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首页> 美国卫生研究院文献>PLoS Clinical Trials >Fisheries governance in the face of climate change: Assessment of policy reform implications for Mexican fisheries
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Fisheries governance in the face of climate change: Assessment of policy reform implications for Mexican fisheries

机译：面对气候变化的渔业治理：政策改革对墨西哥渔业的影响评估

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Climate change is driving shifts in the abundance and distribution of marine fish and invertebrates and is having direct and indirect impacts on seafood catches and fishing communities, exacerbating the already negative effects of unsustainably high fishing pressure that exist for some stocks. Although the majority of fisheries in the world are managed at the national or local scale, most existing approaches to assessing climate impacts on fisheries have been developed on a global scale. It is often difficult to translate from the global to regional and local settings because of limited relevant data. To address the need for fisheries management entities to identify those fisheries with the greatest potential for climate change impacts, we present an approach for estimating expected climate change-driven impacts on the productivity and spatial range of fisheries at the regional scale in a data-poor context. We use a set of representative Mexican fisheries as test cases. To assess the implications of climate impacts, we compare biomass, harvest, and profit outcomes from a bioeconomic model under contrasting management policies and with and without climate change. Overall results show that climate change is estimated to negatively affect nearly every fishery in our study. However, the results indicate that overfishing is a greater threat than climate change for these fisheries, hence fixing current management challenges has a greater upside than the projected future costs of moderate levels of climate change. Additionally, this study provides meaningful first approximations of potential effects of both climate change and management reform in Mexican fisheries. Using the climate impact estimations and model outputs, we identify high priority stocks, fleets, and regions for policy reform in Mexico in the face of climate change. This approach can be applied in other data-poor circumstances to focus future research and policy reform efforts on stocks now subject to additional stress due to climate change. Considering their growing relevance as a critical source of protein and micronutrients to nourish our growing population, it is urgent for regions to develop sound fishery management policies in the short-term as they are the most important intervention to mitigate the adverse effects of climate change on marine fisheries.
机译：气候变化正在推动海水鱼和无脊椎动物的丰度和分布发生变化，并直接和间接影响海产品捕捞量和捕捞社区，加剧了某些种群不可持续的高捕捞压力已经产生的负面影响。尽管世界上大多数渔业都是在国家或地方一级进行管理的，但大多数现有的评估气候对渔业影响的方法都是在全球范围内开发的。由于相关数据有限，通常很难将其从全球环境转换为区域和本地环境。为了满足渔业管理实体确定最有可能受到气候变化影响的渔业的需求，我们提出了一种方法，用于在数据匮乏的情况下估计气候变化驱动的预期对区域规模的渔业生产力和空间范围的影响上下文。我们使用一组具有代表性的墨西哥渔业作为测试案例。为了评估气候影响的影响，我们在有和没有气候变化的情况下，在对比管理政策的情况下，比较了生物经济模型的生物量，收获和利润结果。总体结果表明，在我们的研究中，估计气候变化几乎会对每条渔业造成负面影响。但是，结果表明，对这些渔业而言，过度捕捞比气候变化所面临的威胁更大，因此，解决当前管理方面的挑战比气候变化适度的预期未来成本具有更大的上升空间。此外，这项研究为墨西哥渔业中气候变化和管理改革的潜在影响提供了有意义的第一近似值。使用气候影响估算和模型输出，我们确定了面对气候变化时墨西哥政策改革的高优先级储备，车队和区域。这种方法可以在其他数据匮乏的情况下应用，以使未来的研究和政策改革工作的重点放在目前由于气候变化而承受额外压力的股票上。考虑到它们日益增长的相关性是养育我们不断增长的人口的重要蛋白质和微量营养素的来源，区域迫切需要在短期内制定合理的渔业管理政策，因为它们是减轻气候变化对气候变化不利影响的最重要干预措施。海洋渔业。

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