Oceanography and life history predict contrasting genetic population structure in two Antarctic fish species.

ABSTRACT: Understanding the key drivers of population connectivity in the marine environment is essential for the effective management of natural resources. Although several different approaches to evaluating connectivity have been used, they are rarely integrated quantitatively. Here, we use a 'seascape genetics' approach, by combining oceanographic modelling and microsatellite analyses, to understand the dominant influences on the population genetic structure of two Antarctic fishes with contrasting life histories, Champsocephalus gunnari and Notothenia rossii. The close accord between the model projections and empirical genetic structure demonstrated that passive dispersal during the planktonic early life stages is the dominant influence on patterns and extent of genetic structuring in both speci

SUBMITTER: Young EF 

PROVIDER: S-EPMC4430772 | biostudies-literature | 2015 Jun

REPOSITORIES: biostudies-literature