sample day number of unsampled days between N. and N.

3.

3.+1 number of fish impinged on the last study of the projection period.

Biomass projections are presented in this report in re-lation to the number of kilograms impinged.

These projections were generated by multiplying the average weight of an impinged species by the number of fish impinged, then summing these values over the year.

A weighted average for unsampled days was calcu-lated for average weight impinged.

This was done in the same manner as described above.

The diel trends presented in this report were indicated by the results of computerized polynomial regressions carried out in relation to the six four-hour time periods sampled each day over the year.

This process basically involved summing the number of fish impinged during each particular time period.

The numbers from each time period were then compared in relation

to all time periods to determine if diel trends in impinge-ment existed.

Diel regression plots generated are provided for all dominant, species impinged 'during 1977.

The average length and weight of an impinged species was calculated on a monthly basis.

These values were then compared to seasonal abundance patterns to determine if isolated segments or year-classes of a population were subjected to impingement.

Correlation coefficients were calculated to determine if relationships existed between the observed numbers of fish impinged and various environmental factors.

This method basi-cally involved comparing levels of environmental factors (tem-

perature, wind speed, etc.)

recorded during the year with the respective numbers of fish impinged.

The results of correlation analysis provide an indication of the linear relationship be-tween impingement and the environmental variable under consider-ation.

III. RESULTS AND DISCUSSION A.

1977 Im ingement Overvi'ew A total of 146,956 fish from 40 species representing 16 families was projected to have been impinged during 1977-A taxonomic breakdown including the orders,

families, and species of fish collected is contained in position and projected numbers of

,,Table 1.

The species com-fish impinged during, 1977 are presented below in decreasing order of magnitude.

The first 10 species listed accounted for 98.99$ of the entire impingement projection.

SPECIES OF ESTIMATED ESTIMATED" TOTAL FOR I FOR 1977 SPECIES LISTED Alewife (Alosa seudoharen us)

Smelt (Osmerus mordax)

Threespine Stzckleback (Gasterosteus aculeatus)

Spottail Shiner (Notropis hudsonius)

Gizzard Sha~Dorosoma cepeKianum)

Emerald Shiner~Notropis atherznoides)

Rock Bass (tu~lop ites rupestris)

Trout-perch (Percopsa.s orna.scomaycus)

Fi Smallmouth Ba~ss Mzcropterus dolomieui)

Goldfish (Carassius auratus)

Central Mudminnow (Umbra limi) 71,856 45,852 6,416 5,003 4,801 4,719 2,867 1,461 1,308 1,223 315 212 192 158 150 112 49 48 44 22 21 15ll 11ll 48.89 31.20 4.36 3.40 3.27 3.21 1.95 0.99 0.89 0.83 0.21 0.14 0.13 0.11 0.10 0.08 0.03 0.03 0.03 0.01 0.01 0.01

<0.01

<0. 01

Estimated using weighted average (See Section II. ((ethodolocad)

SPECIES OF ESTIMATED ESTIMATED TOTAL FOR FOR 1977 SPECIES LISTED Brown Trout (Salmo trutta)

Carp (~Crinus

~car ro)S~

Redhorse Sucker (Moxostoma sp.

Slimy 'Sculpin (Cottus

~co natus)

Walleye (Stizostedion vitreum vitreum)

American Eel (An uilla rostrata)

Chinook Salmon Oncorh nchus tshawytscha) 10 8

8 7

7 7

6 4

4 4

3 3

1 1

<0. 01

<0. Ol

<0. 01

<g.01

<0.01

<0. 01

<0. 01 TOTAL 146,956*

Estimated using weighted average (See Section II. METHODOLOGY).

Impingement abundances, as indicated by sampling conducted during 1977, exhibited rather rapid and extreme fluctuations throughout much of the year (Figure 1 and Table 2).

Although this situation occurred

commonly, a number of trends in abun-dance could be discerned.

During January,

February, and March impingement abundances were relatively stable with the exception of a number of isolated peaks and valleys.

Following an early April peak,

however, a distinct reduction in impingement was noted.

It appears that the low number of fish impinged during mid and late April may have abundances near the intake.

been related to reduced population An echo-sounding study in April indicated that, in general, few fish were present in the area (RGE, 1980).

Following the April reduction, a peak period of impinge-H ment occurred.

Extending from early May through late June, this peak was by far the greatest experienced during 1977 in relation to both numerical abundance

'and duration.

Impingement projections from May and June represented 50% of the total 1977 projection.

As would be expected, this peak corresponds with the seasonal occurrence of alewives.

It is of interest that during the May peak considerably reduced intake water levels were being utilized at Ginna (Figure 1).

In July impingement abundances fluctuated erratically until late in the month when a steady decline was noted.

Low impinge-r ment levels continued through mid-August. It is likely that temperature preference is a major factor affecting impingement during this period.

Graham -(1956) indicated that the alewife, which was the dominant fish impinged prior to this period, is found in inshore regions during the summer.

Another possible explanation is that spawning runs, which bring many fish into contact with water intakes, are by this time completed and the spawners have returned to deeper water away from the influence of the intake.

Wells (1968) reported that smelt, after spawning inshore during spring, return to deeper and colder'offshore waters where they remain for the summer.

Following this summer period, the number of fish impinged increased steadily until a second major peak was experienced during October.

This peak was likely related to declining lake temperatures and the concomitant off-shore or onshore movements of various species in search of their temperature preferenda.

The October peak may also reflect an

avoidance response by fish to more turbulent nearshore areas in the fall.

Impingement abundances during November and December were similar to those encountered during the period of January through March.

Biomass estimates generated from 1977 sampling are almost directly proportional to impingement abundances (Figures 1 and 2).

The impingement of adults of the alewife and smelt are the major factors responsible for this relation.

Although young-of-the-year fish were impinged during various periods, they were at no time during 1977 the dominant form impinged.

The total biomass projected for 1977 was 2,081.71 kg (4,589.38 lb) of fish.

Figure 2 shows the seasonal distribution of biomass impinged, with the bulk being impinged during the months of May and October, reflecting spring runs of alewives and smelt and fall runs of smelt.

B.

S ecies Com osition l.

Alewife (Alosa seudoharen us)

(Table 3)

There were 25,299 alewives collected over the 120 study periods, which produced a projected impingement level for 1977 of 71,856.

This figure represented 49% of 'the com-bined 1977 impingement projection.

Alewife impingement during the year was characterized by two peaks in abundance (Figure 3).

The initial peak occurred in May with impingement levels also being high early in April and during June.

Thc three-month period accounted for 95% of the total 1977 alewife projection.

This peak reflects the movement of alewives past the water in-takes during spring spawning runs.

It is interesting that the

May abundance peak occurred at a time when "plant" operations were utilizing considerably reduced water levels (Figure 1).

It is conceivable that greater numbers of alewives could have been impinged if normal intake flow levels were experienced.

The second peak occurred during October but accounted for only 3% of the 1977 alewife projection, and may indicate an off-shore movement of juvenile alewives in response to declining water temperatures in inshore areas.

It was found that the two peaks described above were created by alewives of two distinctly different size classes (Figure 3).

The average length and weight, of alewives during the spring peak were approximately 15 cm and 20 gms, respectively.

These values correspond closely with the average adult size of alewives in Lake Ontario reported by Graham (1956).

However, beginning in August and continuing through December considerably smaller'size) alewives were impinged.

The average length and weight of alewives impinged during this period were approxi-mately 6.5 cm and 3 gms, respectively.

Smith (1907) indicated that by fall,the lengths of young-of-the-year alewives range from 5.1-7.5 cm.

Generally, then, it is apparent that adult alewives were subjected to impingement from February through July, while young-of-the-year alewives were the major form im-pinged during the remainder of the year.

It is also apparent that adults are impinged in considerably greater quantities than the young-of-the-year.

Alewife impingement was characterized by diel trends during all months studied in 1977.

Figures 3a-11 provide annual and various monthly regression plots of impingement in relation to the various time periods studied.

From these plots it can be seen that impingement abundances generally peaked during the nighttime periods of 10 PM-2 AM and 2 AM-6 AN.

Impingement de-creased somewhat during the intermediate 6 PM-10 PM and 6 AM-10 AM

periods, while considerably fewer fish were, impinged during the strictly daytime study periods (2-6 PM and 10 AM-2 PM).

With respect to the influence of environmental factors, the number of alewives impinged was significantly correlated with wave height.

For all periods

examined, correlation analyses indicated greater numbers. of fish were impinged during periods of increased wave activity (Table 4).

Alewife impingement rates did not appear to be influenced by any other environ-mental factor (Table 4).

2.

Rainbow Smelt (Osmerus mordax)

(Table 5)

Smelt, the second most commonly collected species, were projected to have 45,852 impinged during 1977.

This projection comprised 31% of the total combined annual pro-jection.

Smelt were impinged most frequently during the fall,

winter, and spring,'hile considerably fewer numbers were im-pinged throughout the summer (Figure 12).

This finding is ex-pected if impingement is compared to water temperatures near the intake.

The reported preferred temperatures of smelt are at or below 59oF (17oC)

(Van Oosten, 1953).

These tempera-tures were generally encountered near the intake during periods of greatest impingement.

However, during the summer and par-

ticularly during July and August intake temperatures averaged 10-15 F (5.5-8.9 C) above that preferred by smelt (refer to Table 6 for average intake temperatures in 1977).

The low numbers impinged during this period indicate that smelt actively avoid the intake area during the summer.

The comparatively low numbers of smelt captured in gill nets during the summer near Ginna lends support to the contention that few in-dividuals were in the area at. this time (RGE, 1979a).

