Production of fluorescent dissolved organic matter in Arctic Ocean sediments
Published version. Source at http://doi.org/10.1038/srep39213 . License CC BY 4.0 . Little is known about the production of fluorescent dissolved organic matter (FDOM) in the anoxic oceanic sediments. In this study, sediment pore waters were sampled from four different sites in the Chukchi-East Sibe...
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ftunivtroemsoe:oai:munin.uit.no:10037/10751 2023-05-15T14:23:56+02:00 Production of fluorescent dissolved organic matter in Arctic Ocean sediments Chen, Meilian Kim, Ji-Hoon Nam, Seung-Il Niessen, Frank Hong, Wei-Li Kang, Moo-Hee Hur, Jin 2016 https://hdl.handle.net/10037/10751 eng eng Springer Nature Scientific Reports info:eu-repo/grantAgreement/RCN/FundingProgram/223259/Norway/// Chen et al. Production of fluorescent dissolved organic matter in Arctic Ocean sediments. Scientific Reports. 2016;6(39213) FRIDAID 1424107 2045-2322 https://hdl.handle.net/10037/10751 openAccess VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 Journal article Tidsskriftartikkel Peer reviewed 2016 ftunivtroemsoe 2021-06-25T17:55:05Z Published version. Source at http://doi.org/10.1038/srep39213 . License CC BY 4.0 . Little is known about the production of fluorescent dissolved organic matter (FDOM) in the anoxic oceanic sediments. In this study, sediment pore waters were sampled from four different sites in the Chukchi-East Siberian Seas area to examine the bulk dissolved organic carbon (DOC) and their optical properties. The production of FDOM, coupled with the increase of nutrients, was observed above the sulfate-methane-transition-zone (SMTZ). The presence of FDOM was concurrent with sulfate reduction and increased alkalinity (R2 > 0.96, p < 0.0001), suggesting a link to organic matter degradation. This inference was supported by the positive correlation (R2 > 0.95, p < 0.0001) between the net production of FDOM and the modeled degradation rates of particulate organic carbon sulfate reduction. The production of FDOM was more pronounced in a shallow shelf site S1 with a total net production ranging from 17.9 to 62.3 RU for different FDOM components above the SMTZ depth of ca. 4.1 mbsf, which presumably underwent more accumulation of particulate organic matter than the other three deeper sites. The sediments were generally found to be the sources of CDOM and FDOM to the overlying water column, unearthing a channel of generally bio-refractory and pre-aged DOM to the oceans. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Chukchi University of Tromsø: Munin Open Research Archive Arctic Arctic Ocean |
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University of Tromsø: Munin Open Research Archive |
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English |
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VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 |
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VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 Chen, Meilian Kim, Ji-Hoon Nam, Seung-Il Niessen, Frank Hong, Wei-Li Kang, Moo-Hee Hur, Jin Production of fluorescent dissolved organic matter in Arctic Ocean sediments |
topic_facet |
VDP::Mathematics and natural science: 400::Geosciences: 450::Marine geology: 466 |
description |
Published version. Source at http://doi.org/10.1038/srep39213 . License CC BY 4.0 . Little is known about the production of fluorescent dissolved organic matter (FDOM) in the anoxic oceanic sediments. In this study, sediment pore waters were sampled from four different sites in the Chukchi-East Siberian Seas area to examine the bulk dissolved organic carbon (DOC) and their optical properties. The production of FDOM, coupled with the increase of nutrients, was observed above the sulfate-methane-transition-zone (SMTZ). The presence of FDOM was concurrent with sulfate reduction and increased alkalinity (R2 > 0.96, p < 0.0001), suggesting a link to organic matter degradation. This inference was supported by the positive correlation (R2 > 0.95, p < 0.0001) between the net production of FDOM and the modeled degradation rates of particulate organic carbon sulfate reduction. The production of FDOM was more pronounced in a shallow shelf site S1 with a total net production ranging from 17.9 to 62.3 RU for different FDOM components above the SMTZ depth of ca. 4.1 mbsf, which presumably underwent more accumulation of particulate organic matter than the other three deeper sites. The sediments were generally found to be the sources of CDOM and FDOM to the overlying water column, unearthing a channel of generally bio-refractory and pre-aged DOM to the oceans. |
format |
Article in Journal/Newspaper |
author |
Chen, Meilian Kim, Ji-Hoon Nam, Seung-Il Niessen, Frank Hong, Wei-Li Kang, Moo-Hee Hur, Jin |
author_facet |
Chen, Meilian Kim, Ji-Hoon Nam, Seung-Il Niessen, Frank Hong, Wei-Li Kang, Moo-Hee Hur, Jin |
author_sort |
Chen, Meilian |
title |
Production of fluorescent dissolved organic matter in Arctic Ocean sediments |
title_short |
Production of fluorescent dissolved organic matter in Arctic Ocean sediments |
title_full |
Production of fluorescent dissolved organic matter in Arctic Ocean sediments |
title_fullStr |
Production of fluorescent dissolved organic matter in Arctic Ocean sediments |
title_full_unstemmed |
Production of fluorescent dissolved organic matter in Arctic Ocean sediments |
title_sort |
production of fluorescent dissolved organic matter in arctic ocean sediments |
publisher |
Springer Nature |
publishDate |
2016 |
url |
https://hdl.handle.net/10037/10751 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Chukchi |
genre_facet |
Arctic Arctic Arctic Ocean Chukchi |
op_relation |
Scientific Reports info:eu-repo/grantAgreement/RCN/FundingProgram/223259/Norway/// Chen et al. Production of fluorescent dissolved organic matter in Arctic Ocean sediments. Scientific Reports. 2016;6(39213) FRIDAID 1424107 2045-2322 https://hdl.handle.net/10037/10751 |
op_rights |
openAccess |
_version_ |
1766296392046739456 |