Optimising invasive fish management in the context of invasive species legislation in South Africa

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dc.citation.doi10.4102/abc.v47i2.2138en_ZA
dc.citation.issue2en_ZA
dc.contributor.authorWoodford, D.J.
dc.contributor.authorJordaan, M.S.
dc.contributor.authorKimberg, P.K.
dc.contributor.authorZengeya, T.
dc.contributor.authorWeyl, O.L.F
dc.contributor.authorIvey, P.
dc.date.accessioned2017-09-22T12:41:27Z
dc.date.available2017-09-22T12:41:27Z
dc.date.issued2017
dc.description.abstractSouth Africa hosts a large number of non-native freshwater fishes that were introduced for various industries. Many of these species are now listed under the National Environmental Management: Biodiversity Act (NEM:BA) Alien and Invasive Species (A&IS) lists and regulations, though the practical options available to conservation agencies to effectively manage these fishes vary greatly among species and regions. Objectives & methods: We assessed the history and status of national legislation pertaining to invasive freshwater fishes, and the practical implications of the legislation for managing different species with contrasting distributions, impacts and utilisation value. Results: The smallmouth bass, despite being a potential conflict-generating species, is fairly straightforward to manage based on current legislation. Two species of trout, which remain absent from the NEM:BA A&IS lists because of ongoing consultation with stakeholders, continue to be managed in regions like the Western Cape province using existing provincial legislation. To maximise the limited capacity for management within conservation agencies, we proposed a decision-support tool that prioritises invasive fish populations that represent high environmental risk and low potential for conflict with stakeholders. Using three case studies, we demonstrated how the tool can be used to set management goals of 'eradicate', 'manage against impacts and further spread' and 'continue to monitor population' as the most pragmatic solutions given the state of an invasion, its socio-economic impact and the capacity of the responsible agency to act. Conclusion: By choosing a pragmatic management strategy, conservation agencies can maximise the effective deployment of limited resources, while minimising avoidable conflicts with stakeholders.en_ZA
dc.description.librarianEM2017en_ZA
dc.identifier.citationWoodford, D. J. et al. 2017. Optimising invasive fish management in the context of invasive species legislation in South Africa. Bothalia 47(2), Article number a2138.en_ZA
dc.identifier.issn0006-8241 (Print)
dc.identifier.issn2311-9284 (Online)
dc.identifier.urihttp://hdl.handle.net/10539/23148
dc.journal.titleBothaliaen_ZA
dc.journal.volume47en_ZA
dc.language.isoenen_ZA
dc.publisherNational Botanical Institute/AOSISen_ZA
dc.rights© 2017. The Authors. Licensee: AOSIS. This work is licensed under the Creative Commons Attribution License.en_ZA
dc.subjectfish managementen_ZA
dc.subjectNational Environmental Managementen_ZA
dc.subjectSouth Africaen_ZA
dc.subjectlegislationen_ZA
dc.subjectinvasive speciesen_ZA
dc.subjectfreshwater fishesen_ZA
dc.titleOptimising invasive fish management in the context of invasive species legislation in South Africaen_ZA
dc.typeArticleen_ZA
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