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Megafauna from sublittoral to abyssal depths along the Mid-Atlantic Ridge south of Iceland

Publication Type :
Publication
Publication date :
1996
Language :
English
Author(s) :
Copley Jtp, Tyler Pa, Sheader M, Murton Bj, German Cr
Affiliation(s) :
UNIV SOUTHAMPTON,SOUTHAMPTON OCEANOG CTR,CHALLENGER DIV SEAFLOOR PROC,SOUTHAMPTON SO14 3ZH,HANTS,ENGLAND
Source :
Oceanologica Acta (0399-1784) (Gauthier-Villars), 1996 , Vol. 19 , N. 5 , P. 549-559
WOS© Times Cited :
20
Keyword(s) :
mid-ocean ridge, megafauna, Reykjanes Ridge, bathymetric zonation, water mass structure
Abstract :
101 species were identified from 102 biological samples obtained between 225 and 2600 m depth on the Reykjanes Ridge, extending the biogeographic records for several species. Multivariate analysis of between-sample species similarity reveals a two-zone bathymetric faunal distribution with the transition at 800-1000 m. A hydrographic survey of the ridge axis suggests that this faunal zonation is influenced by the water mass structure. Despite the limitations of a sampling programme not designed a priori for biological sampling, the recovery and preservation of the samples and the insight that they provide serves to reinforce that every effort should be made to capitalise on the opportunities for obtaining samples afforded by non-biological sampling programmes.
How to cite this document:

Copley Jtp, Tyler Pa, Sheader M, Murton Bj, German Cr (1996). Megafauna from sublittoral to abyssal depths along the Mid-Atlantic Ridge south of Iceland. Oceanologica Acta, 19(5), 549-559. Open Access version : http://archimer.ifremer.fr/doc/00096/20725/