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Biogeosciences An interactive open-access journal of the European Geosciences Union
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Volume 13, issue 24
Biogeosciences, 13, 6625–6635, 2016
https://doi.org/10.5194/bg-13-6625-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

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

Biogeosciences, 13, 6625–6635, 2016
https://doi.org/10.5194/bg-13-6625-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Research article 16 Dec 2016

Research article | 16 Dec 2016

Effect of ocean acidification on the structure and fatty acid composition of a natural plankton community in the Baltic Sea

Rafael Bermúdez et al.
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Almén, A., Vehmaa, A., Brutemark, A., and Engström-öst, J.: Coping with climate change? Copepods experience drastic variations in their physicochemical environment on a diurnal basis, J. Exp. Mar. Biol. Ecol., 460, 120–128, https://doi.org/10.1016/j.jembe.2014.07.001, 2014.
Almén, A.-K., Vehmaa, A., Brutemark, A., Bach, L., Lischka, S., Stuhr, A., Furuhagen, S., Paul, A., Bermúdez, J. R., Riebesell, U., and Engström-Öst, J.: Negligible effects of ocean acidification on Eurytemora affinis (Copepoda) offspring production, Biogeosciences, 13, 1037–1048, https://doi.org/10.5194/bg-13-1037-2016, 2016.
Arts, M. T., Ackman, R. G., and Holub, B. J.: “Essential fatty acids” in aquatic ecosystems: a crucial link between diet and human health and evolution, Can. J. Fish. Aquat. Sci., 58, 122–137, https://doi.org/10.1139/f00-224, 2001.
Bermúdez, R., Feng, Y., Roleda, M. Y., Tatters, A. O., Hutchins, D. a., Larsen, T., Boyd, P. W., Hurd, C. L., Riebesell, U., and Winder, M.: Long-term conditioning to elevated pCo2 and warming influences the fatty and amino acid composition of the diatom Cylindrotheca fusiformis, PLoS One, 10, e0123945, https://doi.org/10.1371/journal.pone.0123945, 2015.
Biswas, H., Cros, A., Yadav, K., Ramana, V. V., Prasad, V. R., Acharyya, T., and Babu, P. V. R.: The response of a natural phytoplankton community from the Godavari River Estuary to increasing CO2 concentration during the pre-monsoon period, J. Exp. Mar. Biol. Ecol., 407, 284–293, https://doi.org/10.1016/j.jembe.2011.06.027, 2011.
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Increasing CO2 is changing seawater chemistry towards a lower pH, which affects marine organisms. We investigate the response of a brackish plankton community to a CO2 gradient in terms of structure and fatty acid composition. The structure was resilient to CO2 and did not diverge between treatments. FA was influenced by community structure, which was driven by silicate and phosphate. This suggests that CO2 effects are dampened in communities already experiencing high natural pCO2 fluctuation.
Increasing CO2 is changing seawater chemistry towards a lower pH, which affects marine...
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