Hydropower-induced selection of behavioural traits in Atlantic salmon (Salmo salar).

ABSTRACT: Renewable energy projects such as hydropower facilities contribute towards meeting the world`s growing energy demands and urgent need for mitigating climate change. However, such infrastructure has the potential to substantially alter the environment which, in turn, can induce new challenges related to for instance fish migration conditions. As a consequence, local adaptations related to pre-development migration conditions may be affected for influenced populations. To explore selection regimes operating at a river hydropower plant, we monitored Atlantic salmon smolt individuals during their seaward migration. When passing the hydropower plant, the smolts chose between a surface fish passage or a submerged turbine intake. Smolts were scored for behavioural type (basal locomotor activity,

SUBMITTER: Haraldstad T 

PROVIDER: S-EPMC8360942 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature