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Maturity and fecundity of walleyes from the eastern and western basins of Lake Erie

Journal of the Fisheries Research Board of Canada

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Abstract

Of 2427 walleyes (Stizostedion vitreum vitreum (Mitchill)) examined from Lake Erie in 1964-66, no females were mature at ages below III and all were mature at age V. All male walleyes from the eastern basin were mature at age II, and those from the western basin at age III. Females from the western basin matured at a shorter length and a younger age than those from the eastern basin. Males from the western basin, on the other hand, matured at a longer length and greater age than those from the eastern basin. Egg production, which was estimated for 60 walleyes from the eastern basin and 78 from the western basin, ranged from 48,000 to 614,000. The number of eggs increased rapidly with increase in total length, but the relation between fecundity and weight was almost linear. Walleyes from the western basin were much more fecund for any given length, weight, or age than those from the eastern basin. Weight was the most accurate indicator of fecundity. The mean diameter of eggs from 32 ripe walleyes was 1.72 mm. Little relation existed between egg diameter and length or age of fish.

Additional Publication Details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Maturity and fecundity of walleyes from the eastern and western basins of Lake Erie
Series title:
Journal of the Fisheries Research Board of Canada
Volume
26
Issue:
7
Year Published:
1969
Language:
English
Contributing office(s):
Great Lakes Science Center
Description:
p. 1877-1888
Larger Work Type:
Article
Larger Work Subtype:
Journal Article
Larger Work Title:
Journal of the Fisheries Research Board of Canada
First page:
1877
Last page:
1888