Raising the flag on marine alien fouling species

dc.contributor.authorPeters, Koebraaen_ZA
dc.contributor.authorSink, Kerryen_ZA
dc.contributor.authorRobinson, Tamara B.en_ZA
dc.identifier.citationPeters, K., Sink, K. & Robinson, T. B. 2017. Raising the flag on marine alien fouling species. Management of Biological Invasions, 8(1):1-11, doi:10.3391/mbi.2017.8.1.01en_ZA
dc.identifier.issn1989-8649 (online)
dc.descriptionCITATION: Peters, K., Sink, K. & Robinson, T. B. 2017. Raising the flag on marine alien fouling species. Management of Biological Invasions, 8(1):1-11, doi:10.3391/mbi.2017.8.1.01.en_ZA
dc.descriptionThe original publication is available at http://www.reabic.neten_ZA
dc.description.abstractHarbours are known introduction foci of marine alien species. They act as recipients of new introductions and as sources for regional spread. We report on subtidal surveys of fouling communities from 14 harbours along the coastline of South Africa that were used to identify predictors of high alien species numbers in support of prioritisation of monitoring actions by authorities. The harbours varied in nature from large, international shipping hubs to small, regional fishing harbours and recreational marinas. Fouling assemblages were assessed using visual and scrape sampling to ensure the detection of large, mobile and small inconspicuous species. In total, 29 alien species were recorded, 15 of which were detected outside of their previously known ranges. The number of species recorded per harbour varied from five to. Results revealed that high numbers of alien species were associated with the presence of yachts and low primary productivity. Harbours which had yachts and occurred in areas with mean Chl a minimum levels lower than 0.21 mg.m⁻³ had the highest number of alien species, while harbours without yachts that were larger than 0.1km² supported the fewest alien species. These findings suggest that the presence of yachts can be used to identify harbours with high numbers of alien species, particularly in regions with low productivity. While the applicability of these findings to other regions remains to be tested, this work suggests that harbours that fall within this category could be prioritised for monitoring of marine alien species.en_ZA
dc.format.extent11 pages : illustrations, mapsen_ZA
dc.publisherRegional Euro-Asian Biological Invasions Centreen_ZA
dc.subjectMarine species diversityen_ZA
dc.subjectMarine alien fouling speciesen_ZA
dc.subjectMarine alien species -- South Africaen_ZA
dc.subjectMarine alien -- Productionen_ZA
dc.titleRaising the flag on marine alien fouling speciesen_ZA
dc.description.versionPublisher's versionen_ZA
dc.rights.holderAuthors retain copyrighten_ZA

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