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Relationship between the Size of Several Walleye Year Classes and the Percent Harvested over the Life of Each Cohort in Escanaba Lake, Wisconsin
Author(s) -
Serns Steven L.
Publication year - 1987
Publication title -
north american journal of fisheries management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 72
eISSN - 1548-8675
pISSN - 0275-5947
DOI - 10.1577/1548-8659(1987)7<305:rbtsos>2.0.co;2
Subject(s) - stizostedion , census , citation , cohort , demography , library science , fishery , history , statistics , sociology , fish <actinopterygii> , computer science , biology , mathematics , population
Catch‐at‐age data for the 1958‐1974 year classes of walleyes Stizostedion vitreum vitreum were obtained through a complete creel census at Escanaba Lake, Wisconsin. These data, in combination with mark‐re‐capture estimates of fall young of year from the same cohorts, allowed for the determination of the percentage of fall young of year harvested over the life of the cohort. Percent of fall fingerlings harvested averaged 25.9 and ranged from 6.6 to 75.3. Percent of fall fingerlings harvested over the life of the cohort was inversely related to the number of fall fingerlings.