Effect of Zn, Mn, and Fe on Cd accumulation in phytoplankton: Implications for oceanic Cd cycling

摘要

Cd and phosphate concentrations in seawater are closely related, suggesting that Cd distributions, like those of PO_4,a re controlled by algal uptake and regeneration. But the factors that control Cd levels in phytoplankton and Their influence on oceanic Cd versus PO_4 relationships are poorly known. We examined the effect of important Controlling factors (free ion concentrations of Cd, Zn, and Mn and Fe limitation of growth rate) on Cd accumulation By an oceanic diatom (Thalassiosira oceanica).