2021 Fiscal Year Annual Research Report
Microbial Communities in the Sea Surface Microlayer as a Potential Source of Biogenic Ice Nuclei in Oceanic Regions
| Project/Area Number |
18K14787
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| Research Institution | National Institute of Polar Research |
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Principal Investigator |
WONG SHUKUAN 国立極地研究所, 国際北極環境研究センター, 特任研究員 (60808400)
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| Project Period (FY) |
2018-04-01 – 2022-03-31
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| Keywords | Sea Surface Microlayer / Ice Nucleation Bacteria / Bacterioneuston |
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| Outline of Annual Research Achievements |
The purpose of this study is to understand the roles of microbes and organic matter originating from the sea surface microlayer (SML) in controlling the distribution and abundance of ice nuclei (IN) in the atmosphere. The lack of understanding and research in the field of SML hampers the effort to predict the contribution of marine aerosol towards the global climate and radiation budget accurately. In this study, we managed to identify the ice nucleating bacteria from the SML and from the water body directly below it (UW). We also managed to study the characteristic and nature of the ice nucleation protein present in the ice nucleating bacteria.
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