ML071710056

Savannah River Larval Fish Study, Burke County, Georgia from January Through August 1974, Operating License Stage Environmental Report Technical Document.

ML071710056
Person / Time
Site:	Vogtle, 05200011
Issue date:	03/31/1983
From:	Wiltz J Georgia Power Co
To:	Office of New Reactors
References
+reviewedcja, AR-07-0924
Download: ML071710056 (33)

Text

VOGTLE ELECTRIC GENERATING PLANT SAVANNAH RIVER LARVAL FISH STUDY, BURKE COUNTY, GEORGIA FROM JANUARY THROUGH AUGUST, 1974 OPERATING LICENSE STAGE ENVIRONMENTAL REPORT TECHNICAL DOCUMENT J. WAYNE WILTZ PRINCIPAL INVESTIGATOR GEORGIA POWER COMPANY ENVIRONMENTAL AFFAIRS CENTER MARCH, 1983

VEGP - OLSER TABLE OF CONTENTS LIST OF TABLES LIST OF FIGURES iii INTRODUCTION 1 METHODS 2 RESULTS AND DISCUSSION 2 CONCLUSIONS 4 REFERENCES 5 TABLES 6 FIGURES 23 i

VEGP - OLSER LIST OF TABLES

1. Family, Scientific, and Common Names of Fishes 6 Collected in the Savannah River Larval Fish Study

2. Species and Number of Eggs and Larvae Collected 8 Per Month in the 1974 Savannah River Larval Fish Study

3. Species, Number of Individuals Collected for the Day 10 and the Night Samples, Totals for the Day, the Night and the Month and the Percent Composition of Each Species for the Day, the Night, and the Month

4. Species, Total Number, and Percent Composition of Each 13 for the 1974 Savannah River Larval Fish Study

5. Comparison of Family Densities Per 1000 Cubic Meters 15 of Water

6. Densities for Eggs and Larvae of Each Taxa Per 1000 16 Cubic Meters of Water

7. Mean Lengths in Millimeters With the Range in 19 Parenthesis for the Larval Fishes from the Savannah River for Each Month if

VEGP - OLSER LIST OF FIGURES

1. Station Location for the Savannah River Larval Fish 23 Study

2. Air Temperatures for the Day Surveys for 1974 24

3. Air Temperatures for the Night Surveys for 1974 25

4. Water Temperatures for the Savannah River Day Surveys 26 for 1974

5. Water Temperatures for the Savannah River Night Surveys 27 for 1974

6. Dissolved Oxygen Concentrations for the Savannah River 28 Day Surveys for 1974

7. Dissolved Oxygen Concentrations for the Savannah River 29 Night Surveys for 1974 iii

VEGP - OLSER INTRODUCTION Construction of the Vogt1e Electric Generating Plant (VEGP) began in June, 1974, and was discontinued in September, 1974, as a result of unfavorable economic conditions.. Construction resumed in January, 1977, with excavation activities beginning in February. The plant site is approximately 3169 acres and located in Burke County, the southwest side of the Savannah River, the natural boundary between Georgia and South Carolina. The site is at river mile 150.9 across from the Savannah River Plant (SRP) operated by E. I. DuPont DeNemours and Company for the U.S. Department of Energy. The plant site is ap-proximately 26 miles south-southeast of Augusta, Georgia. The site is located in the coastal plain, which is characterized by sandy or sandy loam soil with rolling hills and mixed pine-hardwood association. Since the onset of construction, approximately 1391 acres of the site have been cleared for plant construction.

The original plans proposed a generating plant consisting of four units, but construction of two units has been cancelled. The plant will employ two pressurized water reactors producing 1160 MW each. Unit 1 is sche-duled to go into service in March, 1987, and Unit 2 in September, 1988.

The exhaust steam will be cooled by a closed-cycle cooling system employ-ing natural draft cooling towers using make-up water from the Savannah River. Low volume waste and b10wdown from both cooling towers will ulti-mately be discharged back into the river.

The Savannah River below Augusta, Georgia, and above the VEGP site receives wastewater discharges from municipalities and industries that add organic wastes, nutrients, metals, and other trace cont~~nants.

Stream classification near the VEGP is listed as "Fishing." The river near the plant site is typical of large southeastern coastal plain rivers except that a dredged channel is maintained by the Corps of Engineers for barge traffic. The biological community of the river is similar to that of other large southeastern rivers but has been affected by man's influence on the river. The impoundment of the river above Augusta, Georgia, has reduced the transport of sediments and allochthonous parti-culate organic material, and the dredging of the channel has reduced the natural shallow areas and backwaters that would normally support a diverse flora and fauna. Studies on the Savannah River flora and fauna have been t2~ducted periodically since 1951 and were detat~Jt4tn Patrick, et atSJ Academy of Natural Sciences of Philadelphia, and Matthews.

Georgia Power Company was required by the Plant Vogt1t6Jina1 Environmental Statement issued by the U.S. Atomic Energy Commission to complete the requirement that fish eggs and larvae be sampled at suitable stations above and below the plant site in the Savannah River. A study began in January and ended in August, 1974.

