| 来源类型 | Conference or Workshop Item (UNSPECIFIED)
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| 规范类型 | 其他
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| Fisheries-induced life history changes in herring (Clupea harengus). |
| Enberg K; Heino M
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| 发表日期 | 2007
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| 出处 | ICES CM Documents 2007 - ICES Annual Science Conference, 17-21 September 2007
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| 出版年 | 2007
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| 语种 | 英语
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| 摘要 | Fishing changes not only the population abundance of the target species, but also its population dynamics and life-history traits. A number of studies have shown that life history traits related to the timing of maturation can respond quickly to fishing mortality. Because changes in such life-history traits feed back into population dynamics and, consequently, may also affect the yield and thus profitability of a fishery, we need better understand the factors that hasten or hinder such changes. In this study we analyze how fisheries have affected the maturation process of an economically important herring (Clupea harengus) stock, the North Sea (NSH) herring. The harvest of North Sea herring targets both mature and immature individuals. Life-history theory predicts that under this kind of mortality regime fisheries can be expected to induce an adaptive decrease in the age at maturation. This kind of studies are a critical for testing theoretical predictions, and will facilitate our understanding under which conditions large life history changes can and cannot be expected. Such understanding is needed for evolutionarily enlightened management of marine biodiversity. The results will provide guidance for evolutionarily enlightened management strategies, particularly with respect to fisheries targeting mature and immature individuals differently. |
| 主题 | Evolution and Ecology (EEP)
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| 关键词 | Fisheries-induced change
Herring
Norwegian spring spawning
North Sea
Clupea harengus
Life history
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| URL | http://pure.iiasa.ac.at/id/eprint/8370/
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| 来源智库 | International Institute for Applied Systems Analysis (Austria)
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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/132247
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推荐引用方式
GB/T 7714 |
Enberg K,Heino M. Fisheries-induced life history changes in herring (Clupea harengus).. 2007.
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