Genetic Recovery of Two Wild Seatrout Populations Following Long-Term Stocking With Non-Native Conspecifics.

ABSTRACT: Predicting the long-term impact of releases and introgression from non-native strains into wild populations remains an important conservation issue, particularly in fishes where stocking and aquaculture escapes have led to widespread genetic admixture between wild and cultured conspecifics. Here, we investigated the genetic response of two wild sea trout, Salmo trutta L., populations following long-term stocking programmes with non-native conspecifics. This included temporal sampling spanning 23 years and genome-wide SNP data from two neighbouring Danish rivers that from the 1970's to 1990's were heavily stocked with partially domesticated, non-local hatchery strains. To estimate wild-hatchery admixture we analysed 3656 SNPs in 195 wild-caught fish, 74 hatchery strain fish, and expanded co

SUBMITTER: Bekkevold D 

PROVIDER: S-EPMC12376961 | biostudies-literature | 2025 Sep

REPOSITORIES: biostudies-literature