1

VEGP - OLSER METHODS Three sampling transects were selected, each with two stations. Station 1 of each transect was on the Georgia side of the river, and Station 3 of each transect was on the South Carolina side (figure 1). Descriptions of each transect follows:

Transect 151.2: Located at river mile 151.2 and 0.3 miles upstream from the proposed site of the intake structure.

Transect 150.9: Located at river miles 150.9 and at the site of the intake structure.

Transect 150.6: Located at river mile 150.6 and 0.3 miles downstream from the proposed site of the intake structure. -

Samples were taken from January through May and July and August, 1974.

Survey frequency for the months sampled were as follows: January, 2 surveys; February, 3 surveys; March, 4 surveys; April, 3 surveys; May, 1 survey; July, 1 survey; and August, 1 survey. A total of 15 surveys consisting of 89 day samples and 88 night samples were collected. The data were grouped and presented as a monthly total. Densities were calculated by dividing the total number of eggs or larvae for a given month by the total volume of water filtered through the net. Sampling was done with a one-meter diameter, 760 ~ mesh drift net. Sample dura-tion time was 15 minutes. Specimens were preserved with ten percent formalin in the field and transported to the Georgia Power Company En-vironmental Affairs Center laboratory in Decatur to be identified, measured, and enumerated. Air and water temperature and dissolved oxy-gen concentration were measured at the time of sampling.

RESULTS AND DISCUSSION -

The family, scientific, and common names of fish eggs and larvae collected in the Savannah River larval fish study are presented in table 1. A total of 2177 larvae and 1423 eggs were collected (table 2). At least 34 species of fish were represented. Table 3 showed that a greater num-ber of individuals were collected at night, with the exception of the month of May. The larvae of the crappies (Pomoxis spp.) comprised 56.8 and 70.8 percent of the April and July samples, respectively. Larvae of the spotted sucker (Minytrema melanops) comprised 2.9, 18.7, and 37.5 percent of the March, April, and May samples, respectively. Ameri-can shad (Alosa sapidissima) eggs first appeared in the March sample, comprising 5.0 percent. Peaks occurred in April (31.6 percent) and May (45.2 percent) with a sharp decrease in July (12.9 percent). For the 1974 study, the larvae of crappies and spotted sucker comprised the largest portion of the total number with 29.3 and 15.7 percent, respec-tively. American shad eggs comprised 23.6 percent of the total number collected 4). The densities of larvae and eggs for 1000 cubic meters (m3(table

) of water are presented in table 5 for each family for each 2

VEGP - OLSER month sampled. The densities for the Clupeidae, Catostomidae, and Centrarchidae were the highest among the 12 familes represented. The density for the Clupeidae was highest in April and May, due primarily to the eggs of the American shad. Catostomid density was also highest in April and May and consisted mainly of spotted sucker larvae. Cen]

trarchid density was highest in March, with a density of 45.6/1000 m

• Crappies constituted the greater portion of the density of the Centrar-chidae. Densities for the months sampled showed a gradual increase from January to April, peaking in May with a sharp decrease in July and August (table 6). Table 7 presents the monthly mean lengths and range (in millimeters) of total lengths for each species.

The air temperatures for the day and night surveys are given in figures 2 and 3. The water temperatures for the day and night surveys, presented in figures 4 and 5, showed that temperatures never exceeded 3 the limit set by the Georgia Department of Natural Resources. t11 C (90.0 F);

Dissolved oxygen concentrations, figures 6 and 7, were also within the limit set by the Georgia Department of Natural Resources of a daily average of 5.0 mg/l, or no less than 4.0 mg/l at all times for warm water species of fish.

The study conducted at the SRP resulted in 1700 larval fish and 357 eggs collected, representing at least 22 species. The most common species were blueback herring (Alosa aestivalis), spotted sucker, and black crappie (Pomoxis nigro~tus). Nearly half of a+l larvae collected were clupeids, primarily blueback herring. The eg~~)of the American shad comprised 96.4 percent of all eggs collected.

The 05iginal design of the intake structure for VEGP for six 1.4 m /sec (22,000 gpm) make-up pumps and two 0.94 m3called

/sec (15,000 gpm) dilution pumps for the four units. The c1ncellation of two units has reduced the number of pumps to four 1.4 m /sec (22,000 gpm) pumps. The plant will use approximately 0.65 percent of the average daily river flow as compare1 to the original estimate of 1.33percent. The SRP has eighteen 2.05 m /sec (32,500 gpm) and six 0.79 m /sec (12,500 gpm) pum~1 which presently removes seven percent of the daily average river flow. )

Studies conducted at SRP revealed that eggs were rarely found in canal plankton samples. It was believed that the eggs, which were dependent on the river current for suspension in the water column, settled to the bottom of the intake canal. The velocity decreased drastically in the canal in comparison to the main channel of the river. In general, fish eggs, which were carried by the flow of water, were present in the lower portion of the water column near the bottom. Those eggs which did enter the intake canal encountered a sharp decrease in velocity and had a tendency to settle to the bottom.

Some fish larvae, like the eggs, were carried by the current from the time of hatching to that period when direct movement was possible. The time span depended on the species and the biological and physical factors but usually required several days. The larvae were most susceptible to 3

VEGP - OLSER entrainment during this time. As in the case of the eggs which entered the intake canal and settled to the bottom, so too would the larvae.

