Benthic hydroids from Northeast Atlantic seamounts
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The benthic hydroids collected on five lusitanian seamounts (Seine, Ampère, Lion, Gorringe, Josephine and Galice bank) during the French “SEAMOUNT 1” cruise, and those collected on the Great Meteor bank during the German “METEOR 42/3” cruise were studied. Global hydroid diversity account for 67 species included in 15 families. The most specious were Lafoeidae (12 species), followed by Campanulariidae, Plumulariidae and Sertulariidae (9 species), Aglaopheniidae and Haleciidae (6 species), Halopterididae (4 species) and Tiarannidae (3 species). The other families were represented only by one or two species. The highest species richness was recorded in Ampère (39 species) and Gorringe (38 species) seamounts, whereas intermediate values were recorded at the Great Meteor bank (22 species) and the lowest values corresponded to seamounts Josephine (12 species), Galice (9 species) and Seine (8 species). All the Lusitanian seamounts are located near continental masses and virtually all species ...
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