Hydrothermalisme et communautés animales associées sur la dorsale du Pacifique oriental entre17°S et 19°S (campagne Naudur, décembre 1993)

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Éditeur(s) Gauthier-villars
Identifiant documentaire 9-29454
Identifiant OAI oai:archimer.ifremer.fr:29454
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Auteur(s): Geistdoerfer, P,Auzende, Jean-marie,Batiza, R,Bideau, Daniel,Cormier, Mh,Fouquet, Yves,Lagabrielle, Yves,Sinton, J,Spadea, P
Mots clés Hydrothermalisme Dorsale Est Pacifique Communautés animales. HYDROTHERMAL VENTS EAST PACIFIC RISE ANIMAL COMMUNITIES
Date de publication 01/01/1995
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Langue fre
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Source Comptes Rendus de l'Academie des Sciences Serie II (1251-8069) (Gauthier-villars), 1995-01 , Vol. 320 , N. 1 , P. 47-54
Droits de réutilisation Académie des Sciences

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Description
70 hydrothermal sites were observed during the 23 dives of the French submersible Nautile (''Naudur'' cruise, December 1993), at 17-degrees-19-degrees-S on the East Pacific Rise. Large vent-animal communities are present around these sites. The zoological composition of these communities is the same as that of the communities at 11-degrees-13-degrees-N and 21-degrees-N on the East Pacific Rise. However, the distribution of the species on the sites is different from all the other hydrothermal communities; large anemone fields of several hundred square metres, associated with colonies of Bathymodiolus and Calyptogena, have been observed. Fresh lava areas seem to bear the most important biological activity.

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