The chemical speciation of iron in the north-east Atlantic OceanBoye, M., Aldrich, A., Berg, C. M. G. V. D., Jong, J. T. M. D., Nirmaier, H., Veldhuis, M., Timmermans, K. R. & Baar, H. J. W. D., 2006, In : Deep Sea Research Part I: Oceanographic Research Papers. 53, 4, p. 667-683 17 p.
Research output: Contribution to journal › Article › Academic
The distribution of dissolved iron and its chemical speciation (organic complexation and redox speciation) were studied in the northeastern Atlantic Ocean along 23°W between 37 and 42°N at depths between 0 and 2000 m, and in the upper-water column (upper 200 m) at two stations further east at 45°N10°W and 40°N17°W in the early spring of 1998. The iron speciation data are here combined with phytoplankton data to suggest cyanobacteria as a possible source for the iron binding ligands. The organic Fe-binding ligand concentrations were greater than that of dissolved iron by a factor of 1.5–5, thus maintaining iron in solution at levels well above it solubility. The water column distribution of the organic ligand indicates in-situ production of organic ligands by the plankton (consisting mainly of the cyanobacteria Synechococcus sp.) in the euphotic layer and a remineralisation from sinking biogenic particles in deeper waters. Fe(II) concentrations varied from below the detection limit (
|Number of pages||17|
|Journal||Deep Sea Research Part I: Oceanographic Research Papers|
|Publication status||Published - 2006|
- Atlantic Ocean, Iron speciation, Organic ligands, Iron
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