Methane production in aerobic oligotrophic surface water in the central Arctic Ocean
A methane surplus relative to the atmospheric equilibrium is a frequently observed feature of ocean surface water. Despite the common fact that biological processes are responsible for its origin, the formation of methane in aerobic surface water is still poorly understood. We report on methane prod...
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Copernicus Publications
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00029130 2023-05-15T14:49:32+02:00 Methane production in aerobic oligotrophic surface water in the central Arctic Ocean Damm, E. Helmke, E. Thoms, S. Schauer, U. Nöthig, E. Bakker, K. Kiene, R. P. 2010-03 electronic https://doi.org/10.5194/bg-7-1099-2010 https://noa.gwlb.de/receive/cop_mods_00029130 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029085/bg-7-1099-2010.pdf https://bg.copernicus.org/articles/7/1099/2010/bg-7-1099-2010.pdf eng eng Copernicus Publications Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-7-1099-2010 https://noa.gwlb.de/receive/cop_mods_00029130 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029085/bg-7-1099-2010.pdf https://bg.copernicus.org/articles/7/1099/2010/bg-7-1099-2010.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2010 ftnonlinearchiv https://doi.org/10.5194/bg-7-1099-2010 2022-02-08T22:47:52Z A methane surplus relative to the atmospheric equilibrium is a frequently observed feature of ocean surface water. Despite the common fact that biological processes are responsible for its origin, the formation of methane in aerobic surface water is still poorly understood. We report on methane production in the central Arctic Ocean, which was exclusively detected in Pacific derived water but not nearby in Atlantic derived water. The two water masses are distinguished by their different nitrate to phosphate ratios. We show that methane production occurs if nitrate is depleted but phosphate is available as a P source. Apparently the low N:P ratio enhances the ability of bacteria to compete for phosphate while the phytoplankton metabolite dimethylsulfoniopropionate (DMSP) is utilized as a C source. This was verified by experimentally induced methane production in DMSP spiked Arctic sea water. Accordingly we propose that methylated compounds may serve as precursors for methane and thermodynamic calculations show that methylotrophic methanogenesis can provide energy in aerobic environments. Article in Journal/Newspaper Arctic Arctic Ocean Phytoplankton Niedersächsisches Online-Archiv NOA Arctic Arctic Ocean Pacific Biogeosciences 7 3 1099 1108 |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Damm, E. Helmke, E. Thoms, S. Schauer, U. Nöthig, E. Bakker, K. Kiene, R. P. Methane production in aerobic oligotrophic surface water in the central Arctic Ocean |
topic_facet |
article Verlagsveröffentlichung |
description |
A methane surplus relative to the atmospheric equilibrium is a frequently observed feature of ocean surface water. Despite the common fact that biological processes are responsible for its origin, the formation of methane in aerobic surface water is still poorly understood. We report on methane production in the central Arctic Ocean, which was exclusively detected in Pacific derived water but not nearby in Atlantic derived water. The two water masses are distinguished by their different nitrate to phosphate ratios. We show that methane production occurs if nitrate is depleted but phosphate is available as a P source. Apparently the low N:P ratio enhances the ability of bacteria to compete for phosphate while the phytoplankton metabolite dimethylsulfoniopropionate (DMSP) is utilized as a C source. This was verified by experimentally induced methane production in DMSP spiked Arctic sea water. Accordingly we propose that methylated compounds may serve as precursors for methane and thermodynamic calculations show that methylotrophic methanogenesis can provide energy in aerobic environments. |
format |
Article in Journal/Newspaper |
author |
Damm, E. Helmke, E. Thoms, S. Schauer, U. Nöthig, E. Bakker, K. Kiene, R. P. |
author_facet |
Damm, E. Helmke, E. Thoms, S. Schauer, U. Nöthig, E. Bakker, K. Kiene, R. P. |
author_sort |
Damm, E. |
title |
Methane production in aerobic oligotrophic surface water in the central Arctic Ocean |
title_short |
Methane production in aerobic oligotrophic surface water in the central Arctic Ocean |
title_full |
Methane production in aerobic oligotrophic surface water in the central Arctic Ocean |
title_fullStr |
Methane production in aerobic oligotrophic surface water in the central Arctic Ocean |
title_full_unstemmed |
Methane production in aerobic oligotrophic surface water in the central Arctic Ocean |
title_sort |
methane production in aerobic oligotrophic surface water in the central arctic ocean |
publisher |
Copernicus Publications |
publishDate |
2010 |
url |
https://doi.org/10.5194/bg-7-1099-2010 https://noa.gwlb.de/receive/cop_mods_00029130 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029085/bg-7-1099-2010.pdf https://bg.copernicus.org/articles/7/1099/2010/bg-7-1099-2010.pdf |
geographic |
Arctic Arctic Ocean Pacific |
geographic_facet |
Arctic Arctic Ocean Pacific |
genre |
Arctic Arctic Ocean Phytoplankton |
genre_facet |
Arctic Arctic Ocean Phytoplankton |
op_relation |
Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-7-1099-2010 https://noa.gwlb.de/receive/cop_mods_00029130 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00029085/bg-7-1099-2010.pdf https://bg.copernicus.org/articles/7/1099/2010/bg-7-1099-2010.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/bg-7-1099-2010 |
container_title |
Biogeosciences |
container_volume |
7 |
container_issue |
3 |
container_start_page |
1099 |
op_container_end_page |
1108 |
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1766320577429110784 |