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A large-effect locus underlies migration timing in North American Atlantic salmon (Salmo salar).

Scientific reports - 2 Mar 2026

Beck Samantha V, Kess Tony, Nugent Cameron M, Dempson Brian, Chaput Gerald, Duffy Steve, Smith Nicole, Bentzen Paul, Pritchard Victoria L, Bradbury Ian R

Abstract excerpt

The timing of migration often aligns with predictable seasonal or environmental cues, allowing populations to maximise fitness by moving between habitats at optimal times. However, rapid environmental change is disrupting this predictability, leading to mismatches between expected and observed conditions with potential demographic consequences. Atlantic salmon are long-distance migrators that travel between...

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PMID: 41772103
DOI: 10.1038/s41598-026-42281-w
PMCID: PMC13057212

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