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Barging in: a temperate marine community travels to the subantarctic


Lewis, PN and Bergstrom, DM and Whinam, J, Barging in: a temperate marine community travels to the subantarctic, Biological Invasions, 8, (4) pp. 787-795. ISSN 1387-3547 (2006) [Refereed Article]

DOI: doi:10.1007/s10530-005-3837-6


A diverse fouling community discovered encrusting a barge intended for deployment at subantarctic Macquarie Island is described and its role as a transport vector for non-indigenous marine organisms is discussed. The barge proved to be a potential vector capable of transporting entire epi-bethic communities, 20 species in total, from a temperate estuarine system (Derwent River, Tasmania, Australia) into the subantarctic. For one invasive amphipod species Monocorophium acherusicum, over 136000 individuals including ovigerous females were calculated to be associated with the barge fouling community. Although distinct differences exist between the thermal ranges of Macquarie Island and the Bruny bioregion of Tasmania, a hazard assessment based on the Gower similarity coefficient suggested sufficient similarity between the two environments to allow for survival of transported organisms for eight months of the year. Several invasive species are able to survive the thermal conditions of the subantarctic irrespective of the time of year. This study identifies the need for effective quarantine measures aimed at identifying and managing marine biosecurity hazards in association with human activities in high latitude regions. © Springer 2006.

Item Details

Item Type:Refereed Article
Research Division:Environmental Sciences
Research Group:Environmental management
Research Field:Conservation and biodiversity
Objective Division:Environmental Management
Objective Group:Coastal and estuarine systems and management
Objective Field:Control of pests, diseases and exotic species in coastal and estuarine environments
UTAS Author:Lewis, PN (Mr Patrick Lewis)
ID Code:42057
Year Published:2006
Web of Science® Times Cited:35
Deposited By:IASOS
Deposited On:2006-08-01
Last Modified:2007-05-02

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