This meant that not all eggs and larvae which entered the intake canal would necessarily be entrained. This was indicated by the persistence of sunfish, miYlfYws, and larval and juvenile silversides in the SRP intake canals. The sunfish were known to spawn in the intake canals, were the dominant species in the canals, and occurred there year round.

The bottom of the VEGP intake structure will be at the same elevation as the bottom of the river. This will allow eggs to enter the canal, encounter a sharp decrease in velocity, and result in the settling out of the eggs and larvae. The data indicated that the game and commercial species most susceptible to entrainment because of their abundance would be the eggs of the American shad and the larva of the crappies. Of the non-game and non-commercial species, the larva of the spotted sucker would be most susceptible to entrainment. The crappies construct nests and give parental care to the eggs and young. Upon leaving the nest, the larvae actively swim. Because of their swimming ability and the reduced velocity in the intake canal, the actual number of larvae en-trained are expected to be minimal. The eggs of the American shad which do enter the canal would, most likely, settle to the bottom and possibly avoid being entrained.

Studies from SRP and VEGP indicate that entrainment of eggs and larvae will be minimal and not have a significant affect on the fish population in the river.

CONCLUSIONS In our study, a total of 2177 fish larvae and 1423 eggs were collected with a minimum of 34 species represented. The most common taxa were crappies and spotted sucker, constituting 29.3 and 15.7 percent of the total number collected, respectively. The eggs of the American shad comprised 23.6 percent of the total. The difference in the percent com-pOSitiO~7yf American shad eggs in the VEGP study and that of McFarlane, et al., was thought to be caused by annual spawning variations.

In terms of abundance, the eggs of the American shad and the larvae of the crappies and spotted sucker would be most likely affected by entrain-ment. Biological and physical factors, such as the reproductive behavior of the crappies and the low velocity in the intake canal, suggest that entrainment of eggs and larvae will be minimal and not have a significant effect on the fish population in the river.

4

VEGP - OLSER REFERENCES

1. Environmental Protection Division, Water Quality Monitoring Data for Georgia Streams, Department of Natural Resources, Atlanta, Georgia, 1981.

2. Patricks, R., Cairns, J., and Roback, S. S., "An Ecosystematic Study of the Fauna and Flora of the Savannah River," Proceedings of the Academy of Natural Sciences of Philadelphia 118, pp 109-407, Philadelphia, Pennsylvania, 1967.

3. Academy of Natural Sciences of Philadelphia, Summary of Studies on the Savannah River 1951-1970 for E. I. DuPont DeNemours and Company, Academy of Natural Sciences of Philadelphia, Philadelphia, Pennsylvania, 1970.

4. Academy of Natural Sciences of Philadelphia, Summary Reports of Savannah River Cursory Surveys for E. I. DuPont DeNemours and Company

-1961-1972, 1974, and 1977, Academy of Natural Sciences of Philadelphia, Philadelphia, Pennsylvania, 1978.

5. Matthews, R. A., Biological Surveys on the Savannah River in the Vicinity of the Savannah River Plant (1951-1976), E. I. DuPont DeNemours and Company, Savannah River Laboratory, Aiken, South Carolina, 1982.

6. United States Atomic Energy Commission, Environmental Statement Related to the Proposed Alvin W. Vogtle Nuclear Plant, Units 1. 2.

3, and 4, Parts 6 and 11, Washington, D.C., 1974.

7. McFarlane, R. W., Frietsche, R. F., and Miracle, R. D., Impingement and Entrainment of Fishes of the Savannah River Plant: An NPDES 3l6(b) Demonstration, E. I. DuPont DeNemours and Company, Savannah River Laboratory, Aiken, South Carolina, p 68, 1978.

5

VEGP - OLSER TABLE I (PAGE I OF 2)

FAMILY, SCIENTIFIC, AND COMMON NAMES OF FISHES COLLECTED IN THE SAVANNAH RIVER LARVAL FISH STUDY Scientific Name Common Name Acipenseridae Acipenser spp , Sturgeon Clupeidae Alosa aestivalis Blueback Herring Alosa mediocris Hickory Shad Alosa sapidissima American Shad Dorosoma spp. Shad Esocidae Esox americanus Redfin Pickerel Esox niger Chain Pickerel

~spp. Pickerel Cyprinidae Cyprinus carpio Carp Hybognathus regius Eastern Silvery Minnow Notemigonus crysoleucas Golden Shiner Notropis petersoni Coastal Shiner Catostomidae Carpiodes spp , Carpsucker Minytrema melanops Spotted Sucker Ictaluridae Ictalurus brunneus Snail Bullhead Ictalurus nebulosus Brown Bullhead Ictalurus platycephalus Flat Bullhead Ictalurus punctatus Channel Catfish Noturus gyrinus Tadpole Madtom Aphredoderidae Aphredoderus sayanus Pirate Perch Belonidae Strongylura marina Atlantic Needlefish Poeciliidae Gambusia affinis Mosquitofish Atherinidae Labidesthes sicculus Brook Silverside Centrarchidae Enneacanthus gloriosus Bluespotted Sunfish Lepomis auritus Redbreast Sunfish Lepomis gulosus Warmouth Lepomis macrochirus Bluegill Lepomis spp. Sunfish Pomoxis spp. Crappie Micropterus salmoides Largemouth Bass Micropterus spp. Bass 6

VEGP - OLSER TABLE 1 (PAGE 2 OF 2)

Scientific Name Common Name Pereidae Etheostoma frieksium Savannah Darter Perea flaveseens Yellow Perch 7

VEGP - OLSER TABLE 2 (PAGE 1 OF 2)

SPECIES AND l-o"IDmER OF EGGS AND LARVAE COLLECTED PER l-lONTH IN THE 1974 SAV~~ RIVER LARVAL FISH STL~Y

.Species Month Jan. Feb. Nar. Apr. May July Aug. Total Acipenser spp.

