Comment on "Phytoplankton calcification in a high-CO2 world".
Iglesias-Rodriguez et al. (Research Articles, 18 April 2008, p. 336) reported that the coccolithophore Emiliania huxleyi doubles its organic matter production and calcification in response to high carbon dioxide partial pressures, contrary to previous laboratory and field studies. We argue that shortcomings in their experimental protocol compromise the interpretation of their data and the resulting conclusions.
Riebesell
Ulf
U
Leibniz Institute of Marine Sciences, IFM-GEOMAR, D-24105 Kiel, Germany. uriebesell@ifm-geomar.de
Bellerby
Richard G J
RG
Engel
Anja
A
Fabry
Victoria J
VJ
Hutchins
David A
DA
Reusch
Thorsten B H
TB
Schulz
Kai G
KG
Morel
François M M
FM
D001272:Atmosphere; D002113:Calcification, Physiologic; D002245:Carbon Dioxide; D006863:Hydrogen-Ion Concentration; D009792:Oceans and Seas; D010788:Photosynthesis; D010839:Phytoplankton / Q000254:growth & development / Q000502:physiology*; D012107:Research Design
D002245:Carbon Dioxide