Peak impingement during October~ may reflect the combined effect of increased abundances

'in the area of the intake due to reduced water temperatures and the recruitment. of young fish to the local populations.

A similar increase of smelt abundances was also observed in gill nets set near Ginna in October (RGE, 1979a).

The size range of smelt during 1977 was quite variable, but several trends were evident (Figure 12).

Smaller fish were generally impinged during January and February and again during the summer.

The sizes of fish impinged during 'these periods were similar to those reported for young-of-the-year and one-year-old fish (MacKay, 1958; Scott and Crossman, 1973).

The observed sizes of fish impinged at other times of the year indicate that during these periods a variety of year-classes was impinged.

Diel investigations of smelt impingement indicate that this species is most susceptible to impingement at night.

Considerably fewer smelt were impinged during daylight hours.

Figure 13 provides the results of time-related regression analysis for smelt impingement.

As discussed

above, smelt impingement abundances appeared to be influenced by water temperature, but correlation analysis indicated a significant relationship only during the fall (Table 4).

In addition, wave height and, to some extent, wind direction were also indicated to be influencing factors (Table 4).

3.

Threes ine Stickleback (Gasterosteus aculeatus)(Table 7)

Throughout the 120 studies in 1977, 2,539 sticklebacks were collected, producing a projected impingement level of 6,415 fish.

This value represented approximately 4% of the combined 197/ projection.

Impingement abundances of stickle-backs were greatest during the spring and early summer (Figure 14).

Impingement projections for the four-month period of April through July accounted for 75% of the annual stickleback projection.

Stickleback impingement during the remainder of the year was characterized by erratic abundances at generally very reduced levels.

The average length of sticklebacks impinged was fairly constant during 1977 (Figure 14).

With the exception of September, the average length of sticklebacks collected was approximately 6 cm.

This value corresponds closely with adult sizes reported by Scott and Crossman (1973).

Sticklebacks were impinged at considerably greater frequencies during nighttime hours in 1977.

The extent of this N

tendency is indicated by the shape of the regression plot

'16-

provided in Figure 15.

Similar to alewives and smelt, stickleback abundances appeared to be influenced by wave height (Table 4).

In addition, correlation analysis indicated possible relation-ships with wind speed and cloud cover (Table 4).

4.

Mottled Scul in (Cottus bairdi)

(Table 8)

Annual projections indicated that 5,003 sculpins were impinged during 1977.

Sculpins represented approximately 3% of the combined annual projection.

These fish were generally impinged in greatest numbers during late fall and winter with impingement also being high during May in 1977 (Figure 15a).

The average length of impinged sculpins was fairly consistent throughout the year (Figure 1 6).

Average lengths of approximately 6.5 cm indicate that, adults were the predominant form impinged.

In 1977, scu3pins were generally impinged in

(

greater numbers at night (Figure 15a).

Also, in relation to environmental factors, correlation analysis indicated that impingement rates were influenced by water temperatures (Table 4). It appears that, in general, greater numbers of sculpins were impinged during periods characterized by low water temperatures.

This finding was likely related to the seasonal occurrence of this species.

5.

Spottail Shiner (N~otro is hudsonius)

(Table 9)

There were 4,801 spottails projected to be impinged during 1977.

With the exception of October, relatively low levels were impinged throughout the year (Figure 17).

October projections accounted for 50% of the annual spottail projection.

The size of impinged spottails varied during 1977, but t

during most months the average length was approximately 10 cm (Figure 17).

Xf age-length relationships in Lake Ontario are similar to those in Red Lake, Minnesota, as reported by Smith and Kramer (1964), the majority of spottails impinged would be approximately three years old.

Diel investigations of spottail impingement indicate that these fish are impinged most frequently at. night.

Figure 18 provides the results of time-related regression analysis for spottail impingement.

Correlation analysis indicated that in 1977 spottail shiner impingement rates were significantly influenced by wave height (Table 4).

The results of this analysis suggested that greater numbers were impinged during periods of in-creased wave activity.

6.

White Perch (Morone americana)

(Table 10)

The projected number of white perch impinged during 1977 was 4,719 individuals.

This number represented approxi-mately 3% of'he total annual projection for all species.

These fish were impinged most frequently during the three-month period of October-December.

This period accounted for 96% of the annual projection.

October projections alone comprised 80%

of the annual projection.

Diel investigations indicated that the majority of white perch were impinged at night.

Figure 19 provides an illustra-tion of the results of time-related regression analysis.

Correlation analysis indicated no significant relation-ships between the number of white perch impinged and various environmental factors (Table 4).

7.

Lake Chub (Couesius

~lumbeus)

(Table 11)

A total of 2,867 lake chub were projected to be impinged during 1977.

Lake chub projections comprised ap-proximately 2% of the combined annual projection.

These fish were impinged in greatest numbers during the spring and fall.

Diel investigations indicate that comparable numbers of lake chub are impinged throughout both day and night.

Regression analysis indicates that impingement rates may be only slightly higher at night (Figure 20).

With regard to the influence of environmental factors, lake chub impingement rates appeared to be significantly affected by wind speed and wave height (Table 4).

The results of correlation analysis indicated greater numbers were impinged during periods of increased wind speed and wave height.

There were 1,461 gizzard shad projected to be im-pinged during 1977.

This number accounted for approximately 1% of the annual projection.

The greatest numbers of gizzard shad were impinged during the three-month period of October-December.

Projections from this period comprised 93': of the annual gizzard shad projection.

Investigations into the influence of environmental factors on impingement rates suggested no significant relationships for gizzard shad (Table 4).

9.

Emerald Shiner (N~otro is atherinoides)

(Table 13)

Projections indicated that 1,307 emerald shiners were impinged during 1977.

December projections were con-siderably greater than during any other month.

The 799 fish projected for December accounted for 61% of the annual emerald shiner projection.

Diel investigations carried out on emerald shiners indicate that greater numbers were impinged at night.

Figure 21 illustrates the results of time-related regression analysis.

Emerald shiner impingement rates did not appear to be significantly influenced by environmental factors (Table 4).

10.

White Bass (Morone ~chr so s)

(Table 14)

'A 'total of 1,223 white bass were projected to be impinged during 1977.

December projections represented approximately 78%, of the annual projection.

White bass were relatively unaffected by intake operation throughout the spring and summer.

Correlation analysis did not indicate any significant relationships between the number of white bass impinged and environmental factors (Table 4).

ll.

Yellow Perch (Perca flavescens)

(Table 15)

An impingement projection of 212 yellow perch re-sulted from 74 fish collected during 1977.

Impingement of this species was very erratic but generally highest during the fall.

Projections from. the period of October-November represented approximately 71% of the annual projection for perch.

Impingement rates for yellow perch did not appear to be influenced by environmental factors (Table 4).

There were 158 johnny darters projected to be impinged during 1977.

Impingement abundances were generally erratic but somewhat, higher in the late spring and early fall.

A total of 163 salmonids were projected to be impinged in 1977.

This estimation represents the combined projections for lake trout, brown trout, and chinook salmon.

Projections for lake trout comprised 92% of the annual pro-jection for salmonids.

Impingement rates were generally highest in the winter and spring when these fish (particularly lake trout) become active near shore.

These fish are present in much deeper water at other times during the year.

The average length of lake trout impinged in 1977 was 13.2 cm.

This size corresponds well with juvenile sizes (probably 1 or 2 years. old) reported by Scott and, Crossman (1973).

Correlation analysis indicated that lake trout im-pingement rates were significantly influenced by wave height (Table 4).

Greater numbers were generally impinged during periods of increased wave activity.

A total of 48 smallmouth bass were projected to be impinged in 1977.

Although the number of smallmouth bass collected was always very srtall, these fish were impinged during all seasonal periods except spring.

15.

Brown Bullhead (Ictalurus nebulosus)

(Table 21)

Twenty-two brown bullhead were projected to be impinged in 1977.

These fish were impinged erratically at very low levels throughout the year.

Since these fish usually live close to the lake bottom, they are not as susceptible to impingement as some other 'species.

They

are, however, very common -in the lake (RGE, 1978 and 1979b).

In 1977, a total of 314 rock bass were projected to have been impinged.

Seasonally, abundances were greatest during f'all and winter and correlation analysis indicated that impingement rates were influenced by wind speed and wave height (Table 4).

In general, greater numbers of rock bass were apparently impinged during periods characterized by increased wind speed and wave height.

In addition to the species discussed

above, 22 other species were also collected in 1977.

Projections,

however, were generally low; the" combined projection for all 22 species indicated impingement of only 526 individuals.

This number represented less than 0.4% of the annual pro-jection for all species combined.

l'lthough impingement projections were low, many of the species included in tables 22-43 are fairly abundant in the lake (RGE,

1978, 1979a, 1979b).

Since, however, some of these species inhabit. the shallower lake regions (sunfish, bluegills) or are strictly bottom dwelling fish (darters, dace) it is likely that various habitat preferences greatly reduce the vulnerability of some species to impingement.

C.

Com arison of Im in ement from 1973-1977 Impingement levels for 1977 were the lowest recorded at the Ginna Station since studies began in 1973.

This situation is mainly related to a fairly steady decline of annual impingement projections for the numerically dominant alewife.

Because of this decline, the alewife, which accounted for 92% of the total fish impinged in 1974, represented only 49% of the combined 1977 projection for all species.

Table 45 provides a comparison of annual impingement projections genera-ted for the period of 1973-1977 for the ten most frequently impinged species.

An analysis of the long-term impingement abundance trends exhibited by various species follows below.

l.

Alewife Overall, impingement sampl'ing has indicated that alewife population abundances have decreased over the years sampled (Figure 22).

