Articles | Volume 15, issue 12
https://doi.org/10.5194/bg-15-3691-2018
https://doi.org/10.5194/bg-15-3691-2018
Research article
 | 
19 Jun 2018
Research article |  | 19 Jun 2018

Population-specific responses in physiological rates of Emiliania huxleyi to a broad CO2 range

Yong Zhang, Lennart T. Bach, Kai T. Lohbeck, Kai G. Schulz, Luisa Listmann, Regina Klapper, and Ulf Riebesell

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Cited articles

Bach, L. T., Riebesell, U., and Schulz, K. G.: Distinguishing between the effects of ocean acidification and ocean carbonation in the coccolithophore Emiliania huxleyi, Limnol. Oceanogr., 56, 2040–2050, https://doi.org/10.4319/lo.2011.56.6.2040, 2011. 
Bach, L. T., Riebesell, U., Gutowska, M. A., Federwisch, L., and Schulz, K. G.: A unifying concept of coccolithophore sensitivity to changing carbonate chemistry embedded in an ecological framework, Prog. Oceanogr., 135, 125–138, https://doi.org/10.1016/j.pocean.2015.04.012, 2015. 
Balch, W. M., Drapeau, D. T., Bowler, B. C., Lyczkowski, E. R., Lubelczyk, L. C., Painter, S. C., and Poulton, A. J.: Surface biological, chemical, and optical properties of the Patagonian Shelf coccolithophore bloom, the brightest waters of the Great Calcite Belt, Limnol. Oceanogr., 59, 1715–1732, https://doi.org/10.4319/lo.2014.59.5.1715, 2014. 
Blanco-Ameijeiras, S., Lebrato, M., Stoll, H. M., Iglesias-Rodriguez, D., Müller, M. N., Méndez-Vicente, A., and Oschlies, A: Phenotypic variability in the coccolithophore Emiliania huxleyi, PLoS ONE, 11, e0157697, https://doi.org/10.1371/journal.pone.0157697, 2016. 
Bradshaw, A. D.: Evolutionary significance of phenotypic plasticity in plants, Adv. Genet, 13, 115–155, https://doi.org/10.1016/S0065-2660(08)60048-6, 1965. 
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Short summary
To compare variations in physiological responses to pCO2 between populations, we measured growth, POC and PIC production rates at a pCO2 range from 120 to 2630 µatm for 17 strains of the coccolithophore Emiliania huxleyi from the Azores, Canary Islands, and Norwegian coast near Bergen. Optimal pCO2 for growth and POC production rates and tolerance to low pH was significantly higher for the Bergen population than the Azores and Canary Islands populations.
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