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Evidence for a stock discontinuity of snapper (Pagrus auratus) on the east coast of Australia

Sumpton, W.D. and Ovenden, J.R. and Keenan, C.P. and Street, R. (2008) Evidence for a stock discontinuity of snapper (Pagrus auratus) on the east coast of Australia. Fisheries Research, 94 (1). pp. 92-98.

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Article Link(s): http://dx.doi.org/10.1016/j.fishres.2008.07.001

Publisher URL: http://www.elsevier.com

Abstract

Allozyme electrophoresis was used to investigate the genetic stock structure of snapper, Pagrus auratus (Bloch and Schneider) on the east coast of Australia. Spatial variation in allele frequency was examined at nine polymorphic loci. The results support a single, relatively weak genetic disjunction among the P. auratus populations north of Sydney (latitude 33°52?) but south of Forster (latitude 31°58?) on the central coast of New South Wales. There was also evidence for genetic isolation by distance on the east coast. The influence of the East Australian Current (EAC) in transporting larvae to the south, coupled with the general northward migration pattern of adult snapper is believed to be responsible for maintaining a panmictic snapper population on much of the east coast of Australia.

Item Type:Article
Corporate Creators:Fisheries
Additional Information:© Elsevier B.V.
Keywords:Allozymes; Australia; Pagrus auratus; population genetics; stock structure.
Subjects:Aquaculture and Fisheries > Fisheries > Fishery research
Science > Biology > Genetics
Deposited On:23 Jan 2009 05:09
Last Modified:07 Sep 2010 06:57

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