Behavioural physiology and fitness of anadromous migraiting fish

溯河产卵洄游鱼类的行为生理学和适应性

• 批准号: 170064-2010
• 负责人: Hinch, Scott
• 金额: $ 2.91万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=522741
• 关键词: Behavioural; physiology; fitness; anadromous; migraiting

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.

我的研究小组率先研究了不断变化的迁徙环境对野生三文鱼的能量消耗、成熟和压力的影响，但很少有研究关注这些变化对健康的影响。我们将使用大型中观实验来检验几个具体的假设，涉及能量、疾病、生理压力、水温和游泳行为在个体水平上对成熟、产卵、衰老、卵丰富、孵化成功以及后代存活、生长和表现的作用。种群内和种群之间在迁徙成功率和幼鲑鱼产量方面存在相当大的差异，这不能用产卵地成鱼数量的简单考虑来解释。我们的工作应该考虑到成人移徙环境的重要性，以及成年人对环境挑战的反应的重要性，以及其青少年的丰富性、质量和生存能力。更好地了解这种代际影响对于了解气候变化正在并将如何继续影响野生顺水栖动物种群以及管理鲑鱼及其栖息地也是至关重要的。