Alosa aestiva1is AlO"S'a mediocris 1

1 1

1 2

1 1

.A1osa sapidissima 1 7 2 10

..Dorosoma spp. 1 18 19 Clupeidae larvae 7 2 9

~ americanus 2 2

~ niger 2 2

~6PP, 3 5 8 Cyprinus carpio 4 4 Hybognathus regius 1 1 Notemigonus cryso1eucas 1 4 5 Notropis petersoni 3 2 2 7 Cyprinidae larvae 16 32 62 9 119 Carpiodes spp. 2 6 8 Minytrema me1anops 36 304 224 564 Catostomidae larvae 1 1 Icta1urus brunneus 1 5 6 Icta1urus nebu10sus 4 4 Icta1urus p1atycepha1us 7 1 8 Icta1urus punctatus 1 1 Noturus gyrinus 1 1 Ayhredoderus sayanus 3 29 7 39 Stronsy1ura marina 1 1 Gambusia affinis 1 1 Labidesthes siccu1us 2 2 Enneacanthus gloriosus 1 1 Le'pomis auritus 1 1 Lepomis gu10sus 1 1 Lepomis macrochirus 1 1 Lepomis spp , 25 94 37 7 2 165 Pomoxis app , 54 878 121 1 1054 M1cropterus sa1mo1des 1 1 Micropterus spp. 1 2 3 Centrarchidae larvae 4 4 Etheostoma fr1cksium 1 1 Perea f1aveseens 9 52 32 3 1 97 Percidae larvae 5 8 2 15 Unknown larvae 1 4 2 7 Alosa mediocris egg 114 114 A10sa sapidissima egg 2 62 513 270 4 851 C1upeidae egg 1 1 8

VEGP - OLSER TABLE 2 (PAGE 2 OF 2)

Species- Month Jan. Feb. l'tar. Apr. May July Aug.

Total Cyprinidae egg 1 1 Catostomidae egg 22 108 130 Percidae egg 14 23 1 2 1 41 Unknown egg 5 65 177 28 _3_ 7

- 285 Totals 1 95 1240 1622 598 31 13 3600 9

VEGP - OLSER TABLE 3 (PAGE 1 OF 3)

SPECIES t NUMBER OF INDIVIDUALS COLLECTED FOR THE DAY AND THE NIGHT SAMPLES t TOTALS FOR THE DAY t THE NIGHT Mll THE MONTH A.~D PERCE~'T COMPOSITION OF EACH SPECtES FOR THE DAY t THE NIGHT AND THE MO!\'TH Month/Species Day (% Camp.) Night (% Comp.) Total (% Comp.)

1. January Lepomis auritus 1 (lOO.O) 1 (lOO.O)

Totals 1 1

2. February

~ spp. 3 (7.5) 3 (J.2)

Cyprinidae 5 (12.5) 11 (20.0) 16 (16.8)

Ictalurus brunneus 1 (l.8) 1 (1.1)

Aphredoderus sayanus 1 (2.5) 2 (3.6) 3 (3.2)

Lepomis macrochirus 1 (1.8) 1 (1.1)

Pomoxis spp. 23 (57.5) 31 (56.4) 54 (56.8)

Perca f1avescens 4 (10.0) 5 (9.1) 9 (9.5)

Unknown larvae 1 (2.5) 1 (1.1)

Alosa sapidissima egg 1 (2.5) 1 (1.8) 2 (2.1)

Unknown egg 2 (5.0) *3 (5.5) 5 (5.3)

Totals """40 55 95

3. March Acipenser spp , 1 (0.3) 1 (0.1)

Alosa aestiva1is 1 (0.3) 1 (0.1)

Alosa sapidissima 1 (0.1) 1 (0.1)

Dorosoma spp, 1 (0.1) 1 (0.1)

Esox americanus 2 (0.5) 2 (0.2)

~ niger 2 (0.2) 2 (0.2)

Esox spp. 1 (0.3) 4 (0.5) 5 (0.4)

Notemigonus cr-yso1eucas 1 (0.3) 1 (0.1)

Notropis petersoni 2 (0.5) 1 (0.1) 3 (0.2)

Cyprinidae larvae 18 (4. B) 14 (1.6) 32 (2.6)

~tinytrema me1anops 17 (4.5) 19 (2.2) 36 (2.9)

Aphredoderus sayanus 21 (5.6) 8 (0.9) 29 (2.3)

Gambusia affinis 1 (0.1) 1 (0.1)

Lepomis spp. 18 (4.8) 7 (0.8) 25 (2.0)

Pomoxi s spp. 174 (46.5) 704 (81.3) 878 (70.8)

Micropterus spp. 1 (0.1) 1 (0.1)

Perea f1aveseens 30 (8.0) 22 (2.5) 52 (4.2)

Pereidae larvae 3 (0.8) 2 (0.2) 5 (0.2)

Alosa sapidissima egg 44 (11.8) 18 (l.l) 62 (5.0) 10

VEGP - OLSER TABLE 3 (PAGE 2 OF 3)

Month/Species Day (% Comp.) Night (% Comp.) . Total (% Cornp.)

