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

Journal article published in 2008 by Stéphane Blain, Bernard QuéguinerORCID, Tw Trull

Full text: Download

Publisher: Elsevier

Preprint: archiving allowed. Upload

Postprint: archiving allowed. Upload

Published version: archiving forbidden. Upload

Policy details (opens in a new window). Data provided by SHERPA/RoMEO

Contact authors Contact

Abstract
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.