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Quantifying the effects of individual and environmental variability in fish recruitment
Author(s) -
PITCHFORD JONATHAN W.,
JAMES ALEX,
BRINDLEY JOHN
Publication year - 2005
Publication title -
fisheries oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.016
H-Index - 80
eISSN - 1365-2419
pISSN - 1054-6006
DOI - 10.1111/j.1365-2419.2004.00299.x
Subject(s) - fish <actinopterygii> , variance (accounting) , environmental science , fishery , environmental change , population , population growth , biology , oceanography , statistics , ecology , mathematics , demography , climate change , geology , economics , accounting , sociology
The effect of environmental variability on fish recruitment is analysed using simple linear growth models. It is shown that variance in an individual's environment significantly increases the probability of recruitment. It is also argued that environmental variance should lead to differences in growth rates observed in recruited fish, and in the mean observed growth rate of the overall population. These conclusions are discussed with reference to recent observations from field studies.