Impact of sea-ice melt on dimethyl sulfide (sulfoniopropionate) inventories in surface waters of Marguerite Bay, West Antarctic Peninsula
The Southern Ocean is a hotspot of the climate-relevant organic sulfur compound dimethyl sulfide (DMS). Spatial and temporal variability in DMS concentration is higher than in any other oceanic region, especially in the marginal ice zone. During a one-week expedition across the continental shelf of...
Published in: | Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
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crroyalsociety:10.1098/rsta.2017.0169 2024-06-02T07:58:41+00:00 Impact of sea-ice melt on dimethyl sulfide (sulfoniopropionate) inventories in surface waters of Marguerite Bay, West Antarctic Peninsula Stefels, Jacqueline van Leeuwe, Maria A. Jones, Elizabeth M. Meredith, Michael P. Venables, Hugh J. Webb, Alison L. Henley, Sian F. Dutch Science Foundation UK Natural Environment Research Council 2018 http://dx.doi.org/10.1098/rsta.2017.0169 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2017.0169 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsta.2017.0169 en eng The Royal Society https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences volume 376, issue 2122, page 20170169 ISSN 1364-503X 1471-2962 journal-article 2018 crroyalsociety https://doi.org/10.1098/rsta.2017.0169 2024-05-07T14:16:33Z The Southern Ocean is a hotspot of the climate-relevant organic sulfur compound dimethyl sulfide (DMS). Spatial and temporal variability in DMS concentration is higher than in any other oceanic region, especially in the marginal ice zone. During a one-week expedition across the continental shelf of the West Antarctic Peninsula (WAP), from the shelf break into Marguerite Bay, in January 2015, spatial heterogeneity of DMS and its precursor dimethyl sulfoniopropionate (DMSP) was studied and linked with environmental conditions, including sea-ice melt events. Concentrations of sulfur compounds, particulate organic carbon (POC) and chlorophyll a in the surface waters varied by a factor of 5–6 over the entire transect. DMS and DMSP concentrations were an order of magnitude higher than currently inferred in climatologies for the WAP region. Particulate DMSP concentrations were correlated most strongly with POC and the abundance of haptophyte algae within the phytoplankton community, which, in turn, was linked with sea-ice melt. The strong sea-ice signal in the distribution of DMS(P) implies that DMS(P) production is likely to decrease with ongoing reductions in sea-ice cover along the WAP. This has implications for feedback processes on the region's climate system. This article is part of the theme issue ‘The marine system of the West Antarctic Peninsula: status and strategy for progress in a region of rapid change’. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Sea ice Southern Ocean The Royal Society Antarctic Southern Ocean Antarctic Peninsula Marguerite ENVELOPE(141.378,141.378,-66.787,-66.787) Marguerite Bay ENVELOPE(-68.000,-68.000,-68.500,-68.500) Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences 376 2122 20170169 |
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Open Polar |
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The Royal Society |
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crroyalsociety |
language |
English |
description |
The Southern Ocean is a hotspot of the climate-relevant organic sulfur compound dimethyl sulfide (DMS). Spatial and temporal variability in DMS concentration is higher than in any other oceanic region, especially in the marginal ice zone. During a one-week expedition across the continental shelf of the West Antarctic Peninsula (WAP), from the shelf break into Marguerite Bay, in January 2015, spatial heterogeneity of DMS and its precursor dimethyl sulfoniopropionate (DMSP) was studied and linked with environmental conditions, including sea-ice melt events. Concentrations of sulfur compounds, particulate organic carbon (POC) and chlorophyll a in the surface waters varied by a factor of 5–6 over the entire transect. DMS and DMSP concentrations were an order of magnitude higher than currently inferred in climatologies for the WAP region. Particulate DMSP concentrations were correlated most strongly with POC and the abundance of haptophyte algae within the phytoplankton community, which, in turn, was linked with sea-ice melt. The strong sea-ice signal in the distribution of DMS(P) implies that DMS(P) production is likely to decrease with ongoing reductions in sea-ice cover along the WAP. This has implications for feedback processes on the region's climate system. This article is part of the theme issue ‘The marine system of the West Antarctic Peninsula: status and strategy for progress in a region of rapid change’. |
author2 |
Dutch Science Foundation UK Natural Environment Research Council |
format |
Article in Journal/Newspaper |
author |
Stefels, Jacqueline van Leeuwe, Maria A. Jones, Elizabeth M. Meredith, Michael P. Venables, Hugh J. Webb, Alison L. Henley, Sian F. |
spellingShingle |
Stefels, Jacqueline van Leeuwe, Maria A. Jones, Elizabeth M. Meredith, Michael P. Venables, Hugh J. Webb, Alison L. Henley, Sian F. Impact of sea-ice melt on dimethyl sulfide (sulfoniopropionate) inventories in surface waters of Marguerite Bay, West Antarctic Peninsula |
author_facet |
Stefels, Jacqueline van Leeuwe, Maria A. Jones, Elizabeth M. Meredith, Michael P. Venables, Hugh J. Webb, Alison L. Henley, Sian F. |
author_sort |
Stefels, Jacqueline |
title |
Impact of sea-ice melt on dimethyl sulfide (sulfoniopropionate) inventories in surface waters of Marguerite Bay, West Antarctic Peninsula |
title_short |
Impact of sea-ice melt on dimethyl sulfide (sulfoniopropionate) inventories in surface waters of Marguerite Bay, West Antarctic Peninsula |
title_full |
Impact of sea-ice melt on dimethyl sulfide (sulfoniopropionate) inventories in surface waters of Marguerite Bay, West Antarctic Peninsula |
title_fullStr |
Impact of sea-ice melt on dimethyl sulfide (sulfoniopropionate) inventories in surface waters of Marguerite Bay, West Antarctic Peninsula |
title_full_unstemmed |
Impact of sea-ice melt on dimethyl sulfide (sulfoniopropionate) inventories in surface waters of Marguerite Bay, West Antarctic Peninsula |
title_sort |
impact of sea-ice melt on dimethyl sulfide (sulfoniopropionate) inventories in surface waters of marguerite bay, west antarctic peninsula |
publisher |
The Royal Society |
publishDate |
2018 |
url |
http://dx.doi.org/10.1098/rsta.2017.0169 https://royalsocietypublishing.org/doi/pdf/10.1098/rsta.2017.0169 https://royalsocietypublishing.org/doi/full-xml/10.1098/rsta.2017.0169 |
long_lat |
ENVELOPE(141.378,141.378,-66.787,-66.787) ENVELOPE(-68.000,-68.000,-68.500,-68.500) |
geographic |
Antarctic Southern Ocean Antarctic Peninsula Marguerite Marguerite Bay |
geographic_facet |
Antarctic Southern Ocean Antarctic Peninsula Marguerite Marguerite Bay |
genre |
Antarc* Antarctic Antarctic Peninsula Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Sea ice Southern Ocean |
op_source |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences volume 376, issue 2122, page 20170169 ISSN 1364-503X 1471-2962 |
op_rights |
https://royalsociety.org/journals/ethics-policies/data-sharing-mining/ |
op_doi |
https://doi.org/10.1098/rsta.2017.0169 |
container_title |
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences |
container_volume |
376 |
container_issue |
2122 |
container_start_page |
20170169 |
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