Articles | Volume 19, issue 1
https://doi.org/10.5194/os-19-1-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/os-19-1-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
11 Jan 2023
Research article |
| 11 Jan 2023
| 11 Jan 2023
Dimethyl sulfide cycling in the sea surface microlayer in the southwestern Pacific – Part 1: Enrichment potential determined using a novel sampler
Alexia D. Saint-Macary
CORRESPONDING AUTHOR
National Institute of Water and Atmospheric Research, Wellington,
6021, New Zealand
Department of Marine Science, University of Otago, Dunedin, 9016, New
Zealand
Andrew Marriner
National Institute of Water and Atmospheric Research, Wellington,
6021, New Zealand
Theresa Barthelmeß
GEOMAR Helmholtz Centre for Ocean Research Kiel, 24148 Kiel, Germany
Stacy Deppeler
National Institute of Water and Atmospheric Research, Wellington,
6021, New Zealand
Karl Safi
National Institute of Water and Atmospheric Research, Hamilton, 3216,
New Zealand
Rafael Costa Santana
National Institute of Water and Atmospheric Research, Wellington,
6021, New Zealand
Department of Marine Science, University of Otago, Dunedin, 9016, New
Zealand
Mike Harvey
National Institute of Water and Atmospheric Research, Wellington,
6021, New Zealand
deceased
National Institute of Water and Atmospheric Research, Wellington,
6021, New Zealand
Department of Marine Science, University of Otago, Dunedin, 9016, New
Zealand
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Manuscript not accepted for further review
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A. M. S. McMillan, M. J. Harvey, R. J. Martin, A. M. Bromley, M. J. Evans, S. Mukherjee, and J. Laubach
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Related subject area
Approach: In situ Observations | Properties and processes: Biogeochemistry | Depth range: Surface | Geographical range: Deep Seas: South Pacific | Challenges: Oceans and climate
Dimethyl sulfide cycling in the sea surface microlayer in the southwestern Pacific – Part 2: Processes and rates
Alexia D. Saint-Macary, Andrew Marriner, Stacy Deppeler, Karl A. Safi, and Cliff S. Law
Ocean Sci., 18, 1559–1571, https://doi.org/10.5194/os-18-1559-2022, https://doi.org/10.5194/os-18-1559-2022, 2022
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To understand how dimethyl sulfide (DMS) enrichment is maintained in the sea surface microlayer (SML) while DMS is lost to the atmosphere, deck-board incubation was carried out to determine DMS sources and sinks. Our results showed that the phytoplankton composition played an essential role in DMS processes in the SML. However, all accumulated DMS processes were lower than the calculated air–sea DMS flux.
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Short summary
The uppermost oceanic layer was sampled to determine what can explain a potential dimethyl sulfide (DMS) enrichment in this environment. A novel sampling method was used, and the results showed that DMS was not as enriched as expected. Our results showed that the phytoplanktonic composition influenced the DMS concentration, confirming results from another study in this oceanic region. However, additional factors are required to observe a DMS enrichment in the uppermost oceanic layer.
The uppermost oceanic layer was sampled to determine what can explain a potential dimethyl...
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