Classification of Non-Indigenous Species Based on Their Impacts: Considerations for Application in Marine Management

Henn Ojaveer, Bella S Galil, Marnie L Campbell, James T Carlton, João Canning-Clode, Elizabeth J Cook, Alisha D Davidson, Chad L Hewitt, Anders Jelmert, Agnese Marchini, Cynthia H McKenzie, Dan Minchin, Anna Occhipinti-Ambrogi, Sergej Olenin and Gregory Ruiz

PLOS Biology, 2015, vol. 13, issue 4, 1-13

Abstract: Assessment of the ecological and economic/societal impacts of the introduction of non-indigenous species (NIS) is one of the primary focus areas of bioinvasion science in terrestrial and aquatic environments, and is considered essential to management. A classification system of NIS, based on the magnitude of their environmental impacts, was recently proposed to assist management. Here, we consider the potential application of this classification scheme to the marine environment, and offer a complementary framework focussing on value sets in order to explicitly address marine management concerns. Since existing data on marine NIS impacts are scarce and successful marine removals are rare, we propose that management of marine NIS adopt a precautionary approach, which not only would emphasise preventing new incursions through pre-border and at-border controls but also should influence the categorisation of impacts. The study of marine invasion impacts requires urgent attention and significant investment, since we lack the luxury of waiting for the knowledge base to be acquired before the window of opportunity closes for feasible management.Classifying the impact of non-indigenous species presents special problems in marine environments. This Essay presents a framework that focuses on values and emphasizes precaution in managing the data limitations and uncertainties found in the marine context.

Date: 2015
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pbio00:1002130

DOI: 10.1371/journal.pbio.1002130

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