1. Genetic population structure in Greenland halibut ( Reinhardtius hippoglossoides) and its relevance to fishery management.
- Author
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Westgaard, Jon-Ivar, Saha, Atal, Kent, Matthew, Hansen, Hanne Hellerud, Knutsen, Halvor, Hauser, Lorenz, Cadrin, Steven X., Albert, Ole Thomas, and Johansen, Torild
- Subjects
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MARINE resources , *AQUATIC resources , *GENETIC markers , *BIOMARKERS , *FISHERY management , *SINGLE nucleotide polymorphisms - Abstract
Exploited marine resources can be managed more effectively when accurate information on geographic population structure is available. Genetic markers offer a powerful tool for fisheries management, because they reveal biologically sound management units. Single nucleotide polymorphisms (SNPs) markers derived from restriction-site associated DNA sequencing (RAD-seq) were developed and used to investigate the stock structure of Greenland halibut ( Reinhardtius hippoglossoides). A total of 96 SNPs were analyzed from 384 individuals and eight locations across the Atlantic. Our results suggest a subdivision of Greenland halibut into two populations, an eastern Atlantic population and a western Atlantic population, with a proposed border across the Denmark Strait. In general, Greenland halibut display weak but significant population structure (overall FST = 0.003; p < 0.001), which can be explained by connectivity among populations owing to the migratory behavior or egg and larval drift. [ABSTRACT FROM AUTHOR]
- Published
- 2017
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