Parentage-based tagging and parentage analyses of stocked sea trout in Vistula River commercial catches.

ABSTRACT: The longest Baltic River, the Vistula, historically hosted numerous sea trout populations. However, dam construction in the twentieth century drastically reduced the spawning migration rate. Reduced natural reproduction has resulted in a population collapse and, consequentially, a substantial reduction in catches. In response, like other Baltic countries, Poland has initiated an intensive stocking program, mainly involving smolt. Initially, stocking was conducted primarily with offspring of sea trout caught during spawning migration. Currently, due to difficulties in obtaining fish, most stocking involves fish from breeding stocks. Therefore, determining the proportion of fish derived from stocking has become an important issue. Experiments based on traditional tagging did not provide suff

SUBMITTER: Was-Barcz A 

PROVIDER: S-EPMC10076402 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature