Record Display for the EPA National Library Catalog


Main Title Food Selection and Feeding Relationships of Yellow Perch 'Perca flavescens' (Mitchell), White Bass 'Morone chrysops' (Rafinesque), Freshwater Drum 'Aplodinotus grunniens' (Rafinesque), and Goldfish 'Carassius auratus' (Linneaus) in Western Lake Erie.
Author Kenaga, David E. ; Cole., Richard A. ;
CORP Author Michigan State Univ., East Lansing. Inst. of Water Research.;Detroit Edison Co., Mich.;Environmental Protection Agency, Washington, D.C.
Year Published 1975
Report Number MSU-IWR-TR-75-0032.5;
Stock Number PB-251 208
Additional Subjects Fresh water fishes ; Thermal pollution ; Animal nutrition ; Lake Erie ; Cooling water ; Feeding stuffs ; Perch ; Bass ; Food habits ; Sites ; Electric power plants ; Size determination ; Food consumption ; Perca flavescens ; Morone chrysops ; Aplodinotus grunniens ; Carassius auratus
Library Call Number Additional Info Location Last
NTIS  PB-251 208 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 57p
The study was undertaken as part of an investigation of the impact of once through cooling at a large power plant in Western Lake Erie and is an attempt to assess the relationship among fish based on foods consumed. Potential food organisms and stomach contents of yellow perch, white bass, freshwater drum and goldfish were sampled and compared over a two year period. On the basis of differences in food size alone, young of the year fish did not appear to be in competition but as they became larger, all but goldfish consumed the same mean size foods. Within a fish species, mean prey size varied little in fish older than age class zero. Goldfish differed markedly by lacking the prey size selectivity demonstrated by the other fish species. Some ramifications of food size and prey selectivity in relation to trophic dynamics, feeding efficiency, composition and distribution of fish species, and the use of cooling water by large power plants and their possible impact upon prey sizes are discussed.