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Masson, Daniel; Courtois, Olivier; Masson, Nadine; Guesdon, Stephane; Rocher, Gregory; Margat, Sylvie. |
The carrier ship's deballasting activity in french ports and coastal areas can introduce unwanted or noxious species,with detrimental economical and sociological consequences upon shore based activities ; These activities represent one of the most preeminent sources for employment and incomes along the french coasts ,via coastal fishing,aquaculture,tourism. A ship's ballast water study in sorne french ports has been carried out ,to seek for presence of harmfull or pathogenic organisms.Results let appear pathogenic bacteriae in half of the ships,and weIl known toxic phytoplancton species (from Spain ,north Africa) The technical problem of ballast water treatment is considered. |
Tipo: Text |
Palavras-chave: Toxic phytoplankton; Introduced species; Shipping; Ballast waters; Phytoplancton toxique; Introduction d'espèces; Transport maritime; Eaux de ballast. |
Ano: 2000 |
URL: http://archimer.ifremer.fr/doc/2000/rapport-6312.pdf |
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Gueguen, Marielle; Lassus, Patrick; Laabir, Mohamed; Bardouil, Michele; Baron, Regis; Sechet, Veronique; Truquet, Philippe; Amzil, Zouher; Barille, Laurent. |
The occurrence of new phytoplankton species in a coastal area may be explained by the import of shellfish containing whole live algal cells in their digestive tracts. Indeed, shellfish containing toxic algal cells can induce both primary contaminations in safe areas ( initially free from toxic microalgae), and secondary contaminations of other shellfish growing in the same area via the faeces of the imported animals. To mitigate this problem, shellfish need to be placed in a separate holding tank and their intestinal content purged. For a deeper understanding of the risks associated with transferring contaminated shellfish, oysters ( Crassostrea gigas) and mussels ( Mytilus edulis) were purposely fed either Alexandrium minutum or A. catenella (... |
Tipo: Text |
Palavras-chave: Risk assessment; Toxic phytoplankton; Uptake; Gut passage; Mytilus edulis; Crassostrea gigas. |
Ano: 2008 |
URL: http://archimer.ifremer.fr/doc/2008/publication-3897.pdf |
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