Mega-epibenthic diversity off Terre Adélie (Antarctica) in relation to disturbance

International audience Mega-benthic assemblages have been analyzed off Terre Adélie (East Antarctica) between 20 and 110 m depth by seabed videography. The study area is dominated by high abundances of sessile suspension feeders, however, sponges are rare at this depth. There are hints and evidence...

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Bibliographic Details
Published in:Polar Biology
Main Authors: Gutt, Julian, Koubbi, Philippe, Eléaume, Marc
Other Authors: Biologie des organismes marins et écosystèmes (BOME), Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)
Format: Article in Journal/Newspaper
Language:English
Published: HAL CCSD 2007
Subjects:
Intermediate-disturbance hypothesis
Sea-bed video
Assemblages
Iceberg scouring
Suspension feeders
[SDV.BID]Life Sciences [q-bio]/Biodiversity
East Antarctica
Terre Adélie
Terre-Adélie
Antarc*
Antarctica
Polar Biology
Online Access:https://hal.science/hal-00248387
https://doi.org/10.1007/s00300-007-0293-z
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Summary:International audience Mega-benthic assemblages have been analyzed off Terre Adélie (East Antarctica) between 20 and 110 m depth by seabed videography. The study area is dominated by high abundances of sessile suspension feeders, however, sponges are rare at this depth. There are hints and evidence that different levels of disturbance and biological dynamics affect these assemblages. Biodiversity results are interpreted with the background of an applicability of the intermediate-disturbance hypothesis (IDH)

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