Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory
Although sulfur is an essential element for marine primary production and critical for climate processes, little is known about the oceanic pool of nonvolatile dissolved organic sulfur (DOS). We present a basin-scale distribution of solid-phase extractable DOS in the East Atlantic Ocean and the Atla...
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American Association for the Advancement of Science (AAAS)
2016
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Online Access: | https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=18121 https://doi.org/10.1126/science.aaf7796 |
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ftufz:oai:ufz.de:18121 2023-12-10T09:53:56+01:00 Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory Ksionzek, K.B. Lechtenfeld, Oliver McCallister, S.L. Schmitt-Kopplin, P. Geuer, J.K. Geibert, W. Koch, B.P. 2016-10-06 application/pdf https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=18121 https://doi.org/10.1126/science.aaf7796 en eng American Association for the Advancement of Science (AAAS) Science 354 (6311);; 456 - 459 https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=18121 https://dx.doi.org/10.1126/science.aaf7796 info:eu-repo/semantics/closedAccess ISSN: 0036-8075 info:eu-repo/semantics/article https://purl.org/dc/dcmitype/Text 2016 ftufz https://doi.org/10.1126/science.aaf7796 2023-11-12T23:34:05Z Although sulfur is an essential element for marine primary production and critical for climate processes, little is known about the oceanic pool of nonvolatile dissolved organic sulfur (DOS). We present a basin-scale distribution of solid-phase extractable DOS in the East Atlantic Ocean and the Atlantic sector of the Southern Ocean. Although molar DOS versus dissolved organic nitrogen (DON) ratios of 0.11 ± 0.024 in Atlantic surface water resembled phytoplankton stoichiometry (sulfur/nitrogen ~ 0.08), increasing dissolved organic carbon (DOC) versus DOS ratios and decreasing methionine-S yield demonstrated selective DOS removal and active involvement in marine biogeochemical cycles. Based on stoichiometric estimates, the minimum global inventory of marine DOS is 6.7 petagrams of sulfur, exceeding all other marine organic sulfur reservoirs by an order of magnitude. Article in Journal/Newspaper Southern Ocean UFZ - Publication Index (Helmholtz-Centre for Environmental Research) Southern Ocean Science 354 6311 456 459 |
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Open Polar |
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UFZ - Publication Index (Helmholtz-Centre for Environmental Research) |
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ftufz |
language |
English |
description |
Although sulfur is an essential element for marine primary production and critical for climate processes, little is known about the oceanic pool of nonvolatile dissolved organic sulfur (DOS). We present a basin-scale distribution of solid-phase extractable DOS in the East Atlantic Ocean and the Atlantic sector of the Southern Ocean. Although molar DOS versus dissolved organic nitrogen (DON) ratios of 0.11 ± 0.024 in Atlantic surface water resembled phytoplankton stoichiometry (sulfur/nitrogen ~ 0.08), increasing dissolved organic carbon (DOC) versus DOS ratios and decreasing methionine-S yield demonstrated selective DOS removal and active involvement in marine biogeochemical cycles. Based on stoichiometric estimates, the minimum global inventory of marine DOS is 6.7 petagrams of sulfur, exceeding all other marine organic sulfur reservoirs by an order of magnitude. |
format |
Article in Journal/Newspaper |
author |
Ksionzek, K.B. Lechtenfeld, Oliver McCallister, S.L. Schmitt-Kopplin, P. Geuer, J.K. Geibert, W. Koch, B.P. |
spellingShingle |
Ksionzek, K.B. Lechtenfeld, Oliver McCallister, S.L. Schmitt-Kopplin, P. Geuer, J.K. Geibert, W. Koch, B.P. Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory |
author_facet |
Ksionzek, K.B. Lechtenfeld, Oliver McCallister, S.L. Schmitt-Kopplin, P. Geuer, J.K. Geibert, W. Koch, B.P. |
author_sort |
Ksionzek, K.B. |
title |
Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory |
title_short |
Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory |
title_full |
Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory |
title_fullStr |
Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory |
title_full_unstemmed |
Dissolved organic sulfur in the ocean: Biogeochemistry of a petagram inventory |
title_sort |
dissolved organic sulfur in the ocean: biogeochemistry of a petagram inventory |
publisher |
American Association for the Advancement of Science (AAAS) |
publishDate |
2016 |
url |
https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=18121 https://doi.org/10.1126/science.aaf7796 |
geographic |
Southern Ocean |
geographic_facet |
Southern Ocean |
genre |
Southern Ocean |
genre_facet |
Southern Ocean |
op_source |
ISSN: 0036-8075 |
op_relation |
https://www.ufz.de/index.php?en=20939&ufzPublicationIdentifier=18121 https://dx.doi.org/10.1126/science.aaf7796 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1126/science.aaf7796 |
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Science |
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354 |
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6311 |
container_start_page |
456 |
op_container_end_page |
459 |
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1784901118616141824 |