Alewife projections for 1977 represent.

only 4% of the number of alewives estimated to have been impinged in 1974.

While the reasons for the observed decline are unclear, it appears that predation by salmonids may in part be responsible.

The approximate numbers of salmonids planted in New York waters of Lake Ontario during the years 1971 to 1977 are provided in Figuie 23. If it is assumed that salmonids, which are stocked at the age of one year or less, do not become significant predators until approximately two years after being released in the lake, an interesting relation appears to exist.

With the ex-ception of alewife projections for 1976, it appears that the numbers of alewives impinged during the years 1973 to 1977 have varied inversely with the numbers of salmonids stocked from 1971 to 1975 (Figures 22 and 23).

This re-lation indicates that during most years, as the numbers of salmonids stocked have increased, the numbers of alewives impinged have decreased accordingly.

It should be mentioned that the comparative lower numbers of alewives impinged in 1977 may be misleading.

As noted pre-viously, peak abundances of alewives were impinged in 1977 during a period characterized by reduced water intake flows.

It is conceivable, therefore, that larger numbers of this species could have been impinged if normal intake flows had been experienced.

Also, a large number of alewife larvae were collected in entrainment samples in 1977.

The large number of larvae encountered may be an indication of a strong 1977 year-class of alewives.

2.

Smelt

/

Smelt impingement levels have declined at a fairly steady rate over the years studied (Figure 24 ) and may, as for alewives, reflect reduced population abundances due to salmonid predation.

The reduction of 1977 impingement levels also may reflect a relation to water intake flows.

Smelt generally move inshore from deeper waters to spawn during the same period that was characterized by reduced water intake levels during 1977.

It is conceivable that greater numbers of smelt could have been impinged if normal intake flows were experienced.

3.

Threes ine Stickleback The projected impingement of 6,415 sticklebacks in 1977 represents only 4% of the numbers projected in 1976 (147,320 sticklebacks).

However, projected 1977 levels are comparable to levels found in 1973 and 1974 (Figure 25 ). It is, therefore, felt that the observed variations may reflect normal population fluctuations.

4.

Mottled Saul in Comparable numbers of mottled sculpins have been projected to be impinged during all years studied (Figure 26 ).

This situation indicates that population abundances have re-mained fairly stable and that impingement has an insignificant impact on the stability of sculpin populations.

5.

~Sottai1 Shiner Annual projections for spottail shiners declined steadily from 1973 through 1975, then increased slightly in 1976 (Figure 27).

Comparably.-numbers to those projected for 1976 were projected to be impinged in 1977.

It is possible that after an initial decline (1973-1975) pop-ulation abundances in the area have become stabilized at a lower level.

The period studied,

however, may be too short to provide conclusive evidence.

6.

Lake Chub Impingement, sampling has indicated the general reduction in lake chub abundances over the years studied (Figure 28).

The greatest number of lake chubs were impinged during 1973.

Impingement projections for 1974 and 1975 were at comparable reduced levels from 1973.

Comparable reduced levels were again found in 1976 and 1977.

Scott and Crossman (1973) indicated that lake chubs may be preyed upon in considerable numbers by lake trout.

Recent stocking of lake trout may, therefore, be responsible in part for the observed reductions.

7.

Gizzard Shad Comparable numbers of gizzard shad have been pro-jected to be impinged during all years studied.

It appears, therefore, that impingement has little impact on the stability of gizzard shad abundance.

8.

Emerald Shiner Impingement projections from 1973-1977 have been characterized by an initial increase followed by a steady

decrease (Figure 29).

Impingement projections for 1977 were comparable to those projected for 1973.

This situation may reflect normal fluctuations of population abundances.

9.

White Bass Impingement projections for 1977 were comparable to those projected for 1973 and 1974 (Figure 30).

The various impingement levels observed over the years studied appear to indicate normal population fluctuations.

10. Smallmouth Bass With the exception of 1976, impingement projections for smallmouth bass have declined steadily over the years studied (Figure 31).

However, since the annual numbers impinged have been small, impingement is not likely re-sponsible for the observed decline.

ll. Johnn Darter Impingement of johnny darters increased steadily from 1973 through 1976 (Figure 32).

Impingement projections for 1977 were down 78% from 1976 levels.

Projections for 1977 were comparable to 1973 projections.

This situation may indicate a cyclic pattern of population abundances for johnny darters.

12.

Salmonids Salmonids have always been impinged in low numbers (Figure 33).

Brown trout first appeared in 1974 when three were projected and have been collected consistently since.

Rainbow trout, although collected regularly in gill nets, have never been impinged.

Brook trout were impinged only in 1975.

Lake trout first appeared in 1975 and have been impinged at somewhat greater frequencies since.

Coho salmon were collected only in 1976 and chinook salmon first appeared in 1977.

The increase in impingement rates from 1974-1976 was likely due to increased stocking rates.

13. White Perch Impingement of white perch during the years studied was characterized by an initial decline followed by a steady increase (Figure 34).

Numbers impinged in 1977 were comparable to 1973 projections.

The observed abundance patterns of annual projections may indicate normal population fluctuations.

BIBLIOGRAPHY Graham, J.J.

1956.

Observations on the alewife, Pomolobus pseudo-

~haren us (Wilson), in freshwater

. Univ. Toronto Stud. Biol.

Ser.

62, Publ.

Ont. Fish.

Res.

Lab.

74:

43.

Jolliff, T.

1978.

The Lake Ontario trout. and salmon program.

Summary Report of the NYS Dept. Environmental Conservation, 9 pp., April.

Mackey, H.H.

1958.

The American Smelt (Osmerus mordax).

Sylva 14:

25-33.

Murarka, I.P.

and R.K. Sharma.

1974.

Sampling design for fish impingement at Nine Mile Point tJnit One.

Argonne National Lab, unpublished.

Scott, W.B. and E.J.

Crossman.

1973. Freshwater Fishes of Canada.

Fish.

Res.

Bd. Canada, Bulletin 184.

Smith, H.M.

1907.

The fisnes of North Carolina.

N.C. Geol.

Econ.

Survey 2:

453 pp.

Smith, L.L. Jr.

and R.H. Kramer.

1964.

The spottail shiner in Lower Red Lake, Minnesota.

Trans.

Am. Fish.

Soc.

93:

35-45.

VanOosten, J.

1953.

The smelt, Osmerus mordax (Mitchill). Mich.

Dept. Conservation, Fish Div. Pamphlet No. 8, March.

Wells, L.

1968.

Seasonal depth distribution of fish in South-eastern Lake'ichigan.

Fishery Bulletin 67:

1-15.

Rochester Gas 6 Electric Corp.

1978.

1977 Fish Tagging Program Data Report, Ginna Nuclear Power Station, RGE Report'58-13-065.

1979a.

1977 Fish Program Analysis Report, Ginna Nuclear Power Station.

RGE Report NB-13-067.

1979b.

1977 Fish Tagging Program Data Report, Sterling Site.

RGE Report 58-11-077.

1979c.

1977 Impingement Program Data Report, Ginna Nuclear Power Station.

RGE Report 4B-13-068.

1980.

1977 Fish Distribution Program Analysis Report, Ginna Nuclear Power Station, RGE Report gB-13-075.

f,

Table 1

Taxonomic Breakdown of Fish Species Projected to be Impinged in 1977 Class Osteichthyes (Bony Fishes)

Order Anguilliformes Family Anguillidae AncCuilla rostrata

{American Eel)

Order Clupeiformes Family Clupeidae (Herrings)

Alosa pseudoharengus (Alewife)

Dorosoma cepedianum (Gizzard Shad)

Order Salmoniformes Family Salmonidae (Trouts)

Salmo trutta (Brown Trout)

Salvelinus n~ama cush (Lake Trout) z Family Osmeridae (Snelts)

Osmerus mordax (Rainbow Smelt)

Family Umbridae (l1udminriows)

Umbra limi (Central Mudminnow)

Order Cypriniformes Family Cyprinidae (Minnows and Carps)

Couesuis plumbeus

{Lake Chub) t<otropis atherinoides

{Emerald Shiner)

~((otro is hudsonius (Spottail Shiner)

Gvu>>rinus c~ar io (Carp)

Carassius auratus (Gol dfish) i(~otro is ~silo torus (Spotfin Shiner)

Prime hales notatus (Bluntnose (4innow)

Family Catostomidae (Suckers)

Catostomus conmersoni (Elhite Sucker)

Moxostoma

~S.

(Redhorse Sucker)

Order Siluriformes Family Ictaluridae (Catfishes)

Ictalurus nebulosus (Brown Bullhead)

Ictalurus gunctatus

{Channel Catfish)

Order Percopsiformes Family Percopsidae (Trout-Perches)

Order Gasterosteiformes Fanily Gasterosteidae (Sticklebacks)

Gasterosteus'culeatus (Threespine Sticklebackl Culaea inconstans (Brook Stickleback)

Order Perci formes Fanily Percichthyidae

{Temperate Basses)

Morone aner icana {iihite Perch)

(intone ~chr so~is

(((hite Bass)

TABLE; 1 (con't)

GINNA NUCLEAR PGVIER STATION IHPINGEHENT S PLCI1;S LIST Family Centrarchidae (Sunfishes)

Micropterus dolomieui (Smal lmouth Bass) tlicroBterus salmoides (Larg smooth Bass)

~Le onis gihhosus (Bumpkinseed}

~Le omis macrochirus (Bluegill)

Amb~lo lites rupestris (Rock Bass)

Pomoxis n~cCromaculatus (Black Crappie)

Family Percidae (Perches)

Perca flavescen (Yellow Perch)

Etheostoma n~i rum (Johnny Darter)

Etheostoma flabellare (Fantail Darter)

Stizostedion vitreum vitreum (Walleye)

Family Cottidae (Sculpinsi Cottus bairdi (blottled Sculpin)

Cottus cocCnatus (Slimy Sculpin)

Family Sciaenidae (Drums)

BBlodinotus grunnlens (Breshsater Drum)

Order Semionotiformos Family Lepisosteidae (Gars)

LopisGst:eus osseus (Longnose Gar)

XMPXNGI&ENZ SUM%6K FOR TOZAL R.E.

