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Winter diet of lake herring (Coregonus artedi) in western Lake Superior

Journal of Great Lakes Research

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Abstract

Lake herring (Coregonus artedi) and zooplankton samples were simultaneously collected through the ice in the Apostle Islands region of western Lake Superior to provide information on the winter feeding ecology of lake herring. Zooplankton constituted the entire diet of the 38 lake herring collected for this study. We found no evidence of piscivory, although it has been reported by anglers. Diet selectivities were calculated using a Wilcoxon signed-ranks test and showed a preference of lake herring for larger zooplankton, especially Diaptomus sicilis, whereas the smaller copepod, Cyclops bicuspidatus thomasi, and immature copepod stages were selected against. These data document that overwintering copepods are food for a broad size range of lake herring in winter.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Winter diet of lake herring (Coregonus artedi) in western Lake Superior
Series title:
Journal of Great Lakes Research
Volume
21
Issue:
3
Year Published:
1995
Language:
English
Contributing office(s):
Great Lakes Science Center
Description:
p. 395-399
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of Great Lakes Research
First page:
395
Last page:
399
Number of Pages:
4