Autumn to spring microbial community in the northern Baltic Sea : temporal variability in bacterial, viral and nanoflagellate abundance during the cold-water season

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dc.contributor.author Kaikkonen, Laura
dc.contributor.author Enberg, Sara
dc.contributor.author Blomster, Jaanika
dc.contributor.author Luhtanen, Anne-Mari
dc.contributor.author Autio, Riitta
dc.contributor.author Rintala, Janne-Markus
dc.date.accessioned 2021-09-23T12:03:07Z
dc.date.available 2021-09-23T12:03:07Z
dc.date.issued 2020
dc.identifier.citation Kaikkonen, L., Enberg, S., Blomster, J. et al. Autumn to spring microbial community in the northern Baltic Sea: temporal variability in bacterial, viral and nanoflagellate abundance during the cold-water season. Polar Biol 43, 1193–1206 (2020). https://doi.org/10.1007/s00300-020-02700-8 fi
dc.identifier.issn 0722-4060
dc.identifier.uri http://hdl.handle.net/10138/334563
dc.description.abstract Marine microbial communities undergo drastic changes during the seasonal cycle in high latitude seas. Despite the dominance of microbial biomass in the oceans, comprehensive studies on the seasonal changes of microbial plankton during the complete winter period are lacking. To study the seasonal variation in abundance of the microbial community, water samples were collected weekly in the Northern Baltic Sea from October to May. During ice cover from mid-January to April, samples from the sea ice and the underlying water were taken in addition to the water column samples. Abundances of bacteria, virus-like particles, nanoflagellates, and chlorophyll a concentrations were measured from sea ice, under-ice water, and the water column, and examined in relation to environmental conditions. All studied organisms had clear seasonal changes in abundance, and the sea-ice microbial community had an independent wintertime development compared to the water column. Bacteria were observed to have a key role in the biotic interactions in both ice and the water column, and the dormant period during the cold-water months (October–May) was limited to before ice formation. Our results provide the first insights into the temporal dynamics of bacteria and viruses during the whole cold-water season (October–May) in coastal high latitude seas, and demonstrate that changes in the environmental conditions are likely to affect bacterial dynamics and have implications on trophic interactions. fi
dc.language.iso en fi
dc.publisher Springer Nature fi
dc.relation.ispartofseries Polar Biology 43 9 (2020) fi
dc.rights CC BY 4.0
dc.subject bacteria fi
dc.subject Baltic Sea fi
dc.subject nanoflagellates fi
dc.subject VLP fi
dc.subject sea ice fi
dc.subject time series fi
dc.title Autumn to spring microbial community in the northern Baltic Sea : temporal variability in bacterial, viral and nanoflagellate abundance during the cold-water season fi
dc.type Article fi
dc.identifier.laitoskoodi Suomen ympäristökeskus fi
dc.subject.ysa bakteerit fi
dc.subject.ysa itämeri fi
dc.subject.ysa nanoflagellaatit fi
dc.subject.ysa VLP fi
dc.subject.ysa meren jää fi
dc.subject.ysa aikasarjat fi
dc.identifier.doi https://doi.org/10.1007/s00300-020-02700-8

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