GXNNA NUCLEAR STATXON, 1977 NUMBER COURAGED NUMBER PMHXTED 8 ACZUALLY OOUNTlZ)

AUGUST SEPTEMBER OCKBER NViTFMBER DEQM3ER 1143.00 921.00 972.00 2953.00 23182.00 4002.00 1184.00 272.00 835.00 11122.00 803.00 3321.00 7235. 50 3843.00 3120.00 10771.50 63218.50 9905.50 3134.00 676 F 00 3186.00 27889.00 3069.00 10919.00

15. 80 23.97 31.15 27.41 36.67 40.40 37.78 40.24 26.21 39.88 26.16 30.41 50710.00 146967.00 34 ~ 50

IMPINGEMENT

SUMMARY

'OR ALIXIFE R.E.

GINNA NUCLEAR STATICH, 1977 NUMBER COUNTED NUMBER PM31KTED 8 ACZUALLY COUNT%)

JANUARY FEBHJKK MARCH APRIL AUGUST SEPTEMBER 0CZOBER NONM3ER DECEM%M 0.00

9. 00 130.00 1859.00 19858.00 2320.00 70.00 20.00 281.00 728.00 21.00

3. 00 25299.00

3. 00 59.50 395 F 00 6654.50 55277.00 6038.00 256.00 54.00 726.50 2293.00 83.50 16.00 1

71856.00 0.00 15.13 32.91

27. 94 35 92 38.42 27.34 37.04 38.68 31.75 25.15 3.8.75 35.21 Table 4

Correlation Coefficients for Comparisons of Impingement Rates with Environmental Factors During Seasonal Periods of Abundance.

~Seciee Alewife Smelt Stickleback Period 1m~ incmed Jan-Dec Apr-May Apr-June Jan-Dec Jan-June Mar-May Oct-Dec Jan-Dec Apr-July Wind

d. f.

~Seed 85 0.138 17 0.376 29 0.296 112 0.145 52 0.180 29 0.354 28 0.177 79

0. 186 39 0.360*

Nave Heicent 0.216*

=

O.S22*

0.476**

0.230*

0.248 0.479**

0.472**

0.328*

O.S48**

Water T~em

-0. 094 0.119

-0.112

0. 013

-0. 003

0. 300 0.520**

0.037

-0.113 Wind Direction

-0.146

-0.286

-0.243 0.128 0.103 0.141 0.363*

-0.001 0.033 Cloud Cover 0.007 0.061 0.061

-0.004 0.108

-0.001

-0.127

-0.222*

-0.197 Mottled sculpin Spottail shiner Emerald shiner Gizzard shad Lake chub White perch White bass Rock bass Yellow perch Lake trout Jan-Dec Jan-Dec Jan-Dec Jan-Dec Jan-Dec Jan-Dec Jan-Dec Jan-Dec Jan-Dec Jan-Dec 115 0.120 88 0.193 30 0.108 25 0.061 76 0.224*

37 0.165 20 0.105 20 0.523~

20 0.216 13 0.477 0.016 0.268*

0. 152 0.173 0.325**

0.300 0.050 0 556**

0.340 0.582*

-0. 205*

0.150

-0.165

-0.023 0.084 0.289

-0.185 0.012 0.088 0.198 0.200 0.110 0.149 0.308 0.416

-0.171 0.138 0.263

-0.205

, 0.190

0. 139

-0. 158

-0.343

-0.016

-0.076

-0.063 0.026 0.190

-0.279 0.255 significant at; 958 confidence level

- significant at 99% confidence level

IMPINGEMENT SUMMA'OR SMELT R.E.

GINNA NUCLEAR STATICN, 3.977 NUMBER COUNTED NUMBER PBMI3CHK)

JANUAHY FEBKlAEK

ÃQ<CH APR1:L MAY AUGUST SEPT8%ER OCXOB1 R NOV1"MB1"R 836.00 806.00 516 00 642.00 1545.00 1211.00 160. 00 146. 00 366.00 5382.50 3318.00 1646.50 2428.00 3983.50 2668 F 00 362.00 358.00 1689'0 404.00 1770.00 1755.50 5888.50 6579.00 16372.00

15. 53 24.29 31.34 26.44 38.78 45.39 44.20 40.78 21.66 40.18 23.01 30.06 14981.00 45852.00 32.67 Table 6

GINNA NUCLEAR POKER STA XON CONDENSER COOLXNG A~1ERAGE INTAKE ItATCR TE".tPERATURES FOR ECOLOGXCAL S:.UDY DATES XN 1977 January 3

34'F January 4

35'F January 5

35'F January 10 34'F January ll 34'F January 19 34'F January 20 34 F

January 24 37'F January 25 37 F

January 26 35 F

February 1

34'F February 2

35'F February 7

34 F February 8

33'F February 9

33 F

February 14 35 F

February 15 34 F

February 16 34OP February 22 35 F

February 23 - 35'P February 24 35 F

February 28 35 F

April 6

39 F

April ll 41'P April 12 38 F

March 1

33'F March 2

33'P March 3

35'F March 7

35'F March 8 35'F March 9

36'F March 14 36'F Parch 15 37'P March 16 38 F

March 17 39'F March 21 35'F March 22 37'F March 23 37'F March 28 38'F March 29 37 F

>larch 30 38'P March 31 40'F April 4

39'F April 5

38'F

Table 6

GINNA NUCLEAR PONER STATION COIIDENSER COOLING MIRAGE INTAKE NATHR TEMPERATURES FOR ECOLOGICAL STUDY DATES Ill 1977 (continued)

April 13 41'F April 14 39'F April 18 37'F April 19 - 39 F

April 20 40'F April 25 38'F April 26 38'F.

April 27 38 F

April 28 37 F

Nay Hay Hay Hay flay 2

42oF 3 <<41'F 4

41 F

5 42oF 9

-,, 46oF May 10 46'F Nay 11 44'F.

Nay 12 44oF Hay 15 47'F IIay 16 46oF Hay 17 47'F Hay 18 49'F Hay 19 51'F

~Cay 23 49 F

Hay 24 SO'F L'(ay 25 S3'F Hay '6 52'F I'fay 31 45 F

June 6 49'F June 7 - 50'F.

June 8

52'I'Tune 9

52'F

,June 12 55'F June 13 - 56'F June 14 55'F June 15 55'F June 16 55'F June 20 - 56'F June 21 - 59'F June 22 60'F

.Tune 23 59'F June 27 65'F June 28 - 63'F June 29 67'F June 30 60'F

.,Tuly 5

July 6

July 7

July 11 July 12 July 13 July 14 Jul i 17 July 18 July 19 July 20 July 21 July 25 July 26 July 27 July 28 August 1

August 2

August 3

August 4

August, 8

August, 9

63oF 62oF 54'F 55 F

56oF 62oF.

66 F

65'F 69oF 73oF 73 F

7SoF 74oF 73oF 72oF 71oF 7loF 72oF 70oF 71oF 72oF 73oF

Table 6

(con't)

GIHNA NUCLEAR POWER STATION CONDFNSER COOLING A~IEBAGE IN AKE WATER TENPFRATURES POR COLOGICAL ST(3DY DATFS IN 1977 (continued)

August August August August August August August August August August August August August August 10 72'P 11 71oF 15-73F 16-72F 17 7loF 18 70oP 2P 67oP 23 66oP 24 67oP 25 66oF 28 -

68oP 29 69oP 30 70oP 31 - 69oF September September 12 66 F 13 65'P September 14 65'P September 15 65'P September 1

68 F September 6

71'F September 7

71'F September 8

65'F October 3

60oF October 4

59'F October October 5

59oF 6 59oF October 11 55'F October 12 54'F October 13 54 F

Octobex 17 53'F October 18 53'F October 19 54'F October 20 55'P September 16 65'F September 18 65'F September 19 65'P September 20 62'P September 21 62'F September 22 61'F September 25 45'F September 26 45'F September 27 47'F September 28 58'F September 29 60'F II

.able 6

(con')

GINNA NUCLEAR PO1/ER STATION CONDENSER COOLING AVFRAGE IN AI;E NATFR TE."1PERATUBES FOR ECOLOGICAL S.,UDY DATFS IN 1977 (continued)

October 23 S4'F October 24 S4 F

October 25 54'F October 26 55 F

October 27 SS~F October 31 46'F November 1

4 6'F November 2

47'F November November 3 - 47~F 7

44 F

November 8

44'F November 9

44'F November 10 44 F.

November 14 45'F November 15 49'F November 16 49'F November 21 48'F November 22 48'F November 28 43'F November 29 45 F

November 30 45'F December 5

43'F December 6

41'F December 7

38'F December 8

38'F December 12 40'F December 13 40'F December 14 40'F December 15 40'F December 19 - 38 F December 20 39'F December 21 38'F December 22 39 F

December 23 38'F December 27 37 F

December 28 36 F

December 29 36 F

TABLE 7

IMPINGEMENT

SUMMARY

FOR STIQGZZACK R.E.

