Inverse relationships (p < 0.05) were observed between TDFe, PFe and DFe inventories (µmol m^-2) and water column depth (m) (Spearman’s rank correlation coefficients = 0.65, 0.58 and 0.43, respectively). The increase in Fe inventories (especially in the case of TDFe and PFe forms) in sea ice when the bathymetry decreases suggests the importance of sedimentary and coastal inputs in supplying Fe-bearing particles to land-fast ice.