Journal article
Genetic structure and diversity of introduced eastern mosquitofish (Gambusia holbrooki) in south-eastern Australia
RM Ayres, VJ Pettigrove, AA Hoffmann
Marine and Freshwater Research | CSIRO PUBLISHING | Published : 2012
DOI: 10.1071/MF11279
Abstract
The closely related eastern mosquitofish (Gambusia holbrooki) and western mosquitofish (Gambusia affinis) have been introduced into many countries and collectively represent the most widely distributed freshwater fish in the world. We investigated genetic patterns associated with the spread of G. holbrooki in its introduced range in south-eastern Australia, by sampling 60 G. holbrooki populations (n≤1771) from major regions where G. holbrooki was initially introduced into Australia, and characterising the genetic diversity and population structure of G. holbrooki, using five polymorphic nuclear microsatellite loci and sequences from two mitochondrial genetic markers. Results were compared wi..
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Funding Acknowledgements
We thank Chris Rawson and Richard Lim (University of Technology, Sydney), Robbie Wilson (University of Queensland), Michael Hammer (University of Adelaide) and Steve Marshall (CAPIM, University of Melbourne) for providing some samples and sampling-site information, as well as Amanda Dimmock and Kadesh Clarke (Department of Primary Industries and Fisheries Queensland), South Australia Water, Paul Mitrovski (University of Melbourne) and Angus Bell for assisting with field collections. Sampling was undertaken in accordance with the Australian Code of Practice for the Care and Use of Animals for Scientific Purposes (AEC 05102). David Sharley generated Fig. 1 and Melissa Carew and Andrew Weeks provided statistical advice. The authors thank two anonymous reviewers for their comments and suggestions on the manuscript. This research was funded by the Melbourne Water Corporation and the Centre for Aquatic Pollution Identification and Management as well as an ARC Fellowship to AAH.