• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>World Fisheries Congress >Managing Biodiversity of Pacific Salmon: Lessons from the Skeena River Sockeye Salmon Fishery in British Columbia
【24h】

Managing Biodiversity of Pacific Salmon: Lessons from the Skeena River Sockeye Salmon Fishery in British Columbia

机译：管理太平洋鲑鱼的生物多样性：来自不列颠哥伦比亚省Skeena河红鲑鱼渔业的课程

获取原文
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Mixed-stock harvest of wild and artificially propagated (enhanced) salmon stocks greatly complicates the conservation of salmon diversity and nowhere is this more evident than in the fisheries for sockeye salmon Oncorhynchus nerka in the Skeena River,British Columbia, Canada. The total catch and production of sockeye salmon from the Skeena River has set record high levels over the last decade after a century of intensive commercial fishing. However, both species and stock diversity decreased significantly over the course of the fishery. Species diversity has largely been restored through conservation action, but many individual populations remain at very low abundance. Fishery managers have struggled to find an acceptable trade-ofifbetween extracting economic benefits from enhanced stocks while protecting less productive wild stocks from extinction. Recent policies promise to provide explicit limits to these trade-offs based on stewardship ethics and conservation principles.
机译：野生和人工繁殖的混合收获（增强）鲑鱼股票大大复杂化了鲑鱼多样性的保护，这比在加拿大斯凯纳河的Sockeye Salmon Oncorynchus nerka渔业中更明显。从Skeena River的Sockeye Salmon的总捕获和生产在过去十年后，在一个世纪的密集商业捕鱼后，历史新高。然而，在渔业过程中，物种和股票多样性都会显着下降。物种多样性在很大程度上通过保护行动恢复，但许多人口仍然处于非常低的丰富。渔业经理队长努力寻找可接受的贸易，从而从增强的股票中提取经济效益，同时保护较少的生产性野生股免受灭绝。最近的政策承诺根据管理伦理和保护原则为这些权衡提供明确限制。

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