Spatial genetic subdivision between northern Australian and southeast Asian populations of Pristipomoides multidens: a tropical marine reef fish species

Authors

Jennifer R. Ovenden, Southern Fisheries Centre, Queensland Department of Primary Industry, Deception Bay, Queensland, Australia
Julie Lloyd, Department of Primary Industry and Fisheries, Fisheries Division, Research and Development Branch, Darwin , Northern Territory,, Australia
Stephen J. Newman, Department of Fisheries, Western AustraliaFollow
Clive P. Keenan, Bribie Island Aquaculture Research Centre, Woorim, Queensland, Australia
Leigh S. Slater, Southern Fisheries Centre, Queensland Department of Primary Industry, Deception Bay, Queensland, Australia

Document Type

Article

Publication Date

11-27-2001

Journal Title

Fisheries Research

ISSN

Print: 0165-7836 Electronic: 1872-6763

Keywords

Pristipomoides, Fisheries management, Northern Australia, Southeast Asia, Population subdivision, Restriction enzyme analysis, Mitochondrial DNA

Disciplines

Aquaculture and Fisheries | Behavior and Ethology | Biodiversity | Genetics | Genomics | Natural Resource Economics | Natural Resources and Conservation | Natural Resources Management and Policy | Population Biology | Sustainability

Abstract

Nucleotide sequence polymorphism in the left domain of the control region of the mitochondrial genome of over 700 goldband snapper (Pristipomoides multidens) was surveyed using both direct sequencing and innovative restriction enzyme cleavage analysis techniques. Southeast Asian populations were sampled adjacent to western Irian Jaya, northern Papua New Guinea and western Timor. Six Australian populations were sampled from adjacent to Exmouth in western Australia to Weipa in the northern Gulf of Carpentaria. The results show that significant genetic structure occurs among Indonesian and Australian waters along national boundaries; 14% of the total molecular variance among restriction site haplotypes was due to genetic distinction between Indonesian and Australian samples. Several lines of evidence suggest that gene flow does not occur freely along the northern and western Australian coastline, particularly on the northwestern Kimberley coast. Australian fisheries managers need to be alerted to the possibility of at least one genetically distinct population of this important commercial species which should be protected from over-harvesting that may otherwise lead to localised extinction and the erosion of genetic diversity. There is no convincing biological argument for the observed genetic disjunction in the Kimberley area. It may be due to the combined effect of past sea-level changes, sampling error or patterns of exploitation.

Recommended Citation

Jennifer R Ovenden, Julie Lloyd, Stephen J Newman, Clive P Keenan, Leigh S Slater, Spatial genetic subdivision between northern Australian and southeast Asian populations of Pristipomoides multidens: a tropical marine reef fish species, Fisheries Research, Volume 59, Issues 1–2, 2002, Pages 57-69, ISSN 0165-7836, https://doi.org/10.1016/S0165-7836(01)00415-5.