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首页> 外文期刊>ICES Journal of Marine Science >Disentangling the role of sea lice on the marine survival of Atlantic salmon
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Disentangling the role of sea lice on the marine survival of Atlantic salmon

机译：阐明海虱对大西洋鲑鱼海洋生存的作用

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摘要

The effects of sea lice on the marine survival of wild salmonids are widely debated. In Norway this debate has reached a crescendo as the Norwegian government has recently ratified a management system where the growth in the salmonid aquaculture industry will be conditional on regional estimated impact of salmon lice on wild fish. Sea lice have thus become the most prominent obstacle to the stated political aim of quintupling aquaculture production in Norway by 2050. Scientific documentation that salmon lice impact the marine survival of salmon is robust. However, it is also evident that marine survival of salmon is strongly impacted by other factors, and that the effect of salmon lice is most likely an integral part of these other mortality factors. In this paper, our goal is to discuss and give advice on how managers and policy makers should handle this complexity, and to identify the greatest challenges in using scientific results to construct robust management rules. Inadequate extrapolation from the scale of known effects to the scale of management implementation may initially give a false impression of scientific certainty, but will eventually fuel upsetting disagreements among stakeholders as they gradually uncover the shaky foundation of the implemented policy. Thus, using a single model and parameter to determine management advice is not warranted, as no single data point reflects the natural complexity of nature. Furthermore, robust management rules should be based on unambiguous definitions of key concepts. Finally, despite the scientific consensus that salmon lice are a risk to salmon, studies on wild populations in situ that accurately quantify the impact of salmon lice are still urgently needed. We give advice on how this can be accomplished.
机译：海虱对野生鲑鱼的海洋生存的影响引起了广泛的争论。在挪威，由于挪威政府最近批准了一种管理体系，鲑鱼养殖业的增长将取决于鲑鱼虱子对野生鱼类的区域影响，因此这场辩论已达到顶峰。因此，海虱已成为2050年挪威将水产养殖产量提高五倍的既定政治目标的最主要障碍。科学文献表明，鲑鱼虱影响鲑鱼的海洋生存。但是，也很明显，鲑鱼的海洋生存受到其他因素的强烈影响，鲑鱼虱子的影响很可能是这些其他死亡率因素的组成部分。在本文中，我们的目标是就管理人员和决策者应如何应对这种复杂性进行讨论并提供建议，并确定在利用科学成果构建健全的管理规则方面面临的最大挑战。从已知效应的规模到管理实施的规模的推断不足，一开始可能会给人对科学确定性的错误印象，但最终会加剧利益相关者之间的分歧，因为他们逐渐发现实施政策的基础不稳。因此，不保证使用单个模型和参数来确定管理建议，因为没有单个数据点可以反映自然的自然复杂性。此外，稳健的管理规则应基于关键概念的明确定义。最后，尽管在科学上已达成共识，鲑鱼虱子是鲑鱼的危险，但仍迫切需要对野生种群进行原位研究以准确量化鲑鱼虱子的影响。我们提供有关如何实现此目标的建议。

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