First insights into the biodiversity and biogeography of the Southern Ocean deep sea.
Shallow marine benthic communities around Antarctica show high levels of endemism, gigantism, slow growth, longevity and late maturity, as well as adaptive radiations that have generated considerable biodiversity in some taxa. The deeper parts of the Southern Ocean exhibit some unique environmental...
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ftunivbruxelles:oai:dipot.ulb.ac.be:2013/135511 2023-05-15T13:32:11+02:00 First insights into the biodiversity and biogeography of the Southern Ocean deep sea. Brandt, Angelika Gooday, Andrew J Brandão, Simone N Brix, Saskia Brökeland, Wiebke Cedhagen, Tomas Choudhury, Madhumita Cornelius, Nils Danis, Bruno De Mesel, Ilse Diaz, Robert J Gillan, David C Ebbe, Brigitte Howe, John A Janussen, Dorte Kaiser, Stefanie Linse, Katrin Malyutina, Marina Pawlowski, Jan Raupach, Michael Vanreusel, Ann 2007-05 No full-text files http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/135511 en eng uri/info:doi/10.1038/nature05827 uri/info:pii/nature05827 uri/info:pmid/17507981 uri/info:scp/34249095209 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/135511 Nature (London), 447 (7142 Sciences exactes et naturelles Animals Antarctic Regions Biodiversity Geography Invertebrates -- classification -- physiology Marine Biology Oceans and Seas Phylogeny Seawater info:eu-repo/semantics/article info:ulb-repo/semantics/articlePeerReview info:ulb-repo/semantics/openurl/article 2007 ftunivbruxelles 2022-06-12T20:51:35Z Shallow marine benthic communities around Antarctica show high levels of endemism, gigantism, slow growth, longevity and late maturity, as well as adaptive radiations that have generated considerable biodiversity in some taxa. The deeper parts of the Southern Ocean exhibit some unique environmental features, including a very deep continental shelf and a weakly stratified water column, and are the source for much of the deep water in the world ocean. These features suggest that deep-sea faunas around the Antarctic may be related both to adjacent shelf communities and to those in other oceans. Unlike shallow-water Antarctic benthic communities, however, little is known about life in this vast deep-sea region. Here, we report new data from recent sampling expeditions in the deep Weddell Sea and adjacent areas (748-6,348 m water depth) that reveal high levels of new biodiversity; for example, 674 isopods species, of which 585 were new to science. Bathymetric and biogeographic trends varied between taxa. In groups such as the isopods and polychaetes, slope assemblages included species that have invaded from the shelf. In other taxa, the shelf and slope assemblages were more distinct. Abyssal faunas tended to have stronger links to other oceans, particularly the Atlantic, but mainly in taxa with good dispersal capabilities, such as the Foraminifera. The isopods, ostracods and nematodes, which are poor dispersers, include many species currently known only from the Southern Ocean. Our findings challenge suggestions that deep-sea diversity is depressed in the Southern Ocean and provide a basis for exploring the evolutionary significance of the varied biogeographic patterns observed in this remote environment. Journal Article Research Support, Non-U.S. Gov't SCOPUS: ar.j info:eu-repo/semantics/published Article in Journal/Newspaper Antarc* Antarctic Antarctica Southern Ocean Weddell Sea DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) Antarctic Southern Ocean The Antarctic Weddell Weddell Sea |
institution |
Open Polar |
collection |
DI-fusion : dépôt institutionnel de l'Université libre de Bruxelles (ULB) |
op_collection_id |
ftunivbruxelles |
language |
English |
topic |
Sciences exactes et naturelles Animals Antarctic Regions Biodiversity Geography Invertebrates -- classification -- physiology Marine Biology Oceans and Seas Phylogeny Seawater |
spellingShingle |
Sciences exactes et naturelles Animals Antarctic Regions Biodiversity Geography Invertebrates -- classification -- physiology Marine Biology Oceans and Seas Phylogeny Seawater Brandt, Angelika Gooday, Andrew J Brandão, Simone N Brix, Saskia Brökeland, Wiebke Cedhagen, Tomas Choudhury, Madhumita Cornelius, Nils Danis, Bruno De Mesel, Ilse Diaz, Robert J Gillan, David C Ebbe, Brigitte Howe, John A Janussen, Dorte Kaiser, Stefanie Linse, Katrin Malyutina, Marina Pawlowski, Jan Raupach, Michael Vanreusel, Ann First insights into the biodiversity and biogeography of the Southern Ocean deep sea. |
