Comparing adaptive dynamics and optimization models for predicting energy allocation in a harvested species

Department of Fisheries and Marine Biology, University of Bergen, Bergen, Norway

Christian Jørgensen

Christian Jørgensen

Any substantial fishery will affect stock size and thus density dependence. However, since fisheries often selectively target specific subsets of the harvested population, they may also induce selection pressures that may cause changes in life-history parameters. In the Northeast Arctic cod stock, human fisheries during the last seventy years have led to declining stock size, smaller average size, and a decrease in age and size at maturity. The present project will apply a detailed description of energy allocation in cod within an adaptive dynamics model in an attempt to understand and assess the evolutionary consequences of the ongoing fishery.

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Last edited: 09 May 2016

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