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Summer Foods of the Cyprinid Fish Semotilus atromaculatus
Author(s) -
Barber Willard E.,
Minckley W. L.
Publication year - 1971
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(1971)100<283:sfotcf>2.0.co;2
Subject(s) - caddisfly , biology , fishery , larva , fish <actinopterygii> , morning , nymph , pupa , evening , ecology , botany , physics , astronomy
Aquatic larvae and pupae, fishes, and molluscs together contributed 95% of the stomach contents of creek chubs from headwaters of the Mississippi River, Clearwater County, Minnesota, during the summer of 1965. As fish grew the changes in food items were from ephemeropteran nymphs and smaller dipterans to larger caddisfly and dipteran larvae, and then fishes. Chubs feed generally in proportion to availability of food organisms. Fishes fed most intensively during early evening and least in the morning. As summer progressed, a reduction in feeding intensity occurred.