Little is known about how quickly natural populations adapt to changes in their environment and how temporal and spatial variation in selection pressures interact to shape patterns of genetic diversity. We here address these issues with a series of genome scans in four overfished populations of Atlantic cod ( G adus morhua ) studied over an 80‐year period. Screening of >1000 gene‐associated single‐nucleotide polymorphisms ( SN...

We examined polymorphism at seven microsatellite loci in 4023 brown trout ( Salmo trutta ) collected from 32 tributaries to the Limfjord, Denmark (~200 km) and from two hatcheries used for stocking. Populations differ in their estimated sizes and stocking histories. Mean individual inbreeding coefficients do not differ among locations within rivers. Relatedness varies between sites within rivers indicating varied local dynamic...

Levels of variation at six VNTR (variable number of tandem repeats) loci, one minisatellite and five microsatellite loci, isolated from tri‐ and tetranucleotide enriched DNA libraries for northern pike were generally low in two Danish populations (1–4 alleles; expected heterozygosity 0–0·57), though one highly variable microsatellite (13 alleles; expected heterozygosity 0·79) was identified. In combination with previously publ...