Influence of bioturbation by the polychaete Nereis diversicolor on the structure of bacterial communities in oil contaminated coastal sediments |
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| Authors: | Cuny Philippe Miralles Gilles Cornet-Barthaux Véronique Acquaviva Monique Stora Georges Grossi Vincent Gilbert Franck |
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| Institution: | Laboratoire de Microbiologie, Géochimie et Ecologie Marines, UMR CNRS 6117, Campus de Luminy, Case 901, F-13288 Marseille Cedex 9, France. philippe.cuny@univmed.fr |
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| Abstract: | Patterns of change in the structure of bacterial communities monitored by ribosomal intergenic spacer analysis (RISA) in oil contaminated sediments inhabited or not by the marine polychaete Nereis diversicolor were studied during 45 days under laboratory conditions. Results supported by principal component analysis showed a marked response of the bacterial communities to the oil contamination and to the presence of N. diversicolor. Phylogenetic affiliation of specific RISA bands showed that, in the contaminated sediments, the presence of the marine polychaetes favoured the development of bacteria which may play an active role in natural bioremediation processes of oil polluted environments. |
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| Keywords: | Bacterial communities Bioturbation Oil spills Marine sediments Bioremediation Nereis diversicolor |
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