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Linking community tolerance and structure with low metallic contamination: a field study on 13 biofilms sampled across the Seine river basin ArchiMer
Fechner, Lise C.; Gourlay-france, Catherine; Tusseau-vuillemin, Marie-helene.
It is difficult to assess the biological consequences of diffuse water contamination by micropollutants which are present in rivers at low, even sublethal levels. River biofilms, which respond quickly to changes of environmental parameters, are good candidates to acquire knowledge on the response of aquatic organisms to diffuse chemical contamination in the field. The study was designed as an attempt to link biofilm metal tolerance and metallic contamination in a field survey covering 13 different sampling sites in the Seine river basin (north of France) with low contamination levels. Cd and Zn tolerance of heterotrophic communities was assessed using a short-term toxicity test based on β-glucosidase activity. Metal tolerance levels varied between sites...
Tipo: Text Palavras-chave: River biofilm; Metal tolerance; Toxicity; ARISA; PICT; Community-level response.
Ano: 2014 URL: http://archimer.ifremer.fr/doc/00169/28072/26287.pdf
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