ML071710061

Survey of the Feeding Habits of Fishes in the Savannah River, Burke County, Georgia, from October, 1980 Through September, 1981, Operating License Stage Environmental Report Technical Document.

ML071710061
Person / Time
Site:	Vogtle, 05200011
Issue date:	10/31/1982
From:	Miracle R D, Wiltz J W Georgia Power Co
To:	Office of New Reactors
References
+reviewedcja, AR-07-0924
Download: ML071710061 (48)

Text

VOGTLE ELECTRIC GENERATING PLANT SURVEY OF THEFEEDINGHABITSOFFISHESIN THE SAVANNAH RIVER, BURKE COUNTY.GEORGIA, FROM OCTOBER.1980 THROUGH SEPTEMBER.

1981 OPERATING LICENSE STAGE ENVIRONMENTAL REPORT TECHNICAL DOCUMENT R.DEAN MIRACLE PRINCIPAL INVESTIGATOR REPORT WRITTEN BY J.WAYNE WILTZ GEORGIA POWER COMPANY ENVIRONMENTAL AFFAIRS CENTER OCTOBER.1982 LIST OF TABLES INTRODUCTION METHODS RESULTS AND DISCUSSION CONCLUSIONS REFERENCES TABLES VEGP-OLSER TABLE OF CONTENTS i-Page ii 1 2 2 7 8 10-------

VEGP-OLSER LIST OF TABLES 1.Food Habits of the Bowfin (Amia calva)in the Savannah 10 River 1980-19812.Food Habits of the Chain Pickerel (Esox niger)in the 11 Savannah River 1980-1981 3.Food Habits of the Eastern Silvery Minnow (Hybognathus 12 regius)in the Savannah River 1980-1981 4.Food Habits of the Golden Shiner (Notemigonus cryso1eucas) 13 in the Savannah River 1980-1981 5.Food Habits of the Spottai1 Shiner (Notropis hudsonius) 14 in the Savannah River 1980-1981 6.Food Habits of the Bannerfin Shiner (Notropis 1eedsi)15 in the Savannah River 1980-1981 7.Food Habits of the Taillight Shiner (Notropis macu1atus) 16 in the Savannah River 1980-1981 8.Food Habits of the Coastal Shiner (Notropis petersoni) 17 in the Savannah River 1980-1981 9.Food Habits of the Spotted Sucker (Minytrema me1anops)18 in the Savannah River 1980-1981 10.Food Habits of the Snail Bullhead (Icta1urus brunneus)20 in the Savannah River 1980-1981 11.Food Habits of the White Catfish (Icta1urus catus)in 21 the Savannah River 1980-1981 12.Food Habits of the Channel Catfish (Icta1urus punctatus) 23 in the Savannah River 1980-1981 13.Food Habits of the Pirate Perch (Aphredoderus sayanus)25 in the Savannah River 1980-1981 14.FOod Habits of the Brook Silvers ide (Labidesthes siccu1us)26 in the Savannah River 1980-1981 15.Food Habits of the Redbreast Sunfish (Lepomis auritus)28 in the Savannah River 1980-1981 ii VEGP-OLSER LIST OF TABLES CONTINUED 16.Food Habits of the Warmouth (Lepomis gu1osus)in the 31 Savannah River 1980-1981 17.Food Habits of the Bluegill (Lepomis macrochirus) in 32 the Savannah River 1980-1981 18.Food Habits of the Redear Sunfish (Lepomis micro1ophus) 35 in the Savannah River 1980-1981 19.Food Habits of the Spotted Sunfish (Lepomis punctatus) 37 in the Savannah River 1980-1981 20.Food Habits of the Largemouth Bass (Micropterus sa1moides) 39 in the Savannah River 1980-1981 21.Food Habits of the Black Crappie (Pomoxis nigromacu1atus) 41 in the Savannah River 1980-1981 22.Food Habits of the Yellow Perch (Perea f1avescens) in the 43 Savannah River 1980-1981 iii--

VEGP-OLSER INTRODUCTION Construction of the Vogtle Electric Generating Plant (VEGP)began in June, 1974,andwas 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 on thewest 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)operatedbyE.I.DuPontDeNemours and Company for the U.S.Department of Energy.The plant site ismately 26 miles south-southeast of Augusta, Georgia.The site isted 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 isduled to go into service in March, 1987, and Unit 2 in September, 1988.The exhaust steam will be cooledbya closed-cycle cooling systemploying natural draft towers using make-up water from thenah River.Low volume wasteandblowdown from both cooling towers will ultimately 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 Stream classification near the VEGP is listed as"Fd sh Lng;" 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'sence on the river.The impoundment of the river above Augusta, Georgia, has reduced the transport of sediments and allochthonous particulateganic 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 beenducted periodically since 1951 and were Patrick, et(3r" Academy of Natural Sciences of Philadelphia, and Matthews.Georgia PowerCompanywas required by Chapter 2.2 of U.S.Nucleartory Commission Regulatory Guide 4.2, Revision 2, 1976, to conduct alogical study to describe the flora and fauna in the vicinity of the site, their habitats, and distribution.

The study should also identify organisms defined to be"important" because of commercial or recreational value, threatened or endangered status, effects on other lIimportant" species, or being a biological indicator of radionuclides in the environment.

1 VEGP-OLSER In addition, food chains and other inter species relationships were to be identified.

To this end, a study of the feeding habits of fishes in the Savannah River was conducted between October, 1980, through September, 1981.METHODS Adult and juvenile fish were sampled with a Smith-Root Vl-Afisher mountedonaVa1co boat between river miles145and 155.pling was conducted in October and December of 1980 and January, March, April, June, August, and September of 1981.Sampling usually began during the late afternoon and continued into the evening hours.An attemptwasmade to collect ten specimens of each species monthly;but for some species, this was not accomplished.

Large fish were measured, weighed, and the stomachs removed in the field and preserved in ten percent formalin.Smaller fish wereated and preserved in ten percent formalin.All samples were transported to the Environmental Affairs Center for laboratory processing and data analysis.In the laboratory, length and weight measurements of the small fish were recorded.The stomachs were removed and preserved in 70 percent ethanol.Contents from each large and small specimen were filtered through a U.S.Standard.#70mesh sieve.Organisms in the sieve along with any debris were placed into a watch glass for sorting.The sample was examined under a stereo microscope (SOX magnification) and all visible organismsremovedand placed into a labeled vial of 70 percent ethanol.The vial containing the sorted sample was emptied into a petri dish and examined under a stereo microscope.

