Determination of population structure and stock composition of chum salmon (Oncorhynchus keta) in Russia determined with microsatellites

Beacham, Terry D. and Varnavskaya, Nataly V. and Le, Khai D. and Wetklo, Michael H. (2008) Determination of population structure and stock composition of chum salmon (Oncorhynchus keta) in Russia determined with microsatellites. Fishery Bulletin, 106(3), pp. 245-256.

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Abstract

Variation at 14 microsatellite loci was examined in 34 chum salmon (Oncorhynchus keta) populations from Russia and evaluated for its use in the determination of population structure and stock composition in simulated mixed-stock fishery samples. The genetic differentiation index (Fst) over all populations and loci was 0.017, and individual locus values ranged from 0.003 to 0.054. Regional population structure was observed, and populations from Primorye, Sakhalin Island, and northeast Russia were the most distinct. Microsatellite variation provided evidence of a more fine-scale population structure than those that had previously been demonstrated with other genetic-based markers. Analysis of simulated mixed-stock samples indicated that accurate and precise regional estimates of stock composition were produced when the microsatellites were used to estimate stock compositions. Microsatellites can be used to determine stock composition in geographically separate Russian coastal chum salmon fisheries and provide a greater resolution of stock composition and population structure than that previously provided with other techniques.

Item Type: Article
Title: Determination of population structure and stock composition of chum salmon (Oncorhynchus keta) in Russia determined with microsatellites
Personal Creator/Author:
CreatorsEmail
Beacham, Terry D.
Varnavskaya, Nataly V.
Le, Khai D.
Wetklo, Michael H.
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 106
Number: 3
Page Range: pp. 245-256
Date: 2008
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Item ID: 8830
Depositing User: Patti M. Marraro
Date Deposited: 12 Jun 2012 17:54
Last Modified: 12 Jun 2012 17:54
URI: http://aquaticcommons.org/id/eprint/8830

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