Data_Sheet_1_Satellite Observations Are Needed to Understand Ocean Acidification and Multi-Stressor Impacts on Fish Stocks in a Changing Arctic Ocean.PDF

It is widely projected that under future climate scenarios the economic importance of Arctic Ocean fish stocks will increase. The Arctic Ocean is especially vulnerable to ocean acidification and already experiences low pH levels not projected to occur on a global scale until 2100. This paper outlines how ocean acidification must be considered with other potential stressors to accurately predict movement of fish stocks toward, and within, the Arctic and to inform future fish stock management strategies. First, we review the literature on ocean acidification impacts on fish, next we identify the main obstacles that currently preclude ocean acidification from Arctic fish stock projections. Finally, we provide a roadmap to describe how satellite observations can be used to address these gaps: improve knowledge, inform experimental studies, provide regional assessments of vulnerabilities, and implement appropriate management strategies. This roadmap sets out three inter-linked research priorities: (1) Establish organisms and ecosystem physiochemical baselines by increasing the coverage of Arctic physicochemical observations in both space and time; (2) Understand the variability of all stressors in space and time; (3) Map life histories and fish stocks against satellite-derived observations of stressors.

广泛预测，在未来的气候情景下，北极海洋鱼类资源的经济重要性将显著提升。北极海洋对海洋酸化的敏感性尤为突出，目前其pH值已低于预计至2100年全球范围内才会出现的水平。本文旨在探讨海洋酸化问题应与其他潜在的压力因素综合考虑，以准确预测鱼类资源在北极地区及其内部的迁移动态，并为未来的鱼类资源管理策略提供信息。首先，我们对海洋酸化对鱼类影响的相关文献进行综述；其次，我们识别出目前阻碍海洋酸化在北极鱼类资源预测中的应用的主要障碍；最后，我们提出一个路线图，描述如何利用卫星观测数据填补这些空白：增进知识、指导实验研究、进行区域脆弱性评估以及实施相应的管理策略。该路线图确立了三个相互关联的研究重点：（1）通过增加北极物理化学观测在空间和时间上的覆盖范围，建立生物和生态系统的物理化学基础水平；（2）理解所有压力因素在空间和时间上的变异性；（3）将生物生命周期和鱼类资源与卫星观测到的压力因素进行映射。