摘要 1. Migratory fish 族群s, like salmon, have dramatic

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• 類型：已發表論文
• 日期：2021-01-15

摘要

1. Migratory fish 族群s, like salmon, have dramatically declined for decades. Because of their extensive and energetically costly breeding migration, anadromous fish are sensitive to a variety of environmental stressors, in particular infrastructure building in freshwater streams that increases the energetic requirements of the breeding migration and food declines in the ocean. 2. While the effects of these stressors separately are well documented, the cumulative and interactive impacts of them are poorly understood. 3. Here, we use a bioenergetics model recently developed for fish life history to investigate the individual life history and 族群 responses to these stressors combined. 4. We find that food decline in the ocean can mitigate rather than exacerbate the negative effect of elevated m

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