Echinoderm assemblages of Mauritanian slope
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The echinoderm fauna of North-eastern Atlantic is one of the best known worldwide. However, despite a great number of published works on Atlantic echinoderms, this group remains poorly know in Northwest African waters, where the available information basically comes from the old oceanographic expeditions carried out from the late 19th- to mid-20th centuries (Challenger, Prince Albert I of Monaco, Travailleur et Talisman, Michael Sars, Valdivia, Atlantide ). During the four multidisciplinary Maurit surveys, carried out annually from 2007 to 2010 onboard R/V Vizconde de Eza in Mauritanian EEZ, between Cape Blanc (21° N) and the Senegalese border (16° N), a total of 342 trawling stations were sampled between 79 and 1867 m depth. Most of stations were located in soft bottoms and were accomplished with a commercial trawl and a beam-trawl. Only 26 stations were deployed in hard bottoms, namely canyons borders, the giant cold-water coral reef and a seamount, using a rock dredge. This paper ...
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