Each organism was identified to the lowest practical taxon and enumerated.

In some instances, samples were subsampled and total numbers estimated.

Subsampling was accomplished by withdrawingafew milliliters from the sample and multiplying thesults by the total volume in the sample.An important food item was considered as an organism occurring in the greatest number of fish stomachs.A table for each species will present the number of stomachs analyzed per month, the food item eaten and number of stomachs in which it occurred, and totals for each.RESULTS AND DISCUSSION As part of the food habit study, 22 species of fish representing 9 families and 13 genera were collected.

No attemptwasmade to show seasonal dietary changes in the food organisms ingested.Each species will be discussed briefly to indicate the more important food items consumed.2----

VEGP-OLSER Bowfin (Anlia calva)A total of 18 bowfins were analyzed ranging in length from 31.0 to 66.0 centimeters (cm)total length(TL)and weighing from 255.0 to 2175.2 grams (g).As a result of the low number of stomachs examined, very limited data were obtained.Published(6,ports showed that bowfin fed mainly on crayfish, insects, and fish.Table 1 presents the food 6 items eaten by the bowfin and supported the findings given by Carlander.()An interesting note was the presence of a well-digested mammalian species.Chain Pickerel (Esox niger)A total of 33 chain pickerels were analyzed ranging in lengt%)from 17.0 to 47.0cmTL and weighing from 25.0 to 766.0 g.Car lander stated that fish are the main food item for pickerel over 100 mm TL andtebrates for individuals under 100 mm.Table 2 supported those findings because 12 of the 33 stomachs analyzed contained unknown fish.Bluegill (Lepomis macrochirus), the next important food item, was present in four stomachs.Ten of the food items consumed by the chain pickerel were fish.Eastern Silvery Minnow (Hybognathus regius)A total of 29 eastern silvery minnows were analyzed ranging in length from 6.0 to 8.5cmTLand weighing from 1.7 to 6.0 g.Published indicated that bottom ooze and algae were the principal food items.Our data presented in table 3 supported those findings.Many of the stomachs contained food, but only two organisms could be identified.

Golden Shiner (Notemigonus crysoleucas)

A total of 33 golden shiners were analyzed ranging in length from 6.5 to 20.0cmTL and weighing from 2.0 to 72.5 g.Golden shiners were reported to feed on phytoplankton, insects, hydrachnids, molluscs, and Cladocera.

The food items in table 4 were in agreement with those reported by Carlander.

Cladocera.and Bryozoa were the most important food items found in 24 and 20 stomachs, respectively.

Spottail Shiner (Notropis hudsonius)

A total of 49 spot tail shiners were analyzed ranging in length from 4.1 to 10.5cmTL and weighing from 0.3 to 10.2 g.Spottail shiners were reported to feed on rotifers, algae, entomostraca, Cladocera, Hydracarina, Mollusca, small shiners, and fish eggs.The datasented in table 5 showed that the Chironomidae was the most important food item found in 32 stomachs.Algae and Pelecypoda were also very important found in 24 and 22 stomachs, respectively.

Bannerfin Shiner (Notropis leedsi)A total of 25 bannerfin shiners were analyzed ranging in length from 5.0 to 8.6cmTL and weighing from 0.8 to 4.7 g.Documentation on the 3 VEGP-OLSER feeding habits of the bannerfin shiner was not available in the literature.

Our data (table 6)indicated that the Chironomidae and Pelecypoda were the most important food items found in 16 and 14 stomachs, respectively.

Taillight Shiner (Notropis maculatus)

A total of 21 taillight shiners were analyzed ranging in length from 4.1 to 6.7cmTL and weighing from 0.5 to 2.5 g.The feeding habits of the taillight shiner were not available in the literature.

Our data, presented in table 7, showed the most important food items were Cladocera and Copepoda found in 11 and 9 stomachs, respectively.

Coastal Shiner (Notropis petersoni)

A total of 52 coastal shiners were analyzed ranging in length from 3.5 to 6.7cmTL and weighing from 0.2 to 2.2 g.Data documenting the feeding habits of the coastal shiner were not available.

Table 8 presents the food items ingested by the coastal shiner.The most important food item was Pelecypoda found in 20 stomachs.Algae and Cladocera were also important found in 15 and 13 stomachs, respectively.

Spotted Sucker (Minytrema melanops)A total of 58 spotted suckers were analyzed ranging in length to 50.0 cm TL and weighing from 6.0 to 1247.4 g.WhiteandHaag reported that spotted suckers fed on organic fragments, diatoms,pods, cladocerans, chironomids, ostracods, rotifers, and benthicbrates.The food items eaten by the spotted sucker presented in table 9 supported those findings.The most important food item was themidae found in 44 stomachs.The next important food items were the Cladocera, Ostracoda, and Copepoda found in 35, 35, and 33 stomachs, respectively.

Snail Bullhead (Ictalurus brunneus)A total of 18 snail bullheads were analyzed ranging in length from 6.0 to 23.0cmTL and weighing from 2.2 to 146.0 g.No data were found documenting the feeding habits of the snail bullhead.The food items consumed by the snail bullhead are presented in table 10.Chironomidae and Hydropsychidae were the most important food items, both were found in 15 stomachs.The next important food items were the unknown diptera and Philopotamidae which were found in seven stomachs.White Catfish (Ictalurus catus)A total of nine white catfishes were analyzed ranging in length from 25.5 to 43.0 cm TL and weighing from 100.0 to 1362.0 g.Published reports showed that white catfish fed on pondweeds, aquatic amphipods, clams, crayfish, mysid shrimp, fish, and fish eggs.4------

VEGP-OLSER The data presented in table 11 supported those findings.The most important food item was the Chironomidae found in seven stomachs.The next important food items were the Cladocera, Hydropsychidae, unknown diptera, and algae all found in-five stomachs.Channel Catfish (Ictalurus punctatus)

A total of 20 channel catfishes were analyzed ranging in length from 9.0 to 60.0cmTL and weighing from 5.7 to 2384.0 g.Channel catfish under 100 mm fed on aquatic insects and bottom ar{gJopods; whereas, over 100 mm, they were omnivorous or piscivorous.

The most important food item, presented in table 12, was the Chironomidae found in 12 stomachs.The next important food items were the Hydropsychidae and Leptoceridae found in ten and eight stomachs, respectively.

