Impacts of climate-driven changes in fish distributions on contaminants exposure and accumulation in marine food webs

气候驱动的鱼类分布变化对海洋食物链中污染物暴露和积累的影响海洋鱼类在海洋食物链中发挥着至关重要的作用，包括作为海洋哺乳动物和海鸟等标志性顶级捕食者的食物。它们还暴露在广泛的污染物中，并可能积累这些污染物并将其转移给捕食者。该项目将调查不同鱼类之间污染物暴露的相对风险如何变化，随着鱼类物种分布跟踪我们不断变化的气候和鱼类群落的重组，这种风险将如何变化，以及这对更广泛的海洋食物网、生态系统功能和服务有何影响。在海洋宏观生态学和生态毒理学之间的一次新的合作中，该项目将涉及使用一系列计算技术对现有的大型生物和化学数据进行分析，例如荟萃分析、对现有数据的系统审查、建模和生态信息学。最初的重点将放在北海，北海的特点是人类的多重压力，包括化学污染物和快速变暖，但北海也提供重要的生态系统服务，其中许多服务是通过其鱼类群落实现的。北海也是世界上监测最充分、数据最丰富的海洋生态系统之一，国家和欧洲倡议产生的生物、化学和气候数据产品的开放程度越来越高，这使得对该项目至关重要的大数据方法变得非常及时。

Impacts of climate-driven changes in fish distributions on contaminants exposure and accumulationin marine food websMarine fish play a vital role in marine food webs, including as food to iconic top predators such asmarine mammals and seabirds. They are also exposed to a wide range of contaminants, and mayaccumulate these and transfer them to their predators. This project will investigate how the relativerisk of exposure to contaminants varies between fish species, how this risk will change as fish speciesdistributions track our changing climate and as fish communities are reorganised, and what theimplications of this are for the wider marine food web, ecosystem functions and services. In a novelcollaboration between marine macroecology and ecotoxicology, the project will involve analysis ofexisting big biological and chemical data using a range of computational techniques e.g.meta-analysis, systematic reviews of existing data, modelling, and ecoinformatics. The focus willinitially be on the North Sea, which is characterised by multiple human pressures, including chemicalcontaminants and rapid warming, but which also supplies important ecosystem services, many ofthem mediated through its fish communities. The North Sea is also among the most well-monitoredand data-rich marine ecosystems in the world, and the increasing open availability of biological,chemical, and climate data products produced by national and European initiatives make the big dataapproaches that are central to this project extremely timely.