| 来源类型 | Book Section
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| DOI | 10.1002/9780470015902.a0021213
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| Fisheries-induced evolution. |
| Heino M; Dieckmann U
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| 发表日期 | 2009
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| 出处 | Encyclopedia of Life Sciences. pp. art. A21213 Chichester, UK: John Wiley & Sons. DOI: 10.1002/9780470015902.a0021213 .
|
| 出版年 | 2009
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| 语种 | 英语
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| 摘要 | Modern fisheries have drastically changed the level and size dependence of mortality faced by fish populations: commercial fishing usually targets medium-sized and large individuals, which often are reltively invulnerable to natural predators. Life-history theory predicts that fish adapt to these changs through evolutionary alterations in their life histories. Experiments and models predict that such fisheries-induced evolution is potentially fast: significant evolutionary adaptations may occur over time scales of just a few generations. A growing body of observational studies of wild fish populations is supporting this theoretical prediction. So far, fisheries-induced changes in maturation schedules are best documented, but several studies are also pointing to changes in growth and reproductive investment. Although fisheries-induced evolution can render fish populations more robust agaist high exploitation levels, uncontrolled fisheries-induced evolution is likely to reduce both the quality and the quantity of fisheries yields, calling for management strategies that can mitigate such undesirable effects. |
| 主题 | Evolution and Ecology (EEP)
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| 关键词 | Contemporary evolution
Exploitation
Fishing
Life-history theory
Natural resource management
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| URL | http://pure.iiasa.ac.at/id/eprint/8991/
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| 来源智库 | International Institute for Applied Systems Analysis (Austria)
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| 引用统计 |
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| 资源类型 | 智库出版物
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| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/134079
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推荐引用方式
GB/T 7714 |
Heino M,Dieckmann U. Fisheries-induced evolution.. 2009.
|
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