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Genetic differentiation of walleye stocks in Lake St. Clair and western Lake Erie

Fish and Wildlife Technical Report 28

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Abstract

Allozyme data from six spawning sites of walleyes (Stizostedion vitreum vitreum) in western Lake Erie and two in Lake St. Clair demonstrated significant differences between allelic frequencies in fish from the two lakes. In contrast, differences were only slight between walleyes from different spawning sites within each lake. Of 21 presumptive genetic loci assayed electrophoretically, 4 were polymorphic enough to differentiate the populations. Allelic frequencies differentiating the stocks were stable between year classes, sexes, and sample years, showing that fry hatched in a particular area were returning there to spawn. These findings support other evidence for homing in Great Lakes walleyes.

Additional Publication Details

Publication type:
Report
Publication Subtype:
Federal Government Series
Title:
Genetic differentiation of walleye stocks in Lake St. Clair and western Lake Erie
Series title:
Fish and Wildlife Technical Report
Series number:
28
Year Published:
1990
Language:
English
Publisher:
U.S. Fish and Wildlife Service
Contributing office(s):
Great Lakes Science Center
Description:
19 p.
First page:
0
Last page:
19
Number of Pages:
19