GINNA NUCLEAR STATICN, 1977 NUMBER

'OUFZED NUMBER PM3tXTED AUGUST SEPTEMBER OClQBER NQVlXBER DECEMBER 9.00

6. 00

54. 00 146.00 1200.00 271.00 466.00 4.00 1.00 193. 00 59.00 130.00

90. 50 35.00 177.50 542.50 2585.50 613.50 1214.00

8. 00 61.00 484.50 201.00 402.50 9.94 17.14 30.42 26.91 46.41 44.17 38.39 50.00

1. 64 39.83 29.35 32.30 2539.00 6415.50 39.58

TABLE 8

IMPINGI&ENTSUMMA'OR MMLED SCULPIN R.E.

GINNA, NUCL'ERR STATE/

NUMBER PBDZZICZED 8 ACI.'UGLY OOUNTED t

'UGUST SEPTIM3ER CCKBER NOVEMBER DECKER 165.00 63.00 55.00 72.00 312.00 139.00 110.00 43.00 81.00 256.00 192.00 192.00 720.00 255.50 184.00 271.00 761.50 373.00 302.00 99.00 213.50 675.50 556.00 592.00 22.92 24.66 29.89 26.57 40.97 37.27 36.42 43.43 37.94 37.90 34.53 32.43 1680.00 5003.00 33.58 I

TABLE 9

IMPINGEMENT

SUMMARY

FOR SPOZTPZL SHINER R.E.

GINNA. NUCLZAR STATION, 1977 NUMBER COUNXtZ)

NUMBER PRCLGKI'ED 8 ACZUALLY COUNT1K)

AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER

15. 00

9. 00 51.00 84.00 67.00 20.00 283.00 49.00 88.00 1082.00

8. 00

85. 00

95. 00

49. 00 178.00 299.00 153.50 56.00

'47.00 135.00 360.50 2402.50 28.50 297.00

15. 79 18.37 28.65

28. 09

43. 65 35.71 37.88 36.30 24.41 45.04 28.07 28.62 1841.00 4801.00 38.35,

TABIZ 10 IMPING1M'"NT SUNSET FOR NHITE PEKH R.E.

GINNA NUCL'EAR STATICS, 1977 NUMBER PM3XCZED t ACTUALLY OOUNTED AUGUST RPTEMBER O~R NOVEMBER DELIBER 1.00 0.00 4 ~ 00

3. 00

5. 00

2. 00 24.00

0. 00

0. 00 1498.00 51.00 180.00 32.50

0. 00 14.00 3.3. 50

.15. 00

6. 50 64.00 0.00 22.00 3765.50 3.67. 00 619.00

3. 08

0. 00 28.57 22.22 33.33 30.77 37.50 0.00 0.00 39.78

30. 54 29.08 1768.00 4719.00 37.47

TABLE 11 IMPINGEMENT

SUMMARY

FOR LAKE CHUB R.E.

GINNA NUCUWR STATIGN, 1977, NUMBER CORFU NUMBER PBMZCZfK)

% ACI.'UALLY COUNTED JANEQK FEBRI3ARY MARCH APRIL JUNE AUGUST SEPTEMBER OCTCBER NOVEMBER DKZMBER

25. 00 16.00 125.00 109.00 135.00 20.00 37.'00

2. 00 4 ~ 00 379 00 16.00 85.00 183. 50

70. 00 398. 00 426. 00 317. 00 79.50

,103.00

6. 00 44.00 887.00 74.00 278.50

13. 62 22.86 31.41 25.59 42.59 25.16 35.92 33.33 9.09 42.73 21.62 30.52 953.00 2866.50 33.25

TABLE 12 IMPINGEMENT

SUMMARY

FOR GIZZARD SHAD R.Z. PINNA NUCLEM< STAZIm, 1977 MOPE NUMBER PKG1XTED 8 ACXUALLY COUNTED JANt:3MY FEBESAHY AUGUST SEPTEMBER OCTOBER NOVEMBER D1KEMBER 1.00 1.00

2. 00 2.00 0.00 0.00 0.00 1.00

1. 00 164. 00

25. 00 284.00

66. 00

7. 00

6. 50

7. 50 0.00 0.00

0. 00 3.00

33. 00 399.50

90. 50 868.00 l.52 14.29

30. 77

26. 67

0. 00-0.00

0. 00 33.33

7. 69 41.05 27.62 32.72 481.00 1461.00 32.92

TABLE 13 IMPINGEMENT SUMKg6'DR ENFOLD SHINER R.E.

GINNA, NU(XZ'AR STATION, 1977 NUMBER COGNIZE)

NUMBER PEKO1XTED ACZUALLY COUNTED JANUARY FEBHEBE MMES APRIL AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER 42.00 2.00 6.00 0 00

0. 00 0.00 1.00 1.00 5.00 67.00

3. 00 225.00 274.50 10 50 21.00 0.00

0. 00 0.00 1.00 1.00 15 50 175.50

9. 50 799.00

15. 30 19.05

28. 57 0.00

0. 00 0.00 100.00 100.00 32.26 38.18 31.58 28.16 352.00 1307.50

26. 92

TABLE 14 IMPINGEMENT

SUMMARY

FOR WHITE BASS R.E.

GINNA NUCLEAR STATION, 1977 NUMBER COUNTY%)

NUMBER PRO31XTED

% ACZUALLY COUNTED AUGUST SEPTEMBER OCIX3BER NOVEMBER DECEMBER

16. 00 2.00 1.00 1.00

0. 00

0. 00 0.00, 0.00 0.00 31.00

3. 00

-306.00 151. 50 7.00 3.50 3.50 0 F 00

0. 00

0. 00 0 F 00

1. 00 84.50, 16.00 956.00

10. 56 28.57

28. 57 28,57

0. 00

0. 00 0 F 00 0.00 0.00 36.69 18.75 32.01 360.00 1223.00 29.44 TABLE 15 IMPINGEMENT STEMMA FOR YEIZlM "PEKING'.E.

GINNA NUCZKK STATICNi 1977 NUMBER COUNTED NUMBER PEKQECZlK)

% ACTRESSY COUNT1%

AUGUST SEPHRIBER OCIMBER NOVEMBER DECEMBER

4. 00 0.00 2.00 3 ~ 00

0. 00 0.00 0.00 1.00

1. 00 51.00

6. 00

30. 00 0.00 7.00 10.50 0;00 0.00 0.00

3. 00 12.00 107.00 24.50 18.00 13.33 0.00

28. 57 28.57

0. 00 0.00 0.00 33.33

8. 33 47.66 24.49 33.33

74. 00 212.00 34.91 TABLE 16 IMPINGEMENT

SUMMARY

FOR JOHNNY DARTER R.E.

GINNK NUCUWR STAZICN, 1977

Ã2%ER COUNTED NUMBER PM31KTED 8 ACTUALLY COUNTED JANUARY FEBRuARY MAILS APRIL AUGUST SEPTIM3ER OCI.'OBER NOVEMBER DECEMBER 1.00

0. 00 0.00 3.00 29.00 11.00 12.00 0.00

0. 00 4.00 0.00 1.00 4.00 0.00

0. 00 12.00 66.50 38.50 26.00 0.00

0. 00

8. 00

0. 00

3. 00

25. 00 0.00 0.00

25. 00

43. 61

28. 57 46.15 0.00

0. 00 50.00

0. 00 33.33 61.00 158.00 38.61 TM3LE 17 IMPINGEMENT SUMMATE FOR LAKE TKUZ R.E.

GINNA NUCLEAR STATION, 1977 NUMBER PRQ3ZCH93 0 ACZUALLY

- COUHZH3

6. 00 0.00

6. 00

13. 00 F 00 0 F 00 0.00 42.00 0.00

21. 00

45. 50 7.00 2.50 0.00 14.29 0.00 28.57 28.57 28.57 0.00 0.00 AUGUST SEPTEMBER OCI.'OBER NOV1M3ER DECEMBER

0. 00 0.00 0.00 1.00 8.00 0.00 0.00 0.00 5.50 26.00

0. 00 0.00 0.00 l8.18 30.77 36.00 149.50 24.08 IMPINGEMENT STRAIT FOR BKMN TROUT R.E.

GINNA, NUClZAR STATICN, 1977 NUMBER COUPE')

NUMBER PRORATED

% ACKALLY COUNTED JANUARY FEBRUARY MARCH'UGUST SEf?TKZBER OCTCBER NOVfM3ER D1KEZBF~R

0. 00 0.00

0. 00

0. 00 0.00 0.00 0.00 0.00

0. 00

1. 00 1.00

0. 00

0. 00 0.00 0.00

0. 00

3. 00 4.00 3.00

0. 00 0 F 00

0. 00

0. 00 0.00 0.00 0.00 0.00

0. 00 33.33 25.00 33.33 3.00

10. 00 30.00

TABLE 19 IMPINGEMENT

SUMMARY

FOR CHINOOK SAIMON R.E.

GINNA, NUCLEAR STATION, 1977 NUMBER PRM1KT12) 8 ACZUALLY COUNTED JANUS FEBREGS MARCH APRIL 0.00 0.00 0.00 0.00

0. 00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 AUGUST SEPTEMBER OCXGKR NQTEXBER DEFAMER 0.00

1. 00 0.00

0. 00 0.00

0. 00

0. 00 0.00

3. 00 0.00

0. 00 0.00

0. 00

0. 00 0.00 33.33 0.00 0.00 0.00 0;00

0. 00

1. 00

3. 00

33. 33 TABLE 20 IMPXNGDKKZ

SUMMARY

FOR SMhLGNXTZH BASS R.E.

