Aim One of the major consequences of climate change in the rapidly warming Arctic regions is the decrease in sea‐ice extent. This is accompanied by changes in marine chemistry and nutrient dynamics, which in turn drive significant shifts in ecosystems, altering their components and reshaping the interactions between them. Research on genetic differences and grasping the relevance of local adaptation is essential for deepening...

Marine hard-bottom communities are undergoing severe change under the influence of multiple drivers, notably climate change, extraction of natural resources, pollution and eutrophication, habitat degradation, and invasive species. Monitoring marine biodiversity in such habitats is, however, challenging as it typically involves expensive, non-standardized, and often destructive sampling methods that limit its scalability. Diffe...

Sea trout, S almo trutta L ., populations in the Slupia River basin have been affected by mass stocking with smolts and fry. This work is focused on a small‐scale differentiation in sea trout populations from one basin with a strong emphasis on the relationship between wild and hatchery origin fish. A total of 216 sea trout were genotyped at 10 microsatellite loci. Global F ST obtained by amova was low at 0.0165. Pairwise F ST...