Bacterial productivity and organic matter flux in the Southern Ocean and in the Antarctic Intermediate Water and Mode Water of the Indian Ocean
Bacterial biomass production in the water column across the Antarctic Circumpolar Current in the Crozet Basin was determined to estimate the flux of organic carbon through bacteria. South of the Subantarctic Front and Subtropical Front (SAF-STF) zone, bacterial growth was greatest at the surface and...
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Language: | English |
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1997
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ftunivqespace:oai:espace.library.uq.edu.au:UQ:3465440 2023-05-15T13:48:01+02:00 Bacterial productivity and organic matter flux in the Southern Ocean and in the Antarctic Intermediate Water and Mode Water of the Indian Ocean Moriarty, D. J.W. Bianchi, M. Talbot, V. 1997-01-01 https://espace.library.uq.edu.au/view/UQ:3465440 eng eng Elsevier BV doi:10.1016/S0967-0645(96)00110-5 issn:0967-0645 orcid:0000-0002-9360-5556 Oceanography 1910 Oceanography Journal Article 1997 ftunivqespace https://doi.org/10.1016/S0967-0645(96)00110-5 2020-08-06T15:18:42Z Bacterial biomass production in the water column across the Antarctic Circumpolar Current in the Crozet Basin was determined to estimate the flux of organic carbon through bacteria. South of the Subantarctic Front and Subtropical Front (SAF-STF) zone, bacterial growth was greatest at the surface and decreased exponentially in the deep layers. North of the frontal zone, however, growth was high at the surface and decreased exponentially to 400 m, but then was greater in Mode Water at 500 m and in the Antarctic Intermediate Water (AAIW) at 1250 m. This indicates that the water masses sinking in the frontal zone and being advected towards the equator from the Southern Ocean contain labile organic matter. The paradigm that the major source of organic carbon in the interior of the oceans is due to vertical sinking of particles may need to be changed to include horizontal advection for long distances and perhaps long time scales, at least in the major oceans south of the equator. Article in Journal/Newspaper Antarc* Antarctic Southern Ocean The University of Queensland: UQ eSpace Antarctic Indian Southern Ocean The Antarctic Deep Sea Research Part II: Topical Studies in Oceanography 44 5 1005 1015 |
institution |
Open Polar |
collection |
The University of Queensland: UQ eSpace |
op_collection_id |
ftunivqespace |
language |
English |
topic |
Oceanography 1910 Oceanography |
spellingShingle |
Oceanography 1910 Oceanography Moriarty, D. J.W. Bianchi, M. Talbot, V. Bacterial productivity and organic matter flux in the Southern Ocean and in the Antarctic Intermediate Water and Mode Water of the Indian Ocean |
topic_facet |
Oceanography 1910 Oceanography |
description |
Bacterial biomass production in the water column across the Antarctic Circumpolar Current in the Crozet Basin was determined to estimate the flux of organic carbon through bacteria. South of the Subantarctic Front and Subtropical Front (SAF-STF) zone, bacterial growth was greatest at the surface and decreased exponentially in the deep layers. North of the frontal zone, however, growth was high at the surface and decreased exponentially to 400 m, but then was greater in Mode Water at 500 m and in the Antarctic Intermediate Water (AAIW) at 1250 m. This indicates that the water masses sinking in the frontal zone and being advected towards the equator from the Southern Ocean contain labile organic matter. The paradigm that the major source of organic carbon in the interior of the oceans is due to vertical sinking of particles may need to be changed to include horizontal advection for long distances and perhaps long time scales, at least in the major oceans south of the equator. |
format |
Article in Journal/Newspaper |
author |
Moriarty, D. J.W. Bianchi, M. Talbot, V. |
author_facet |
Moriarty, D. J.W. Bianchi, M. Talbot, V. |
author_sort |
Moriarty, D. J.W. |
title |
Bacterial productivity and organic matter flux in the Southern Ocean and in the Antarctic Intermediate Water and Mode Water of the Indian Ocean |
title_short |
Bacterial productivity and organic matter flux in the Southern Ocean and in the Antarctic Intermediate Water and Mode Water of the Indian Ocean |
title_full |
Bacterial productivity and organic matter flux in the Southern Ocean and in the Antarctic Intermediate Water and Mode Water of the Indian Ocean |
title_fullStr |
Bacterial productivity and organic matter flux in the Southern Ocean and in the Antarctic Intermediate Water and Mode Water of the Indian Ocean |
title_full_unstemmed |
Bacterial productivity and organic matter flux in the Southern Ocean and in the Antarctic Intermediate Water and Mode Water of the Indian Ocean |
title_sort |
bacterial productivity and organic matter flux in the southern ocean and in the antarctic intermediate water and mode water of the indian ocean |
publisher |
Elsevier BV |
publishDate |
1997 |
url |
https://espace.library.uq.edu.au/view/UQ:3465440 |
geographic |
Antarctic Indian Southern Ocean The Antarctic |
geographic_facet |
Antarctic Indian Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Southern Ocean |
genre_facet |
Antarc* Antarctic Southern Ocean |
op_relation |
doi:10.1016/S0967-0645(96)00110-5 issn:0967-0645 orcid:0000-0002-9360-5556 |
op_doi |
https://doi.org/10.1016/S0967-0645(96)00110-5 |
container_title |
Deep Sea Research Part II: Topical Studies in Oceanography |
container_volume |
44 |
container_issue |
5 |
container_start_page |
1005 |
op_container_end_page |
1015 |
_version_ |
1766248429731708928 |