Geographical gradients of dissolved vitamin B12 in the Mediterranean sea Authors Bonnet, Sophie Tovar-Sanchez, A. Panzeca, C. Duarte, C.M. Ortega-Retuerta, E. Sanudo-Wulhelmy, S.A. Publication Date Jan 01, 2013 Source Horizon / Pleins textes Keywords Milieu Marin Phytoplancton Bacterie Croissance Facteur Limitant Chlorophylle Vitamine B12 Language English License Unknown External links Full record on documentation.ird.fr