Behavioural physiology and fitness of anadromous migraiting fish

我的研究小组率先研究了迁徙环境的变化对野生鲑鱼能量使用、成熟和应激的影响，但很少有研究关注这种变化对健康的影响。我们将使用大型中观实验来检验几个特定的假设，这些假设涉及能量、疾病、生理应激、水温和游泳行为在个体水平上对成熟、产卵、衰老、卵丰度、孵化成功以及后代存活、生长和性能的作用。种群内部和种群之间在洄游成功和幼鲑鱼产量方面存在相当大的差异，这不能简单地用产卵场上成年鲑鱼的数量来解释。我们的工作应该考虑到成虫迁徙环境的重要性，以及成虫对环境挑战的反应，对其后代的数量、质量和生存能力的重要性。更好地了解这种代际影响对于了解气候变化如何影响野生溯河种群以及对鲑鱼及其栖息地的管理也至关重要。

My research group has pioneered investigations into the role that changing migratory environments have on energy use, maturation and stress in wild salmon, however little research has focused on the fitness consequences of such changes. We will use large mesocosm experiments to examine several specific hypotheses involving the role of energy, disease, physiological stress, water temperature, and swimming behaviours, at the individual level, on maturation, spawning, senescence, egg abundance, hatching success, and offspring survival, growth and performance. There is considerable variability within and among populations in migration success, and in production of juvenile salmon which cannot be explained by simple considerations of number of adults on spawning grounds. Our work should put into context the importance of the adult migration environment, and of adult response to environmental challenges, to the abundance, quality and survivability of their juveniles. A better understanding of such intergenerational effects is also critical for understanding how climate change is and will continue to affect wild anadromous populations, and for the management of salmonids and their habitats.