Pirate Perch (Aphredoderus sayanus)A total of four pirate perchs were analyzed ranging in length from 2.5 to 8.0cmTL and weighing from 1.0 to 6.5 g.Very limited data were obtained due to the low number of stomachs analyzed.Published reports indicated that pirate perch insects, cladocerans, isopods, am-phipods, crayfish, and fish.The data presented in table 13 showed that the most important food item was the Chironomidae found in three stomachs.The next important food items were the Hydropsychidae and Philopotamidae both found in two stomachs.Brook Silvers ide (Labidesthes sicculus)A total of 54 brook silvers ides were analyzed ranging in length from 2.5 to 8.0cmTL and weighing from only a trace to 2.6 g.Published reports showed that the brooflottYZJside fed on Cladocera, insects, cope-pods, and small crustaceans.

Data from table 14 indicated that the Chironomidae was the most important food item found in 39 stomachs.The next important food items were the Cladocera and Copepoda found in 26 and 21 stomachs, respectively.

Redbreast Sunfish (Lepomis auritus)A total of 89 redbreast sunfishes were analyzed ranging in length from 5.5 to 20.5cmTLand weighing from 2.6 to 198.5 g.Redbreast sunfish fed molluscs, bottom invertebrates, and possibly small fish.The most important food item, presented in table 15, was the Chironomidae found in 62 stomachs.The next important food items were the Hydropsychidae, unknown diptera, and Gastropoda found in 31, 28, and 28 stomachs, respectively.

Warmouth (Lepomis gulosus)A total of 21 warmouths were analyzed ranging in length from 6.5 to 21.5 cm TL and weighing from 5.0 to rI25g.Warmouth fed onstraca, insects, crayfish, and fish.j The most important food item 5 VEGP-OLSER was the Chironomidae found in six stomachs (table 16).The next important food items were the Decapoda and Gastropoda both found in four stomachs.Bluegill (Lepomis macrochirus)

A total of 88 bluegills were analyzed ranging in length from 8.5 to 24.0cmTL and weighing from 8.0 to 270.0 g.Bluegill fed on aquatic insects, crustacea, rotifers, crayfish, terrestrial arthropods, small fish, and aquatic vegetation.

The most important food item, presented in table 17, was the Chironomidae found in 85 stomachs.The next important food items were the unknown diptera and Cladocera found in 55 and 45 stomachs, respectively.

Redear Sunfish (Lepomis microlophus)

A total of 72 redear sunfishes were analyzed ranging in length from 9.5 to 29.0 cm TL and weighing from 15.0 to 623.7 g.Published reports redear sunfish fed on insects, snails, cladocerans, and cope-pods.Table 18 showed the most important food item was Pelecypoda found in 60 stomachs.The next important food items were the Chironomidae and Gastropoda found in55and45 stomachs, respectively.

Spotted Sunfish (Lepomis punctatus)

A total of 29 spotted sunfishes were analyzed ranging in length from 8.0 to 16.0 cm TL and weighing from 8.5 to 100.0 g.Spotted sunfish fed polychaetas, molluscs, insects, crustaceans, fish, and algae.As presented in table 19, the most important food item was algae found in eight stomachs.Largemouth Bass (Micropterus salmoides)

A total of 91 largemouth basses were analyzed ranging in length from 5.5 to 42.0cmTL and weighing from 1.8 to 1078.0 g.Largemouth bass fed on microcrustaceans, cladocerans, amphipods, entomost{!!1' rotifers, decapods, insects, fish, frogs, salamanders,andmammals.The most important food item, presented in table 20,wasunknown fish found in 35 stomachs.The next important food items were the Cyprinidae and Chironomidae found in 12 and 10 stomachs, respectively.

Black Crappie (Pomoxis nigromaculatus)

A total of 35 black crappies were analyzed ranging in length from 11.5 to 28.0cmTL and weighing from 17.0 to 300.0 g.Black crappie f{1l on entomostraca, copepods, cladocerans, insects, fish, and algae.)The most important food item was the Chironomidae found in 26 stomachs (table 21).The next important food items were the Culicidae andpoda found in 13 and 12 stomachs, respectively.

6......

VEGP-OLSER Yellow Perch (Perca f1avescens)

A total of 51 yellow perches were analyzed ranging in length from 8.0 to 35.0cmTL and weighing from 4.0 to 681.0 g.Yellow perch fed on invertebrates, c1adotI O,ns, ostracods, insects, decapods, molluscs, fish, and fish eggs.Table 22 showed that the Chironomidae found in 40 stomachs was the most important food item.The next important food items were the Copepoda and Gastropoda found in 24 and 17 stomachs, respectively.

CONCLUSIONS Results of the monitoring program on the food habits of the Savannah River fishes generally supported existing data.Most organismsring in the aquatic habitat were being utilized as indicated by the variety of food items observed.The food items most utilized were the Chironomidae followed by the C1adocera, Copepoda, and Hydropsychidae.

7 VEGP-OLSER REFERENCES 1.Environmental Protection Division, Water Quality Monitoring Data for Georgia Streams, Department of Natural Resources, Atlanta, Georgia, 1981.2.Patrick, R., Cairns, J.Jr., and Roback, S.S.,"An Ecosystematic Study of the Fauna and Flora of the Savannah River," Proceedings of the Academy of Natural Science of Philadelphia 118, Philadelphia, Pennsylvania, pp 109-407, 1967.3.Academy of Natural Sciences of Philadelphia, Summary of Studies on.the Savannah River 1951-1970 for E.I.DuPontDeNemours andCompany,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.DuPontDeNemoursandCompany, Savannah River Laboratory, Aiken, South Carolina, 1982.6.Carlander,K.D**Handbook of Freshwater Fishery Biology, Vol.1, Iowa State University Press, Ames, Iowa,p752, 1969.7.White,D.S.and Haag, K.H.,"Foods and Feeding Habits of the Spotted Sucker, Minytrema melanops (Rafinesque)," The American Midland Naturalist 98, p 137, July 1977.8.Borgeson,D.P.and McCammon,G.W.,

