Predation by ruffe (Gymnocephalus cernuus) on fish eggs in Lake Superior

Journal of Great Lakes Research


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Ruffe (Gymnocephalus cernuus) were introduced to North America in the Duluth, Minnesota--Superior, Wisconsin harbor, which is the westernmost point on the Laurentian Great Lakes. The species proliferated in the harbor and became the subject of research which has gradually revealed certain characteristics of the biology and population growth of the ruffe. In this study, ruffe in Southwestern Lake Superior were found to have eaten benthic organisms and eggs of lake herring (Coregonus artedii). Overwinter predation by ruffe on eggs of lake herring and of other fall spawning Great Lakes fishes might pose a substantial new source of overwinter mortality.
Publication type Article
Publication Subtype Journal Article
Title Predation by ruffe (Gymnocephalus cernuus) on fish eggs in Lake Superior
Series title Journal of Great Lakes Research
Volume 24
Issue 2
Year Published 1998
Language English
Contributing office(s) Great Lakes Science Center
Description p. 304-308
Larger Work Type Article
Larger Work Subtype Journal Article
Larger Work Title Journal of Great Lakes Research
First page 304
Last page 308
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