Life history correlates of responses to fisheries exploitation
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| Authors: | Jennings, S; Reynolds, JD; Mills, SC |
| Year: | 1998 |
| Journal: | Proceedings of the Royal Society of London Series B-Biological Sciences 265: 333-339 |
| Title: | Life history correlates of responses to fisheries exploitation |
| Abstract: | We use an approach based on phylogenetic comparisons to identify life history correlates of abundance trends in 18 intensively exploited fish stocks from the north-east Atlantic. After accounting for differences in fishing mortality, we show that those fishes that have decreased in abundance compared with their nearest relatives mature later, attain a larger maximum size, and exhibit significantly lower potential rates of population increase. Such trends were not evident in a more traditional cross-species analysis. This is the first phylogenetically independent evidence to link life histories with abundance trends, and provides a quantitative basis for assessing vulnerability of fish populations to exploitation. Our approach can be applied to the conservation and management of other exploited taxa. |
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