Size‐fractionated iron concentrations in the water column of the western North Atlantic Ocean
Open Access
- 1 July 1994
- journal article
- research article
- Published by Wiley in Limnology and Oceanography
- Vol. 39 (5) , 1119-1129
- https://doi.org/10.4319/lo.1994.39.5.1119
Abstract
We used an improved adsorptive cathodic stripping square‐wave voltametry method to determine vertical profiles of three operationally defined fractions of iron in the western North Atlantic Ocean. “Dissolved Fe” (0.4‐µm fraction) increased from 0.1 nM in the surface water to 1.3 nM at depths below 1,000 m. Our results suggest the need to consider the temporal variation of iron and its size fractions in seawater if we are to understand the influence of iron on phytoplankton production in the ocean.Keywords
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