| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.1111/j.1752-4571.2009.00077.x |
| Implications of fisheries-induced evolution for stock rebuilding and recovery. | |
| Enberg K; Joergensen C; Dunlop ES; Heino M; Dieckmann U | |
| 发表日期 | 2009 |
| 出处 | Evolutionary Applications 2 (3): 394-414 |
| 出版年 | 2009 |
| 语种 | 英语 |
| 摘要 | Worldwide depletion of fish stocks has led fisheries managers to become increasingly concerned about rebuilding and recovery planning. To succeed, factors affecting recovery dynamics need to be understood, including the role of fisheries-induced evolution. Here we investigate a stock's response to fishing followed by a harvest moratorium by analyzing an individual-based evolutionary model parameterized for Atlantic cod Gadus morhua from its northern range, representative of long-lived, late-maturing species. The model allows evolution of life-history processes including maturation, reproduction, and growth. It also incorporates environmental variability, phenotypic plasticity, and density-dependent feedbacks. Fisheries-induced evolution affects recovery in several ways. The first decades of recovery were dominated by demographic and density-dependent processes. Biomass rebuilding was only lightly influenced by fisheries-induced evolution, whereas other stock characteristics such as maturation age, spawning stock biomass, and recruitment were substantially affected, recovering to new demographic equilibria below their preharvest levels. This is because genetic traits took thousands of years to evolve back to preharvest levels, indicating that natural selection driving recovery of these traits is weaker than fisheries-induced selection was. Our result strengthen the case for proactive management of fisheries-induced evolution, as the restoration of genetic traits altered by fishing is slow and may even be impractical. |
| 主题 | Evolution and Ecology (EEP) ; Postdoctoral Scholars (PDS) |
| 关键词 | Eco-genetic model Fisheries-induced evolution Fisheries management Gadus morhua Maturation Probabilistic maturation reaction norm Reproductive investment Stock collapse |
| URL | http://pure.iiasa.ac.at/id/eprint/8825/ |
| 来源智库 | International Institute for Applied Systems Analysis (Austria) |
| 引用统计 | |
| 资源类型 | 智库出版物 |
| 条目标识符 | http://119.78.100.153/handle/2XGU8XDN/128908 |
| 推荐引用方式 GB/T 7714 | Enberg K,Joergensen C,Dunlop ES,et al. Implications of fisheries-induced evolution for stock rebuilding and recovery.. 2009. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 资源类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Enberg_et_al-2009-Ev（1290KB） | 智库出版物 | 限制开放 | CC BY-NC-SA | 浏览 | ||
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