10.5061/DRYAD.40RD6
Horne, John B.
James Cook University
Momigliano, Paolo
James Cook University
van Herwerden, Lynne
James Cook University
Newman, Stephen J.
Data from: Murky waters: searching for structure in genetically
depauperate blue threadfin populations of Western Australia
Dryad
dataset
2013
self-recuitment
Eleutheronema tetradactylum
Polynemidae
recruitment cohorts
Holocene
2013-05-21T18:24:43Z
2013-05-21T18:24:43Z
en
https://doi.org/10.1016/j.fishres.2013.03.013
448407 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
The blue threadfin (Eleutheronema tetradactylum) is an exploited fishery
species in southeast Asia and Australia. Demographic studies have revealed
fine-scale stock structure throughout the Australian coastline, with
demographically isolated populations separated by only tens of km.
Similarly, population genetic analysis revealed fine-scale structure
across most of its Australian range with important implications for
fisheries management. However, in northern Western Australia, genetic
stock structure analysis showed a contradictory lack of structure. In the
present study, one mtDNA marker and a suite of five microsatellite loci
were used to further investigate the stock structure of Western Australian
blue threadfin 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.
WAEtetfasta file of Cytochrome oxidase I sequences.WAsats_finalAn XL
spreadsheet in GenAlEX format of microsatellite scores from five loci.
Western Australia