GINNA NUCXZAR STATICN, 1977 NUMBF&

COUNTED NUMBER PRC01KTED

% ACTUALLY CGUNTlX)

JARlAHY FEBRUARY MARCH APRIL AUGUST SEPTEMBER CCZCjBER NOVEZEKR DEGAS BER

2. 00

0. 00 1.00 0.00 0.00

0. 00

2. 00 1.00

1. 00

3. 00

1. 00 2.00

15. 00

0. 00

3. 50 0 F 00

0. 00

6. 00 1.00

4. 50

8. 00 3 ~ 50 6.50 13.33 0.00 28.57 0.00 0.00

0. 00 33.33 100.00 22.22 37.50

28. 57 30.77 13.00 48.00 27.08

~

TABLE 21 IMPINGEMENT SUPÃARY FOR BRCNN BUL'MRD R.E.

GINNA. NUCURR STATION, 1977 NUMBER COUPEK NUMBER PKOECZED

% ACIVALLY COUNTED AUGUST S1&MEMBER OCZOBER NOVEMBER DECEMBER

0. 00

l. 00 0.00 1.00

0. 00

l. 00

0. 00 0.00 0.00

1. 00

0. 00 2.00 0.00

7. 00

0. 00

3. 50

0. 00

1. 00

0. 00

0. 00 0.00 3.00 0.00

7. 00

0. 00 14.29

0. 00 28.57

0. 00 100.00'.

00 0.00 0.00 33.33 0.00 28.57

6. 00

21. 50

27. 91 TABLE 22 IMPINGEMENT

SUMMARY

FOR KCK BASS R.E.

GINNA, NUCLEAR STATICN, 1977 NUMBER PRMKCZED JAN%6K FEBHUKf6'AEK2i APRIL AUGUST SEPTlM3BR OCZCBER NCMXBER DECEMBER

13. 00

2. 00

9. 00 6.00

0. 00 0.00

8. 00 3.00

0. 00

27. 00

3. 00

8. 00 103.50

7. 00 31, 50 21.00

0. 00

0. 50 24.00

7. 00

6. 00 70.50 10.00 33.50 12.56

28. 57

28. 57 28.57 0.00 0.00

33. 33.

42.86

0. 00

38. 30

30. 00

23. 88

79. 00 314.50 25.12

TABIZ 23 IMPINCBWEÃZ

SUMMARY

FOR TKUT PERCH R.E.

GINNA. NUCLEAR STATHN, 1977 NUMBER COUNTl&

NUMBER PRM1!CZED

% ACTUMZY CDUNTlK)

JMUARY FEBRUARY MARCH APRIL AUGUST SEPTEMBER QCXQBER NOVAE R DECEMBER 1.00 1.00 5.00

8. 00

19. 00 7.00 3.00

0. 00 0.00 6.00

3. 00

10. 00

7. 00

3. 50 17.00 28.50 37.00 26.00 7.00 0.00

0. 00

16. 00 16.00 34.00 14.29 28.57 29.41 28.07 51.35 26.92 42.86 0.00

0. 00 37.50 18.75 29.41 63.00 192.00

32. 81 TABLE 24 IMPINGEMENT

SUMMARY

'OR NHITE SUCKER R.E. GINNh NUCL'EM< STATION, 1977 NUMBER PKGZCZlK)

% AVKALLY COUNTED AUGUST SEPTEMBER OCKBER NOVEMBER DECEMBER 0.00

l. 00

l. 00 1.00 1.00

0. 00

5. 00 1.00

4. 00

19. 00 3.00 5.00 0.00

3. 50 2,00 5.00 1.00 0.00 15.00 1.00 10.00

48. 00

9. 50 16.50 0.00 28." 57

,50.00 20.00 100.00 0.00 33.33 100 F 00 40.00 39.58

31. 58

30. 30 41.00

36. 77 TABLE 25 IMPINGEMEPZ

SUMMARY

H)R PUMPKINSEED R.E.

GINNA NUCZZ3K STATION, 1977 NUMBER COUNTED NUMBER PRCNXTED t ACZUALLY COUNZED JANUARY FEBHlARY MARCH APRIL AUGUST SEPTlM3ER OCTOBER NOVEMBER

0. 00

0. 00 1.00

0. 00

0. 00 0.00

1. 00

7. 00 0.00 2.00

0. 00 3.50 0.00 0.00

0. 00

0. 00 2.00 22.50 1.00 0.00 0.00

28. 57 0.00 0.00

0. 00 0.00

0. 00 50.00 31.11 0.00 D1ZEH3ER 6.00 18.00 33.33

15. 00 49.00 30.61 TABLE 26 IMPINGEMENT

SUMMARY

'OR BLUEGILL R.E.

GINNA NUCL'EAR STATIClN, 1977 NUMBER COUN'.KD NUMBER PE~KE93

% ACTUALLY COUNTiZ)

AUGUST K~M3ER CCTCBER NOV1M3BR IMK3&BER

0. 00 0.00

0. 00

.ll.00

3. 00

0. 00

0. 00 0 F 00

0. 00

31. 00 12.50

0. 00

0. 00 0.00

0. 00 35.48

.24. 00

0. 00

14. 00

43. 50 32.18

TABLE 27 IMPINGEMENT

SUMMARY

FOR BLMX CRAPPIE R.E.

GINNA. NUCL'ERR STATICS, 1977 NUMBER COUN'%UMBER PRQKCQK)

% ACZUALLY COUNTEX)

JANUAHY FEBRUAHY AUGUST SEPTEMBER OCTOBER N(MME DECEMBER 0.00

0. 00 0.00 0.00 0 ~ 00 0.00

0. 00

0. 00 4.00 0.00 2.00 0.00 0.00

0. 00 0.00 0.00 0.00 0.00

0. 00 0.00 14.00 0.00 7.00 0.00 0.00

0. 00 0.00

0. 00 0.00 0.00

0. 00 0.00

28. 57 0.00 28.57

6. 00 21.00 28.57

TABLE 28 IMPINGEMENT

SUMMARY

FOR FAÃZAILDAHXER R.E.

GINNA. NUCLEAR STATION, 1977 NUMBER COUÃHK)

NUMBER PEUJECZ1K) 8 ACZUALLY COUNZED AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER

0. 00 0.00

0. 00

0. 00 2.00 0.00 0.00 0.00 0.00

1. 00 0.00 0.00

0. 00

0. 00 0.00

0. 00 7.00 2.50 0.00

0. 00

0. 00 0.00

0. 00 0.00 0.00 0.00 28.57 0.00 0.00 0.00 0.00 100. 00

0. 00 0.00 3.00

10. 50

28. 57

TABLE 29 R.E. GINNA NUCURR STATICN~ 1977 NUMBER COtRTZED NUMBER PRM1KTED 8 ACZGUZY COUNTlK)

MARCH APRIL 0.00 0.00

0. 00

0. 00 0.00 0.00

0. 00 0.00 0.00 0.00 0.00 0.00 0.00 JUNE AUGUST SEPTEMBER OCZQBER KMM3ER DECEMBER

0. 00 0.00

0. 00 1.00 2.00

0. 00 0.00

0. 00 2.00 5.50 0.00 0.00 0.00

0. 00 0.00

50. 00 36.36 0.00 0.00 3.00 7.50 40.00 TABLE 30 IMPINGEMENT

SUMMARY

FOR LONGNOSE DACE R.E.

GINNA. NUCKZDR STATICN, 1977 NUMBER COUNTE9 NUN3ER PE6319CZED 0 ACZUALLY COUNZED AUGUST SEPTEMBER OClQBER NCMMBER DEGM3ER

1. 00

1. 00 0.00 0.00

0. 00 0.00

0. 00

3. 50

0. 00 0.00 0.00

0. 00 0.00 0.00 0.00

0. 00

0. 00 0.00

28. 57

28. 57 0.

00'.00 0.00 0.00 0.00 0.00 0.00

0. 00 0.00 0.00 2.00 7.00 28.57

TABLE 31 IMPINGEMENT

SUMMARY

FOR CHANNEL CATFISH R.E.

GINNA NUCLEAR STATION, 1977 MONTH NUMBER COUNTED NUMBER PROJECTED ACTUALLY COUNTED JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER

2. 00

0. 00 0.00

0. 00

15. 00

0. 00

0. 00 n.oo

0. 00

0. 00 0.00 0.00 0.00

13. 33

0. 00

0. 00 O. 00 O. 00

0. 00 0.

00'.

00

0. 00

0. 00 TOTAL

2. 00

15. 00

13. 33

TABLE 32 It4PINGEMENT

SUMMARY

FOR GOLDFISH R.E.

GINNA NUCLEAR STATION, 1977 MONTH NUMBER COUNTED NUMBER PROJECTED ACTUALLY COUNTED JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER

0. 00

o. on

0. 00 0.00 0.00 0.00

n. 00

0. 00

1. 00

0. 00

2. 00 0.00

0. 00

n. 00 0.00 0.00 0.00 n.no 0.00 3.00

0. 00

8. 00

0. 00

0. 00 33.33 n.oo 25.00 TOTAL

3. 00 11.00

27. 27 TABLE 33 IMPINGEMENT

SUMMARY

FOR MUDMINNO'h1 R. E.

GINNA NUCLEAR STATION, 1977 MONTH NUMBER COUNTED NUMBER PROJECTED ACTUALLY COUNTED JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER

0. 00

2. 00

0. 00 0.00

0. 00

1. 00 0.00 0.00

7. 00

0. 00

4. 00

0. 00

28. 57

0. 00

25. 00 TOTAL

3. 00

11. 00

27. 27 TABf E

~4 IMPINGEMENT

SUMMARY

FOR CARP R.E.

