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Forecasting contributions of lake whitefish year-classes to a Lake Superior commercial fishery from estimates of yearling abundance

North American Journal of Fisheries Management

By:
, , and
DOI:10.1577/1548-8675(1993)013<0349:FCOLWY>2.3.CO;2

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Abstract

We developed a simple linear regression model to forecast year-class contributions of lake whitefish Coregonus clupeaformis to the commercial harvest in the Apostle Islands region of Lake Superior. We indexed year-class strength from catches of yearling fish in bottom trawl samples. Recruitment of each year-class was measured by its relative abundance in the fishery at age 6. The relation between recruitment to the commercial fishery and year-class strength indices was positive and significant (r 2 = 0.67, P < 0.01). The model produced reliable estimates of recruitment to the fishery within the range of the regression. Projected recruitment of the 1983–1987 year-classes to the fishery in 1989-1993 should be sufficient to sustain current levels of harvest through 1993.

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Additional publication details

Publication type:
Article
Publication Subtype:
Journal Article
Title:
Forecasting contributions of lake whitefish year-classes to a Lake Superior commercial fishery from estimates of yearling abundance
Series title:
North American Journal of Fisheries Management
DOI:
10.1577/1548-8675(1993)013<0349:FCOLWY>2.3.CO;2
Volume:
13
Issue:
2
Year Published:
1993
Language:
English
Publisher:
Taylor & Francis
Contributing office(s):
Great Lakes Science Center
Description:
4 p.
First page:
349
Last page:
352
Other Geospatial:
Lake Superior
Online Only (Y/N):
N
Additional Online Files (Y/N):
N