The survival of Atlantic salmon ( Salmo salar) , an increasingly rare anadromous species, has declined dramatically during its marine phase, with disproportionate impacts on the poorly understood early post‐smolt period. Logistical constraints on collecting oceanic data to inform this issue pose a formidable obstacle. To advance understanding of post‐smolt distributional ecology in the North‐east Atlantic, a comprehensive anal...

Aim We constructed an independent phylogeographical hypothesis ( IPH ) for Atlantic salmon ( Salmo salar L.) in Scotland and adjacent northern England and tested if the distribution of contemporary microsatellite variation accorded with the IPH . Location NW Europe. Methods Knowledge of post‐Last Glacial Maximum ( LGM ) landscape development and salmon biology were used to define a temporal sequence of late Quaternary ecologic...

Atlantic salmon ( Salmo salar ) is one of the best researched fishes, and its aquaculture plays a global role in the blue revolution. However, since the 1970s, tens of millions of farmed salmon have escaped into the wild. We review current knowledge of genetic interactions and identify the unanswered questions. Native salmon populations are typically genetically distinct from each other and potentially locally adapted. Farmed...

Identification of discrete and unique assemblages of individuals or populations is central to the management of exploited species. Advances in population genomics provide new opportunities for re‐evaluating existing conservation units but comparisons among approaches remain rare. We compare the utility of RAD ‐seq, a single nucleotide polymorphism ( SNP ) array and a microsatellite panel to resolve spatial structuring under a...

Atlantic salmon ( S almo salar ) is one of the most extensively studied fish species in the world due to its significance in aquaculture, fisheries and ongoing conservation efforts to protect declining populations. Yet, limited genomic resources have hampered our understanding of genetic architecture in the species and the genetic basis of adaptation to the wide range of natural and artificial environments it occupies. In this...