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Protecting high-value areas from introduced marine species


Campbell, ML and Hewitt, CL, Protecting high-value areas from introduced marine species, Management of Biological Invasions, 4, (3) pp. 171-189. ISSN 1989-8649 (2013) [Refereed Article]


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2013 The Authors. Licensed under Creative Commons Attribution 2.0 Generic (CC BY 2.0)

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DOI: doi:10.3391/mbi.2013.4.3.01


We developed two risk models to investigate the movement of introduced marine species into High-value areas (HVAs), using Undaria pinnatifida invasions in New Zealand as a model system. This process focussed on the secondary transfer of Undaria into the HVAs, as it is already introduced to New Zealand. The first model was a qualitative, theoretical risk assessment based on expert opinion, and was used by management to re-assess the potential impacts of Undaria on values associated with a set of six, expert identified, HVAs. The risk reassessment process identified that Undaria posed an extreme risk to a majority of values in all evaluated HVAs. Based on this outcome, a realised risk assessment model was developed and is described that uses quantitative vessel and propagule strength data to examine secondary transfers of Undaria into HVAs. The realised risk assessment is the next stage in the process of delineating the risk Undaria poses to New Zealand HVAs. The intent of this process was to provide salient, credible and legitimate information to decision-makers in a transparent manner because direct impact data is limited and uncertain. Both models presented are readily applicable to Undaria invasions in different regions and countries, with the original re-assessment model having been used by biosecurity managers.

Item Details

Item Type:Refereed Article
Keywords:biosecurity, marine protected area, non-indigenous species, risk assessment, <i>Undaria pinnatifida</i>, vectors
Research Division:Environmental Sciences
Research Group:Ecological applications
Research Field:Biosecurity science and invasive species ecology
Objective Division:Environmental Management
Objective Group:Marine systems and management
Objective Field:Control of pests, diseases and exotic species in marine environments
UTAS Author:Campbell, ML (Associate Professor Marnie Campbell)
UTAS Author:Hewitt, CL (Professor Chad Hewitt)
ID Code:126037
Year Published:2013
Deposited By:Academic Division
Deposited On:2018-05-18
Last Modified:2018-08-31
Downloads:73 View Download Statistics

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