Tuniciers abyssaux de l'Atlantique oriental tropical récoltés par les campagnes EUMELI = Abyssal ascidians from East Atlantic Ocean collected during EUMELI cruises
Monniot, C. (1997). Tuniciers abyssaux de l'Atlantique oriental tropical récoltés par les campagnes EUMELI = Abyssal ascidians from East Atlantic Ocean collected during EUMELI cruises. Cah. Biol. Mar. 38(1): 19-27
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723; e-ISSN 2262-3094, meer
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| Abstract |
Sixteen ascidians species were collected during the EUMELI cruises in the south of the Cape Verde Basin, in 3 different zones: eutrophic, mesotrophic and oligotrophic areas. Three new species are described. Among the 16 species collected, 15 were found in the mesotrophic area with a density of at least 10 individuals m super(-2). In the eutrophic area the species richness is much lower, with only 4 species and a density of 10 individuals m super(-2). Only 2 species with a density of 3.5 individuals m super(-2) were found in the oligotrophic area. The distribution of ascidians differs from that of other zoological groups in which the decrease in number of species and individuals from eutrophic to oligotrophic areas is much more pronounced. |
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