Catfish (Ictalurus catus)of the Sacramento-San Joaquin Delta," California Fish and Game 53, p 254, 1967.9.Shepherd, M.E.and Huish, M.T.,"Age, Growth, and Diet of the Pirate Perch in a Coastal Plain Stream of North Carolina,"actions of the American Fisheries Society 107.p 457.May 1978.10.Scott, W.B.and Crossman, E.J., Freshwater Fishes of Canada.Fisheries Research Board of Canada Bulletin 184, Ottawa.Canada, p 966.1973.11.Carlander, K.D., Handbook of Freshwater Fishery Biology, Vol.2, Iowa State University Press, Ames, Iowa, p 431, 1977.12.Pflieger, W.L., The Fishes of Missouri, Missouri Department of Conservation,p343, 1975.8 VEGP-OLSER REFERENCES (Con't.)13.Desselle, W.J., et al.,"A Discriminant Functions Analysis of Sunfish (Lepomis)Food Habits and Feedings Niche Segregation in the Lake Pontchartrain, Louisiana Estuary," Transactions of the American Fisheries Society 107, p 651, September 1978.9 VEGP-OLSER TABLE 1 FOOD HABITS OF THE BOWFIN (AMIA CALVA)IN THE SAVANNAH RIVER Food Items Invertebrate Material'J Crustacea Decapoda Cambaridae Palaemonidae Insecta Diptera Chironomidae Coleoptera Trichoptera Unknown trichoptera Vertebrate Material Teleostomi Notropis spp.Labidesthes sicculus Unknown'fishes Mammal Total Number of Organisms 1 1 1 1 1 1 P Number of Stomachs Containing Organism 1 1 1 1 1 1 1 1 1-a.P indicates body parts were present but an accurate count of organisms could not be made.10--

VEGP-OLSER TABLE 2 FOOD HABITS OF THE CHAIN PICKEREL (ESOX NIGER)IN THE SAVANNAH RIVER 1980-1981--Food Items Invertebrate Material Bryozoa Crustacea C1adocera Insecta Diptera Chironomidae Tipulidae Unknown diptera Coleoptera Coleoptera larvae Trichoptera Hydropsychidae Gastropoda Vertebrate Material Te1eostomi Dorosoma spp.Hybognathus regius Notropis spp.Lepomis auritus Lepomis gu10sus Lepomis macrochirus Lepomis punctatus Lepomis spp.Micropterus sa1moides Unknown fishes Total Number of Organisms 1 3 1 5 1 1 1 1 3 2 2 1 4 1 3 1 13 Number of Stomachs Containing Organism 1 1 2 1 1 1 1 1 1 2 2 2 1 4 1 3 1 12 a.P indicates body parts were present but an accurate count of organisms could not be made.11 VEGP-OLSER TABLE 3 FOOD HABITS OF THE EASTERN SILVERY MINNOW (HYBOGNATHUS REGIUS)IN THE SAVANNAH RIVER 1980-1981 Food Items Invertebrate Material Insecta Coleoptera E1midae Acari 12 Total Number of Organisms 1 1 Number of Stomachs Containing Organism 1 1 I-VEGP-OLSER TABLE 4 FOOD HABITS OF THE GOLDEN SHINER (NOTEMIGONUS CRYSOLEUCAS)

IN THE SAVANNAH RIVER 1980-1981 Total Number Number of Stomachs Food Items of Organisms Containing Organism Invertebrate Material p(a)Bryozoa 20 Pectinate11a sp.P 2 P1umate11a spp.P 1 Crustacea C1adocera.1592 24 Copepoda 80 10 Ostracoda 40 6 Insecta Diptera Ceratopogonidae 11 5 Chironomidae 25 12 Unknown diptera 37 11 Hemiptera Corixidae 2 2 Trichoptera Unknown trichoptera 2 2 Homoptera Unknown homoptera 1 1 Hymenoptera Formicidae 1216 4 Unknown hymenoptera 6 3 Lepidoptera Lepidoptera larvae 1 1 Turbe11aria P1anaridae 5 1 Acari 4 3 Araneae 2 2 Pe1ecypoda P 2 Invertebrate eggs P 2 Plant Material Algae P 4 Vascular plants P 6 a.P indicates body parts were present but an accurate count of organisms could not be made.13 VEGP-OLSER TABLE 5 FOOD HABITS OF THE SPOTTAIL SHINER (NOTROPIS HUDSONIUS)

IN THE SAVANNAH RIVER 1980-1981-Food Items Invertebrate Material", Bryozoa Pectinate11a sp.Crustacea C1adocera Copepoda Insecta Diptera Chironomidae Coleoptera Unknown coleoptera P1ecoptera Unknown Hemiptera Trichoptera Hydropsychidae Philopotamidae Unknown trichoptera Hymenoptera Formicidae Unknown hymenoptera Homoptera Aphidae Co llembo1a 01igochaeta Acari Araneae Pe1ecypoda Invertebrate eggs Plant Material Algae Total Number of Organisms 13 14 152 1 2 P P 10 1 7 1 8 1 1 1 1 2 14,781 7 P Number of Stomachs Containing Organism 1 6 6 32 1 2 1 1 7 1 4 1 2 1 1 1 1 1 22 2 24--a.P indicates body parts were present but an accurate count of organisms could not be made.14 VEGP-OLSER TABLE 6 FOOD HABITS OF THE BANNERFIN SHINER (NOTROPISLEEDSI)IN THE SAVANNAH RIVER 1980-1981 Food Items Total Number of Organisms Number of Stomachs Containing Organism Invertebrate Material Crustacea C1adocera Copepoda Insecta Diptera Chironomidae Coleoptera Carabidae Unknown coleoptera Hemiptera Corixidae Tingidae Unknown hemiptera Trichoptera Hydropsychidae Unknown trichoptera Homoptera Unknown homoptera Hymenoptera Unknown hymenoptera Araneae Pe1ecypoda Plant Material Algae 6 4 1 1 277 16 1 1 3 3 10 1 1 1 2 2 21 8 6"4 1 1 2 1 3 2 6703 14 P 4 a.P indicates body parts were present but an accurate count of organisms could not be made.15 VEGP-OLSER TABLE 7 FOOD HABITS OF THE TAILLIGHT SHINER (NOTROPIS MACULATUS)

IN THE SAVANNAH RIVER 1980-1981--Food Items Invertebrate Material crustacea C1adocera Copepoda Insecta Diptera Chironomidae Unknown diptera Plant Material Vascular plant Total Number of Organisms p(a)233 438 1 3 P Number of Stomachs Containing Organism 4 11 9 1 2 1 a.P indicates body parts were present but an accurate count of organisms could not be made.16 VEGP-OLSER TABLE 8 FOOD HABITS OF THE COASTAL SHINER (NOTROPIS PETERSONI)

