Spatial Subdivision and Genetic Diversity in Populations on the East and West Coasts of Australia: The Multi-Faceted Case of Nautilus pompilius (Mollusca, Cephalopoda)

Sinclair, Billy, Newman, S.J., Vianna, Gabriel M.S., Williams, Steven and Aspden, William (2011) Spatial Subdivision and Genetic Diversity in Populations on the East and West Coasts of Australia: The Multi-Faceted Case of Nautilus pompilius (Mollusca, Cephalopoda). Reviews in Fisheries Science, 19 (1). pp. 52-61. Full text not available from this repository.

Official URL: http://www.tandfonline.com/doi/abs/10.1080/1064126...

Abstract

The fragmented distribution of Nautilus pompilius and its biology suggest there will be significant genetic divergence and spatial subdivision between east and west Australian populations. Samples were collected from the northern Great Barrier Reef, the Coral Sea, and the Scott Reef off Western Australia. Phylogenetic trees and a minimum spanning tree were developed from these data to elucidate evolutionary relationships. These data demonstrate significant evolutionary separation of each of the three populations into strongly supported discrete clades matching geographic stratification. Within each of the discrete populations, genetic variation is evident. Strong inter-population variation is evident, with discrete geographic clades being recognized for each extant group. The distinct spatial subdivision between east and west Australian populations of Nautilus are related to geographic and physical isolation over evolutionary time, and this has important fisheries management implications. The distinct geographic patterns of genetic structuring demonstrated by these data indicate the existence of discrete eastern and western Australian management units, and as such, these Nautilus populations should be managed discretely, as each has a high conservation value containing unique genetic variation.

Item Type: Article
Journal or Publication Title: Reviews in Fisheries Science
Publisher: Taylor & Francis Group
ISSN: Print ISSN: 1064-1262 Online ISSN: 1547-6553
Related URL(s):
Departments: Faculty of Health and Science > Science, Natural Resources and Outdoor Studies > Forestry, Conservation & Applied Science
Depositing User: Insight Administrator
Date Deposited: 06 Jan 2012 15:36
Last Modified: 26 Aug 2016 16:09
URI: http://insight.cumbria.ac.uk/id/eprint/1079

Actions (repository staff only)

Edit Item Edit Item