Journal Article
Allozyme and mitochondrial DNA variation in three species of oreos (Teleostei: Oreosomatidae) from Australasian waters
R. D. Ward; N.G. Elliott; P. M. Grewe; P. R. Last; P. S. Lowry; B. H. Innes; G. K. Yearsley
New Zealand Journal of Marine and Freshwater Research · Vol. 32, Issue 2 · pp. 233-245 · 1998
Abstract
Collections of three species of oreos (smooth oreo, Pseudocyttus maculatus; black oreo, Allocyttus niger; and warty oreo, A. verrucosus ) from Australasian waters were examined for genetic variation. Allozyme heterozygosity was high in each species (25–29 loci: mean heterozygosity per locus per sample ranging from 0.100 to 0.148), but mitochondrial DNA variation was less extensive (10 six‐base restriction enzymes: nucleotide diversity ranging from 0.0012 to 0.0021). Collections of smooth oreos from Western Australia, Tasmania, and New Zealand did not permit the null hypothesis of a single stock to be confidently rejected. Black oreos from Tasmania and New Zealand were provisionally identified as separate stocks. Warty oreos from Tasmania were provisionally identified as separate from a Western Australia/New South Wales stock.