...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Reviews in Fish Biology and Fisheries >Adaptive behaviour of fishers to external perturbations: simulation of the Tasmanian rock lobster fishery
【24h】

Adaptive behaviour of fishers to external perturbations: simulation of the Tasmanian rock lobster fishery

机译：渔民对外部扰动的适应行为：塔斯马尼亚岩龙虾渔业的模拟

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The rock lobster, Jasus edwardsii, lies on a global "hotspot" for climate change in the southeastern Australian state of Tasmania. The short-term effects of climate change are predicted to lead to an increasing exploitable biomass in the south and declining biomass in the north of the state. The future of the fishery is highly uncertain due to climate change, but also due to insecurities linked to the market conditions. The market for Tasmanian rock lobster is driven by the demand of a single market, China, which absorbs 75 % of the catch. This study examines how fishers can adapt to external perturbations that affect the social and economic viability of the fleet and the ecological dynamics of the stock. Three fleet dynamic models of increasing complexity are used to investigate the effects of climate change and lobster price changes on the fishery. There could be local depletion leading to negative short-term profit for the fleet if it is static and the proportion of the total catch taken in each region of the fishery does not respond to climate-induced-changes. Better outcomes would occur if the fleet adapts dynamically to environmental conditions, and fishing effort follows stock abundance, which would counter-act the short-term effects of climate change. Only a model with explicit representation of economic drivers can fully capture the local economic and social impacts of large scale global perturbations.
机译：龙虾Jasus edwardsii位于澳大利亚东南部塔斯马尼亚州气候变化的全球“热点”上。预计气候变化的短期影响将导致该州南部可利用的生物量增加，而该州北部的生物量下降。由于气候变化以及与市场状况有关的不安全因素，渔业的未来高度不确定。塔斯马尼亚龙虾市场受单一市场中国的需求驱动，中国吸收了75％的捕获量。这项研究探讨了渔民如何适应外部干扰，这些干扰会影响船队的社会和经济生存能力以及种群的生态动态。使用三个复杂程度不断增加的船队动态模型来研究气候变化和龙虾价格变化对渔业的影响。如果船队是静态的，并且在渔业的每个区域所捕捞的总产量中的比例对气候变化没有反应，则可能存在局部枯竭，导致船队的短期利润为负。如果船队动态适应环境条件，捕捞活动将跟随种群的充裕，结果将有更好的结果，这将抵消气候变化的短期影响。只有明确表示经济驱动因素的模型才能充分反映大规模全球动荡对当地经济和社会的影响。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号