Figure 13.
Regressions of dissolved trace metals against phosphate, and dCu against dZn, for near-surface polynya samples.
Concentrations of dissolved trace metals (nmol kg−1) are shown regressed against phosphate (µmol kg−1) for near-surface (upper 11 m) polynya samples for (A) dFe, (B) dMn, (C) dZn, (D) dCu and (E) dNi. In (F) dCu is plotted against dZn for two different depth intervals: 0–11 m (red symbols and red regression equation) and > 11 m (black symbols and black regression equation). Symbol shapes represent sub-regions of the polynya as indicated by corresponding symbols in Figure 1D. Regression equation not shown in (A) because a linear fit was not significant.