Clupeidae egg 1 (0.3) 1 (0.1)

Catostomidae egg 6 (1.6) 16 . (1. 8) 22 (1. 7)

Percidae egg 11 (2.9) 3 (0.3) 14 (1.1)

Unknown egg 23 (6.1) 42 (4.8) ~ (5.2)

Totals 374 866 1240

4. April Acipenser spp. 1 (0.1) 1 (0.1)

Alosa medioeris 1 (0.1) 1 (0.1)

Alosa sapidissima 4 (0.6) 3 (0.3) 7 (0.4)

Dorosoma spp. 3 (0.4) 15 (1.6) 18 (1.1)

C1upeidae larvae 4 (0.6) 3 (0.*3) 7 (0.4)

Cyprinus carpio 3 (0.4) 1 (0.1) 4 (0.2)

Notemigonus eryso1eueas 2 (0.3) 2 (0.2) 4 (0.2)

Notropis petersoni 2 (0.2) 2 (0.1)

Cyprinidae larvae 32 (4.6) 30 (3.3) 62 (3.8)

Carpiodes spp. 2 (0.2) 2 (0.1)

Minytrema me1anops 185 (26.3) 119 (12.9) 304 (18.7)

Catostomidae larvae 1 (0.1) 1 (0.1)

Aphredoderus sayanus 7 (0.8) 7 (0.4)

Enneacanthus gloriosus 1 (0.1) 1 (0.1)

Lepomis gu10sus 1 (0.1) . 1 (0.1)

Lepomis spp , 57 (8.1) 37 (4.0) 94 (5.8)

Pomoxis spp. 53 (7.5) 68 (7.4) 121 (7.5)

Mieropterus spp. 2 (0.3) 2 (0.1)

Centrarehidae larvae 4 (0.6) 4 (0.2)

Perea f1aveseens Pereidae larvae 18 2

(2.6)

(0.3) 14 6

(1. 5)

(0.7) 32 8

(2.0)

(0.5)

Unknown larvae 1 (0.1) 3 (0.3) 4 (0.2)

Alosa medioeris egg 32 (4.6) 83 (8.9) 114 (7.0)

Alosa sapidissima egg 183 *126.0) 330 (35.9) 513 (31.6)

Catostomidae egg 46 (6.5) 62 (6.7) 108 (6.7)

Pereidae egg 12 (1.7) 11 (1.2) 23 (1.4)

Unknown egg 59 (8.4) 118 (12.8) 177 (l0.9)

Totals 703 919 1622

5. May Alosa sapiddissima 1 (0.3) 1 (0.4) 2 (0.3)

Clupeidae larvae 1 (0.3) 1 (0.4) 2 (0.3)

Hybognathus regius 1 (0.4) 1 (0.2)

Notropis petersoni 2 (0.7) 2 (0.3)

Cyprinidae larvae 6 (1.9) 3 (1.1) 9 (1.5)

Carpiodes spp. 3 (l.0) 3 (1.1) 6 (1.0) 11

VEGP - OLSER TABLE 3 (PAGE 3 OF 3)

~lonth/Species Dav (% Comp.) Night (% Comp.) Total (% Comp.)

5. ~tay (Continued)

Minytrema melanops 157 (49.8) 67 (23.7) 224 (37.5)

Ictalurus nebulosus 4 (1. 4) 4 (0.7)

Strongv1ura marina 1 (0.3) 1 (0.2)

Labidesthes sieeu1us 2 (0.6) 2 (0.3)

Lepomis spp. 19 (6.0) 18 (6.4) 37 (6.2)

Micropterus sa1moides 1 (0.4) 1 (0.2)

"Etheostoma frieksium 1 (0.3) 1 (0.2)

Perea f1avescens 3 (1.0) 3 (0.5)

Pereidae larvae 1 (0.3) 1 (0.4) 2 (0.3)

Unknown larvae 2 (0.7) 2 (0.2)

~ sapidissima egg 107 (34.0) 163 (57.6) 270 (45.2)

Percidae egg 1 (0.4) 1 (0.2)

Unknown egg 13 (4.1) 15 (5.3) 28 (4.7)

Totals 315 283 598

6. July leta1urus brunneus 5 (26.3) 5 (16.1)

Ieta1urus p1atyeepha1us 5 (41. 7) 2 (l0.5) 7 (22.6)

Noturus gyrinus 1 (5.3) 1 (3.2)

I.epomis spp. 7 (36.8) *7 (22.6)

Pomoxis spp. 1 (8.3) 1 (3.2)

Alosa sapidissima egg Cyprinidae egg Percidae egg 2

1 2

(16.7)

(8.3)

(16.7) 2 (10.5 ) 4 1

2 (12.9)

(3.2)

(6.5)

Unknown egg 1 (8.3) 2 (l0.5 ) 3 (9.7)

Totals 12 19 3I "7. August Ieta1urus p1atycepha1us 1 (9.1) 1 (7.7)

Ieta1urus punetatus 1 (9.1) 1 (7.7)

Lepomis spp.

