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Aquaculture and Fisheries Commons

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Diet

2001

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Full-Text Articles in Aquaculture and Fisheries

Diet Dynamics Of The Juvenile Piscivorous Fish Community In Spirit Lake, Iowa, Usa, 1997–1998, M. E. Pelham, Clay L. Pierce, Joe G. Larscheid Dec 2001

Diet Dynamics Of The Juvenile Piscivorous Fish Community In Spirit Lake, Iowa, Usa, 1997–1998, M. E. Pelham, Clay L. Pierce, Joe G. Larscheid

Natural Resource Ecology and Management Publications

We assessed temporal dynamics and variation among species and age-classes in the diets of age 0 and age 1 piscivorous fish species in Spirit Lake, Iowa, USA during 1997 and 1998. Species included walleye Stizostedion vitreum, yellow perch Perca flavescens, smallmouth bass Micropterus dolomieui, largemouth bass Micropterus salmoides, black crappie Pomoxis nigromaculatus and white bassMorone chrysops. Thirty taxa were identified in diets, including 12 species of fish. We found dramatic differences in diets among species, among age-classes within species and over time. Walleye, largemouth bass, smallmouth bass and white bass were piscivorous at age 0. Black crappie began piscivory ...