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Journal Article

Airborne bacteria and particulate chemistry capture Phytoplankton bloom dynamics in an Arctic fjord

Authors

Feltracco,  Matteo
External Organizations;

Barbaro,  Elena
External Organizations;

Hoppe,  Clara J.M.
External Organizations;

Wolf,  Klara K.E.
External Organizations;

Spolaor,  Andrea
External Organizations;

Layton,  Rose
External Organizations;

/persons/resource/ckeuschn

Keuschnig,  Christoph
0 Pre-GFZ, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

Barbante,  Carlo
External Organizations;

Gambaro,  Andrea
External Organizations;

Larose,  Catherine
External Organizations;

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Citation

Feltracco, M., Barbaro, E., Hoppe, C. J., Wolf, K. K., Spolaor, A., Layton, R., Keuschnig, C., Barbante, C., Gambaro, A., Larose, C. (2021): Airborne bacteria and particulate chemistry capture Phytoplankton bloom dynamics in an Arctic fjord. - Atmospheric Environment, 256, 118458.
https://doi.org/10.1016/j.atmosenv.2021.118458


Cite as: https://gfzpublic.gfz-potsdam.de/pubman/item/item_5014256
Abstract
Primary biological aerosol particles and microorganisms are ubiquitous in the atmosphere. Investigations of airborne chemical markers and microbial communities are critical for identifying sources, transport and transformation processes of aerosols. One potential major source of airborne chemical compounds and microbial communities (e.g. L- and D-amino acids, Flavobacteria) could be related to phytoplankton blooms that occur during the spring season in Arctic fjord systems. Here, we conducted a field study in a polar environment to investigate the occurrence in coarse and fine particles of water-soluble compounds (major ions, carboxylic acids and free L- and D-amino acids) and airborne bacterial communities in aerosol samples. The sampling was conducted with a 6 day sampling frequency at the Gruvebadet observatory, close to Ny-Ålesund (Svalbard Islands). Glycine, D-amino acids and C4- organic acids increased during the exponential phase of a marine bloom that occurred in Kongsfjorden and started to drop at the beginning of the main-bloom phase. On the other hand, Polaribacter together with free L-amino acids overlapped with the Chlorophyll a peak and the subsequent decline, and thus might constitute a useful marker for the main-bloom phase.