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Schistocephalus infestation improves prey‐size selection by three‐spined sticklebacks, Gasterosteus aculeatus
Author(s) -
Ranta E.
Publication year - 1995
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1995.tb05954.x
Subject(s) - gasterosteus , biology , predation , three spined stickleback , foraging , infestation , fish <actinopterygii> , stickleback , zoology , selection (genetic algorithm) , ecology , fishery , agronomy , artificial intelligence , computer science
Schistocephalus ‐infected sticklebacks ate slightly less but fed more selectively on larger prey than non‐infested fish. It follows that, in the short‐term, the net energy gain in foraging is larger for infested fish. This matches the expectation that infested sticklebacks compensate energy losses due to Schistocephalus.