Global warming and salmonid fishes: impact of rising temperature on population process through life history changes

由于外温体的大多数生理过程受温度控制，气候变暖可能会影响各种种群过程(如成熟期年龄和迁徙行为)。在这项研究中，(I)大马哈鱼在海洋生活中对热栖息地的利用，以及(Ii)气温上升对大马哈鱼生活史特征和种群动态的影响。在整个海洋生命周期中，活跃的迁徙使三文鱼达到了它们喜欢的温度。相比之下，淡水PARR的生活史特征(发烟和成熟年龄)受到温度的被动影响，这可能会放大鱼类丰度的波动。

Because most of the physiological processes of ectotherms are controlled by temperature, climate warming could affect a variety of population processes (e.g., age at maturity and migratory behavior). In the study, (i) the thermal habitat use by salmonid fishes during ocean life, and (ii) the effect of rising temperature on life-history traits and population dynamics of masu salmon were examined. Active migrations throughout their ocean lifespan allowed salmon to their preferred temperatures. By contrast, life-history traits of freshwater parr (age at smolting and maturity) were passively affected by temperature, which may magnify fluctuation in fish abundance.