Concentrations of dissolved dimethyl sulfide (DMS), methanethiol and other trace gases in context of microbial communities from the temperate Atlantic to the Arctic Ocean
<p>Dimethyl sulfide (<span class="inline-formula">DMS</span>) plays an important role in the atmosphere by influencing the formation of aerosols and cloud condensation nuclei. In contrast, the role of methanethiol (<span class="inline-formula">MeSH</spa...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Copernicus Publications
2023-02-01
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| Series: | Biogeosciences |
| Online Access: | https://bg.copernicus.org/articles/20/851/2023/bg-20-851-2023.pdf |
| _version_ | 1797895334993592320 |
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| author | V. Gros B. Bonsang R. Sarda-Estève A. Nikolopoulos K. Metfies M. Wietz M. Wietz I. Peeken |
| author_facet | V. Gros B. Bonsang R. Sarda-Estève A. Nikolopoulos K. Metfies M. Wietz M. Wietz I. Peeken |
| author_sort | V. Gros |
| collection | DOAJ |
| description | <p>Dimethyl sulfide (<span class="inline-formula">DMS</span>) plays an important role in the atmosphere by influencing the formation of aerosols and cloud condensation nuclei. In
contrast, the role of methanethiol (<span class="inline-formula">MeSH</span>) for the budget and flux of reduced sulfur remains poorly understood. In the present study, we
quantified <span class="inline-formula">DMS</span> and <span class="inline-formula">MeSH</span> together with the trace gases carbon monoxide (<span class="inline-formula">CO</span>), isoprene, acetone, acetaldehyde and acetonitrile in
North Atlantic and Arctic Ocean surface waters, covering a transect from 57.2 to 80.9<span class="inline-formula"><sup>∘</sup></span> N in high spatial resolution in May–June
2015. Whereas isoprene, acetone, acetaldehyde and acetonitrile concentrations decreased northwards, <span class="inline-formula">CO</span>, <span class="inline-formula">DMS</span> and <span class="inline-formula">MeSH</span> retained
substantial concentrations at high latitudes, indicating specific sources in polar waters. <span class="inline-formula">DMS</span> was the only compound with a higher average concentration in
polar (31.2 <span class="inline-formula">±</span> 9.3 <span class="inline-formula">nM</span>) than in Atlantic waters (13.5 <span class="inline-formula">±</span> 2 <span class="inline-formula">nM</span>), presumably due to <span class="inline-formula">DMS</span> originating from sea ice. At
eight sea-ice stations north of 80<span class="inline-formula"><sup>∘</sup></span> N, in the diatom-dominated marginal ice zone, <span class="inline-formula">DMS</span> and chlorophyll <span class="inline-formula"><i>a</i></span> markedly correlated
(<span class="inline-formula"><i>R</i><sup>2</sup></span> <span class="inline-formula">=</span> 0.93) between 0–50 <span class="inline-formula">m</span> depth. In contrast to previous studies, <span class="inline-formula">MeSH</span> and <span class="inline-formula">DMS</span> did not co-vary, indicating decoupled
processes of production and conversion. The contribution of <span class="inline-formula">MeSH</span> to the sulfur budget (represented by <span class="inline-formula">DMS</span> <span class="inline-formula">+</span> <span class="inline-formula">MeSH</span>) was on
average 20 % (and up to 50 %) higher than previously observed in the Atlantic and Pacific oceans, suggesting <span class="inline-formula">MeSH</span> as an important
source of sulfur possibly emitted to the atmosphere. The potential importance of <span class="inline-formula">MeSH</span> was underlined by several correlations with bacterial
taxa, including typical phytoplankton associates from the <i>Rhodobacteraceae</i> and <i>Flavobacteriaceae</i> families. Furthermore, the
correlation of isoprene and chlorophyll <span class="inline-formula"><i>a</i></span> with <i>Alcanivorax</i> indicated a specific relationship with isoprene-producing
phytoplankton. Overall, the demonstrated latitudinal and vertical patterns contribute to understanding how concentrations of central marine trace
gases are linked with chemical and biological dynamics across oceanic waters.</p> |
| first_indexed | 2024-04-10T07:24:58Z |
| format | Article |
| id | doaj.art-49ffde238ae247698ba52243e1cf72cc |
| institution | Directory Open Access Journal |
| issn | 1726-4170 1726-4189 |
| language | English |
| last_indexed | 2024-04-10T07:24:58Z |
| publishDate | 2023-02-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Biogeosciences |
