Population structure of pink salmon (Oncorhynchus gorbuscha) in British Columbia and Washington, determined with microsatellites

Beacham, Terry D. and McIntosh, Brenda and MacConnachie, Cathy and Spilsted, Brian and White, Bruce A. (2012) Population structure of pink salmon (Oncorhynchus gorbuscha) in British Columbia and Washington, determined with microsatellites. Fishery Bulletin, 110(2), pp. 242-256.

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Abstract

Population structure of pink salmon (Oncorhynchus gorbuscha) from British Columbia and Washington was examined with a survey of microsatellite variation to describe the distribution of genetic variation. Variation at 16 microsatellite loci was surveyed for approximately 46,500 pink salmon sampled from 146 locations in the odd-year broodline and from 116 locations in the even-year broodline. An index of genetic differentiation, FST, over all populations and loci in the odd-year broodline was 0.005, with individual locus values ranging from 0.002 to 0.025. Population differentiation was less in the even-year broodline, with a FST value of 0.002 over all loci, and with individual locus values ranging from 0.001 to 0.005. Greater genetic diversity was observed in the odd-year broodline. Differentiation in pink salmon allele frequencies between broodlines was approximately 5.5 times greater than regional differentiation within broodlines. A regional structuring of populations was the general pattern observed, and a greater regional structure in the odd-year broodline than in the even-year broodline. The geographic distribution of microsatellite variation in populations of pink salmon likely ref lects a distribution of broodlines from separate refuges after the last glaciation period.

Item Type: Article
Title: Population structure of pink salmon (Oncorhynchus gorbuscha) in British Columbia and Washington, determined with microsatellites
Personal Creator/Author:
CreatorsEmail
Beacham, Terry D.
McIntosh, Brenda
MacConnachie, Cathy
Spilsted, Brian
White, Bruce A.
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 110
Number: 2
Page Range: pp. 242-256
Date: April 2012
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Management
Item ID: 8683
Depositing User: Patti M. Marraro
Date Deposited: 07 Jun 2012 14:47
Last Modified: 07 Jun 2012 14:47
URI: http://aquaticcommons.org/id/eprint/8683

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