The discovery of new deep-sea hydrothermal vent communities in the Southern Ocean and implications for biogeography
Autor(a) principal: | |
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Data de Publicação: | 2012 |
Outros Autores: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
Texto Completo: | http://hdl.handle.net/10773/6526 |
Resumo: | Since the first discovery of deep-sea hydrothermal vents along the Galápagos Rift in 1977, numerous vent sites and endemic faunal assemblages have been found along mid-ocean ridges and back-arc basins at low to mid latitudes. These discoveries have suggested the existence of separate biogeographic provinces in the Atlantic and the North West Pacific, the existence of a province including the South West Pacific and Indian Ocean, and a separation of the North East Pacific, North East Pacific Rise, and South East Pacific Rise. The Southern Ocean is known to be a region of high deep-sea species diversity and centre of origin for the global deep-sea fauna. It has also been proposed as a gateway connecting hydrothermal vents in different oceans but is little explored because of extreme conditions. Since 2009 we have explored two segments of the East Scotia Ridge (ESR) in the Southern Ocean using a remotely operated vehicle. In each segment we located deep-sea hydrothermal vents hosting high-temperature black smokers up to 382.8°C and diffuse venting. The chemosynthetic ecosystems hosted by these vents are dominated by a new yeti crab (Kiwa n. sp.), stalked barnacles, limpets, peltospiroid gastropods, anemones, and a predatory sea star. Taxa abundant in vent ecosystems in other oceans, including polychaete worms (Siboglinidae), bathymodiolid mussels, and alvinocaridid shrimps, are absent from the ESR vents. These groups, except the Siboglinidae, possess planktotrophic larvae, rare in Antarctic marine invertebrates, suggesting that the environmental conditions of the Southern Ocean may act as a dispersal filter for vent taxa. Evidence from the distinctive fauna, the unique community structure, and multivariate analyses suggest that the Antarctic vent ecosystems represent a new vent biogeographic province. However, multivariate analyses of species present at the ESR and at other deep-sea hydrothermal vents globally indicate that vent biogeography is more complex than previously recognised. |
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The discovery of new deep-sea hydrothermal vent communities in the Southern Ocean and implications for biogeographySince the first discovery of deep-sea hydrothermal vents along the Galápagos Rift in 1977, numerous vent sites and endemic faunal assemblages have been found along mid-ocean ridges and back-arc basins at low to mid latitudes. These discoveries have suggested the existence of separate biogeographic provinces in the Atlantic and the North West Pacific, the existence of a province including the South West Pacific and Indian Ocean, and a separation of the North East Pacific, North East Pacific Rise, and South East Pacific Rise. The Southern Ocean is known to be a region of high deep-sea species diversity and centre of origin for the global deep-sea fauna. It has also been proposed as a gateway connecting hydrothermal vents in different oceans but is little explored because of extreme conditions. Since 2009 we have explored two segments of the East Scotia Ridge (ESR) in the Southern Ocean using a remotely operated vehicle. In each segment we located deep-sea hydrothermal vents hosting high-temperature black smokers up to 382.8°C and diffuse venting. The chemosynthetic ecosystems hosted by these vents are dominated by a new yeti crab (Kiwa n. sp.), stalked barnacles, limpets, peltospiroid gastropods, anemones, and a predatory sea star. Taxa abundant in vent ecosystems in other oceans, including polychaete worms (Siboglinidae), bathymodiolid mussels, and alvinocaridid shrimps, are absent from the ESR vents. These groups, except the Siboglinidae, possess planktotrophic larvae, rare in Antarctic marine invertebrates, suggesting that the environmental conditions of the Southern Ocean may act as a dispersal filter for vent taxa. Evidence from the distinctive fauna, the unique community structure, and multivariate analyses suggest that the Antarctic vent ecosystems represent a new vent biogeographic province. However, multivariate analyses of species present at the ESR and at other deep-sea hydrothermal vents globally indicate that vent biogeography is more complex than previously recognised.Public Library of Science2012-02-16T14:43:18Z2012-01-03T00:00:00Z2012-01-03info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleapplication/pdfhttp://hdl.handle.net/10773/6526eng1544-917310.1371/journal.pbio.1001234Rogers, ADTyler, PAConnelly, DPCopley, JTJames, RHLarter, RDLinse, KMills, RANaveiro-Garabato, APancost, DPearce, DAPolunin, NVCGerman, CRShank, TAlker, BAquilina, ABennett, SAClark, ADinley, RJJGraham, AGCGreen, DRHHawkes, JAHepburn, LHilario, AHuvenne, VAI.,Marsh, LRamirez-Llodra, EReid, WDKRoterman, CNSweeting, CJThatje, SZwirglmaier, Kinfo:eu-repo/semantics/openAccessreponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos)instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãoinstacron:RCAAP2024-02-22T11:07:53Zoai:ria.ua.pt:10773/6526Portal AgregadorONGhttps://www.rcaap.pt/oai/openaireopendoar:71602024-03-20T02:43:22.108097Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informaçãofalse |
dc.title.none.fl_str_mv |
