Restricted gene flow and evolutionary divergence between geographically separated populations of the Antarctic octopus Pareledone turqueti

Allcock, A.L.; Brierley, A.S.; Thorpe, J.P.; Rodhouse, P.G.. 1997 Restricted gene flow and evolutionary divergence between geographically separated populations of the Antarctic octopus Pareledone turqueti. Marine Biology, 129 (1). 97-102.

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Abstract/Summary

Samples of the Antarctic octopus Pareledone turqueti were taken from three locations on the Scotia Ridge in the Southern Ocean. The genetic homogeneity of these populations was investigated using isozyme electrophoresis. Whilst panmixia appeared to be maintained around South Georgia (F-ST = 0) gene flow between this island and Shag Rocks, an island only 150 km away but separated by great depths, was extremely limited (F-ST = 0.74). These results are examined with respect to the discontinuous distribution of P. turqueti throughout Antarctica. An estimate of effective population size was also calculated (N-e = 3600).

Item Type:	Publication - Article
Programmes:	BAS Programmes > Other
ISSN:	0025-3162
Additional Keywords:	Genetics; Cephalopods;
NORA Subject Terms:	Marine Sciences Zoology Ecology and Environment
Date made live:	13 Aug 2010 10:42 +0 (UTC)
URI:	https://nora.nerc.ac.uk/id/eprint/10132

Item Type:

Publication - Article

Programmes:

BAS Programmes > Other

ISSN:

0025-3162

Additional Keywords:

Genetics; Cephalopods;

NORA Subject Terms:

Marine Sciences
Zoology
Ecology and Environment

Date made live:

13 Aug 2010 10:42 +0 (UTC)