Articles | Volume 13, issue 21
Biogeosciences, 13, 6081–6093, 2016
https://doi.org/10.5194/bg-13-6081-2016

Special issue: Effects of rising CO2 on a Baltic Sea plankton...

Biogeosciences, 13, 6081–6093, 2016
https://doi.org/10.5194/bg-13-6081-2016

Reviews and syntheses 04 Nov 2016

Reviews and syntheses | 04 Nov 2016

Effects of ocean acidification on pelagic carbon fluxes in a mesocosm experiment

Kristian Spilling et al.

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Cited articles

Allgaier, M., Riebesell, U., Vogt, M., Thyrhaug, R., and Grossart, H.-P.: Coupling of heterotrophic bacteria to phytoplankton bloom development at different pCO2 levels: a mesocosm study, Biogeosciences, 5, 1007–1022, https://doi.org/10.5194/bg-5-1007-2008, 2008.
Amthor, J.: Respiration in a future, higher-CO2 world, Plant Cell Environ., 14, 13–20, 1991.
Badr, E.-S. A., Achterberg, E. P., Tappin, A. D., Hill, S. J., and Braungardt, C. B.: Determination of dissolved organic nitrogen in natural waters using high temperature catalytic oxidation, Trend. Anal. Chem., 22, 819–827, 2003.
Berggren, M., Lapierre, J.-F., and del Giorgio, P. A.: Magnitude and regulation of bacterioplankton respiratory quotient across freshwater environmental gradients, ISME J., 6, 984–993, 2012.
Bermúdez, J. R., Winder, M., Stuhr, A., Almén, A. K., Engström-Öst, J., and Riebesell, U.: Effect of ocean acidification on the structure and fatty acid composition of a natural plankton community in the Baltic Sea, Biogeosciences Discuss., https://doi.org/10.5194/bg-2015-669, in review, 2016.
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Short summary
We performed an experiment in the Baltic Sea in order to investigate the consequences of the increasing CO2 levels on biological processes in the free water mass. There was more accumulation of organic carbon at high CO2 levels. Surprisingly, this was caused by reduced loss processes (respiration and bacterial production) in a high-CO2 environment, and not by increased photosynthetic fixation of CO2. Our carbon budget can be used to better disentangle the effects of ocean acidification.
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