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Even‐Odd Year Differences in Walleye Year‐Class Strength Related to Mayfly Production

Even‐Odd Year Differences in Walleye Year‐Class Strength Related to Mayfly Production Young‐of‐the‐year walleyes Stizostedion vitreum are more abundant in even‐numbered years than in odd‐numbered years in Savanne Lake, Ontario. Differences among years were related to emergences of the burrowing mayfly Hexagenia limbata. Adult walleyes from evennumbered year classes are more abundant than those from odd‐numbered year classes. We hypothesize that pulse production of H. limbata in even‐numbered years positively affects walleye recruitment by enhancing egg production by adult walleyes and buffering young of the year against predation and cannibalism. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png North American Journal of Fisheries Management Oxford University Press

Even‐Odd Year Differences in Walleye Year‐Class Strength Related to Mayfly Production

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References (29)

Publisher
Oxford University Press
Copyright
© American Fisheries Society
ISSN
0275-5947
eISSN
1548-8675
DOI
10.1577/1548-8675(1988)008<0210:eoydiw>2.3.co;2
Publisher site
See Article on Publisher Site

Abstract

Young‐of‐the‐year walleyes Stizostedion vitreum are more abundant in even‐numbered years than in odd‐numbered years in Savanne Lake, Ontario. Differences among years were related to emergences of the burrowing mayfly Hexagenia limbata. Adult walleyes from evennumbered year classes are more abundant than those from odd‐numbered year classes. We hypothesize that pulse production of H. limbata in even‐numbered years positively affects walleye recruitment by enhancing egg production by adult walleyes and buffering young of the year against predation and cannibalism.

Journal

North American Journal of Fisheries ManagementOxford University Press

Published: May 1, 1988

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