PROSPER 101105250 - MSCA Post Doc European Fellowship 2022 - (Phenotypic diversity and resilience to environmental change in freshwater fish)

PROSPER 101105250 - MSCA 博士后欧洲奖学金 2022 -（淡水鱼的表型多样性和环境变化恢复能力）

• 批准号: EP/Y017552/1
• 负责人: Robert Britton
• 金额: $ 25.55万
• 依托单位: Bournemouth University
• 依托单位国家: 英国
• 项目类别: Fellowship
• 财政年份: 2023
• 资助国家: 英国
• 起止时间: 2023 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FY017552%2F1
• 关键词: PROSPER; 101105250; MSCA; Post; Doc

Europe's rivers are highly fragmented by human constructed barriers that block the movement of fish, with this fragmentation driving substantial declines in freshwater fish diversity and abundance. The EU Biodiversity Strategy aims to remove riverine barriers wherever possible so that 25000 km more river will be free-flowing in Europe by 2030. However, barrier removal is only occasionally feasible and so engineered fish passes provide alternative re-connection tools. The passes provide an easier route for fish to use to bypass the barrier. Although these fish passes are frequently on rivers with a diverse fish assemblage, they tend to be constructed to primarily facilitate the passage of diadromous fishes, especially anadromous salmonid fishes, despite most fish species being impacted by the fragmentation. This inter-specific selectivity of fish passes is potentially compounded by their intra-specific selectivity, where only specific phenotype groupings are able to use the pass successfully. Thus, while fish passes are used frequently to provide river reconnection in Europe, the extent to which they impose new selection pressures on fish communities - and the associated consequences - remain high uncertain. Our project overcomes this high uncertainty in fish passage selectivity by bringing together an outstanding European researcher with potential to develop into a global science leader with a research group with strong competencies in fish tracking technologies and fish behaviour assessment. Together, we generate new knowledge on the performance of fish populations and communities using fish passes on the lower River Severn in western Britain through application of the latest biotelemetry methods. We use these data to then build novel agent based models that predict the ecological consequences of barriers and fish passes. These results provide river managers with the knowledge to better resolve river fragmentation that works for all species.

欧洲的河流被人类建设的障碍物所破坏，这些障碍阻碍了鱼的运动，这种分散的淡水鱼类多样性和丰富性却大大下降。欧盟生物多样性策略旨在尽可能清除河流障碍，以便到2030年到2030年，欧洲将有25000公里的河流自由流动。但是，遇到障碍物的清除仅是可行的，因此工程的鱼类通行证提供了替代的重新连接工具。这些通行证为鱼提供了更容易的路线，用于绕过屏障。尽管这些鱼经常在河流上具有多样化的鱼类组合，但它们倾向于主要促进临床鱼类的传播，尤其是动脉粥样硬化的鲑鱼鱼，尽管大多数鱼类都受到碎片化的影响。这种针对鱼类通行的特异性选择性可能与它们的特异性选择性相结合，其中只有特定的表型组才能成功使用该通行证。因此，尽管经常使用鱼类通行证来提供欧洲的河流重新连接，但它们对鱼类群落施加新的选择压力的程度以及相关的后果仍然不确定。我们的项目通过将一名杰出的欧洲研究人员汇集在一起​​，可以通过具有强大能力在鱼类跟踪技术和鱼类行为评估方面具有强大能力的研究小组来克服鱼类通道选择性的高度不确定性。我们共同通过采用最新的生物占主导地方法，共同利用在英国西部的下河塞尔恩（Lower River Severn）对鱼类种群和社区的表现产生新知识。我们使用这些数据来构建基于新型代理的模型，以预测屏障和鱼类通行证的生态后果。这些结果为河流经理提供了知识，以更好地解决适合所有物种的河流破碎化。