Schulz, K.L., and P.M. Yurista, 1995. Diet Composition from Allozyme Analysis in the Predatory Cladoceran Bythotrephes cederstroemi. University of Michigan

Diet Composition from Allozyme Analysis in the Predatory Cladoceran Bythotrephes cederstroemi

Abstract
Investigating diet composition with visual analyses of gut contents requires that the predator consume recognizable hard parts. Soft tissue remains of prey in the gut of the predatory cladoceran Bythotrephes cederstroemi were identified with cellulose acetate electrophoresis. We found that B. cederstroemi collected from an offshore sta tion in Lake Michigan had fed on cyclopoid and calanoid copepods and Daphnia galeata. Many individuals had eat en more than one prey type. Allozyme electrophoresis is a relatively simple way to analyze trophic relationships in freshwater systems, especially when traditional analyses are not feasible.

Entire Paper
Contact: Peder M. Yurista, Dept. of Biology, University of Michigan, Ann Arbor, MI 48109
Keywords: Bythotrephes, Basic_biology, Ecological_interactions, Environmental_interactions
Product Type: Research, Impact
User Type: General