Supplementary Figure S1 to S5 from Does Arctic warming reduce preservation of organic matter in Barents Sea sediments?
Over the last few decades, the Barents Sea experienced substantial warming, an expansion of relatively warm Atlantic water and a reduction in sea ice cover. This environmental change forces the entire Barents Sea ecosystem to adapt and restructure and therefore changes in pelagic–benthic coupling, o...
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ftroysocietyfig:oai:figshare.com:article/12643901 2023-05-15T14:51:52+02:00 Supplementary Figure S1 to S5 from Does Arctic warming reduce preservation of organic matter in Barents Sea sediments? Johan C. Faust Mark A. Stevenson Geoffrey D. Abbott Jochen Knies Allyson Tessin Isobel Mannion Ailbe Ford Robert Hilton Jeffrey Peakall Christian März 2020-07-11T16:27:50Z https://doi.org/10.6084/m9.figshare.12643901.v1 https://figshare.com/articles/dataset/Supplementary_Figure_S1_to_S5_from_Does_Arctic_warming_reduce_preservation_of_organic_matter_in_Barents_Sea_sediments_/12643901 unknown doi:10.6084/m9.figshare.12643901.v1 https://figshare.com/articles/dataset/Supplementary_Figure_S1_to_S5_from_Does_Arctic_warming_reduce_preservation_of_organic_matter_in_Barents_Sea_sediments_/12643901 CC BY 4.0 CC-BY Geology Geochemistry Barents Sea geochemical sediment composition organic carbon bound to reactive iron carbon cycle Arctic Ocean marine surface sediments Dataset 2020 ftroysocietyfig https://doi.org/10.6084/m9.figshare.12643901.v1 2022-01-01T19:29:31Z Over the last few decades, the Barents Sea experienced substantial warming, an expansion of relatively warm Atlantic water and a reduction in sea ice cover. This environmental change forces the entire Barents Sea ecosystem to adapt and restructure and therefore changes in pelagic–benthic coupling, organic matter sedimentation and long-term carbon sequestration are expected. Here we combine new and existing organic and inorganic geochemical surface sediment data from the western Barents Sea and show a clear link between the modern ecosystem structure, sea ice cover and the organic carbon and CaCO 3 contents in Barents Sea surface sediments. Furthermore, we discuss the sources of total and reactive iron phases and evaluate the spatial distribution of organic carbon bound to reactive iron. Consistent with a recent global estimate we find that on average 21.0 ± 8.3 per cent of the total organic carbon is associated to reactive iron (fOC-Fe R ) in Barents Sea surface sediments. The spatial distribution of fOC-Fe R , however, seems to be unrelated to sea ice cover, Atlantic water inflow or proximity to land. Future Arctic warming might, therefore, neither increase nor decrease the burial rates of iron-associated organic carbon. However, our results also imply that ongoing sea ice reduction and the associated alteration of vertical carbon fluxes might cause accompanied shifts in the Barents Sea surface sedimentary organic carbon content, which might result in overall reduced carbon sequestration in the future.This article is part of the theme issue ‘The Changing Arctic Ocean: consequences for biological communities, biogeochemical processes and ecosystems’. Dataset Arctic Arctic Ocean Barents Sea Sea ice The Royal Society: Figshare Arctic Arctic Ocean Barents Sea |
institution |
Open Polar |
collection |
The Royal Society: Figshare |
op_collection_id |
ftroysocietyfig |
language |
unknown |
topic |
Geology Geochemistry Barents Sea geochemical sediment composition organic carbon bound to reactive iron carbon cycle Arctic Ocean marine surface sediments |
spellingShingle |
Geology Geochemistry Barents Sea geochemical sediment composition organic carbon bound to reactive iron carbon cycle Arctic Ocean marine surface sediments Johan C. Faust Mark A. Stevenson Geoffrey D. Abbott Jochen Knies Allyson Tessin Isobel Mannion Ailbe Ford Robert Hilton Jeffrey Peakall Christian März Supplementary Figure S1 to S5 from Does Arctic warming reduce preservation of organic matter in Barents Sea sediments? |
