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Allozyme diversity in Australian rainbow trout, Oncorhynchus mykiss

journal contribution
posted on 2004-03-05, 00:00 authored by L Farrington, Chris AustinChris Austin, C Burridge, G Gooley, B Ingram, B Talbot
Rainbow trout, Oncorhynchus mykiss (Walbaum), were first introduced into Australia over 100 years ago, and forms the basis of important recreational inland fisheries and an aquaculture industry in south-eastern Australia. This paper investigates the genetic variation within and between samples of Australian rainbow trout using allozyme electrophoresis. The levels of genetic diversity within Australia do not show marked differences from those observed in hatchery and wild populations from throughout North America, New Zealand and South Africa, but there is evidence for the loss of some rare alleles during translocation from California to Australia via New Zealand. No appreciable difference in genetic diversity was apparent between hatchery and self-sustaining wild populations of rainbow trout from mainland Australia. However, significant differences in allelic frequencies were observed, with consistent genetic differences between Victorian and New South Wales samples most likely reflecting state-based hatchery and stocking policies.

History

Journal

Fisheries management and ecology

Volume

11

Issue

2

Pagination

97 - 106

Publisher

Blackwell Publishing Ltd

Location

London, England

ISSN

0969-997X

eISSN

1365-2400

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2004, Blackwell Publishing Ltd