Genetic analyses reveal complex dynamics within a marine fish management area.

ABSTRACT: Genetic data have great potential for improving fisheries management by identifying the fundamental management units-that is, the biological populations-and their mixing. However, so far, the number of practical cases of marine fisheries management using genetics has been limited. Here, we used Atlantic cod in the Baltic Sea to demonstrate the applicability of genetics to a complex management scenario involving mixing of two genetically divergent populations. Specifically, we addressed several assumptions used in the current assessment of the two populations. Through analysis of 483 single nucleotide polymorphisms (SNPs) distributed across the Atlantic cod genome, we confirmed that a model of mechanical mixing, rather than hybridization and introgression, best explained the pattern of gene

SUBMITTER: Hemmer-Hansen J 

PROVIDER: S-EPMC6439499 | biostudies-literature | 2019 Apr

REPOSITORIES: biostudies-literature