Spatial distribution of Sea-spray aerosols' viable prokaryotes and virus-like particles during RV METEOR cruise M197, Eastern Mediterranean Sea

DOI

We quantified the abundance of viable (live) microbes and virus-like cells in freshly generated sea-spray. To this end, we pumped surface seawater during a month-long cruise across the Eastern Mediterranean Sea (Jan-Feb. 2024, RV. Meteor cruise ID M197). We determined how microbial viability changes once they are transferred from surface water into sea-spray. Our results show that the number of live bacteria in sea-spray corresponds to chlorophyll-a in surface water, a measure algal biomass and inversely corresponds to surface water temperatures. The higher the algal biomass in surface water the higher microbial viability in sea-spray was observed. In contrast, viruses showed the opposite trend, being more common in areas of oligotrophic conditions characterized by low algal biomass. When comparing sea-spray to the surface water from which it originated, we found that about 15% of the microbes died in the process of becoming airborne. Those that survived the aerosolization and remained alive were just as productive as those in the surface seawater. This study gives a better understanding of what happens to marine microbes when they get into the air via sea spray and how they might impact the environment.

Identifier
DOI https://doi.pangaea.de/10.1594/PANGAEA.974259
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.974259
Provenance
Creator Rahav, Eyal ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference Helmholtz Association of German Research Centres https://doi.org/10.13039/501100001656 Crossref Funder ID EMS FORE Eastern Mediterranean Sea as model region to study future changes in the ocean
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 143 data points
Discipline Earth System Research
Spatial Coverage (19.194W, 33.326S, 34.152E, 37.551N)
Temporal Coverage Begin 2024-01-06T09:00:00Z
Temporal Coverage End 2024-02-04T09:00:01Z