Perea f1aveseens Pereidae egg 1 (50.0) 2 1

(18.2)

(9.1) 2 1

1 (15.4)

(7.7)

(7.7)

Unknown egg 1 (50.0) -! (54.5) 7 (53.8)

Totals 2 11 13 12

VEGP - OLSER TABLE 4 (PAGE 1 OF 2)

SPECIES, TOTAL NUMBER, AND PERCENT COMPOSITION OF EACH FOR THE 1974 SAVANNAH RIVER LARVAL FISH STUDY Species Total Number  % Composition Acipenser spp.

Alosa aestiva1is 2

1 °ita)

Alosa mediocris 1 T A10sa sapidissima 10 0.3 Dorosoma spp. 19 0.5 C1upeidae larvae 9 0.3 Esox americanus 2 0.1

~ niger 2 0.1 Esox spp. 8 0.2 Cyprinus carpio 4 0.1 Hybognathus regius 1 T Notemigonus cryso1eucas 5 0.1 Notropis petersoni 7 0.2 Cyprinidae larvae 119 3.3 Carpiodes spp. 8 0.2 Minytrema me1anops 564 15.7 Catostomidae larvae 1 T Icta1urus brunneus 6 0.2 Icta1urus nebu10sus 4 0.1 Icta1urus p1atycepha1us 8 0.2 Icta1urus punctatus 1 T Noturus gyrinus 1 T Aphredoderus sayanus 39 1.1 Strongy1ura marina 1 T Gambusia affinis 1 T Labidesthes siccu1us 2 0.1 Enneacanthus gloriosus 1 T Lepomis auritus 1 T Lepomis gu10sus 1 T Lepomis macrochirus 1 T Lepomis spp. 165 4.6 Pomoxis spp. 1054 29.3 Micropterus sa1moides 1 T Micropterus spp. 3 0.1 Centrarchidae larvae 4 0.1 Etheostoma fricksium 1 T Perca f1avescens 97 2.7 Percidae larvae 15 0.4 Unknown larvae 7 0.2 A10sa mediocris egg 114 3.2 Alosa sapidissima egg 851 23.6 13

VEGP - OLSER TABLE 4 (PAGE 2 OF 2)

Species Total Number % Composition C1upeidae egg 1 T Cyprinidae egg 1 T Catostomidae egg 130 3.6 percidae egg 41 1.1 Unknown egg 285 7.9 Totals 3600 99.7

a. Trace 14 -

VEGP - OLSER TABLE 5 COHPARISON OF FA}llLY DENSITIES PER 1000 CUBIC METERS OF WATER Family - -

!o1onth Jan. Feb. Mar. Apr. ~ July Aug.

Acipenseridae 0.05 0.06 C1upeidae 0.10 3.30 37.00 58.10 0.90 Esocidae 0.20 0.50 Cyprinidae 1.00 1.90 4.00 2.50 0.20 Catostomidae 2.90 23.20 48.80 Icta1uridae 0.10 0.80 2.90 0.40 Aphredoderidae 0.20 1.50 0.40 BeLotrLdae 0.20 Poec11iidae 0.05 Atherinidae 0.40 Centrarchidae 0.20 3.60 45.60 12.50 8.10 1.80 0.50 Percidae 0.60 3.60 3.50 1.40 0.50 0.40 Unknown eggs and larvae 0.40 3.30 10.10 6.30 0.70 1. 70 15

VEGP - OLSER TABLE 6 (PAGE 1 OF 3)

DENSITIES FOR EGGS ~~D LARVAE OF EACH TAXA PER 1000 CUBIC ~ffiTERS OF WATER FOR THE DAY AND THE NIGHT

}1onth/Species Day Night i , January, 1974 Lepomis auritus 0.4 -

2. February Esox spp. 0.4 Cyprinidae larvae 0.6 1.5 Ictalurus brunneus 0.1 Aphredoderus sayanus 0.1 0.3 Lepomis macrochirus 0.1 Pomoxis spp. 2.8 4.2 Perea flavescens _ 0.5 0.7 Unknown larvae 0.1 Alosa sapidissima egg 0.1 0.1 Unknown egg 0.2 0.4 Totals 4.8 T4

3. March Acipenser spp. 0.1 Alosa aestivalis Alosa sapidissima Dorosoma spp.

0.1 0.1 0.1 Esox americanus 0.2

~niger Esox spp.

