Replication Data for: Arctic cold seeps alter dissolved organic matter composition at the Svalbard continental margin and the Barents Sea
Abstract: Dissociating gas hydrates, submerged permafrost, and gas bearing sediments release methane to the water column from a multitude of seeps in the Arctic Ocean. The seeping methane dissolves and supports the growth of aerobic methane oxidizing bacteria (MOB), but the effect of seepage and see...
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dataone:sha256:49c5e336498de2f640895fb84201bd7cf79e89f649ed3d3f68945214805af9f0 2024-10-03T18:45:47+00:00 Replication Data for: Arctic cold seeps alter dissolved organic matter composition at the Svalbard continental margin and the Barents Sea Sert, Muhammed Fatih D'Andrilli, Juliana Gründger, Friederike Niemann, Helge Granskog, Mats A. Pavlov, Alexey K. Ferré, Bénédicte Silyakova, Anna 2020-05-08T00:00:00Z https://search.dataone.org/view/sha256:49c5e336498de2f640895fb84201bd7cf79e89f649ed3d3f68945214805af9f0 unknown methane oxidizing bacteria cold seeps Dissolved organic matter methane hydrate arctic ocean methane oxidation Earth and Environmental Sciences Dataset 2020 dataone:urn:node:DVNO 2024-10-03T18:17:11Z Abstract: Dissociating gas hydrates, submerged permafrost, and gas bearing sediments release methane to the water column from a multitude of seeps in the Arctic Ocean. The seeping methane dissolves and supports the growth of aerobic methane oxidizing bacteria (MOB), but the effect of seepage and seep related biogeochemical processes on water column dissolved organic matter (DOM) dynamics is not well constrained. We compared dissolved methane, nutrients, chlorophyll, and particulate matter concentrations and methane oxidation (MOx) rates from previously characterized seep and non-seep areas at the continental margin of Svalbard and the Barents Sea in May and June 2017. DOM molecular composition was determined by Electrospray Ionization Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS). We found that the chemical diversity of DOM was 3 to 5 % higher and constituted more protein- and lipid-like composition near methane seeps when compared to non-seep areas. Distributions of nutrients, chlorophyll, and particulate matter however, were essentially governed by the water column hydrography and primary production. We hypothesised that the organic intermediates directly derived from seepage or indirectly from seep-related biogeochemical processes, e.g. MOx, can modify the composition of DOM leading to distinct DOM molecular-level signatures in the water column at cold seeps. Dataset Arctic Arctic Ocean Barents Sea Methane hydrate permafrost Svalbard Unknown Arctic Arctic Ocean Barents Sea Svalbard |
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Open Polar |
collection |
Unknown |
op_collection_id |
dataone:urn:node:DVNO |
language |
unknown |
topic |
methane oxidizing bacteria cold seeps Dissolved organic matter methane hydrate arctic ocean methane oxidation Earth and Environmental Sciences |
spellingShingle |
methane oxidizing bacteria cold seeps Dissolved organic matter methane hydrate arctic ocean methane oxidation Earth and Environmental Sciences Sert, Muhammed Fatih D'Andrilli, Juliana Gründger, Friederike Niemann, Helge Granskog, Mats A. Pavlov, Alexey K. Ferré, Bénédicte Silyakova, Anna Replication Data for: Arctic cold seeps alter dissolved organic matter composition at the Svalbard continental margin and the Barents Sea |
topic_facet |
methane oxidizing bacteria cold seeps Dissolved organic matter methane hydrate arctic ocean methane oxidation Earth and Environmental Sciences |
description |
Abstract: Dissociating gas hydrates, submerged permafrost, and gas bearing sediments release methane to the water column from a multitude of seeps in the Arctic Ocean. The seeping methane dissolves and supports the growth of aerobic methane oxidizing bacteria (MOB), but the effect of seepage and seep related biogeochemical processes on water column dissolved organic matter (DOM) dynamics is not well constrained. We compared dissolved methane, nutrients, chlorophyll, and particulate matter concentrations and methane oxidation (MOx) rates from previously characterized seep and non-seep areas at the continental margin of Svalbard and the Barents Sea in May and June 2017. DOM molecular composition was determined by Electrospray Ionization Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS). We found that the chemical diversity of DOM was 3 to 5 % higher and constituted more protein- and lipid-like composition near methane seeps when compared to non-seep areas. Distributions of nutrients, chlorophyll, and particulate matter however, were essentially governed by the water column hydrography and primary production. We hypothesised that the organic intermediates directly derived from seepage or indirectly from seep-related biogeochemical processes, e.g. MOx, can modify the composition of DOM leading to distinct DOM molecular-level signatures in the water column at cold seeps. |
format |
Dataset |
author |
Sert, Muhammed Fatih D'Andrilli, Juliana Gründger, Friederike Niemann, Helge Granskog, Mats A. Pavlov, Alexey K. Ferré, Bénédicte Silyakova, Anna |
author_facet |
Sert, Muhammed Fatih D'Andrilli, Juliana Gründger, Friederike Niemann, Helge Granskog, Mats A. Pavlov, Alexey K. Ferré, Bénédicte Silyakova, Anna |
author_sort |
Sert, Muhammed Fatih |
title |
Replication Data for: Arctic cold seeps alter dissolved organic matter composition at the Svalbard continental margin and the Barents Sea |
title_short |
Replication Data for: Arctic cold seeps alter dissolved organic matter composition at the Svalbard continental margin and the Barents Sea |
title_full |
Replication Data for: Arctic cold seeps alter dissolved organic matter composition at the Svalbard continental margin and the Barents Sea |
title_fullStr |
Replication Data for: Arctic cold seeps alter dissolved organic matter composition at the Svalbard continental margin and the Barents Sea |
title_full_unstemmed |
Replication Data for: Arctic cold seeps alter dissolved organic matter composition at the Svalbard continental margin and the Barents Sea |
title_sort |
replication data for: arctic cold seeps alter dissolved organic matter composition at the svalbard continental margin and the barents sea |
publishDate |
2020 |
url |
https://search.dataone.org/view/sha256:49c5e336498de2f640895fb84201bd7cf79e89f649ed3d3f68945214805af9f0 |
geographic |
Arctic Arctic Ocean Barents Sea Svalbard |
geographic_facet |
Arctic Arctic Ocean Barents Sea Svalbard |
genre |
Arctic Arctic Ocean Barents Sea Methane hydrate permafrost Svalbard |
genre_facet |
Arctic Arctic Ocean Barents Sea Methane hydrate permafrost Svalbard |
_version_ |
1811920570841825280 |