Supplement to: Croot, Peter L; Andersson, Karen; Öztürk, Murat; Turner, David R (2004): The distribution and speciation of iron along 6°E in the Southern Ocean. Deep Sea Research Part II: Topical Studies in Oceanography, 51(22-24), 2857-2879, https://doi.org/10.1016/j.dsr2.2003.10.012