Metabolic drivers of growth and survival in salmonids

这个项目将调查的作用，环境，生理和行为在决定生活史的选择在鲑鱼和鳟鱼。将使用无源集成转发器对个体鱼类进行标记，并使用英格兰、苏格兰、爱尔兰、法国、挪威和冰岛河流上建立的跟踪站对其生命周期的各个关键阶段进行跟踪。将使用现场呼吸测定法测量每条鱼的幼鱼代谢率。通过鱼鳞环的图像分析估计生长速率。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定量。将通过每条河流中大型无脊椎动物和藻类的分类鉴定和生物量估计来表征资源的可用性。

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.