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Management of exogenous threats to Antarctica and the sub-Antarctic Islands: balancing risks from TBT and non-indigenous marine organisms

Citation

Lewis, PN and Riddle, MJ and Hewitt, CL, Management of exogenous threats to Antarctica and the sub-Antarctic Islands: balancing risks from TBT and non-indigenous marine organisms, Marine Pollution Bulletin, 49, (11-12) pp. 999-1005. ISSN 0025-326X (2004) [Refereed Article]

DOI: doi:10.1016/j.marpolbul.2004.07.001

Abstract

The discovery of high levels of tributyltin compounds in Antarctic marine sediments has prompted managers to consider the banning of such substances in this region. We propose that the banning of antifouling coatings may result in an increase in the risk of non-indigenous species invasions. Our studies show that un-treated vessels carry a more diverse community of fouling organisms than treated hulls on which fouling is restricted to specific untreated niches. Up to 40% of the species recruited to the hulls of Southern Ocean vessels are species with invasive histories. Viable fouling assemblages can survive prolonged voyages to high-latitude coastlines, yet passage through sea-ice may remove fouling communities due to mechanical abrasion reducing the hazard of introductions to ice-bound coastlines. The banning of antifouling compounds may be of particular concern for the ice-free sub-Antarctic islands which represent a common anchorage point for vessels on-route to Antarctica. © 2004 Elsevier Ltd. All rights reserved.

Item Details

Item Type:Refereed Article
Research Division:Biological Sciences
Research Group:Ecology
Research Field:Marine and Estuarine Ecology (incl. Marine Ichthyology)
Objective Division:Transport
Objective Group:Water Transport
Objective Field:Water Safety
Author:Lewis, PN (Mr Patrick Lewis)
Author:Hewitt, CL (Professor Chad Hewitt)
ID Code:32633
Year Published:2004
Web of Science® Times Cited:35
Deposited By:IASOS
Deposited On:2004-08-01
Last Modified:2007-11-02
Downloads:0

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