topic_facet |
Sciences exactes et naturelles Animals Antarctic Regions Biodiversity Geography Invertebrates -- classification -- physiology Marine Biology Oceans and Seas Phylogeny Seawater |
description |
Shallow marine benthic communities around Antarctica show high levels of endemism, gigantism, slow growth, longevity and late maturity, as well as adaptive radiations that have generated considerable biodiversity in some taxa. The deeper parts of the Southern Ocean exhibit some unique environmental features, including a very deep continental shelf and a weakly stratified water column, and are the source for much of the deep water in the world ocean. These features suggest that deep-sea faunas around the Antarctic may be related both to adjacent shelf communities and to those in other oceans. Unlike shallow-water Antarctic benthic communities, however, little is known about life in this vast deep-sea region. Here, we report new data from recent sampling expeditions in the deep Weddell Sea and adjacent areas (748-6,348 m water depth) that reveal high levels of new biodiversity; for example, 674 isopods species, of which 585 were new to science. Bathymetric and biogeographic trends varied between taxa. In groups such as the isopods and polychaetes, slope assemblages included species that have invaded from the shelf. In other taxa, the shelf and slope assemblages were more distinct. Abyssal faunas tended to have stronger links to other oceans, particularly the Atlantic, but mainly in taxa with good dispersal capabilities, such as the Foraminifera. The isopods, ostracods and nematodes, which are poor dispersers, include many species currently known only from the Southern Ocean. Our findings challenge suggestions that deep-sea diversity is depressed in the Southern Ocean and provide a basis for exploring the evolutionary significance of the varied biogeographic patterns observed in this remote environment. Journal Article Research Support, Non-U.S. Gov't SCOPUS: ar.j info:eu-repo/semantics/published |
format |
Article in Journal/Newspaper |
author |
Brandt, Angelika Gooday, Andrew J Brandão, Simone N Brix, Saskia Brökeland, Wiebke Cedhagen, Tomas Choudhury, Madhumita Cornelius, Nils Danis, Bruno De Mesel, Ilse Diaz, Robert J Gillan, David C Ebbe, Brigitte Howe, John A Janussen, Dorte Kaiser, Stefanie Linse, Katrin Malyutina, Marina Pawlowski, Jan Raupach, Michael Vanreusel, Ann |
author_facet |
Brandt, Angelika Gooday, Andrew J Brandão, Simone N Brix, Saskia Brökeland, Wiebke Cedhagen, Tomas Choudhury, Madhumita Cornelius, Nils Danis, Bruno De Mesel, Ilse Diaz, Robert J Gillan, David C Ebbe, Brigitte Howe, John A Janussen, Dorte Kaiser, Stefanie Linse, Katrin Malyutina, Marina Pawlowski, Jan Raupach, Michael Vanreusel, Ann |
author_sort |
Brandt, Angelika |
title |
First insights into the biodiversity and biogeography of the Southern Ocean deep sea. |
title_short |
First insights into the biodiversity and biogeography of the Southern Ocean deep sea. |
title_full |
First insights into the biodiversity and biogeography of the Southern Ocean deep sea. |
title_fullStr |
First insights into the biodiversity and biogeography of the Southern Ocean deep sea. |
title_full_unstemmed |
First insights into the biodiversity and biogeography of the Southern Ocean deep sea. |
title_sort |
first insights into the biodiversity and biogeography of the southern ocean deep sea. |
publishDate |
2007 |
url |
http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/135511 |
geographic |
Antarctic Southern Ocean The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic Southern Ocean The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Antarctica Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctica Southern Ocean Weddell Sea |
op_source |
Nature (London), 447 (7142 |
op_relation |
uri/info:doi/10.1038/nature05827 uri/info:pii/nature05827 uri/info:pmid/17507981 uri/info:scp/34249095209 http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/135511 |
_version_ |
1766024903728824320 |