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dc.contributor.authorHorne, J.
dc.contributor.authorMomigliano, P.
dc.contributor.authorVan Herwerden, L.
dc.contributor.authorNewman, Stephen
dc.date.accessioned2017-01-30T12:49:06Z
dc.date.available2017-01-30T12:49:06Z
dc.date.created2014-10-08T01:14:48Z
dc.date.issued2013
dc.identifier.citationHorne, J. and Momigliano, P. and Van Herwerden, L. and Newman, S. 2013. Murky waters: Searching for structure in genetically depauperate blue threadfin populations of Western Australia. Fisheries Research. 146: pp. 1-6.
dc.identifier.urihttp://hdl.handle.net/20.500.11937/25563
dc.description.abstract

The blue threadfin (Eleutheronema tetradactylum) is an exploited fishery species in southeast Asia andAustralia. Demographic studies have revealed fine-scale stock structure throughout the Australian coastline, with demographically isolated populations separated by only tens of km. Similarly, populationgenetic analysis revealed fine-scale structure across most of its Australian range with important implications for fisheries management. However, in northern Western Australia, genetic stock structureanalysis showed a contradictory lack of structure. In the present study, one mtDNA marker and a suiteof five microsatellite loci were used to further investigate the stock structure of Western Australian bluethreadfin populations. By increasing sample sizes from previously investigated areas: Roebuck Bay (n = 93 adults) and Eighty-mile Beach (n = 92 adults and 163 recruits from two settlement cohorts), we were able to detect subtle genetic differentiation that was previously obscured by low levels of genetic polymorphism. Therefore, the same fine-scale stock structure that has been observed elsewhere in this species also appears to exist in Western Australia. This has clear ramifications for a revised management strategy that incorporates the fine scale structuring of northwest Western Australian stocks of the blue threadfin.

dc.publisherElsevier BV
dc.relation.urihttp://www.sciencedirect.com/science/article/pii/S0165783613000817?via=ihub
dc.subjectPopulation genetics
dc.subjectRecruitment cohorts
dc.subjectSelf-recruitment
dc.subjectPolynemidae
dc.titleMurky waters: Searching for structure in genetically depauperate blue threadfin populations of Western Australia
dc.typeJournal Article
dcterms.source.volume146
dcterms.source.startPage1
dcterms.source.endPage6
dcterms.source.issn01657836
dcterms.source.titleFisheries Research
curtin.accessStatusFulltext not available


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