The discovery of new deep-sea hydrothermal vent communities in the Southern Ocean and implications for biogeography |
title |
The discovery of new deep-sea hydrothermal vent communities in the Southern Ocean and implications for biogeography |
spellingShingle |
The discovery of new deep-sea hydrothermal vent communities in the Southern Ocean and implications for biogeography Rogers, AD |
title_short |
The discovery of new deep-sea hydrothermal vent communities in the Southern Ocean and implications for biogeography |
title_full |
The discovery of new deep-sea hydrothermal vent communities in the Southern Ocean and implications for biogeography |
title_fullStr |
The discovery of new deep-sea hydrothermal vent communities in the Southern Ocean and implications for biogeography |
title_full_unstemmed |
The discovery of new deep-sea hydrothermal vent communities in the Southern Ocean and implications for biogeography |
title_sort |
The discovery of new deep-sea hydrothermal vent communities in the Southern Ocean and implications for biogeography |
author |
Rogers, AD |
author_facet |
Rogers, AD Tyler, PA Connelly, DP Copley, JT James, RH Larter, RD Linse, K Mills, RA Naveiro-Garabato, A Pancost, D Pearce, DA Polunin, NVC German, CR Shank, T Alker, B Aquilina, A Bennett, SA Clark, A Dinley, RJJ Graham, AGC Green, DRH Hawkes, JA Hepburn, L Hilario, A Huvenne, VAI., Marsh, L Ramirez-Llodra, E Reid, WDK Roterman, CN Sweeting, CJ Thatje, S Zwirglmaier, K |
author_role |
author |
author2 |
Tyler, PA Connelly, DP Copley, JT James, RH Larter, RD Linse, K Mills, RA Naveiro-Garabato, A Pancost, D Pearce, DA Polunin, NVC German, CR Shank, T Alker, B Aquilina, A Bennett, SA Clark, A Dinley, RJJ Graham, AGC Green, DRH Hawkes, JA Hepburn, L Hilario, A Huvenne, VAI., Marsh, L Ramirez-Llodra, E Reid, WDK Roterman, CN Sweeting, CJ Thatje, S Zwirglmaier, K |
author2_role |
author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author author |
dc.contributor.author.fl_str_mv |
Rogers, AD Tyler, PA Connelly, DP Copley, JT James, RH Larter, RD Linse, K Mills, RA Naveiro-Garabato, A Pancost, D Pearce, DA Polunin, NVC German, CR Shank, T Alker, B Aquilina, A Bennett, SA Clark, A Dinley, RJJ Graham, AGC Green, DRH Hawkes, JA Hepburn, L Hilario, A Huvenne, VAI., Marsh, L Ramirez-Llodra, E Reid, WDK Roterman, CN Sweeting, CJ Thatje, S Zwirglmaier, K |
description |
Since the first discovery of deep-sea hydrothermal vents along the Galápagos Rift in 1977, numerous vent sites and endemic faunal assemblages have been found along mid-ocean ridges and back-arc basins at low to mid latitudes. These discoveries have suggested the existence of separate biogeographic provinces in the Atlantic and the North West Pacific, the existence of a province including the South West Pacific and Indian Ocean, and a separation of the North East Pacific, North East Pacific Rise, and South East Pacific Rise. The Southern Ocean is known to be a region of high deep-sea species diversity and centre of origin for the global deep-sea fauna. It has also been proposed as a gateway connecting hydrothermal vents in different oceans but is little explored because of extreme conditions. Since 2009 we have explored two segments of the East Scotia Ridge (ESR) in the Southern Ocean using a remotely operated vehicle. In each segment we located deep-sea hydrothermal vents hosting high-temperature black smokers up to 382.8°C and diffuse venting. The chemosynthetic ecosystems hosted by these vents are dominated by a new yeti crab (Kiwa n. sp.), stalked barnacles, limpets, peltospiroid gastropods, anemones, and a predatory sea star. Taxa abundant in vent ecosystems in other oceans, including polychaete worms (Siboglinidae), bathymodiolid mussels, and alvinocaridid shrimps, are absent from the ESR vents. These groups, except the Siboglinidae, possess planktotrophic larvae, rare in Antarctic marine invertebrates, suggesting that the environmental conditions of the Southern Ocean may act as a dispersal filter for vent taxa. Evidence from the distinctive fauna, the unique community structure, and multivariate analyses suggest that the Antarctic vent ecosystems represent a new vent biogeographic province. However, multivariate analyses of species present at the ESR and at other deep-sea hydrothermal vents globally indicate that vent biogeography is more complex than previously recognised. |
publishDate |
2012 |
dc.date.none.fl_str_mv |
2012-02-16T14:43:18Z 2012-01-03T00:00:00Z 2012-01-03 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10773/6526 |
url |
http://hdl.handle.net/10773/6526 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
1544-9173 10.1371/journal.pbio.1001234 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Public Library of Science |
publisher.none.fl_str_mv |
Public Library of Science |
dc.source.none.fl_str_mv |
reponame:Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) instname:Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação instacron:RCAAP |
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Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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RCAAP |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) |
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Repositório Científico de Acesso Aberto de Portugal (Repositórios Cientìficos) - Agência para a Sociedade do Conhecimento (UMIC) - FCT - Sociedade da Informação |
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