Analysis of Plankton Ingested by Stizostedium Vitreum Vitreum (Mitchill) Fry and Concurrent Vertical Plankton Tows from Southwestern Lake Erie, May 1961 and May 1962

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1966-03

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Abstract

The analysis of plankton tows for May, 1961, and May, 1962, showed four species of diatoms, Melosira binderana, M. ambigua, Fragilaria capucina and F. crotonensis to be dominant. The analysis of the intestinal tract of the walleye fry showed these four species to be dominant in the fry up to 9 mm. Those fry above 9 mm contained zooplankton as well as species of these diatoms. This preliminary study indicates a change in food habits of the walleye fry at the 9-mm stage.

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Author Institution: Department of Biology, Central Michigan University, Mt. Pleasant, Michigan

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The Ohio Journal of Science. v66 n2 (March, 1966), 193-197