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Food Habits of Lacustrine Salmonids in Washington State in Relation to Infections with Larvae of the Bass Tapeworm (Proteocephalus ambloplitis)
Author(s) -
Antipa Ross
Publication year - 1974
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1974)103<811:fholsi>2.0.co;2
Subject(s) - rainbow trout , biology , bass (fish) , fishery , trout , larva , zooplankton , zoology , fish <actinopterygii> , ecology
Analysis of stomach contents of rainbow trout, cutthroat trout, and coho salmon from four lakes revealed a diversity of feeding habits. Copepods were the most frequently observed food items in the stomachs of the three salmonids. Cyclopoid copepods were most abundant in rainbow trout (198/fish), and less abundant in coho salmon (150/fish) and cutthroat trout (142/fish), respectively. Between 89‐93% of the copepods found in stomach contents were Cyclops bicuspidatus, a species found to transmit bass tapeworm larvae to rainbow trout in laboratory experiments.