•  
  • Home
  • About
  • Membership
  • Awards
  • Events
  • Research
  • Publications
  • Links
  • Contact
  • LoginLogin
  • LogoutRegister
  • Print FriendlyPrint Friendly
  • Publications Home
  • 2007 Proceedings
  • 2006 Workshop (PDF)
  • 2005 Proceedings (PDF)
  • 2004 Proceedings (PDF)
  • 2003 Proceedings
  • 2002 Proceedings
  • 2002 World Congress
  • 2001 Proceedings
  • 1999 Proceedings
  • 1998 Proceedings
  • 1997 Proceedings
  • 1994 Proceedings
  • 1993 Proceedings
  • 1992 Proceedings
  • 1991 Proceedings
  • 1990 Proceedings

ASA 2008


  • 2008 Student Awards
  • 2007 Conference Abstracts
  • ASFB Committees
  • National & International Events

ASFB Home > 2007 > Does rock lobster (Jasus edwardsii) translocation impact on inshore temperate reef invertebrate communities in South Australia?

Previous PageTable Of Contents

Does rock lobster (Jasus edwardsii) translocation impact on inshore temperate reef invertebrate communities in South Australia?

Matthew Hoare and Adrian Linnane

SARDI Aquatic Sciences, PO Box 120 Henley Beach SA 5022.

Abstract

Current markets for southern rock lobster (Jasus edwardsii) demand small (~1kg), “red” coloured individuals that are primarily located within inshore (<60m depth) grounds. As a result, fishing effort in recent seasons has shifted inshore, while offshore waters containing “speckled” low-value lobsters remain largely unfished. In South Australia, the feasibility of translocating offshore lobsters to inshore sites to promote colour change, and therefore market value, is currently being examined. In January 2007, a total of 2000 lobsters were translocated to an inshore reef at Ringwood, South Australia. To investigate potential ecological impacts of translocation on the inshore reef invertebrate community, dive surveys were conducted before and after translocation at both experimental and control sites. Surveys targeted the abundance of large (>50mm) motile invertebrates as estimated on three permanent 50m transects. Preliminary analysis found no initial difference in invertebrate community structure between control and experimental sites, which were dominated by sea urchins Heliocidaris erythrogramma, rock lobsters J. edwardsii, and feather stars (genus Cenolia). Resurveys, undertaken seven weeks after translocation, indicated that while lobster numbers increased significantly at experimental sites as expected, no interaction between treatment and time was detected between control and experimental sites. Future surveys are planned for 2007/08 to monitor potential long-term changes.

Keywords

Rock lobster; Translocation; Community structure; Invertebrates

Previous PageTop Of Page

Australian Society for Fish Biology
  • © 2008 Australian Society for Fish Biology
  • Copyright and Disclaimer
Powered by RegionalNet!