Metabolic drivers of growth and survival in salmonids

鲑鱼生长和生存的代谢驱动因素

• 批准号: 2748891
• 金额: --
• 依托单位: University of Essex
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2022
• 资助国家: 英国
• 起止时间: 2022 至 无数据
• 项目状态: 未结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-2748891
• 关键词: Metabolic; drivers; growth; survival; salmonids

This project will investigate the role of environment, physiology, and behaviour in determining life history choices in salmon and trout. Individual fish will be tagged using passive integrated transponders, and tracked throughout key stages of their life-cycle using established tracking stations on rivers in England, Scotland, Ireland, France, Norway, Iceland. Juvenile metabolic rate will be measured for each fish using field respirometry. Growth rate will be estimated by image analysis of annuli from fish scales. Short- and long-term diets will be quantified through microscopy of stomach contents and stable isotope analysis. Resource availability will be characterised through taxonomic identification and biomass estimates of macroinvertebrates and algae in each river.

该项目将研究环境、生理和行为在决定鲑鱼和鳟鱼的生活史选择中的作用。将使用无源集成转发器对每条鱼进行标记，并使用英格兰、苏格兰、爱尔兰、法国、挪威、冰岛河流上已建立的跟踪站对其生命周期的整个关键阶段进行跟踪。将使用现场呼吸测量法测量每条鱼的幼鱼代谢率。将通过对鱼鳞环的图像分析来估计生长率。短期和长期饮食将通过胃内容物显微镜检查和稳定同位素分析进行​​量化。资源可用性将通过每条河流中大型无脊椎动物和藻类的分类识别和生物量估计来表征。