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Elsevier, Deep Sea Research Part II: Topical Studies in Oceanography, 5-7(55), p. 559-565

DOI: 10.1016/j.dsr2.2008.01.002



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The natural iron fertilization experiment KEOPS (KErguelen Ocean and Plateau compared Study): An overview

Journal article published in 2008 by Stéphane Blain, Bernard Quéguiner ORCID, Tw Trull
This paper is available in a repository.
This paper is available in a repository.

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When the first scientific voyages went to the Southern Ocean, high levels of living biomass were observed in the vicinity of islands. Hart (1942) was the first to mention that the abundant biomass might be due to the release of oligoelements like iron from the island. This hypothesis, however, remained unverified for more than half a century because of the experimental difficulties in properly manipulating water with subnanomolar iron concentrations. When John Martin formulated the iron hypothesis (Martin, 1990) and provided the first supporting evidence of it, he also suggested using the chlorophyll plume observed westward of the Galapagos Island in the Equatorial Pacific as a natural iron fertilization experiment.