Environmental setting of deep-water oysters in the Bay of Biscay
We report the northernmost and deepest known occurrence of deep-water pycnodontine oysters based on two surveys along the French Atlantic continental margin to the La Chapelle continental slope (2006) and the Guilvinec Canyon (2008) The combined use of multibeam bathymetry seismic profiling CTD cast...
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Online Access: | https://archimer.ifremer.fr/doc/00023/13419/14034.pdf https://doi.org/10.1016/j.dsr.2010.09.002 https://archimer.ifremer.fr/doc/00023/13419/ |
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ftarchimer:oai:archimer.ifremer.fr:13419 2023-05-15T17:35:20+02:00 Environmental setting of deep-water oysters in the Bay of Biscay Van Rooij, David De Mol, L. Le Guilloux, Erwan Wisshak, M. Huvenne, V. A. I. Moeremans, R. Henriet, Jean-pierre 2010-12 application/pdf https://archimer.ifremer.fr/doc/00023/13419/14034.pdf https://doi.org/10.1016/j.dsr.2010.09.002 https://archimer.ifremer.fr/doc/00023/13419/ eng eng Pergamon-elsevier Science Ltd https://archimer.ifremer.fr/doc/00023/13419/14034.pdf doi:10.1016/j.dsr.2010.09.002 https://archimer.ifremer.fr/doc/00023/13419/ 2010 Elsevier Ltd All rights reserved. info:eu-repo/semantics/openAccess restricted use Deep-sea Research Part I-oceanographic Research Papers (0967-0637) (Pergamon-elsevier Science Ltd), 2010-12 , Vol. 57 , N. 12 , P. 1561-1572 Bay of Biscay Deep water oysters Canyons Habitat Resuspension MOW Neopycnodonte zibrowii text Publication info:eu-repo/semantics/article 2010 ftarchimer https://doi.org/10.1016/j.dsr.2010.09.002 2021-09-23T20:18:59Z We report the northernmost and deepest known occurrence of deep-water pycnodontine oysters based on two surveys along the French Atlantic continental margin to the La Chapelle continental slope (2006) and the Guilvinec Canyon (2008) The combined use of multibeam bathymetry seismic profiling CTD casts and a remotely operated vehicle (ROV) made it possible to describe the physical habitat and to assess the oceanographic control for the recently described species Neopycnodonte zibrowii These oysters have been observed in vivo in depths from 540 to 846 m colonizing overhanging banks or escarpments protruding from steep canyon flanks Especially in the Bay of Biscay such physical habitats may only be observed within canyons where they are created by both long-term turbiditic and contouritic processes Frequent observations of sand ripples on the seabed indicate the presence of a steady but enhanced bottom current of about 40 cm/s The occurrence of oysters also coincides with the Interface between the Eastern North Atlantic Water and the Mediterranean Outflow Water A combination of this water mass mixing internal tide generation and a strong primary surface productivity may generate an enhanced nutrient flux which is funnelled through the canyon When the ideal environmental conditions are met up to 100 individuals per m(2) may be observed These deep-water oysters require a vertical habitat which is often incompatible with the requirements of other sessile organisms and are only sparsely distributed along the continental margins The discovery of these giant oyster banks illustrates the rich biodiversity of deep-sea canyons and their underestimation as true ecosystem hotspots (C) 2010 Elsevier Ltd All rights reserved Article in Journal/Newspaper North Atlantic Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) Deep Sea Research Part I: Oceanographic Research Papers 57 12 1561 1572 |
institution |
Open Polar |
collection |
Archimer (Archive Institutionnelle de l'Ifremer - Institut français de recherche pour l'exploitation de la mer) |
op_collection_id |
ftarchimer |
language |
English |
topic |
Bay of Biscay Deep water oysters Canyons Habitat Resuspension MOW Neopycnodonte zibrowii |
spellingShingle |
Bay of Biscay Deep water oysters Canyons Habitat Resuspension MOW Neopycnodonte zibrowii Van Rooij, David De Mol, L. Le Guilloux, Erwan Wisshak, M. Huvenne, V. A. I. Moeremans, R. Henriet, Jean-pierre Environmental setting of deep-water oysters in the Bay of Biscay |
topic_facet |
Bay of Biscay Deep water oysters Canyons Habitat Resuspension MOW Neopycnodonte zibrowii |
description |
We report the northernmost and deepest known occurrence of deep-water pycnodontine oysters based on two surveys along the French Atlantic continental margin to the La Chapelle continental slope (2006) and the Guilvinec Canyon (2008) The combined use of multibeam bathymetry seismic profiling CTD casts and a remotely operated vehicle (ROV) made it possible to describe the physical habitat and to assess the oceanographic control for the recently described species Neopycnodonte zibrowii These oysters have been observed in vivo in depths from 540 to 846 m colonizing overhanging banks or escarpments protruding from steep canyon flanks Especially in the Bay of Biscay such physical habitats may only be observed within canyons where they are created by both long-term turbiditic and contouritic processes Frequent observations of sand ripples on the seabed indicate the presence of a steady but enhanced bottom current of about 40 cm/s The occurrence of oysters also coincides with the Interface between the Eastern North Atlantic Water and the Mediterranean Outflow Water A combination of this water mass mixing internal tide generation and a strong primary surface productivity may generate an enhanced nutrient flux which is funnelled through the canyon When the ideal environmental conditions are met up to 100 individuals per m(2) may be observed These deep-water oysters require a vertical habitat which is often incompatible with the requirements of other sessile organisms and are only sparsely distributed along the continental margins The discovery of these giant oyster banks illustrates the rich biodiversity of deep-sea canyons and their underestimation as true ecosystem hotspots (C) 2010 Elsevier Ltd All rights reserved |
format |
Article in Journal/Newspaper |
author |
Van Rooij, David De Mol, L. Le Guilloux, Erwan Wisshak, M. Huvenne, V. A. I. Moeremans, R. Henriet, Jean-pierre |
author_facet |
Van Rooij, David De Mol, L. Le Guilloux, Erwan Wisshak, M. Huvenne, V. A. I. Moeremans, R. Henriet, Jean-pierre |
author_sort |
Van Rooij, David |
title |
Environmental setting of deep-water oysters in the Bay of Biscay |
title_short |
Environmental setting of deep-water oysters in the Bay of Biscay |
title_full |
Environmental setting of deep-water oysters in the Bay of Biscay |
title_fullStr |
Environmental setting of deep-water oysters in the Bay of Biscay |
title_full_unstemmed |
Environmental setting of deep-water oysters in the Bay of Biscay |
title_sort |
environmental setting of deep-water oysters in the bay of biscay |
publisher |
Pergamon-elsevier Science Ltd |
publishDate |
2010 |
url |
https://archimer.ifremer.fr/doc/00023/13419/14034.pdf https://doi.org/10.1016/j.dsr.2010.09.002 https://archimer.ifremer.fr/doc/00023/13419/ |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Deep-sea Research Part I-oceanographic Research Papers (0967-0637) (Pergamon-elsevier Science Ltd), 2010-12 , Vol. 57 , N. 12 , P. 1561-1572 |
op_relation |
https://archimer.ifremer.fr/doc/00023/13419/14034.pdf doi:10.1016/j.dsr.2010.09.002 https://archimer.ifremer.fr/doc/00023/13419/ |
op_rights |
2010 Elsevier Ltd All rights reserved. info:eu-repo/semantics/openAccess restricted use |
op_doi |
https://doi.org/10.1016/j.dsr.2010.09.002 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
57 |
container_issue |
12 |
container_start_page |
1561 |
op_container_end_page |
1572 |
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1766134467942940672 |