The food of the pollan, Coregonus autumnalis pollan Thompson, in Lough Neagh, Northern Ireland |
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| Authors: | J P F Wilson |
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| Institution: | School of Biological and Environmental Studies, New University of Ulster, Coleraine, Northern Ireland |
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| Abstract: | Stomach contents of pollan caught monthly throughout the year were examined. Stomach fullness was significantly correlated with water temperature. Adult pollan fed on bottom fauna, mainly chironomid larvae, in October-March, chironomid pupae in April and on Daphnia spp. in May-September. Immature (0+ and 1 +) fish also ate other cladocerans and copepods. While there is no evidence for selection of any benthic prey species, adult pollan appear to be highly selective feeders on Daphnia spp. in summer. |
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