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Science 5 December 2008:
Vol. 322. no. 5907, p. 1466
DOI: 10.1126/science.1161096
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Technical Comments

Comment on "Phytoplankton Calcification in a High-CO2 World"

Ulf Riebesell1*, Richard G. J. Bellerby2, Anja Engel3, Victoria J. Fabry4, David A. Hutchins5, Thorsten B. H. Reusch1, Kai G. Schulz1 and François M. M. Morel6

1 Leibniz Institute of Marine Sciences, IFM-GEOMAR, D-24105 Kiel, Germany.
2 Bjerknes Centre for Climate Research, University of Bergen, N-5020 Bergen, Norway.
3 Alfred Wegener Institute of Polar and Marine Research, D-27570 Bremerhaven, Germany.
4 Department of Biological Sciences, California State University San Marcos, San Marcos, CA 92096, USA.
5 Department of Biological Sciences, University of Southern California, Los Angeles, CA 90089, USA.
6 Department of Geosciences, Princeton University, Princeton, NJ 08544, USA.


Figure 1 Fig. 1. Daily production of (A) particulate inorganic carbon (PIC) and (B) particulate organic carbon (POC) normalized to POC biomass for E. huxleyi cultures under different PCO2. Each color represents one independent experiment in (12). Calculations are based on cell numbers at the beginning and end of the experiments and cellular PIC and POC content at the time of incubation (data provided by M. D. Iglesias-Rodriguez). [View Larger Version of this Image (9K GIF file)]
 

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