Influence of Fe availability on V-normalized contents.

<p>Mean V-normalized contents of C (A), N (B) and Chl <i>a</i> (C) of <i>C. watsonii</i> related to dFe and Fe′ concentrations, in log scale. Error bars represent standard deviation; different letters correspond to statistically different means (<i>p</i><0.05) and the black bar indicates the region of expected Fe hydroxide precipitation.