Megabenthos habitats influenced by nearby hydrothermal activity on the Sandwich Plate, Southern Ocean
The Sandwich Plate is known as one of the tectonically most active regions in the Southern Ocean and Antarctica, characterised by a subsurface chain of active volcanic islands (the South Sandwich Arc), submarine volcanic features, an earthquake rich area along the South Sandwich Trench and hydrother...
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Online Access: | https://eprints.whiterose.ac.uk/184549/ https://eprints.whiterose.ac.uk/184549/1/Linse%20et%20al%20post%20review%20version.pdf |
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ftleedsuniv:oai:eprints.whiterose.ac.uk:184549 2024-04-28T08:00:30+00:00 Megabenthos habitats influenced by nearby hydrothermal activity on the Sandwich Plate, Southern Ocean Linse, K Römer, M Little, CTS Marcon, Y Bohrmann, G 2022-04 text https://eprints.whiterose.ac.uk/184549/ https://eprints.whiterose.ac.uk/184549/1/Linse%20et%20al%20post%20review%20version.pdf en eng Elsevier https://eprints.whiterose.ac.uk/184549/1/Linse%20et%20al%20post%20review%20version.pdf Linse, K, Römer, M, Little, CTS orcid.org/0000-0002-1917-4460 et al. (2 more authors) (2022) Megabenthos habitats influenced by nearby hydrothermal activity on the Sandwich Plate, Southern Ocean. Deep-Sea Research Part II: Topical Studies in Oceanography, 198. 105075. ISSN 0967-0645 cc_by_nc_nd_4 Article NonPeerReviewed 2022 ftleedsuniv 2024-04-03T14:03:53Z The Sandwich Plate is known as one of the tectonically most active regions in the Southern Ocean and Antarctica, characterised by a subsurface chain of active volcanic islands (the South Sandwich Arc), submarine volcanic features, an earthquake rich area along the South Sandwich Trench and hydrothermal vents on segments of the East Scotia Ridge. In 2013 and 2019 we investigated eight potential hydrothermally active sites in the forearc, island arc and back arc of the Sandwich Plate from shallow (60 m) to abyssal (3886 m) depths. All Protector Seamounts sites, Protector Shoal, Quest Caldera, and an unnamed submarine volcano, showed thermal anomalies, as did the East Scotia Ridge segment E5 back arc site. At Quest Caldera, chimney structures, bacterial mats and mineral precipitates were observed in a depression on the caldera rim. The investigated forearc sites showed hydroacoustic, but not temperature anomalies. None of the sites showed evidence of megafauna associated with hydrothermal venting or hydrocarbon seep sites, but did have evidence of both unexpectedly dense and sparse communities of Southern Ocean taxa in the vicinities of the anomalies. Overall, our investigations showed that the benthic habitats and communities of the Sandwich Plate are still barely known. Article in Journal/Newspaper Antarc* Antarctica Southern Ocean White Rose Research Online (Universities of Leeds, Sheffield & York) |
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Open Polar |
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White Rose Research Online (Universities of Leeds, Sheffield & York) |
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ftleedsuniv |
language |
English |
description |
The Sandwich Plate is known as one of the tectonically most active regions in the Southern Ocean and Antarctica, characterised by a subsurface chain of active volcanic islands (the South Sandwich Arc), submarine volcanic features, an earthquake rich area along the South Sandwich Trench and hydrothermal vents on segments of the East Scotia Ridge. In 2013 and 2019 we investigated eight potential hydrothermally active sites in the forearc, island arc and back arc of the Sandwich Plate from shallow (60 m) to abyssal (3886 m) depths. All Protector Seamounts sites, Protector Shoal, Quest Caldera, and an unnamed submarine volcano, showed thermal anomalies, as did the East Scotia Ridge segment E5 back arc site. At Quest Caldera, chimney structures, bacterial mats and mineral precipitates were observed in a depression on the caldera rim. The investigated forearc sites showed hydroacoustic, but not temperature anomalies. None of the sites showed evidence of megafauna associated with hydrothermal venting or hydrocarbon seep sites, but did have evidence of both unexpectedly dense and sparse communities of Southern Ocean taxa in the vicinities of the anomalies. Overall, our investigations showed that the benthic habitats and communities of the Sandwich Plate are still barely known. |
format |
Article in Journal/Newspaper |
author |
Linse, K Römer, M Little, CTS Marcon, Y Bohrmann, G |
spellingShingle |
Linse, K Römer, M Little, CTS Marcon, Y Bohrmann, G Megabenthos habitats influenced by nearby hydrothermal activity on the Sandwich Plate, Southern Ocean |
author_facet |
Linse, K Römer, M Little, CTS Marcon, Y Bohrmann, G |
author_sort |
Linse, K |
title |
Megabenthos habitats influenced by nearby hydrothermal activity on the Sandwich Plate, Southern Ocean |
title_short |
Megabenthos habitats influenced by nearby hydrothermal activity on the Sandwich Plate, Southern Ocean |
title_full |
Megabenthos habitats influenced by nearby hydrothermal activity on the Sandwich Plate, Southern Ocean |
title_fullStr |
Megabenthos habitats influenced by nearby hydrothermal activity on the Sandwich Plate, Southern Ocean |
title_full_unstemmed |
Megabenthos habitats influenced by nearby hydrothermal activity on the Sandwich Plate, Southern Ocean |
title_sort |
megabenthos habitats influenced by nearby hydrothermal activity on the sandwich plate, southern ocean |
publisher |
Elsevier |
publishDate |
2022 |
url |
https://eprints.whiterose.ac.uk/184549/ https://eprints.whiterose.ac.uk/184549/1/Linse%20et%20al%20post%20review%20version.pdf |
genre |
Antarc* Antarctica Southern Ocean |
genre_facet |
Antarc* Antarctica Southern Ocean |
op_relation |
https://eprints.whiterose.ac.uk/184549/1/Linse%20et%20al%20post%20review%20version.pdf Linse, K, Römer, M, Little, CTS orcid.org/0000-0002-1917-4460 et al. (2 more authors) (2022) Megabenthos habitats influenced by nearby hydrothermal activity on the Sandwich Plate, Southern Ocean. Deep-Sea Research Part II: Topical Studies in Oceanography, 198. 105075. ISSN 0967-0645 |
op_rights |
cc_by_nc_nd_4 |
_version_ |
1797572698185924608 |