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Fecundity of the bloater (Coregonus hoyi) in Lake Michigan

Transactions of the American Fisheries Society

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Abstract

Using ovaries sampled seasonally from Lake Michigan bloaters in 1968-1969, we determined that one complement or modal group of eggs is produced each year and spawned mainly during January, February, and March. Fecundities estimated for 65 fish taken in October ranged from 3,230 eggs in one medium-size bloater (241 mm long) to 18,768 in the longest (305 mm). We regressed these estimates on lengths and weights of the parental fish to provide a quantitative basis for later evaluating long-term changes in reproductive potential. The resulting rectilinear regression on weight accounted for 75% of the total variation in fecundity.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Fecundity of the bloater (Coregonus hoyi) in Lake Michigan
Series title:
Transactions of the American Fisheries Society
Volume
107
Issue:
6
Year Published:
1978
Language:
English
Contributing office(s):
Great Lakes Science Center
Description:
p. 785-789
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Transactions of the American Fisheries Society
First page:
785
Last page:
789