Bacterial community structure influenced by Coscinodiscus sp in the Vistula 
river plume

Ameryk, A.; Hahnke, R.; Gromisz, S.; Kownacka, J.; Zalewski, M.; Szymanek, L.; Calkiewicz, J.; Dunalska, J.; Harder, J.

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Bacterial community structure influenced by Coscinodiscus sp in the Vistula river plume

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Hahnke, R.
Department of Microbiology, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Harder, J.
Department of Microbiology, Max Planck Institute for Marine Microbiology, Max Planck Society;

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Citation

Ameryk, A., Hahnke, R., Gromisz, S., Kownacka, J., Zalewski, M., Szymanek, L., et al. (2014). Bacterial community structure influenced by Coscinodiscus sp in the Vistula river plume. Oceanologia, 56(4), 825-856.

Cite as: https://hdl.handle.net/21.11116/0000-0001-C61B-2

Abstract

The Gulf of Gdansk is influenced by freshwater inflow from the River Vistula and by a wind-driven current along the coast. Bacterial communities from five stations along a salinity gradient were sampled during one day and analysed by terminal restriction fragment length polymorphism (T-RFLP), catalysed reporter deposition-fluorescence in situ hybridisation (CARD-FISH) and 16S rRNA gene libraries. On the day of sampling, we observed a probable current-driven seawater influx into the inner part of the gulf that separated the gulf into distinct water bodies. Members of the diatom Coscinodisrus sp. dominated one of these water bodies and influenced the bacterial community. The coexistence of typically freshwater and marine bacterioplankton populations in the Vistula river plume suggested an integration of some freshwater populations into the Baltic Sea bacterioplankton.