topic_facet |
Geology Geochemistry Barents Sea geochemical sediment composition organic carbon bound to reactive iron carbon cycle Arctic Ocean marine surface sediments |
description |
Over the last few decades, the Barents Sea experienced substantial warming, an expansion of relatively warm Atlantic water and a reduction in sea ice cover. This environmental change forces the entire Barents Sea ecosystem to adapt and restructure and therefore changes in pelagic–benthic coupling, organic matter sedimentation and long-term carbon sequestration are expected. Here we combine new and existing organic and inorganic geochemical surface sediment data from the western Barents Sea and show a clear link between the modern ecosystem structure, sea ice cover and the organic carbon and CaCO 3 contents in Barents Sea surface sediments. Furthermore, we discuss the sources of total and reactive iron phases and evaluate the spatial distribution of organic carbon bound to reactive iron. Consistent with a recent global estimate we find that on average 21.0 ± 8.3 per cent of the total organic carbon is associated to reactive iron (fOC-Fe R ) in Barents Sea surface sediments. The spatial distribution of fOC-Fe R , however, seems to be unrelated to sea ice cover, Atlantic water inflow or proximity to land. Future Arctic warming might, therefore, neither increase nor decrease the burial rates of iron-associated organic carbon. However, our results also imply that ongoing sea ice reduction and the associated alteration of vertical carbon fluxes might cause accompanied shifts in the Barents Sea surface sedimentary organic carbon content, which might result in overall reduced carbon sequestration in the future.This article is part of the theme issue ‘The Changing Arctic Ocean: consequences for biological communities, biogeochemical processes and ecosystems’. |
format |
Dataset |
author |
Johan C. Faust Mark A. Stevenson Geoffrey D. Abbott Jochen Knies Allyson Tessin Isobel Mannion Ailbe Ford Robert Hilton Jeffrey Peakall Christian März |
author_facet |
Johan C. Faust Mark A. Stevenson Geoffrey D. Abbott Jochen Knies Allyson Tessin Isobel Mannion Ailbe Ford Robert Hilton Jeffrey Peakall Christian März |
author_sort |
Johan C. Faust |
title |
Supplementary Figure S1 to S5 from Does Arctic warming reduce preservation of organic matter in Barents Sea sediments? |
title_short |
Supplementary Figure S1 to S5 from Does Arctic warming reduce preservation of organic matter in Barents Sea sediments? |
title_full |
Supplementary Figure S1 to S5 from Does Arctic warming reduce preservation of organic matter in Barents Sea sediments? |
title_fullStr |
Supplementary Figure S1 to S5 from Does Arctic warming reduce preservation of organic matter in Barents Sea sediments? |
title_full_unstemmed |
Supplementary Figure S1 to S5 from Does Arctic warming reduce preservation of organic matter in Barents Sea sediments? |
title_sort |
supplementary figure s1 to s5 from does arctic warming reduce preservation of organic matter in barents sea sediments? |
publishDate |
2020 |
url |
https://doi.org/10.6084/m9.figshare.12643901.v1 https://figshare.com/articles/dataset/Supplementary_Figure_S1_to_S5_from_Does_Arctic_warming_reduce_preservation_of_organic_matter_in_Barents_Sea_sediments_/12643901 |
geographic |
Arctic Arctic Ocean Barents Sea |
geographic_facet |
Arctic Arctic Ocean Barents Sea |
genre |
Arctic Arctic Ocean Barents Sea Sea ice |
genre_facet |
Arctic Arctic Ocean Barents Sea Sea ice |
op_relation |
doi:10.6084/m9.figshare.12643901.v1 https://figshare.com/articles/dataset/Supplementary_Figure_S1_to_S5_from_Does_Arctic_warming_reduce_preservation_of_organic_matter_in_Barents_Sea_sediments_/12643901 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.6084/m9.figshare.12643901.v1 |
_version_ |
1766323018455318528 |