Articles | Volume 14, issue 16
Research article
29 Aug 2017
Research article |  | 29 Aug 2017

Alterations in microbial community composition with increasing fCO2: a mesocosm study in the eastern Baltic Sea

Katharine J. Crawfurd, Santiago Alvarez-Fernandez, Kristina D. A. Mojica, Ulf Riebesell, and Corina P. D. Brussaard


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Latest update: 13 Jul 2024
Short summary
Carbon dioxide (CO2) is increasing in the atmosphere and oceans. To simulate future conditions we manipulated CO2 concentrations of natural Baltic seawater in 55 m3 bags in situ. We saw increased growth rates and abundances of the smallest-sized eukaryotic phytoplankton and reduced abundances of other phytoplankton with increased CO2. Viral and bacterial abundances were also affected. This would lead to more carbon recycling in the surface water and affect marine food webs and the carbon cycle.
Final-revised paper