Rahav, Eyal (2024): Spatial distribution of Sea-spray aerosols' viable prokaryotes and virus-like particles during RV METEOR cruise M197, Eastern Mediterranean Sea [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.974259 (DOI registration in progress)
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Abstract:
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.
Funding:
Helmholtz Association of German Research Centres (HGF), grant/award no. EMS FORE: Eastern Mediterranean Sea as model region to study future changes in the ocean
Coverage:
Median Latitude: 34.736279 * Median Longitude: 25.983026 * South-bound Latitude: 33.326333 * West-bound Longitude: 19.194317 * North-bound Latitude: 37.551217 * East-bound Longitude: 34.152267
Date/Time Start: 2024-01-06T09:00:00 * Date/Time End: 2024-02-04T09:00:01
Minimum DEPTH, water: 5 m * Maximum DEPTH, water: 5 m
Event(s):
M197_0_Underway-6 * Latitude Start: 33.440720 * Longitude Start: 32.437580 * Latitude End: 37.497000 * Longitude End: 18.728950 * Date/Time Start: 2024-01-06T18:36:10 * Date/Time End: 2024-02-04T07:32:58 * Elevation Start: -1598.0 m * Elevation End: -3308.0 m * Campaign: M197 (EMS PS) * Basis: Meteor (1986) * Method/Device: Water pump (PUMP) * Comment: Profilstart; Profilende
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Sample ID | Sample ID | Rahav, Eyal | |||
| 2 | DEPTH, water | Depth water | m | Rahav, Eyal | Geocode | |
| 3 | DATE/TIME | Date/Time | Rahav, Eyal | Geocode | ||
| 4 | LATITUDE | Latitude | Rahav, Eyal | Geocode | ||
| 5 | LONGITUDE | Longitude | Rahav, Eyal | Geocode | ||
| 6 | Prokaryotes | Prok | #/m3 | Rahav, Eyal | Flow cytometry | total cells |
| 7 | Prokaryotes, viable | Prok viab | #/m3 | Rahav, Eyal | Circulating tumor cells (CTC) kit | |
| 8 | Virus-like particles | VLP | #/m3 | Rahav, Eyal | SYTO9 staining | |
| 9 | Comment | Comment | Rahav, Eyal |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
143 data points