Estimation of Mortality Rates in Fish Populations
作者:
J.E. Paloheimo,
期刊:
Transactions of the American Fisheries Society
(Taylor Available online 1980)
卷期:
Volume 109,
issue 4
页码: 378-386
ISSN:0002-8487
年代: 1980
DOI:10.1577/1548-8659(1980)109<378:EOMRIF>2.0.CO;2
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The natural log of catch per unit of effort (CPUE) calculated for successive fish ages during the lifetime of a cohort, is related to the size of the cohort and to the fishing and natural mortality rates. After a simple linearization procedure, regressions of logeCPUE against effort and age can give estimates of natural mortality rate, catchability coefficient, and size of the cohort. The method is applied to Lake Opeongo trout data.
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