Journal article

Population genetic structure of barramundi (Lates calcarifer) across the natural distribution range in Australia informs fishery management and aquaculture practices

Shannon R Loughnan, Carolyn Smith-Keune, Luciano B Beheregaray, Nicholas A Robinson, Dean R Jerry

MARINE AND FRESHWATER RESEARCH | CSIRO PUBLISHING | Published : 2019

Abstract

Clarifying population structure of fish stocks is important for the sustainable exploitation of fisheries, along with informing collection of founder broodstock for the genetic improvement of aquaculture programs. Using 16 microsatellite DNA markers, the most comprehensive genetic survey to date (1297 individuals from 49 sample collections) of the population structure and genetic diversity of wild Australian barramundi (Lates calcarifer) was undertaken. The results point to the existence of two distinct genetic stocks (east and west) with isolation by geographic distance (IBD), and a central region of admixture between the stocks, located in an area where a historic land bridge once connecte..

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University of Melbourne Researchers

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Funding Acknowledgements

Funding for this research was provided by the Department of Climate Change and Energy Efficiency and was conducted as part of the Ph.D. research project of Shannon R. Loughnan, supported by an Australian Seafood CRC bursary and Flinders University AJ and IM Naylon PhD scholarship.