Sea Ice and Water Mass Influence Dimethylsulfide Concentrations in the Central Arctic Ocean
Dimethylsulfide (DMS) is a biogenic trace gas with importance to aerosol formation. DMS is produced by microbial degradation of dimethylsulfoniopropionate (DMSP), an abundant metabolite in marine microalgae. We analyzed DMS and DMSP concentrations in surface water in the central Arctic Ocean during...
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ftdoajarticles:oai:doaj.org/article:8588496c715b4bfa9b1120f994f98d39 2023-05-15T14:52:58+02:00 Sea Ice and Water Mass Influence Dimethylsulfide Concentrations in the Central Arctic Ocean Christiane Uhlig Ellen Damm Ilka Peeken Thomas Krumpen Benjamin Rabe Meri Korhonen Kai-Uwe Ludwichowski 2019-07-01T00:00:00Z https://doi.org/10.3389/feart.2019.00179 https://doaj.org/article/8588496c715b4bfa9b1120f994f98d39 EN eng Frontiers Media S.A. https://www.frontiersin.org/article/10.3389/feart.2019.00179/full https://doaj.org/toc/2296-6463 2296-6463 doi:10.3389/feart.2019.00179 https://doaj.org/article/8588496c715b4bfa9b1120f994f98d39 Frontiers in Earth Science, Vol 7 (2019) DMS DMSP aerosol Arctic Ocean sea ice Science Q article 2019 ftdoajarticles https://doi.org/10.3389/feart.2019.00179 2022-12-30T22:56:55Z Dimethylsulfide (DMS) is a biogenic trace gas with importance to aerosol formation. DMS is produced by microbial degradation of dimethylsulfoniopropionate (DMSP), an abundant metabolite in marine microalgae. We analyzed DMS and DMSP concentrations in surface water in the central Arctic Ocean during two expeditions north of 79°N in 2011 and 2015. We identified three regions, which were characterized by different DMS and DMSP concentrations, dependent on the regional water masses and the relative movement of sea ice and water to each other. In addition, correlations between DMS and DMSP and correlation of the two sulfur compounds to autotrophic biomass (as chlorophyll a) differed in the regions. In the area of the nutrient rich Atlantic water inflow and short contact of this water with sea ice, DMS is present in high concentrations and correlates to DMSP as well as chlorophyll a. At two stations, particularly high DMS concentrations were found in conjunction with under-ice phytoplankton biomass peaks. In contrast, in mixed Atlantic and Pacific water with strong polar influence, where long-term contact between sea ice and water causes persistent stratification, only little DMS is found. Further, the correlations to DMSP and chlorophyll a are lost and the ratio of DMS to DMSP is about one order of magnitude lower, pointing toward consumption of DMSP without the production of DMS. We conclude that the duration of sea ice influence and source of the surface water do not only lead to differences in phytoplankton productivity, resulting in different DMSP concentrations, but also influence microbial recycling of DMSP to DMS or other compounds. DMS production, as possible source for aerosols, is thus presumably lower in the strongly sea ice influenced central Arctic areas than what could be expected from DMSP concentration or biomass. Article in Journal/Newspaper Arctic Arctic Ocean Phytoplankton Sea ice Directory of Open Access Journals: DOAJ Articles Arctic Arctic Ocean Pacific Frontiers in Earth Science 7 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
DMS DMSP aerosol Arctic Ocean sea ice Science Q |
spellingShingle |
DMS DMSP aerosol Arctic Ocean sea ice Science Q Christiane Uhlig Ellen Damm Ilka Peeken Thomas Krumpen Benjamin Rabe Meri Korhonen Kai-Uwe Ludwichowski Sea Ice and Water Mass Influence Dimethylsulfide Concentrations in the Central Arctic Ocean |
topic_facet |
DMS DMSP aerosol Arctic Ocean sea ice Science Q |
description |
Dimethylsulfide (DMS) is a biogenic trace gas with importance to aerosol formation. DMS is produced by microbial degradation of dimethylsulfoniopropionate (DMSP), an abundant metabolite in marine microalgae. We analyzed DMS and DMSP concentrations in surface water in the central Arctic Ocean during two expeditions north of 79°N in 2011 and 2015. We identified three regions, which were characterized by different DMS and DMSP concentrations, dependent on the regional water masses and the relative movement of sea ice and water to each other. In addition, correlations between DMS and DMSP and correlation of the two sulfur compounds to autotrophic biomass (as chlorophyll a) differed in the regions. In the area of the nutrient rich Atlantic water inflow and short contact of this water with sea ice, DMS is present in high concentrations and correlates to DMSP as well as chlorophyll a. At two stations, particularly high DMS concentrations were found in conjunction with under-ice phytoplankton biomass peaks. In contrast, in mixed Atlantic and Pacific water with strong polar influence, where long-term contact between sea ice and water causes persistent stratification, only little DMS is found. Further, the correlations to DMSP and chlorophyll a are lost and the ratio of DMS to DMSP is about one order of magnitude lower, pointing toward consumption of DMSP without the production of DMS. We conclude that the duration of sea ice influence and source of the surface water do not only lead to differences in phytoplankton productivity, resulting in different DMSP concentrations, but also influence microbial recycling of DMSP to DMS or other compounds. DMS production, as possible source for aerosols, is thus presumably lower in the strongly sea ice influenced central Arctic areas than what could be expected from DMSP concentration or biomass. |
format |
Article in Journal/Newspaper |
author |
Christiane Uhlig Ellen Damm Ilka Peeken Thomas Krumpen Benjamin Rabe Meri Korhonen Kai-Uwe Ludwichowski |
author_facet |
Christiane Uhlig Ellen Damm Ilka Peeken Thomas Krumpen Benjamin Rabe Meri Korhonen Kai-Uwe Ludwichowski |
author_sort |
Christiane Uhlig |
title |
Sea Ice and Water Mass Influence Dimethylsulfide Concentrations in the Central Arctic Ocean |
title_short |
Sea Ice and Water Mass Influence Dimethylsulfide Concentrations in the Central Arctic Ocean |
title_full |
Sea Ice and Water Mass Influence Dimethylsulfide Concentrations in the Central Arctic Ocean |
title_fullStr |
Sea Ice and Water Mass Influence Dimethylsulfide Concentrations in the Central Arctic Ocean |
title_full_unstemmed |
Sea Ice and Water Mass Influence Dimethylsulfide Concentrations in the Central Arctic Ocean |
title_sort |
sea ice and water mass influence dimethylsulfide concentrations in the central arctic ocean |
publisher |
Frontiers Media S.A. |
publishDate |
2019 |
url |
https://doi.org/10.3389/feart.2019.00179 https://doaj.org/article/8588496c715b4bfa9b1120f994f98d39 |
geographic |
Arctic Arctic Ocean Pacific |
geographic_facet |
Arctic Arctic Ocean Pacific |
genre |
Arctic Arctic Ocean Phytoplankton Sea ice |
genre_facet |
Arctic Arctic Ocean Phytoplankton Sea ice |
op_source |
Frontiers in Earth Science, Vol 7 (2019) |
op_relation |
https://www.frontiersin.org/article/10.3389/feart.2019.00179/full https://doaj.org/toc/2296-6463 2296-6463 doi:10.3389/feart.2019.00179 https://doaj.org/article/8588496c715b4bfa9b1120f994f98d39 |
op_doi |
https://doi.org/10.3389/feart.2019.00179 |
container_title |
Frontiers in Earth Science |
container_volume |
7 |
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1766324376424153088 |