GINNA NUCLEAR STATION, 1977 MONTH NUMBER COUNTED NUMBER PROJECTED ACTUALLY COUNTED JANUARY FEBRUARY MARCH APRIL RAY JULY AUGUS r SEPTEMBER OCTOBER NOVEMBER DECEMBER 0.00

0. 00

2. 00

0. 00 0.00

0. 00

0. 00 0.00 1.00

7. 00

0. 00

28. 57 TOTAf

2. 00

8. 00

25. 00 TABLE 35 IMPINGEMENT SUi4NARY FOR FRESHNATER DRUM R. E.

GINNA NUCLEAR STATION, 1977 i40NTH NUMBER COUNTED NUMBER PROJECTED ACTUALLY COUNTED JANUARY FEBRUARY

~

HARCH APRIL ii1AY JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECENBER

0. 00

0. 00 0.00

0. 00

1. 00

l. 00

0. 00

0. 00 O. 00

0. 00

n. 00 0.00 0.00 0.00

l. 50

5. 50

0. 00

0. 00 n.oo

0. 00

n. 00

66. 67 18.18 TOTAL

2. 00 7.00 28.57 TABLE 36 IMPINGEMENT

SUMMARY

FOR REDHORSE SUCKER R. E.

GINNA NUCLEAR STATION, 1977 MONTH NUMBER COUNTED NUMBER PROJECTED ACTUA,LLY COUNTED JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOB ER NOVEMBER DECEMBER 0.00 0.00

0. 00

2. 00

0. 00

0. 00 0.00 0.00 0.00 0.00 0.00

0. 00

5. 50

0. 00

0. 00 30.77 0.00 0.00 TOTAL

2. 00

6. 50

30. 77 TABLE 37 IMPINGEMENT

SUMMARY

FOR SLIMY SCULPIN R. E.

GINNA NUCLEAR STATION, l977 MONTH NUMBER COUNTED NUMBER PROJECTED ACTUALLY COUNTED JANUARY FEBRUARY NARC H APRIL iAAY JULY AUGUST SE PT EMBER OCTOBER NOVEMBER DEC EMBER

0. 00 0.00

0. 00

0. 00 6.00 0.00

0. 00

6. 00

0. 00

0. 00 l00.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 TOTAL

6. 00

6. 00 l00.00 TABLE 39 IMPINGEMENT

SUMMARY

FOR WALlEYE R

E ~

GINNA NUCLEAR STATION t 1977 MONTH NUMBER COUNTED NUMBER PROJECTED ACTUALLY COUNTED JANUARY FEBRUARY MARCH APRIL JUNE JUI Y AUGUST SEPTEMBER OCTOBER NOUEMBER DECEMBER

0. 00

0. 00 0.00

0. 00 1.00

0. 00

0. 00 O.DO

0. 00

4. 00 0.00

0. 00 0.00 0.00

0. 00

0. 00 O. 00

0. 00

25. 00 TOTAL

1. 00

4. 00

25. 00 TABLE 3 9 IMPINGEMENT

SUMMARY

FOR BROOK STICKLEBACK R.E.

GINNA NUCLEAR STATION, 1977 MONTH NUMBER COUNTED NUMBER PROJECTED 0 ACTUALLY COUNTED JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER

0. 00

1. 00

0. 00

3. 50

0. 00

0. 00 0.00

0. 00

28. 57

0. 00

0. 00 0.00 0.00

0. 00

0. 00 0.00 0.00

0. 00 TOTAL

l. 00

3. 50

28. 57 TABLE 40 IMPINGEMENT

SUMMARY

FOR C1SCO R.E.

GINNA NUCLEAR STATION, 1977 MONTH NUMBER COUNTED NUMBER PROJECTED

% ACTUALLY COUNTED JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER

0. 00

1. 00

0. 00

0. 00 0.00

~ 0. 00

0. 00

3. 50

0. 00

28. 57

0. 00

0. 00 TOTAL

l. 00

3. 50

28. 57 TABLE 4 1 IMPINGEMENT

SUMMARY

FOR LONGNOS E GAR R.E.

GINNA NUCLEAR STATION, 1977 MONTH NUMBER COUNTED NUMBER PROJECTED ACTUALLY COUNTED JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER

0. 00 0.00

0. 00

l. 00

1. 00

0. 00

0. 00 0.00 0.00 0.00

0. 00

2. 50

0. 00

40. 00 TOTAL

l. 00

3. 50

28. 57

-74

TABLE 42 IMPINGEMENT

SUMMARY

FOR AMERICAN EEL R. E.

GINNA NUCLEAR STATION, 1977 MONTH NUMBER COUNTED NUMBER PROJECTED ACTUALLY COUNTED JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOB ER NOVEMBER DECEMBER

0. 00

1. 00

0. 00

0. 00 0.00

3. 00

0. 00

33. 33

0. 00

0. 00 0.00 0.00 TOTAL

1. 00

3. 00

33. 33 TABLE 43 IMPINGEMENT

SUMMARY

FOR BLUNTNOSE MINNOW R.E.

GINNA NUCLEAR STATION, 1977 MONTH NUMBER COUNTED NUMBER PROJECTED ACTUALLY COUNTED JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER

0. 00

l. 00 0.00

0. 00

1. 00

0. 00

0. 00 100.00 0.00 0.00 0.00 0.00

0. 00

0. 00 TOTAL

l. 00

l. 00 100.00 TABLE 44 IMPINGEMENT

SUMMARY

FOR SPOTFIN SHINER R ~ E GINNA NUCLEAR STATION g 1977 MONTH NUMBER COUNTED NUMBER PROJECTED S ACTUALLY COUNTED JANUARY FEBRUARY MARCH APRIL MAY JUNE JULY AUGUST SEPTEMBER OCTOBER NOVEMBER DECEMBER

0. 00

1. 00

0. 00

1. 00

0. 00

0. 00 100.00 0.00 0.00 0.00 0.00 0.00 TOTAL

1. 00

1. 00 100.00 TABLE 45 TEN MOST ABUNDANT SPECIES IMPINGED IN 1977*

1973 1974 ESTIMATED NUMBER IMPINGED/YEAR 1975 1976 1977

.-.levife Smelt Stickleback

lottled Sculpin Spottail Shiner white Perch Lake Chub Gizzard Shad Emerald Shiner White Bass 2,384,862 180,938 17,296 8,207 25,141 6,839 8,974 1,382 2,008 1,301 1,871,427 122,704 4,859 5,220 8,693 1,034 3,974 1;748 13,917 1,501 225,547 121,350 34,205 6,956 2,987 141 4,750 1,971 15,228 449 672,548 89,922 147,320 4,867 6,191 221 2,389 1,302 3,912 5,268 71,856 45,852 6,415 5,003 4,801 4,719 2,866 1,461 1,307 1,223

These ten species accounted for 99% of all projected impingement during 1977.

TABLE 46 SALMONIDS Ii~iPINGED AT THE GINNA STATION BY YEAR 1973 1974 1975 1976 1977 f

g Brown Trout Rainbow. Trout Brook Trout Take Trout Coho Salmon Chinook Salmon 16 26 29 368 10 150

eocHc$ 1ee cue ANDcIccTeIc ee<ell e ~

5x 10 FIGURE 1

10 IMPINGEMENT ABUNDANCE AS INDICATED BY SAMPLING CONDUCTED IN 1977 10 10000 O

4J K

IO

~ ~ ~ ~ ~

~ ~ ~ ~ ~ ~ ~

~ ~ ~ ~ ~

~ ~

~ ~ ~ ~ ~ ~ ~ ~ ~

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ o l e ~ ~

~ ~ ~ ~

~

~ ~ ~ ~ ~ ~ ~ ~ ~

~ ~ ~ ~ ~ ~ ~ ~ 1 ~

~ ~

~

~ e

~,

~ ~ ~ ~ ~ ~

~

~ ~

lr Cztfi C7 1000 r

C2 V.

hl 10

~

100 C

C

~

I

.Gallons

~umbeze J

F M

A A

S 0

IO

IO,OOO FIGURE 2 BIOMASS ESTIMATES GENERATED FROM 1977 SAMPLING 1,000 IOO IO J

F M

A M

J J

A S

0 N

D MONTH HOCH(STD 4AS ANOACCMIC AK fl>le I t IOOOOO ALEWIFE FIGURE 3 ALEWIFE IMPINGEMENT 1977 NO. IMPINGED AVE. WEIGHT AVE. LENGTH l0000 IOOO 1000 ahl C9 0

IOO I

C)

ICO Q O

IU IO

'z

~

e 4

l.

