| 来源类型 | Article |
| 规范类型 | 其他 |
| DOI | 10.1093/icesjms/fsp248 |
| Marine reserves and the evolutionary effects of fishing on size at maturation. | |
| Miethe T; Dytham C; Dieckmann U; Pitchford JW | |
| 发表日期 | 2010 |
| 出处 | ICES Journal of Marine Science 67 (3): 412-425 |
| 出版年 | 2010 |
| 语种 | 英语 |
| 摘要 | Size-selective fishing may induce rapid evolutionary changes in life-history traits such as size at maturation. A major concern is that these changes will reduce population biomass and detrimentally affect yield and recruitment. Although marine reserves have been proposed as a tool for fisheries managemnt, their evolutionary implications have as yet attracted little scrutiny. A simple model is used to investigate whether marine reserves can be expected to mitigate the evolutionary impacts of fishing on maturation size. The adaptive dynamics of size at maturation are analysed based on a stage-sructured population model including size-selective fishing and marine reserves with different retention rates. As has been shown before, imposing greater fishing mortality on the largest individuals promotes an evolutionary change towards smaller maturation size. In the model, protecting part of a fish stock using a marine reserve can prevent such fisheries-induced evolution, and this protection critically depends on the type and extent of movement between the reserve and the fished area. Specifically, although the frequent movement of large adults increases catches of large adult fish outside a marine reserve, it also reduces the reserves effectiveness in preventing fisheries-induced evolution. In contrast, when there is exchange between protected and fished areas through juvenile export alone, a marine reserve can effectively prevent evolution towards smaller maturation size, but does so at the expense of reducing the yield of large adult fish. Differences in the movement behaviour of successive life stages need to be considered for marine reserves, to help make fisheries more sustainable evolutionarily. |
| 主题 | Evolution and Ecology (EEP) |
| 关键词 | Connectivity Fitness Life-history evolution Metapopulation Size-structured model Spillover |
| URL | http://pure.iiasa.ac.at/id/eprint/9271/ |
| 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/129155 |
| 推荐引用方式 GB/T 7714 | Miethe T,Dytham C,Dieckmann U,et al. Marine reserves and the evolutionary effects of fishing on size at maturation.. 2010. |
| 条目包含的文件 | 条目无相关文件。 | |||||
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