| spelling | doaj.art-49ffde238ae247698ba52243e1cf72cc2023-02-24T09:02:15ZengCopernicus PublicationsBiogeosciences1726-41701726-41892023-02-012085186710.5194/bg-20-851-2023Concentrations of dissolved dimethyl sulfide (DMS), methanethiol and other trace gases in context of microbial communities from the temperate Atlantic to the Arctic OceanV. Gros0B. Bonsang1R. Sarda-Estève2A. Nikolopoulos3K. Metfies4M. Wietz5M. Wietz6I. Peeken7Laboratoire des Sciences du Climat et de l'Environnement, CNRS-CEA-UVSQ, IPSL, 91 191 Gif sur Yvette, FranceLaboratoire des Sciences du Climat et de l'Environnement, CNRS-CEA-UVSQ, IPSL, 91 191 Gif sur Yvette, FranceLaboratoire des Sciences du Climat et de l'Environnement, CNRS-CEA-UVSQ, IPSL, 91 191 Gif sur Yvette, FranceNorwegian Polar Institute, Fram Centre, 9296 Tromsø, NorwayAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research, 27570 Bremerhaven, GermanyAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research, 27570 Bremerhaven, GermanyMax Planck Institute for Marine Microbiology, 28359 Bremen, GermanyAlfred Wegener Institute Helmholtz Centre for Polar and Marine Research, 27570 Bremerhaven, Germany<p>Dimethyl sulfide (<span class="inline-formula">DMS</span>) plays an important role in the atmosphere by influencing the formation of aerosols and cloud condensation nuclei. In contrast, the role of methanethiol (<span class="inline-formula">MeSH</span>) for the budget and flux of reduced sulfur remains poorly understood. In the present study, we quantified <span class="inline-formula">DMS</span> and <span class="inline-formula">MeSH</span> together with the trace gases carbon monoxide (<span class="inline-formula">CO</span>), isoprene, acetone, acetaldehyde and acetonitrile in North Atlantic and Arctic Ocean surface waters, covering a transect from 57.2 to 80.9<span class="inline-formula"><sup>∘</sup></span> N in high spatial resolution in May–June 2015. Whereas isoprene, acetone, acetaldehyde and acetonitrile concentrations decreased northwards, <span class="inline-formula">CO</span>, <span class="inline-formula">DMS</span> and <span class="inline-formula">MeSH</span> retained substantial concentrations at high latitudes, indicating specific sources in polar waters. <span class="inline-formula">DMS</span> was the only compound with a higher average concentration in polar (31.2 <span class="inline-formula">±</span> 9.3 <span class="inline-formula">nM</span>) than in Atlantic waters (13.5 <span class="inline-formula">±</span> 2 <span class="inline-formula">nM</span>), presumably due to <span class="inline-formula">DMS</span> originating from sea ice. At eight sea-ice stations north of 80<span class="inline-formula"><sup>∘</sup></span> N, in the diatom-dominated marginal ice zone, <span class="inline-formula">DMS</span> and chlorophyll <span class="inline-formula"><i>a</i></span> markedly correlated (<span class="inline-formula"><i>R</i><sup>2</sup></span> <span class="inline-formula">=</span> 0.93) between 0–50 <span class="inline-formula">m</span> depth. In contrast to previous studies, <span class="inline-formula">MeSH</span> and <span class="inline-formula">DMS</span> did not co-vary, indicating decoupled processes of production and conversion. The contribution of <span class="inline-formula">MeSH</span> to the sulfur budget (represented by <span class="inline-formula">DMS</span> <span class="inline-formula">+</span> <span class="inline-formula">MeSH</span>) was on average 20 % (and up to 50 %) higher than previously observed in the Atlantic and Pacific oceans, suggesting <span class="inline-formula">MeSH</span> as an important source of sulfur possibly emitted to the atmosphere. The potential importance of <span class="inline-formula">MeSH</span> was underlined by several correlations with bacterial taxa, including typical phytoplankton associates from the <i>Rhodobacteraceae</i> and <i>Flavobacteriaceae</i> families. Furthermore, the correlation of isoprene and chlorophyll <span class="inline-formula"><i>a</i></span> with <i>Alcanivorax</i> indicated a specific relationship with isoprene-producing phytoplankton. Overall, the demonstrated latitudinal and vertical patterns contribute to understanding how concentrations of central marine trace gases are linked with chemical and biological dynamics across oceanic waters.</p>https://bg.copernicus.org/articles/20/851/2023/bg-20-851-2023.pdf |
| spellingShingle | V. Gros B. Bonsang R. Sarda-Estève A. Nikolopoulos K. Metfies M. Wietz M. Wietz I. Peeken Concentrations of dissolved dimethyl sulfide (DMS), methanethiol and other trace gases in context of microbial communities from the temperate Atlantic to the Arctic Ocean Biogeosciences |
| title | Concentrations of dissolved dimethyl sulfide (DMS), methanethiol and other trace gases in context of microbial communities from the temperate Atlantic to the Arctic Ocean |
| title_full | Concentrations of dissolved dimethyl sulfide (DMS), methanethiol and other trace gases in context of microbial communities from the temperate Atlantic to the Arctic Ocean |
| title_fullStr | Concentrations of dissolved dimethyl sulfide (DMS), methanethiol and other trace gases in context of microbial communities from the temperate Atlantic to the Arctic Ocean |
| title_full_unstemmed | Concentrations of dissolved dimethyl sulfide (DMS), methanethiol and other trace gases in context of microbial communities from the temperate Atlantic to the Arctic Ocean |
| title_short | Concentrations of dissolved dimethyl sulfide (DMS), methanethiol and other trace gases in context of microbial communities from the temperate Atlantic to the Arctic Ocean |
| title_sort | concentrations of dissolved dimethyl sulfide dms methanethiol and other trace gases in context of microbial communities from the temperate atlantic to the arctic ocean |
| url | https://bg.copernicus.org/articles/20/851/2023/bg-20-851-2023.pdf |
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