IN THE SAVANNAH RIVER 1980-1981 Total Number Number of Stomachs Food Items of Organisms Containing Organism Invertebrate Material Bryozoa p(a)Pectinate11a sp.3 Crustacea C1adocera 105 13 Copepoda 65 5 Insecta Diptera Chironomidae 9 5 Culicidae 3 2 Unknown diptera 40 10 Coleoptera P 1 Unknown coleoptera 4 4 Ephemeroptera Unknown ephemeroptera 1 1 Trichoptera Hydropsychidae 5 4 Unknown trichoptera 8 6 Hymenoptera Unknown hymenoptera 8 6 Unknown insects 5 5 Nematoda 1 1 Pe1ecypoda 3871 20 Invertebrate eggs 8 1 Vertebrate Material Te1eostomi Fish eggs Plant Material Algae Vascular plants 1 P P 1 15 1 a.P indicates body parts were present but an accurate count of organisms could not be made.17 VEGP-OLSER TABLE 9 (PAGE 1 OF 2)FOOD HABITS OF THE SPOTTED SUCKER (MINYTREMA MELANOPS)IN THE SAVANNAH RIVER 1980-1981 Food Items Invertebrate Material Crustacea Amphipoda C1adocera Copepoda Ostracoda Insecta Diptera Ceratopogonidae Chironomidae Culicidae Empididae Tipulidae Diptera pupa Unknown diptera Coleoptera Dytiscidae E1midae Ephemeroptera Caenidae Unknown ephemeroptera Plecoptera Unknown p1ecoptera Trichoptera Hydropsychidae Hydroptilidae Leptoceridae Phi1opotamidae Unknown trichoptera Odonata Gomphidae Unknown odonata Hymenoptera Formicidae Unknown hymenoptera Hemiptera Corixidae Unknown insects 01igochaeta Nematoda Acari 18 Total Number Number of Stomachs of Organisms Containing Organism p(a)3 2 1 11,137 35 15,786 33 7,286 35 P 1 372 25 16,906 44 366 6 10 7 10 2 7 5 298 17 1 1 43 10 2 2 16 6 1 2 39 9 1 1 3 2 P 1 14 9 1 1 11 5 1 1 1 1 1 1 3 2 63 3 14 5 11 5 VEGP-OLSER TABLE 9 (PAGE 2 OF 2)Food Items Mollusca Gastropoda Pe1ecypoda Vertebrate Material Te1eostomi Fish eggs Plant Material Algae Vascular plants Total Number of Organisms P P P 85 P P Number of Stomachs Containing Organism 1 5 16 3 1 3 a.P indicates body parts were present but an accurate count of organisms could not be made.19 VEGP-OLSER TABLE 10 FOOD HABITS OF THE SNAIL BULLHEAD (ICTALURUS BRUNNEUS)IN THE SAVANNAH RIVER 1980-1981 Food Items Iota1 Number of Organisms Number of Stomachs Containing Organism Invertebrate Material Crustacea Cladocera Ostracoda Insecta Diptera Chironomidae Unknown diptera Coleoptera E1midae Coleoptera larvae Ephemeroptera Heptageniidae Unknown ephemeroptera Plecoptera Trichoptera Hydropsychidae Leptoceridae Limnephilidae Philopotamidae Po1ycentropodidae Trichoptera pupa Unknown trichoptera Odonata Libellulidae Hymenoptera Unknown hymenoptera Unknown insects Gastropoda 3 1 2 1 67 15 48 7 2 1 1 1 9 4 3 2 p(a)1 153.15 5 4 1 1 20 7 2 2 1 1 8 5 2 2_.1 1 1 1 13 3 a.P indicates body parts were present but an accurate count of organisms could not be made.20 VEGP-OLSER TABLE 11 (PAGE 1 OF 2)FOOD HABITS OF THE WHITE CATFISH (ICTALURUS CATUS)IN THE SAVANNAH RIVER 1980-1981 Food Items Invertebrate Material Bryozoa Pectinate11a sp.P1umate11a spp.Crustacea C1adocera Copepoda Ostracoda Insecta Diptera Ceratopogonidae Chironomidae Diptera pupa Unknown diptera Coleoptera Dytiscidae E1midae Coleoptera larvae Ephemeroptera Unknown ephemeroptera P1ecoptera Unknown p1ecoptera Trichoptera Hydropsychidae Leptoceridae Po1ycentropodidae Trichoptera adults Trichoptera pupa Unknown trichoptera Unknown insects Hirudinea Acari Invertebrate eggs Gastropoda Pe1ecypoda Vertebrate Material Te1eostomi Hybognathus regius Notropis macu1atus 21 Total Number of Organisms p(a)P P 36,003 3 28 1 119 3 12 P 6 1 1 1 1 28 56 1 4 5 38 6 1 24 330 P P 5 1 Number of Stomachs Containing Organism 1 2 1 5 1 2 1 7 2 1 1 2 1 1 1 1 5 4 1 1 2 5 2 1 1 1 4 2 1 1 VEGP-OLSER TABLE 11 (PAGE 2 OF 2)Food Items Lepomis punctatus Fish eggs Plant Material Algae Total Number of Organisms 1 26,000 P Number of Stomachs Containing Organism 1 2 5 a.P indicates body parts were present but an accurate count of organisms could notbemade.22 VEGP-OLSER TABLE 12 (PAGE 1 OF 2)FOOD HABITS OF THE CHANNEL CATFISH (ICTALURUS PUNCTATUS)

