Genetic population structure of grey mackerel Scomberomorus semifasciatus in northern Australia

Broderick, D., Ovenden, J.R., Buckworth, R.C., Newman, S.J., Lester, R.J.G. and Welch, D.J. (2011) Genetic population structure of grey mackerel Scomberomorus semifasciatus in northern Australia. Journal of Fish Biology, 79 3: 633-661. doi:10.1111/j.1095-8649.2011.03055.x


Author Broderick, D.
Ovenden, J.R.
Buckworth, R.C.
Newman, S.J.
Lester, R.J.G.
Welch, D.J.
Title Genetic population structure of grey mackerel Scomberomorus semifasciatus in northern Australia
Formatted title
Genetic population structure of grey mackerel Scomberomorus semifasciatus in northern Australia
Journal name Journal of Fish Biology   Check publisher's open access policy
ISSN 0022-1112
Publication date 2011-09-01
Sub-type Article (original research)
DOI 10.1111/j.1095-8649.2011.03055.x
Volume 79
Issue 3
Start page 633
End page 661
Total pages 29
Place of publication United Kingdom
Publisher Wiley-Blackwell Publishing Ltd.
Collection year 2012
Language eng
Formatted abstract
This study used mtDNA sequence and microsatellite markers to elucidate the population structure of Scomberomorus semifasciatus collected from 12 widespread sampling locations in Australia. Samples (n = 544) were genotyped with nine microsatellite loci, and 353 were sequenced for the control (384 bp) and ATPase (800 bp) mtDNA gene regions. Combined interpretation of microsatellite and mtDNA data identified four genetic stocks of S. semifasciatus: Western Australia, north-west coast of the Northern Territory, Gulf of Carpentaria and the eastern coast of Queensland. Connectivity among stocks across northern Australia from the Northern Territory to the eastern coast of Queensland was high (mean FST = 0·003 for the microsatellite data and ΦST = 0·033 and 0·009 for control region and ATPase, respectively) leading to some uncertainty about stock boundaries. In contrast, there was a clear genetic break between the stock in Western Australia compared to the rest of northern Australia (mean FST = 0·132 for the microsatellite data and ΦST = 0·135 and 0·188 for control region and ATPase, respectively). This indicates a restriction to gene flow possibly associated with suboptimal habitat along the Kimberley coast (north Western Australia). The appropriate scale of management for this species corresponds to the jurisdictions of the three Australian states, except that authorities in Queensland and Northern Territory should co-ordinate the management of the Gulf of Carpentaria stock
Keyword Commercial
Exploitation
Fisheries stocks
Microsatellites
Mitochondrial DNA
Tropical
Multilocus Genotype Data
Mitochondrial-Dna
Spanish Mackerel
Pristipomoides-Multidens
Differentiation Measure
Integrated Software
Pisces Scombridae
Sea-Level
Fish
Subdivision
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: Official 2012 Collection
School of Chemistry and Molecular Biosciences
 
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