Effective fisheries management instrumental in improving fish stock status
Effective fisheries management instrumental in improving fish stock status
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DOI：
10.1073/pnas.1909726116
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发表时间：
2020-01-28
影响因子：
11.1
通讯作者：
Ye, Yimin
中科院分区：
文献类型：
--
作者：
Hilborn, Ray;Amoroso, Ricardo Oscar;Ye, Yimin
海洋鱼类资源是世界粮食系统的重要组成部分，对世界上许多最贫穷的人特别重要。大多数现有的分析表明，过度捕捞正在增加，人们普遍担心世界大部分地区的鱼类资源正在减少。我们收集了经过科学评估的种群丰度和捕捞率的趋势，这些种群占报告的全球海洋鱼类捕捞量的一半。就这些种群而言，平均而言，丰度正在增加，并达到拟议的目标水平。与集中管理的区域相比，渔业管理欠发达的区域的捕捞率平均高出3倍，而评估的种群丰度则只有前者的一半。现有证据表明，没有对丰度进行评估的区域几乎没有渔业管理，种群状况很差。仍然需要更多地应用适合地区的渔业科学建议和管理工具，以在缺乏这些建议和工具的地方维持渔业。
Marine fish stocks are an important part of the world food system and are particularly important for many of the poorest people of the world. Most existing analyses suggest overfishing is increasing, and there is widespread concern that fish stocks are decreasing throughout most of the world. We assembled trends in abundance and harvest rate of stocks that are scientifically assessed, constituting half of the reported global marine fish catch. For these stocks, on average, abundance is increasing and is at proposed target levels. Compared with regions that are intensively managed, regions with less-developed fisheries management have, on average, 3-fold greater harvest rates and half the abundance as assessed stocks. Available evidence suggests that the regions without assessments of abundance have little fisheries management, and stocks are in poor shape. Increased application of area-appropriate fisheries science recommendations and management tools are still needed for sustaining fisheries in places where they are lacking.