Notemigonus crysoleucas 0.1 0.1 0.2 0.4 -

Notropis peterson! 0.2 0.1 Cyprinidae larvae 1.8 1.4 Minytrema melanops 1.7 1.9 Aphredoderus sayan us 2.1 0.8 Gambusia affinis 0.1 Lepomis spp. 1.8 0.7 Pomoxis spp. 17.5 70.9

~1icroPterus spp , 0.1 Perea flavescens 3.0 2.2 Percidae larvae 0.3 0.2 Alosa sapidissima egg 4.4 1.8 C1upeidae egg Catostomidae egg 0.1 0.6 1.6 -

16

VEGP - OLSER TABLE 6 (PAGE 2 OF 3) l-lonth!Species Day Night 3 *. March (Continued)

Percidae egg 1.1 0.3 Unknown egg 2.3 4.2 Totals 37.5 87.1

4. April Acipenser spp. 0.4 Alosa mediocris 0.1 Alosa *sapidissima 0.4 0.3 Dorosoma spp. 0.3 1.7 Clupeidae larvae 0.4 0.3 Cyprinus carpio 0.3 0.1 Notemigonus cryso1eucas 0.2 0.2 Notropis petersoni 0.2 Cyprinidae larvae, 3.5 3.5 Carpiodes spp. 0.2 Minytrema me1anops '20.1 13.7 Catostomidae larvae 0.1 Aphredoderus sayanus 0.8 Enneacanthus gloriosus 0.1 Lepomis gulosus 0.1 Lepomis spp. 6.2 .4.3 Pomoxis spp. 5.8 7.8 Hicropterus spp. 0.2 Centrarchidae larvae 0.4 Perea flavescens 2.0 1.6 Percidae larvae 0.2 0.7 Alosa medioeris egg 3.5 9.5 Alosa sapidissima egg 19.9 38.1 Catostomidae egg 5.0 7.2 Percidae egg 1.3 1.3 Unknown egg 6.4 13.6 Totals 76.3

'. 106.1

5. Hay Alosa sapidissima 0.5 0.4 Clupeidae larvae 0.5 0.4 Hybognathus regius 0.4 Notropis petersoni 0.8 Cyprinidae larvae 2.8 1.2 Hinytrema me1anops 73.0 26.2 Ictalurus nebulosus 1.6 Strongylura marina 0.5 17

VEGP - OLSER TABLE 6 (PAGE 3 OF 3)

Month/Species Day Night

5. !:tay (Continued)

Labidesthes sicculus 0.9 Lepotnis spp. *S.8 7.0 Micropterus salmoides 0.4 Etheostoma fricksium 0.5 Perca flavescens 1.4 PerC1dae larvae O.S 0.4 Unknown larvae 0.8

~ sapidissima egg 49.8 63.6 Perc1dae egg Unknown egg . .. 6.0 0.4 5.9 Totals 146:6 TID:7

6. July Ictalurus brunneus 2.3 Icta1urus platycepha1us Noturus gytinus 2.2 . 0.9 0.5 Lepomis spp. 3.3 POlllOxis spp. 0.4 .

Alasa sapidissitna egg 0.9 0.9 Cyprinidae egg 0.4 Percidae egg 0.9 .0.9 Unknown egg 0.4 0.5 Totals S.2 9.3

7. August Ictalurus platycephalus 0.4 Icta1urus punctatus 0.4 Lepoll1is spp. 0.9 Perca f1avescens 0.5

~dae egg 0.4 Un"k.nown,egg 0.5 2.7 Totals 1.0 4.8 18

-I

VEGP - OLSER TABLE 7 (PAGE 1 OF 4) t-ffiAN LENGTHS IN MILLIMETERS WITH THE RANGE IN PARENTHESIS FOR THE LARVAL FISHES FROM THE SAVANNAH RIVER FO&EACH MONTH Month Species Januarl. February March April May July August Adpenser spp , 17.0 9.8 Alosa aestivalis 4.3 Alosa mediocris 3.7

-0 Alosa sapidissima 11.4 9.6 10.3 (5.1-11.8) (9.fi-l0.1})

Dorosoma app. 4.3 4.5 (2.7-5.0)

Clupeidae larvae 6.7 10.8 (3.2-11.3) (5.(,-lfi.0)

~ amer Lcanus 25.0 Esox niger 29.5 (20.0-39.0)

~spp. 11_5 14.5 (9.0-15.0) (6.4-25.0)

Cyprinus carpio 6.2 (5.9-6.6)

HybognathuA ~gius 21.0

VEGP - OLSER TABLE 7 (PAGE 2 OF 4)

Month Seecies January February March April May July August Notemigonus crysoleucas 6.1 5.9 (4.8-7.8)

Not rop Ls petersoni 61. 7 42.0 36.5 (56.0-66.0) (15.0-69.0) (35.0-38.0)

Cyprinidae larvae 6.5 7.1 6.3 6.4 (5.8-8.0) (4.6-10.9) (4.0-8.5) (5.3-8.2)

N Careiodes spp. 8.9 8.6 0

(8.0-9.8) (8.0-8.8)

Minytrema me1anops 12.3 11.8 12.9 (10.1-15.5) (7.7-17.0) (11.2-14.6)

Catostomidae larvae lL2 Icta1urus brunneus 145.0 17.0 .

