Articles | Volume 15, issue 10
Biogeosciences, 15, 3203–3222, 2018
Biogeosciences, 15, 3203–3222, 2018
Research article
30 May 2018
Research article | 30 May 2018

Effects of elevated CO2 and temperature on phytoplankton community biomass, species composition and photosynthesis during an experimentally induced autumn bloom in the western English Channel

Matthew Keys et al.

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Cited articles

Atkinson, D., Ciotti, B. J., and Montagnes, D. J. S.: Protists decrease in size linearly with temperature: ca. 2.5 % C-1, Proc. R. Soc. B. Biol. Sci., 270, 2605–2611,, 2003. 
Badger, M. R., Andrews, T. J., Whitney, S. M., Ludwig, M., Yellowlees, D. C., Leggat, W., and Price, G. D.: The diversity and coevolution of Rubisco , plastids , pyrenoids , and chloroplast-based CO2-concentrating mechanisms in algae 1, Can. J. Bot., 76, 1052–1071, 1998. 
Baragi, L. V., Khandeparker, L., and Anil, A. C.: Influence of elevated temperature and pCO2 on the marine periphytic diatom Navicula distans and its associated organisms in culture, Hydrobiologia, 762, 127–142,, 2015. 
Barnes, M. K., Tilstone, G. H., Smyth, T. J., Widdicombe, C. E., Gloël, J., Robinson, C., Kaiser, J., and Suggett, D. J.: Drivers and effects of Karenia mikimotoi blooms in the western English Channel, Prog. Oceanogr., 137, 456–469,, 2015. 
Short summary
We conducted a microcosm experiment on a natural phytoplankton community under year 2100 predicted CO2 concentrations and temperature. Biomass and photosynthetic rates were significantly increased by elevated CO2 and elevated temperature. In contrast, the combined influence of these two factors had little effect. This suggests coastal phytoplankton productivity may not be influenced by future conditions. However, the combined influence promoted the greatest diversity and increased HAB species.
Final-revised paper