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Variation in the diet and feeding morphology of polyphenic Lepomis macrochirus

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Bluegill Lepomis macrochirus showed variation in their diet and trophic morphology based on habitat. Pelagic L. macrochirus feed almost exclusively on cladocerans; littoral L. macrochirus feed on a variety of benthic invertebrates, molluscs, cladocerans and insects. Fish from the littoral habitat had wider pharyngeal jaws, which probably allowed them to crush gastropods and process benthic invertebrates.

Document Type: Research Article


Publication date: January 1, 2013

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