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Sea foams are ephemeral hotspots for distinctive bacterial communities contrasting sea-surface microlayer and underlying surface water

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dc.contributor.authorRahlff, Janina
dc.contributor.authorStolle, Christian
dc.contributor.authorGiebel, Helge-Ansgar
dc.contributor.authorMustaffa, Nur Ili Hamizah
dc.contributor.authorWurl, Oliver
dc.contributor.authorHerlemann, Daniel P.R.
dc.contributor.departmentChair of Hydrobiology and Fisheryeng
dc.date.accessioned2023-03-29T09:13:42Z
dc.date.available2023-03-29T09:13:42Z
dc.date.issued2021
dc.description.abstractThe occurrence of foams at oceans’ surfaces is patchy and generally short-lived, but a detailed understanding of bacterial communities inhabiting sea foams is lacking. Here, we investigated how marine foams differ from the sea-surface microlayer (SML), a <1-mm-thick layer at the air–sea interface, and underlying water from 1 m depth. Samples of sea foams, SML and underlying water collected from the North Sea and Timor Sea indicated that foams were often characterized by a high abundance of small eukaryotic phototrophic and prokaryotic cells as well as a high concentration of surface-active substances (SAS). Amplicon sequencing of 16S rRNA (gene) revealed distinctive foam bacterial communities compared with SML and underlying water, with high abundance of Gammaproteobacteria. Typical SML dwellers such as Pseudoalteromonas and Vibrio were highly abundant, active foam inhabitants and thus might enhance foam formation and stability by producing SAS. Despite a clear difference in the overall bacterial community composition between foam and SML, the presence of SML bacteria in foams supports the previous assumption that foam is strongly influenced by the SML. We conclude that active and abundant bacteria from interfacial habitats potentially contribute to foam formation and stability, carbon cycling and air–sea exchange processes in the ocean.eng
dc.description.abstractThis work was supported by the European Research Council (ERC) project ”Parameterization of the Sea-Surface Microlayer Effect” (PASSME, grant number GA336408), and the Leibniz Association project ”Marine biogenic production, organic aerosols and maritime clouds: a process chain” (MarParCloud, grant number SAW-2016-TROPOS-2). DPRH was supported by the European Regional Development Fund/Estonian Research Council-funded Mobilitas Pluss Top Researcher (grant numbers MOBTT24 and P200028PKKH).eng
dc.description.sponsorshipThis work was supported by the European Research Council (ERC) project ”Parameterization of the Sea-Surface Microlayer Effect” (PASSME, grant number GA336408), and the Leibniz Association project ”Marine biogenic production, organic aerosols and maritime clouds: a process chain” (MarParCloud, grant number SAW-2016-TROPOS-2). DPRH was supported by the European Regional Development Fund/Estonian Research Council-funded Mobilitas Pluss Top Researcher (grant numbers MOBTT24 and P200028PKKH).eng
dc.identifier.issn0168-6496
dc.identifier.publicationFEMS Microbiology Ecology, 97, 2021, fiab035eng
dc.identifier.urihttps://doi.org/10.1093/femsec/fiab035
dc.identifier.urihttps://doi.org/10.1111/fwb.13815
dc.publisherOxford University Presseng
dc.rightsCreative Commons Attribution-NonCommercial 4.0 International (CC BY-NC 4.0) ; openAccesseng
dc.rights© The Author(s) 2021eng
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/
dc.subjectair–sea interfaceeng
dc.subjectsurfactantseng
dc.subjectparticleseng
dc.subject16S rRNA amplicon sequencingeng
dc.subjectneustoneng
dc.subjectarticleseng
dc.titleSea foams are ephemeral hotspots for distinctive bacterial communities contrasting sea-surface microlayer and underlying surface watereng
dc.typeArticleeng

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