Effect of carbonate ion concentration and irradiance on calcification in foraminifera F. Lombard, R. E. da Rocha, J. Bijma, and J.-P. Gattuso LSCE/IPSL, laboratoire CEA/CNRS/UVSQ, LSCE-Vallée, Bât. 12, avenue de la Terrasse, 91198 Gif-sur-Yvette CEDEX, France Alfred Wegener Institute for Polar and Marine Research, Am Handelshafen 12, 27570 Bremerhaven, Germany INSU-CNRS, Laboratoire d’Océanogra...