IN THE SAVANNAH RIVER 1980-1981 Food Items Invertebrate Material Crustacea C1adocera Insecta Diptera Ceratopogonidae Chironomidae Empididae Unknown diptera Coleoptera Dytiscidae E1midae Gyrinidae Coleoptera adult Coleoptera larvae Unknown coleoptera Ephemeroptera Heptageniidae Unknown ephemeroptera Hemiptera Corixidae Unknown hemiptera Trichoptera Hydropsychidae Leptoceridae Limnephilidae Philopotamidae Po1ycentropodidae Trichoptera pupa Unknown trichoptera Odonata Coenagrionidae Libe11ulidae Unknown odonata Hymenoptera Unknown hymenoptera Mega10ptera Unknown mega10ptera Lepidoptera Lepidoptera larvae Unknown lepidoptera 23 Total Number of Organisms 4 142 1 12 4 6 1 6 3 11 10 5 1 12 609 10 1 31 1 2 4 1 1 21 9 P 2 3 2 Number of Stomachs Containing Organism 1 1 1 12 1 2 4 2 1 4 2 3 3 3 1 7 10 8 1 4 1 2 3 1 1 4 4 1 1 2 1 VEGP-OLSER TABLE 12 (PAGE 2 OF 2)Food Items Unknown insects Gastropoda Pelecypoda Vertebrate Material Teleostomi Notemigonus crysoleucas Notropis leedsi Noturus spp.Unknown fishes Fish eggs Chelonia Kinosternidae Plant Material Algae Vascular plants Total Number of Organisms 13 P P 1 1 1 1 6 1 P p Number of Stomachs Containing Organism 6 1 5 1 1 1 1 1 1 6 8 a.P indicates body parts were present but an accurate count of organisms could not be made.24 VEGP-OLSER TABLE 13 FOOD HABITS OF THE PIRATE PERCH (APHREDODERUS SAYANUS)IN THE SAVANNAH RIVER 1980-1981 Food Items Invertebrate Material Crustacea Ostracoda Insecta Diptera Chironomidae Unknown diptera Trichoptera Hydropsychidae Philopotamidae Unknown trichoptera Ephemeroptera Total Number of Organisms 52 1 10 3 1 P Number of Stomachs Containing Organism 1 1 3 1 2 2 1 1 a.P indicates body parts were present but an accurate count of organisms could not be made.25 VEGP-OLSER TABLE 14 (PAGE 1 OF 2)FOOD HABITS OF THE BROOK SILVERSIDE (LABIDESTHES SICCULUS)IN THE SAVANNAH RIVER 1980-1981 Total Number Number of Stomachs Food Items of Organisms Containing Organism Invertebrate Material pea)Crustacea 8 C1adocera 1428 26 Copepoda 124 21 Ostracoda P 5 Insecta Diptera P 2 Calliphoridae 1 1 Chironomidae 474 39 Unknown diptera 50 5 Coleoptera Chrysome1idae 1 1 Sco1ytidae 1 1 Staphylinidae 12 7 Unknown coleoptera 4 4 Ephemeroptera Unknown ephemeroptera 8 4 Hemiptera Corixidae 3 3 Unknown hemiptera 10 3 Trichoptera Philopotamidae 2 2 Trichoptera pupa 3 2 Unknown trichoptera 3 3 Hymenoptera Diapriidae 1 1 Formicidae 34 6 Unknown hYmenoptera 15 6 Homoptera Aphidae 26 8 Cixiidae 1 1 Unknown homoptera 8 4 Psocoptera Unknown psocoptera 3 1 Thysanoptera Thripidae 1 1 Col1embola 1 1 Insect eggs P 1 Unknown insects 2 1 Acari 1 1 26 VEGP-OLSER TABLE 14 (PAGE 2 OF 2)Food Items Araneae Pe1ecypoda Total Number of Organisms 9 110 Number of Stomachs Containing Organism 3 2 a.P indicates body parts were present but an accurate count of organisms could not be made.27 VEGP-OLSER TABLE 15 (PAGE 1 OF 3)FOOD HABITS OF THE REDBREAST SUNFISH (LEPOMIS AURITUS)IN THE SAVANNAH RIVER 1980-1981 Food Items Invertebrate Material Bryozoa Pectinatella ap.Plumatella spp.Crustacea Amphipoda Cladocera Copepoda Ostracoda Insecta Diptera Ceratopogonidae Chironomidae Culicidae Empididae Tabanidae Tipulidae Diptera adult Unknown diptera Coleoptera Dytiscidae Elmidae Gyrinidae Haliplidae Coleoptera adult Coleoptera larvae Unknown coleoptera Ephemeroptera Baetidae Caenidae Ephemerellidae Heptageniidae Tricorythidae Unknown ephemeroptera Plecoptera Perlidae Unknown plecoptera Hemiptera Belostomatidae Corixidae Unknown hemiptera 28 Total Number of Organisms p(a)P P P 13 32 14 6 21 1074 5 7 1 26 2 448 P 17 10 1 5 27 4 8 P 2 2 8 3 3 38 P 7 7 P P 15 18 Number of Stomachs Containing Organism 3 5 1 1 5 8 7 4 11 62 4 5 1 1 2 28 1 10 8 1 3 13 3 4 1 2 2 7 3 2 13 1 4 5 2 1 6 11 VEGP-OLSER TABLE 15 (PAGE 2 OF 3)Food Items Trichoptera Hydropsychidae Hydroptilidae Leptoceridae Philopotamidae Po1ycentropodidae Trichoptera adult Trichoptera pupa Unknown trichoptera Odonata Coenagrionidae Gomphidae Libe11ulidae Unknown odonata Hymenoptera Formicidae Unknown hymenoptera

.Homoptera Unknown homoptera Mega10ptera Sialidae Sisyridae Corydalidae Unknown mega10ptera Lepidoptera Lepidoptera larvae Unknown 1epidoptera Unknown insects 01igochaeta Nematoda Acari Araneae Gastropoda Pe1ecypoda Sphaeridae Total Number Number of Stomachs of Organisms Containing Organism 3001 31 1 1 55 18 256 19 132 20 34 10 99 15 160 23 P 2 1 1 4 4 4 1 3 2 2829 7 165 13 5 3 9 5 9 4 4 1 5 3 11 6 1 1 62 14 1 1 1 1 5 4 5 5 117 28 25 11 10 1 Vertebrate Material Te1eostomi Fish eggs Squamata Iguanidae 29 86 1 3 1 VEGP-OLSER TABLE 15 (PAGE3OF3)Food Items Plant Material Algae Vascular plants Total Number of Organisms P P P Number of Stomachs Containing Organism 1 13 11 a.P indicates body parts were present but an accurate count of organisms could not be made.30-VEGP-OLSER TABLE 16 FOOD HABITS OF THE WARMOUTH (LEPOMIS GULOSUS)IN THE SAVANNAH RIVER 1980-1981 Food Items Invertebrate Material Crustacea Cladocera Copepoda Ostracoda Decapoda Insecta Diptera Chironomidae Unknown diptera Coleoptera Dytiscidae Haliplidae Coleoptera adult Ephemeroptera Baetidae Caenidae Plecoptera Hemiptera Corixidae Unknown hemiptera Trichoptera Unknown trichoptera Odonata Hymenoptera Unknown hymenoptera Megaloptera Sialidae Unknown insects Nematoda Gastropoda TotalNumberNumber of Stomachs of Organisms Containing Organism p(a)3 18 2 9 1 3 1 4 4 23 6 8 2 P 1 1 1 1 1 1 1 P 1 1 1 3 1 P 1 2 2 1 1 2 2 P 1 1 1 2 1 2 1 1 1 P 4 Vertebrate Material Teleostomi Fish eggs Lepomis macrochirus Unknown fishes P 1 2 1 1 2 a.P indicates body parts were present but an accurate count of organisms could not be made.31 VEGP-OLSER TABLE 17 (PAGE 1 OF 3)FOOD HABITS OF THE BLUEGILL (LEPOMIS MACROCHIRUS)