(16.0-18.0)

Icta1urus nebu10sus 15.2 (13.6-16.0)

Icta1urus platycephl11us 16.4 17.0 (15.0-18.0)

Icta1urus punctlltus 74.0 Noturus gyrinus 14.0 I . 1 1

VEGP - OLSER

'fABLE 7 (PAGE 3 OF 4)

Month Species January February March April ~~ July August Aphredoderus sayanus 7.4 7.8 10.6 (4.0-8.0) (4.0-13.0) (3 *.2-29.0) .

Strongylura marina 15.2 Gambus La affinis 34.0 Labidesthes sicculus 5.3 (4.8-5.8)

N 57.0

~

Enneacanthus g1oriosus Lepomis auritus 50.0 Lepomis gulosus 66.0 Lepomis macrochirus 20.0 Lepomis spp . 5.7 4.8 6.4 8.2 6.4 (4.8-7.2) 0.0-7.2) (4.8-7.5) (fl.7-9.0)

Pomoxis spp. 5.6 6.4 5.1 (3)

(4.0-8.2) (4.0-11.2) (3.2-11.2)

~Ucropteru9 salmoides 30.0 Mlcropterus spp. 5.6 5.1 (4.5-5.6)

VEGP - OLSER TABLE 7 (PAGE 4 OF 4)

Month Species January February March April Hay July August Centrarchidae larvae 6.2 (3.8-8.4)

Etheostoma fricksium 18.1 Perea flavescens 6.9 6.3 8.7 7.0 5.1

- - (5.6-8.0) (5.3-10.1) (4.5-71.0) (6.6-7. 5)

Percldae larvae 6.7 5.1 4.9 (5.4-7.7) (4.2-8.0) (4.5-5.3)

Unknown larvae 5.6 (a) (n)

a. Damaged specimen I I

SOUTH CAROLINA BARNWELL COUNTY

/

/

TRANSECT 151.2 TRANSECT TRANSECT 150.6 GEORGIA BURKE COUNTY

• STATION LOCATION VOGTLE STATION LOCATION FOR THE SAVANNAH RIVER ELECTRIC GENERATING PLANT LARVAL FISH STUDY Georgia Power . \ UNIT 1 AND UNIT 2 FIGURE 1 433-9

26 25 24 23 22 21 20 19 18 17 16 15 14 u 13 12

~

J 11 N

"" ~ 10

~

9

~ 8

~

H p:: 7 H

< 6 5

4 3

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8 23 6 19 26 6 12 19 28 5 11 25  :...13 3 27 JAN. FEBRUARY MARCH APRIL MAY JULY AUGUST VOGTLE AIR TEMPERATURES FOR THE DAY ELECTRIC GENERATING PLANT SURVEYS FOR 1974 Georgia Power . \ UNIT 1 AND UNIT 2 FIGURE 2 433*9

27 26 25 24 23 22 21 20 19 18 17 16 -

15 u 14 13

~ 12

J 11

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p:: 8

~ 7 6

5 4

3 2

1 8 22 5 18 26 5 11 18 .27 4 10 25 13 2 26 JANUARY FEBRUARY- MARCH APRIL; MAY JULY AUGUST VOGTLE AIR TEMPERATURES FOR THE NIGHT ELECTRIC GENERATING PLANT SURVEYS FOR 1974 Georgia Power . \ UNIT 1 AND UNIT 2 FIGURE 3 433-9

27 26 25 24 23 22 21 20 19 18 17 16 r-..

15 u 14

~ 13

~

12 N

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11 10

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8

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3 6

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1 8 23 6 19 26 6 12 19 28 5 11 25 13 3 27 JANUARY FEBRUARY MARCH APRIL MAY JULY AUGUST VOGTLE WATER TEMPERATURES FOR THE SAVANNAH ELECTRIC GENERATING PLANT RIVER DAY SURVEYS FOR 1974 Georgia Power . \ UNIT 1 AND UNIT 2 FIGURE 4 433*9 I

27 26 25 24 23 22 21 20 19 18 17 16 15 u

14 13

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p 12 11 N

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w 9

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8 22 5 18 26 5 11 18 27 4 10 25 13 2 26 JANUARY FEBRUARY MARCH APRIL MAY JULY AUGUST VOGTLE WATER TEMPERATURES FOR THE SAVANNAH ELECTRIC GENERATING PLANT RIVER NIGHT SURVEYS FOR 1974 Georgia Power . \ UNIT 1 AND UNIT 2 FIGURE 5 433*9

11 10 9

8 7

r-.. 6

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p.j p.j 5

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1 8 23 6 19 26 6 12 19 28 5 11 25 13 3 27 JANUARY FEBRUARY MARCH APRIL MAY JULY AUGUST VOGTLE DISSOLVED OXYGEN CONCENTRATIONS FOR THE ELECTRIC GENERATING PLANT SAVANNAH RIVER DAY SURVEYS FOR 1974 Georgia Power . \ UNIT 1 AND UNIT 2 FIGURE 6 433*9 r

11 10 9

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1 5 11 18 27 4 10 25 13 2 26 MARCH APRIL MAY JULY AUGUST VOGTLE DISSOLVED OXYGEN CONCENTRATIONS FOR THE ELECTRIC GENERATING PLANT SAVANNAH RIVER NIGHT SURVEYS FOR 1974 Georgia Power . \ UNIT 1 AND UNIT 2 FIGURE 7 433*9