Premium
Migration, Food Habits, and Predation on Yearling Coho Salmon in a Lake Michigan Tributary and Bay
Author(s) -
Peck James W.
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<10:mfhapo>2.0.co;2
Subject(s) - bay , tributary , predation , oncorhynchus , fishery , biology , ecology , fish <actinopterygii> , geography , cartography , archaeology
Migration of newly planted yearling coho salmon (Oncorhynchus kisutch) out of a Lake Michigan tributary and through the connecting bay was monitored with trap nets and pound nets in April‐June 1968 and 1969. Concurrently, food habits of coho and their potential piscine predators were examined. Yearling coho migrated out of the Whitefish River within 2 wk and through northern Little Bay de Noc within 4 wk. They fed primarily on insects and crustaceans in both river and bay. Coho were eaten by only 2 of 221 predatory fishes examined. Thus, yearling coho did not prey upon or compete significantly with native game fishes for food, nor were they utilized as food extensively by resident fishes.