Major deviations of iron complexation during 22 days of a mesoscale iron enrichment in the open Southern Ocean

Marie Boye, Jun Nishioka, Peter L. Croot, Patrick Laan, Klaas R. Timmermans, Hein J.W. de Baar

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The speciation of strongly chelated iron during the 22-day course of an iron enrichment experiment in the Atlantic sector of the Southern Ocean deviates strongly from ambient natural waters. Three iron additions (ferrous sulfate solution) were conducted, resulting in elevated dissolved iron concentrations and significant Fe(II) levels. Repeated vertical profiles for dissolved (filtrate 200 kDa–200 kDa–
Original languageEnglish
Pages (from-to)257-271
Number of pages15
JournalMarine Chemistry
Issue number3
Publication statusPublished - 2005


  • Organic speciation
  • Iron enrichment experiment
  • Southern Ocean

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