[Press Release] Dissolved iron distribution in the western and central subarctic Pacific

Phytoplankton growth is broadly limited by iron (Fe) availability in the subarctic Pacific. To investigate which Fe sources control the amplitude of seasonal variation in biogeochemical parameters in the subarctic Pacific, Assoc. Prof. Jun Nishioka (Division of Earth System Science) and Assoc. Prof. Hajime Obata (the University of Tokyo) examined the spatial variation in the west-to-east distribution of dissolved Fe (DFe) across the western and central subarctic Pacific. Results indicated that the western Fe-rich intermediate water is well explained by external sedimentary Fe sources and water transport systems from a subpolar marginal sea, the Sea of Okhotsk, and the continental margin. This research outcome is published in Limnology and Oceanography, a journal of the Association for the Sciences of Limnology and Oceanography.

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Research Press Release (PDF)