IN THE SAVANNAH RIVER 1980-1981 TotalNumberNumber of Stomachs Food Items of Organisms Containing Organism Invertebrate Material p(a)Bryozoa 22 Pectinate1la sp.P 16 Plumatella spp.P 3 Crustacea Amphipoda 54 13 Cladocera 4565 45 Copepoda 629 34 Ostracoda 450 30 Isopoda 10 5 Insecta Diptera Ceratopogonidae 89 19 Chironomidae 7695 85 Culicidae 34 8 Empididae 3 3 Unknown diptera 1631 55 Coleoptera P 3 Dytiscidae 33 14 Elmidae 35 15 Gyrinidae 39 6 Haliplidae 1 1 Helodidae 1 1 Cu rculionidae 1 1 Coleoptera adult 44 16 Coleoptera larvae 5 4 Unknown coleoptera 2 2 Ephemeroptera Baetidae 3 3 Caenidae 8 8 Ephemerellidae 4 2 Tricorythidae 2 1 Heptageniidae 5 3 Unknown ephemeroptera 26 19 Plecoptera p 1 Nemouridae 1 1 Unknown plecoptera 1 1 Hemiptera p 3 Corixidae 57 17 Unknown hemiptera 43 13 32 VEGP-OLSER TABLE 17 (PAGE 2 OF 3)Food Items Trichoptera Hydropsychidae Hydroptilidae Leptoceridae Philopotamidae Po1ycentropidae Trichoptera adult Trichoptera pupa Unknown trichoptera Odonata Coenagrionidae Libe11ulidae Hymenoptera Formicidae Xye1idae Homoptera Aphidae Neuroptera Mega10ptera Sialidae Sisyridae Orthroptera Co11embo1a Lepidoptera Lepidoptera larvae Lepidoptera adult Unknown insects 01igochaeta Hirudinea Acari Araneae Gastropoda Ancylidae Pe1ecypoda Sphaeridae Vertebrate Material Te1eostomi Lepomis spp.Unknown fishes Fish eggs Fish larvae 33 Total Number of Organisms 364 8 41 50 194 45 25 22 5 1 1 65 7422 1 1 21 1 6 1 14 1 1 4 3 1 42 1 1"26 16 219 1 43 22 1 1 10,767 589 Number of Stomachs Containing Organism 16 3 16 6 14 19 10 11 3 1 1 19 11 1 1 1 1 4 1 1 1 1 3 2 1 12 1 1 14 6 27 1 13 3 1 1 13 1 VEGP-OLSER TABLE 17 (PAGE 3 OF 3)Food Items Plant Material Phycomycetes Algae Vascular plants Total Number of Organisms P P P Number of Stomachs Containing Organism 1 28 14 a.P indicates body parts were present but an accurate count of organisms could notbemade.34-VEGP-OLSER TABLE 18 (PAGE 1 OF 2)FOOD HABITS OF THE REDEAR SUNFISH (LEPOMIS MICROLOPHUS)

IN THE SAVANNAH RIVER 1980-1981 Food Items Invertebrate Material Bryozoa Pectinate11a sp.Crustacea Amphipoda C1adocera Copepoda Ostracoda Isopoda Insecta Diptera Ceratopogonidae Chironomidae Culicidae Tipulidae Unknown diptera Coleoptera Dytiscidae E1midae Haliplidae Coleoptera adult Coleoptera larvae Unknown coleoptera Ephemeroptera Baetidae Caenidae Metretopodidae Tricorythidae Unknown ephemeroptera P1ecoptera Nemouridae Per1idae Unknown p1ecoptera Hemiptera Corixidae Tingidae Unknown hemiptera Trichoptera Hydropsychidae Hydroptilidae Leptoceridae Phi1opotomidae 35 Total Number of Organisms 10 307 53 23 12 P 48 1466 6 1 437 P 23 9 2 1 3 1 2 3 1 5 15 P 1 1 1 8 1 2 11 7 19 4 Number of Stomachs Containing Organism 2 3 6 7 9 8 6 3 22 55 6 1 24 1 7 8 2 1 3 1 2 3 1 2 10 1 1 1 1 5 1 2 8 3 12 4 VEGP-OLSER TABLE 18 (PAGE 2 OF 2)Food Items Po1ycentropodidae Trichoptera adult Trichoptera pupa Unknown trichoptera Odonata Coenagrionidae Gomphidae Libellulidae Unknown odonata Hymenoptera Unknown hymenoptera Mega10ptera Sialidae Sisyridae Unknown mega10ptera Orthroptera Unknown orthroptera Lepidoptera Lepidoptera larvae Insect eggs Unknown insects Hirudinea Nematoda Oligochaeta Po1ychaeta Acari Araneae Gastropoda Ancylidae Pe1ecypoda Total Number Number of Stomachs of Organisms Containing Organism 435 21 2 2 5 4 89 15 1 1 6 5 1 1 4 3 4 3 37 14 4 3 29 5 1 1 4 2 P 1 5 4 1 1 3 2 28 1 7 2 54 4 1 1 P 45 1 1 P 60 Vertebrate Material Te1eostomi Fish eggs Plant Material Algae Vascular plants 2081 P P 4 22 6 a.P indicates body parts were present but an accurate count of organisms could not be made.36 VEGP-OLSER TABLE 19 (PAGE 1 OF 2)FOOD HABITS OF THE SPOTTED SUNFISH (LEPOMIS PUNCTATUS)

