Cold-water species deepen to escape warm water temperatures

Aim. Whether marine species can respond to ocean warming by changing their depth remains controversial. While some evidence suggests that species can deepen to cope with warming climates, other studies found ecologically constrained depth distributions. Our study focuses on generalizing species depth response to warming, and elucidating whether some species display larger depth change than others. This may help in understanding the future distribution of marine species and communities. Location. The Mediterranean Sea Time period. 1985-2017 Major taxa studied. Fish, malacostracans, and cephalopods Methods. We compiled species depth records from bottom-trawl surveys encompassing 236 marine species across the steep climatic gradient of the Mediterranean Sea. This data, represents the largest assessment, to date, of the potential of species to modify their depth distribution in response to spatially-varying climate. Using environmental variables (e.g. sea surface temperature, b...研究目的：海洋物种能否通过改变栖息深度响应海洋变暖，这一议题尚存争议。部分研究证据表明，物种可向更深水域迁移以应对气候变暖，而另有研究则发现物种的深度分布受生态条件约束。本研究旨在归纳不同物种对气候变暖的深度响应规律，并阐明是否部分物种的深度变化幅度大于其他类群。该研究可为理解海洋物种及群落的未来分布格局提供科学参考。 研究区域：地中海 时间跨度：1985年—2017年 主要研究类群：鱼类、软甲纲甲壳动物（Malacostraca）以及头足类动物（Cephalopoda） 研究方法：本研究从横跨地中海气候梯度的底拖网调查（bottom-trawl surveys）数据中，收集了236种海洋物种的栖息深度记录。该数据集是迄今为止针对物种响应空间异质性气候而调整自身深度分布潜力的最大规模评估。本研究采用了海表温度等环境变量（例如海表温度、b……）开展相关分析。