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| Cosson-sarradin, Nathalie; Sibuet, Myriam; Paterson, Glj; Vangriesheim, Annick. |
| This study assesses how differences in nutrient flux and bottom currents affect the diversity and trophic structure of deep-sea polychaete communities from the tropical northeast Atlantic at 20 degrees to 21 degrees N latitude. Faunal assemblages were studied from 3 sets of USNEL box cores (0.25 m(2)) taken at depths of 1700, 3100 and 4600 m. In terms of primary productivity, the cores were taken beneath water which is eutrophic, mesotrophic and oligotrophic, respectively. Total polychaete abundance, abundance of dominant species, and faunal similarity and diversity were compared among the 3 sites. Polychaete abundance decreased with increasing depth. Community structure reflected environmental characteristics as well as the influence of coastal upwelling.... |
| Tipo: Text |
Palavras-chave: Deep sea; Tropical Atlantic; Diversity; Polychaete community; Environmental conditions. |
| Ano: 1998 |
URL: http://archimer.ifremer.fr/doc/00179/28978/27398.pdf |
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