Fine-scale partitioning of genomic variation among recruits in an exploited fishery: causes and consequences.

ABSTRACT: Conservation and management of exploited species depends on accurate knowledge of how genetic variation is partitioned across a fishery, especially as it relates to recruitment. Using double-digest restriction-site associated DNA sequencing, we surveyed variation in 7,382 single nucleotide polymorphisms (SNPs) in red snapper (Lutjanus campechanus) young-of-the-year (YOY) sampled at six localities and in adults sampled at two localities in the northern Gulf of Mexico. Significant genetic heterogeneity was detected between the two adult samples, separated by ~600 km, and at spatial scales less than five kilometers among samples of  YOY. Genetic differences between YOY samples and between YOY samples and adult samples were not associated with geographic distance, and a genome scan revealed no

SUBMITTER: Puritz JB 

PROVIDER: S-EPMC5080595 | biostudies-literature | 2016 Oct

REPOSITORIES: biostudies-literature