, ~

~ ~

~

\\

~

Pl G>

IO

.I J

F M

A M

J J

A S

0 t<

D I

FIGURE 3A 80 TIME-RELATED REGRESSION PLOT FOR ALEWIFE IMPINGEMENT (ANNUAL)

I 4P I

0 10 o

R Pl0C 4p 10 (10-2 PM)

(2-6 PM)

(6-10 PM)

(10 PM-2 AM)

IMPINGEMENT TIME PERIODS (2-6 SM)

(6-10Ai4)

NOCNf5MB OAS ANDItfCTIIC

~NISI~ a ~

FIGURE 4 ALEWIFE IHPINGEHENT HKRCH 1977 l00 80 l-60 OI-40 z

C3K 20 (2-6 PM)

(6 lO PM)

(lOPM-2AM)

(2-6AM)

(6-lo AM)

(lOAM-2PM)

IMPINGEMENT TIME PERIODS

NOCNCS TIP CAN AND/((CJIIC

~oreltie ~ ~

FIGURE 5 ALEWIFE IMPINGEMENT APRIL 1977 IOO 80 j

O I 60 40 LLj C3 Cl LLj Q

20 I

(2-6 PM) 2 (6 -IOPM)

(IO PM-2 AM) 4 (2-6 AM) 5 (6-IO AM) 6

( IO AM-2PM) lMPlNGEMENT TlME PERIODS

POCNCSICi CA5 AUNDICE

~ore vi~ e ~

FIGURE 6 ALEWIFE IMPINGEHENT mZ 1977 100 80 a

O

'60 qp Z:

Ld Cl UJ C) 20 0

I (2-6PM) 2 (6-IOPM)

(10 PM-2'AM)

~

(2-6 AM) 5 (6-10 AM) 6 (10AM-2 PM) 1MP lNGEME.NT T MME PF R jODS

ttOCelÃli 4 ~

FIGURE 7 ALEWIFE IMPINGEMENT JUNE 1977 loo 80 aI O 60 I~0 z:

Ld C3 CC LLj 20 l

(2-6PM) 2 (6-10PM)

(IO P M-2AM)

(2-6AM)'

(6-IOAM) 6 (lo AM-2PM) lMPlNGE.MENT TlMF PE.RlQDS

1OCNC$ 1IP CAS ANO ACCI1IC

~eC+jr'

~

FIGURE 8 ALEHIFE IMPINGEMENT JULY 1977 IOO 80 O~

6O I~0 UJ C3 EL UJ CL 20 0

(2-6 PM) 2 (6-10 PM)

(Io PM-2 AM)

(2--6 AM) 5 (6-IO PM) 6 (IOAM-2PM)

IMPINGEMENT TIME PERIODS

iOCNf5MIOAS A1D f(tCF1IC

~gf4 $I(~ ~ ~

FIGURE 9 ALEWIFE IHPINGEHENT SEPTEMBER 1977 IOO SO O 60 t40 z',

UJ C3 0

LLI CL 20 I

(2-6 PM) 2 (6-IO PM)

(IOPM-2AM) 4, (2-6 AM) 5 (6-IO AM) 6 (IOAM-2 PM)

IMPlNGEMENT TlME PERlODS

HOCNtj1tiCASANOCtCCMIC eeegtae a ~

FIGURE 10 ALEWIFE, IIPINGEMENT OCTOBER 1977 IOO 80 O 60 4p LLI C3 Cl LLj 20 I

(2-6 PM) 2 (6-IOPM) 4 (IOPM-2AM')

(2'-6AM) 5 (6-I0 AM) 6 (IOAM-2PM) lMPlNGEMENT TIME PERlODS

POCHCSMN CAS ANDCCIC1iIC COCCI (~ e ~

FIGURE 11 ALEWIFE IMPINGEMENT NOVEMBER 1977 IOO 80 O

6O

~

~O QJ C3 CII~

2O I

(2-6 PM) 2 (6-IO PM)

(IOPM-2AM)

(2-6 AM) 5 (6-IOAM) 6 (IOAM-2PM)

IMPINGEMENT TIME PERIODS FIGURE 3

IOOOOO SMELT tOCNtttttttt AN@tttttilt JOC<<lt<<. ~ ~

FIGURE 12 SMELT IMPINGEMENT 1977

NO.

IMPINGED

-AVE. WEIGHT

-" AVE. LENGTH I0000 IOO Ci Isj C9 CL IOOO

-CO

--4 O

4>

(II,e~, ~ ~

,r II

~

(

\\

~ ~

I

\\

~... r II I

\\

I 4

IIII I

I I

I II

<<4 4

~ << ~

/I

>~

~ ~'r

/'

~<< ~

~ g

/

~t~ ~

I II I

(

0 I

4 4

IO IOO J

F M

A M

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A,S 0

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9

1OCHISMN CAS ANO ACCFNIC AKNtilk0 t FIGURE 13 TIME-RELEZED REGRESSION ANALYSIS FOR SMELT 111PINGEHENT 100 SO 40 I

UJ(3K LL) 20 x

~t I

(2-6 PM) 2 (6-IO PM)

(lOPM-2AM)

(2-6AM) 5 (6-)0AM) 6 (IOAM-2 Pill) 1MPINGEMENT TIQE PERlODS

IQOOO STICKLEBACK

\\

NO. IMPINGED AVE. WEIGHT

-'-- AVE. LENGTH 1OCNI$ 1(1 Olj ANDtllCMIC

~aqlHe s e IOOO FIGURE 14 STICKLEBACK IMPINGEMENT 1977 Obl (9

CL loo IOO IPl O

o IO Pl IO rn

~ ~

0 iy~ ~ ~

~ ~o~ ~ y~

0~ ~ ~~

~ ot

~y

+ ~ ~

o ~ ~ oo0r+

~ ~ ~oo ~

~

~ ~

~o0~

r r'

r' w

~ ~

0r 0

r

~~

~

rr J

F M

A M

J J

A S

0 N

D

1OCNt$ 1tl CAS ANOIlfCMIC eOCHlfle 0 ~

FIGURE 15 TD1E RELATED REGRESSION ANALYSIS FOR STICKLEBACK IMPINGEMENT 100 80 O

60 O

40 QJ CL UJ 2O I

(2-6 PM) 2 (6-IO PM) 3 (IO PM -2 AM)

(2-6AM) 5 (6-IOAM) 6

((OAM-2 PM) lMPINGEMENT TIME PERlODS

I0 C0t S MIel 5lNO tIIC 11 IC

~OCWII(r ~ ~

FIGURE 15A MOTTLED SCULPIN IMPINGEMENT-1977 IHRH-2PN 2PN-EPH EPN-IHPH IHPM-2RN ERM"IHRH

IOOO IVIOTT LED SCULPIN NU. IMPINGED AVE. WEIGHT

-"-"- AVE. LENGTH L.

lOCNI51C1 CAS ANO tt(C11IC AK ~ IIII 0 ~

FIGURE 16 TINE-RELATED REGRESSION PLOT FOR MOTTLED SCULPIN IHPINGEHENT Cl UJ C9 CL~

IOO lo O

~ ~ 0 ~ ~

~ ~ ~

~

~ ~ <<o O~I ~ ~ ~ ~

,>>I 0

~ rO ~ ~ ~ 0

~ '0

~ 0 rO~~

~

rO rr

~>> >>>> <<0>>>>>>0 4

rr 0

~O 4

0 4>>

lo J

F M

A M

J J

A S

0 N

D

5000 NOCNIS flNOlj ANOtlIC TNIC exsrgrie a ~

NO. IMPINGED.

AVE. WEIGHT

--- ->> AVE. LENGTH FIGURE 17 SPOTTAIL SHINER IMPINGEMENT 1977 l000 l00 Clhl C9 Q.

(g) l00 h.

" v"4rt'

<<e <<

r ~4~ ~ <<\\ 04

~ ~~ y 40 4

rr

~i4~

~~

0 I

4<

e ~ FIGURE 21 (00 TINE-RELATED REGRESSION ANALYSIS FOR EMERALD SHINER IMPINGEtKNT 80 I 60 0 40 z LL) O CL 20 4J I (2-6 PM) 2 (6-)0 PM) (IO PMi 2 AM) (2-6 AM) 5 (6-(OAM) 6 00 AiYi-2P )1) lMPlNGEMENT TlME PE RlODS PROJECTEO IMPINGEMENT LEVEL O M % M W W W W M W M IO C P$ h) O 0n ~II D n Il NUMBER OF SALMONIDS PLANTED 0 0 th M W 0 W X O M Q O X ID I M % O 0 M W W XI W O 0 H H g e e M Pl d K t g trJ R w Pl XI 0n 44 ~' 4 4 4 4 PROJECTED IMPINGEMENT LEVEL OQl % I-I I W P1 C IA I-I 0 Q W M U)o 0n lo lo h tg D ll PROJECTED IMPINGEMENT LEVEL O 0 H 4 O M 9 c1

6) H 0

~An EA Cl & I W I H 0 R g 0 0 ~It 4 4 4 n 4 PROJECTED tMP(NGEMENT LEVEL O 0 O OO WX 0 K OMQ ROW K t4 VO MWVl A I H g R td MHH A I P1 PROJECTED IMPINGEMENT LEVEL O 0 W '0 O w 0 MAC 4JR g$ I I K M QRO % O O % O M M Q Ql M XI I PROJECTED IMPINGEMENT LEYEL O O M I

4) Gl Iv g dl W A

M IXt A I O W Cl tV CO M U)o ho ~l II II ~ 5t D fl I n PROJECTED IMPINGEMENT 0 LEVEL O O \\9 H tA C) I W O G M M QC W IO h) O M O 0n I0 ~0 L ~tII 00n 'L PROSECTED IMPINGEMENT LEVEL 0lQ 004 o 5 H g ~'OW LD M ~Kth lA A tA I ~ ~~O

4) I 0 M

O M R 0 h0n la 0 ~Itl h PROJECTED IMPINGEMENT LEVEL A O XI 0 H X Vl 0 0 R K 0 lD ~ 4l M I Cl M W 8C 0 W lA I PROJECTED IMPINGEMENT LEVEL nO H 4 4l M Cl M txj M A W 0h 4 I 0 I ~I ll 'I PROJECTED IMPINGEViENT LEVEL C3fO O OH C M QHQ VP ~ ~ ~ <<~ O

0) W O M

O co R o 'h 0n ~I ~I N ~ 4 ~ 5 0 h h n PROSECTE D IMPINGEMENT LEVEL O .OQl M & M M A w Fl W M A QC Xl O o I1 ~ 4 D h CI

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