Shark mortality cannot be assessed by fishery overlap alone.
Shark mortality cannot be assessed by fishery overlap alone.
复制标题
鲨鱼死亡率不能仅通过渔业重叠来评估。
DOI：
10.1038/s41586-021-03396-4
复制
发表时间：
2021
期刊：
影响因子：
64.8
通讯作者：
Murua H
中科院分区：
文献类型：
--
作者：
Murua H
全世界许多鲨鱼物种都容易因捕捞而受到过度捕捞。Queiroz等人仅利用卫星跟踪的23种鲨鱼物种的空间利用与使用自动识别系统跟踪的中上层延绳钓渔业的捕捞分布之间的横向空间重叠，1得出结论认为，当出现大量横向重叠时，鲨鱼面临高风险。这种估计捕捞敏感性的方法，加上有限的基于标签的鲨鱼分布估计捕捞暴露指数（FEI）热点，严重限制了他们的研究结果，因此，结论。我们对作者提出的几个假设提出质疑，并认为水平重叠本身是一个不可靠的敏感性指标，因为其他因素对捕获风险有很大的影响，如https：//doi所示。电话：+86-021 -03396-4
Many shark species worldwide are vulnerable to overexploitation due to fishing. Using only the horizontal spatial overlap between the space use of 23 satellite-tracked shark species and the fishing distribution of pelagic longline fisheries tracked using an automatic identification system, Queiroz et al. 1 concluded that sharks are at high risk when substantial horizontal overlap occurs. This approach to estimate fishing susceptibility, coupled with limited tag-based shark distributions to estimate fishing exposure index (FEI) hotspots, severely limits their findings and, therefore, conclusions. We challenge several assumptions made by the authors and argue that horizontal overlap alone is an unreliable indicator of susceptibility because other factors contribute considerably to catch risk, as shown https://doi. org/10.1038/s41586-021-03396-4