IN THE SAVANNAH RIVER 1980-1981 Total Number Number of Stomachs Food Items of Organisms Containing Organism Invertebrate Material p(a)Crustacea 1 Amphipoda 1 1 C1adocera 3 1 Copepoda 11 2 Ostracoda 9 2 Decapoda 1 1 Insecta Diptera Ceratopogonidae 2 1 Chironomidae 159 17 Culicidae 12 2 Diptera pupa 1 1 Coleoptera Dytiscidae 8 4 Gyrinidae 1 1 Halip lidae 3 3 Coleoptera adult 11 4 Unknown coleoptera 4 2 Ephemeroptera Caenidae 1 1 Heptageniidae 5 2 Unknown ephemeroptera 4 3 P1ecoptera Nemouridae 1 1 Per10didae 1 1 Unknown p1ecoptera 2 2 Hemiptera P 2 Corixidae 7 2 Unknown hemiptera 2 1 Trichoptera Hydropsychidae 24 4 Leptoceridae 49 4 Phi1opotamidae 5 3 Po1ycentropodidae 8 3 Trichoptera adult 12 1 Trichoptera pupa 2 2 Unknown trichoptera 23 4 Odonata Aeshnidae 1 1 Gomphidae 1 1 Unknown odonata 3 3 37 VEGP-OLSER TABLE 19 (PAGE 2 OF 2)Food Items Hymenoptera Unknown hymenoptera Megaloptera Sisyridae Lepidoptera Lepidoptera larvae Unknown insects Nematoda Turbellaria Planariidae Acari Araneae Gastropoda Pelecypoda Vertebrate Material Teleostomi Unknown fishes Plant Material Algae Vascular plants Total Number of Organisms 7 1 4 1 3 1 1 1 P P 1 P P Number of Stomachs Containing Organism 2 1 4 1 3 1 1 1 4 3 1 8 4 a.P indicates body parts were present but an accurate count of organisms could not be made.38 VEGP-OLSER TABLE 20 (PAGE 1 OF 2)FOOD HABITS OF THE LARGEMOUTH BASS (MICROPTERUS SALMOIDES)

IN THE SAVANNAH RIVER 1980-1981 Food Items Total Number of Organisms Number of Stomachs Containing Organism Invertebrate Material Crustacea Amphipoda Copepoda Isopoda Decapoda Cambaridae Pa1aemonidae Insecta Diptera Chironomidae Unknown diptera Coleoptera Gyrinidae Ephemeroptera Baetidae Heptageniidae Unknown ephemeroptera P1ecoptera Per1idae Trichoptera Hydropsychidae Po1ycentropodidae Trichoptera adult Trichoptera pupa Unknown trichoptera Odonata Libellulidae Hemiptera Corixidae Unknown hemiptera Hymenoptera Unknown insects Mollusca Gastropoda Ancylidae Pe1ecypoda 1 1 1 1 1 1 9 6 8 4 1 1 48 10 4 2 p(a)1 P 1 1 1 2 2 1 1 12 3 5 4 1 1 1 1 11 4 1 1 P 2 35 4 5 2 1 1 2 2 26 1 2 2 1 1 1 1 Vertebrate Material Te1eostomi C1upeidae Esox spp.39 1 1 1 1 VEGP-OLSER TABLE 20 (PAGE 2 OF 2)Food Items Ictaluridae Hybognathus regius Notemigonus crysoleucas Notropis maculatus Notropis spp, Cyprinidae Labidesthes sicculus Lepomis macrochirus Lepomis spp.Centrarchidae Etheostoma spp.Unknown fishes Total Number of Organisms 1 9 1 9 9 23 2 1 4 3 1 54 Number of Stomachs Containing Organism 1 5 1 5 7 12 2 1 4 3 1 35 a.P indicates body parts were present but an accurate count of organisms could not be made.40 VEGP-OLSER TABLE 21 (PAGE 1 OF 2)FOOD HABITS OF THE BLACK CRAPPIE (POMOXISNIGROMACULATUS)

IN THE SAVANNAH RIVER 1980-1981 Food Items Invertebrate Material Bryozoa Pectinate11a spp.Crustacea Amphipoda C1adocera Copepoda Ostracoda Insecta Diptera Ceratopogonidae Chironomidae Culicidae Unknown diptera Coleoptera Dytiscidae E1midae Ephemeroptera Baetidae Caenidae Ephemere11idae Leptoph1ebiidae Tricorythidae Unknown ephemeroptera Hemiptera Corixidae Unknown hemiptera P1ecoptera Nemouridae Trichoptera Hydropsychidae Philopotamidae Leptoceridae Po1ycentropodidae Trichoptera adult Unknown trichoptera Vertebrate Material Te1eostomi Esox spp.Hybognathus regius 41 Total Number of Organisms 2 19 709 2 P 3 371 1858 36 1 8 P 44 1 2 2 3 9 P 69 12 21 P 22 11 1 1 25 9 1 1 Number of Stomachs Containing Organism 1 2 2 12 2 2 1 26 13 9 1 2 3 1 1 1 1 2 6 3 8 2 2 3 5 6 1 1 3 1 1 1 VEGP-OLSER TABLE 21 (PAGE 2 OF 2)Food Items Notropis hudsonius Notropis spp.Cyprinidae Unknown fishes Total Number of Organisms 1 2 4 15 Number of Stomachs Containing Organism 1 2 1 9 a.P indicates body parts were present but an accurate count of organisms could not be made.42 VEGP-OLSER TABLE 22 (PAGE 1 OF 2)FOOD HABITS OF THE YELLOW PERCH (PERCA FLAVESCENS)

IN THE SAVANNAH RIVER 1980-1981 TotalNumberNumber of Stomachs Food Items of Organisms Containing Organism Invertebrate Material p(a)Bryozoa 7 Pectinate11a sp.P 3 Plumatellaspp, P 2 Crustacea Amphipoda 1 1 C1adocera 518 19 Copepoda 1287 24 Isopoda 2 1 Ostracoda 29 7 Insecta Diptera P 1 Ceratopogonidae 8 6 Chironomidae 394 40 Culicidae 3 3 Empididae 1 1 Diptera pupa 2 2 Unknown diptera 61 13 Coleoptera Dytiscidae 31 10 E1midae 2 2 Coleoptera larvae 20 2 Ephemeroptera Caenidae 1 1 Heptageniidae 1 1 Unknown ephemeroptera 11 6 Hemiptera P 1 Corixidae 182 11 Unknown hemiptera 2 1 Trichoptera Hydropsychidae 23 7 Leptoceridae 4 3 Philopotamidae 2 2 Po1ycentropodidae 13 7 Trichoptera pupa 3 2 Unknown trichoptera 1 1 P1ecoptera Unknown p1ecoptera 1 1 Odonata Unknown odonata 4 2 Homoptera Unknown homoptera 1 1 43 VEGP-OLSER TABLE 22 (PAGE 2 OF 2)Food Items Megaloptera Sialidae Orthoptera Unknown orthoptera Insect eggs Acari Araneae Gastropoda Ancylidae Pelecypoda Vertebrate Material Teleostomi Notropis spp.Unknown fishes Fish eggs Plant Material Algae Vascular Plants Total Number of Organisms 11 1 P 47 2 P 5 P 1 3 582 p P Number of Stomachs Containing Organism 2 1 1 12 1 17 4 15 1 3 2 1 1 a.P indicates body parts were present but an accurate count of organisms could not be made.44