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NameRobinson, T.B.,Griffiths, C.L., McQuaid, C.D. and Rius, M.(2005). Marine alien species of South Africa — status and impacts. African Journal of Marine Science 2005, 27(1): 297–306
Type Publication
Full textAvailable for editors  PDF available [request]
AbstractThe current status of marine alien species along the South African coast is reviewed and the ecological and economic impacts of these invasions are discussed. In all, 10 confirmed extant alien and 22 cryptogenic species are recorded from the region. All 10 alien species support well-established populations and the majority of these remain restricted in distribution to sheltered bays, estuaries and harbours. Only one species, the Mediterranean mussel Mytilus galloprovincialis, has spread extensively along the coast and caused significant ecological impacts. These include the competitive displacement of indigenous species and a dramatic increase in intertidal mussel biomass. These changes have also increased available habitat for many infaunal species and resulted in enhanced food supply for intertidal predators. Considerable economic benefits have also resulted from this invasion because M. galloprovincialis forms the basis of the South African mussel culture industry.
Distributions
(4)
Hout Bay for Carcinus maenas (Linnaeus, 1758)
South Africa (country) for Carcinus aestuarii Nardo, 1847
South Africa (country) for Pilumnus hirsutus Stimpson, 1858
Table Bay for Carcinus maenas (Linnaeus, 1758)  (introduced: alien)
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2013-01-12 18:30:12Z  created  db_admin
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