• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Marine policy >Implementing ecosystem considerations in forage fisheries: San Francisco Bay herring case study
【24h】

Implementing ecosystem considerations in forage fisheries: San Francisco Bay herring case study

机译：在牧草渔业中实施生态系统考虑因素：旧金山湾鲱鱼案例研究

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

Ecosystem based fisheries management is a priority nationally and beyond, yet lack of robust approaches has hampered its implementation. Even though forage fishes are critically important in marine ecosystems, few examples of applied ecosystem-based information exist. We created a multi-pronged approach to ecosystem considerations in fisheries management and applied it to the small San Francisco Bay Pacific herring Clupea pallasii fishery as a case history for use in other forage fisheries. The first step of our work used environmental parameters and recruitment indices to predict stock status (Sydeman et al., 2018) for use in setting fishing quotas. The second step, herein, was development of a qualitative predator indicator to inform quota setting, which consisted of (1) the status of alternative forage species in the ecosystem, (2) predator population "health" and mortality events. This indicator, with "stoplight" management recommendations, is framed in relation to herring population cycles and climatic influences on population dynamics, and can inform potential predator stressors and predation levels on herring. We present a method to apply these metrics to fishing quotas and adjustments, geared toward the annual management cycle and leveraging existing ecosystem status reports. The resulting indicator matrix is flexible to incorporating future environmental and ecosystem change; indeed future research on trophic interactions and climate effects on the herring-based ecosystem is warranted.
机译：基于生态系统的渔业管理是全国及以后的优先事项，但缺乏强劲的方法阻碍了其实施。尽管饲料鱼在海洋生态系统中非常重要，但很少存在基于应用的基于生态系统的信息。我们在渔业管理中创建了一种多管化的生态系统考虑方法，并将其应用于小型旧金山湾太平洋鲱鱼Clupea Pallasii渔业作为其他牧草渔业的案例历史。我们工作的第一步使用了环境参数和招聘指标来预测库存状态（Sydeman等，2018），用于设置钓鱼配额。这里的第二步是开发定性捕食者指标，以通知配额设置，该标准设置包括（1）生态系统中的替代饲料种类的状态，（2）捕食者群体“健康”和死亡率。该指标与“遏制”管理建议有关涉及鲱鱼种群周期和对人口动态的气候影响，并可以向潜在的捕食者压力源和鲱鱼的捕食水平。我们提出了一种将这些指标应用于捕捞配额和调整的方法，旨在为年度管理周期提供，并利用现有的生态系统状态报告。由此产生的指示矩阵纳入未来的环境和生态系统变化;实际上，有必要对未来的营养互动和对基于鲱鱼生态系统的气候影响的研究。

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