Recycling of organic matter in Antarctic sediments: A transect through the polar front in the Southern Ocean (Indian Sector)
Sediments from the Polar Front Zone were sampled in the Indian Sector of the Antarctic Ocean as part of the French JGOFS expedition Antares 1. The first porewater distributions of O 2 and NO 3 = and organic carbon data in the solid phase in this part of the ocean were used to model the recycling of...
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Format: | Article in Journal/Newspaper |
Language: | English |
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1998
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crwiley:10.4319/lo.1998.43.3.0420 2023-12-03T10:13:38+01:00 Recycling of organic matter in Antarctic sediments: A transect through the polar front in the Southern Ocean (Indian Sector) Rabouille, Christophe Gaillard, Jean‐Francois Relexans, Jean‐Claude Tréguer, Paul Vincendeau, Marie‐Anne 1998 http://dx.doi.org/10.4319/lo.1998.43.3.0420 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.1998.43.3.0420 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.1998.43.3.0420 en eng Wiley http://onlinelibrary.wiley.com/termsAndConditions#vor Limnology and Oceanography volume 43, issue 3, page 420-432 ISSN 0024-3590 1939-5590 Aquatic Science Oceanography journal-article 1998 crwiley https://doi.org/10.4319/lo.1998.43.3.0420 2023-11-09T14:23:58Z Sediments from the Polar Front Zone were sampled in the Indian Sector of the Antarctic Ocean as part of the French JGOFS expedition Antares 1. The first porewater distributions of O 2 and NO 3 = and organic carbon data in the solid phase in this part of the ocean were used to model the recycling of organic matter in sediments. The data are described by a model containing two types of degradable organic matter with distinct reactivities. We estimate that the reactivity of the most labile organic carbon is very close to that of fresh organic matter with an average C : N ratio of 7. We estimate that particulate organic carbon fluxes deposited at the sediment‐water interface range between 0.2 and 0.8 mol C m −l y −l , with two peaks near the Polar Front and the Subantarctic Front. The flux 01 organic carbon deposited at the sediment‐water interface is unusually high and represents ˜10–20% of estimated primary production. From these findings, we conclude that production in the pelagic zone of this region is strongly linked to deposition and recycling in the sediment. Article in Journal/Newspaper Antarc* Antarctic Antarctic Ocean Southern Ocean Wiley Online Library (via Crossref) Antarctic Southern Ocean The Antarctic Indian Antarctic Ocean Limnology and Oceanography 43 3 420 432 |
institution |
Open Polar |
collection |
Wiley Online Library (via Crossref) |
op_collection_id |
crwiley |
language |
English |
topic |
Aquatic Science Oceanography |
spellingShingle |
Aquatic Science Oceanography Rabouille, Christophe Gaillard, Jean‐Francois Relexans, Jean‐Claude Tréguer, Paul Vincendeau, Marie‐Anne Recycling of organic matter in Antarctic sediments: A transect through the polar front in the Southern Ocean (Indian Sector) |
topic_facet |
Aquatic Science Oceanography |
description |
Sediments from the Polar Front Zone were sampled in the Indian Sector of the Antarctic Ocean as part of the French JGOFS expedition Antares 1. The first porewater distributions of O 2 and NO 3 = and organic carbon data in the solid phase in this part of the ocean were used to model the recycling of organic matter in sediments. The data are described by a model containing two types of degradable organic matter with distinct reactivities. We estimate that the reactivity of the most labile organic carbon is very close to that of fresh organic matter with an average C : N ratio of 7. We estimate that particulate organic carbon fluxes deposited at the sediment‐water interface range between 0.2 and 0.8 mol C m −l y −l , with two peaks near the Polar Front and the Subantarctic Front. The flux 01 organic carbon deposited at the sediment‐water interface is unusually high and represents ˜10–20% of estimated primary production. From these findings, we conclude that production in the pelagic zone of this region is strongly linked to deposition and recycling in the sediment. |
format |
Article in Journal/Newspaper |
author |
Rabouille, Christophe Gaillard, Jean‐Francois Relexans, Jean‐Claude Tréguer, Paul Vincendeau, Marie‐Anne |
author_facet |
Rabouille, Christophe Gaillard, Jean‐Francois Relexans, Jean‐Claude Tréguer, Paul Vincendeau, Marie‐Anne |
author_sort |
Rabouille, Christophe |
title |
Recycling of organic matter in Antarctic sediments: A transect through the polar front in the Southern Ocean (Indian Sector) |
title_short |
Recycling of organic matter in Antarctic sediments: A transect through the polar front in the Southern Ocean (Indian Sector) |
title_full |
Recycling of organic matter in Antarctic sediments: A transect through the polar front in the Southern Ocean (Indian Sector) |
title_fullStr |
Recycling of organic matter in Antarctic sediments: A transect through the polar front in the Southern Ocean (Indian Sector) |
title_full_unstemmed |
Recycling of organic matter in Antarctic sediments: A transect through the polar front in the Southern Ocean (Indian Sector) |
title_sort |
recycling of organic matter in antarctic sediments: a transect through the polar front in the southern ocean (indian sector) |
publisher |
Wiley |
publishDate |
1998 |
url |
http://dx.doi.org/10.4319/lo.1998.43.3.0420 https://api.wiley.com/onlinelibrary/tdm/v1/articles/10.4319%2Flo.1998.43.3.0420 https://aslopubs.onlinelibrary.wiley.com/doi/pdf/10.4319/lo.1998.43.3.0420 |
geographic |
Antarctic Southern Ocean The Antarctic Indian Antarctic Ocean |
geographic_facet |
Antarctic Southern Ocean The Antarctic Indian Antarctic Ocean |
genre |
Antarc* Antarctic Antarctic Ocean Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Ocean Southern Ocean |
op_source |
Limnology and Oceanography volume 43, issue 3, page 420-432 ISSN 0024-3590 1939-5590 |
op_rights |
http://onlinelibrary.wiley.com/termsAndConditions#vor |
op_doi |
https://doi.org/10.4319/lo.1998.43.3.0420 |
container_title |
Limnology and Oceanography |
container_volume |
43 |
container_issue |
3 |
container_start_page |
420 |
op_container_end_page |
432 |
_version_ |
1784260472056315904 |