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Alteration and release of aliphatic compounds by the polychaete Nereis virens (Sars) experimentally fed with hydrocarbons

Gilbert, Franck and Stora, Georges and Desrosiers, Gaston and Deflandre, Bruno and Bertrand, Jean-Claude and Poggiale, Jean-Christophe and Gagne, Jean-Pierre Alteration and release of aliphatic compounds by the polychaete Nereis virens (Sars) experimentally fed with hydrocarbons. (2001) Journal of Experimental Marine Biology and Ecology, 256 (2). 199-213. ISSN 0022-0981

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Official URL: http://dx.doi.org/10.1016/S0022-0981(00)00317-8


In the laboratory, marine worms were fed with a mixture of algae and several aliphatic hydrocarbons for 15 days. After ingestion by the worms, 34.9% of hydrocarbons are found in the faeces and only 3.1% accumulated in the gut. The comparison between the initial mixture and the faeces shows that the worm’s digestive process lead to changes in the distribution of the n-alkane mixture. These changes are different from those only due to physical processes in the experimental conditions. In our experiment, no variation in the distribution of hydrocarbons in faeces with time and no microbial hydrocarbon biodegradation were evidenced. Our results suggest that marine worm feeding can substantially affect the fate of hydrocarbons in the sedimentary marine ecosystem by predominantly stimulating dissolution processes.

Item Type:Article
Additional Information:Thanks to Elsevier editor. The definitive version is available at http://www.sciencedirect.com The original PDF of the article can be found at Journal of Experimental Marine Biology and Ecology website : http://www.sciencedirect.com/science/article/pii/S0022098100003178
HAL Id:hal-00763824
Audience (journal):International peer-reviewed journal
Uncontrolled Keywords:
Institution:French research institutions > Centre National de la Recherche Scientifique - CNRS (FRANCE)
Other partners > Université de la Méditerranée - Aix-Marseille II (FRANCE)
Other partners > Université du Québec à Rimouski - UQAR (CANADA)
Laboratory name:
Deposited On:11 Dec 2012 14:45

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