Articles | Volume 13, issue 16
Biogeosciences, 13, 4707–4719, 2016
https://doi.org/10.5194/bg-13-4707-2016

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

Biogeosciences, 13, 4707–4719, 2016
https://doi.org/10.5194/bg-13-4707-2016

Research article 22 Aug 2016

Research article | 22 Aug 2016

Ocean acidification decreases plankton respiration: evidence from a mesocosm experiment

Kristian Spilling et al.

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Cited articles

Beardall, J. and Giordano, M.: Ecological implications of microalgal and cyanobacterial CO2 concentrating mechanisms, and their regulation, Funct. Plant. Biol., 29, 335–347, 2002.
Beldowski, J., Löffler, A., Schneider, B., and Joensuu, L.: Distribution and biogeochemical control of total CO2 and total alkalinity in the Baltic Sea, J. Marine Syst., 81, 252–259, 2010.
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.
Boxhammer, T., Bach, L. T., Czerny, J., and Riebesell, U.: Technical note: Sampling and processing of mesocosm sediment trap material for quantitative biogeochemical analysis, Biogeosciences, 13, 2849–2858, https://doi.org/10.5194/bg-13-2849-2016, 2016.
Brussaard, C. P. D., Noordeloos, A. A. M., Witte, H., Collenteur, M. C. J., Schulz, K., Ludwig, A., and Riebesell, U.: Arctic microbial community dynamics influenced by elevated CO2 levels, Biogeosciences, 10, 719–731, https://doi.org/10.5194/bg-10-719-2013, 2013.
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Anthropogenic carbon dioxide (CO2) emissions are reducing the pH in the world's oceans. We determined the plankton community composition and measured primary production, respiration rates and carbon export during an ocean acidification experiment. Our results suggest that increased CO2 reduced respiration and increased net carbon fixation at high CO2. This did not, however, translate into higher carbon export, and consequently did not work as a negative feedback mechanism for decreasing pH.
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