Photosynthetic Algae Feast on Form of Iron Found in Glacial Dust (3 of 4) (IMAGE)

American Association for the Advancement of Science (AAAS)

Photosynthetic Algae Feast on Form of Iron Found in Glacial Dust (3 of 4)

Caption

A glacial sampling site, where sediment that was ground up and dropped by a glacier was also distributed across a plain to the South Atlantic Ocean by glacial meltwater. This site is also directly upwind of the iron-limited sub-Antarctic Southern Ocean, where the iron in dust causes phytoplankton to grow. This material relates to a paper that appeared in the June 23, 2017, issue of Science Advances, published by AAAS. The paper, by E.M. Shoenfelt at Columbia University in New York, N.Y., and colleagues was titled, "High particulate iron(II) content in glacially sourced dusts enhances productivity of a model diatom."

Credit

[Credit: Michael R. Kaplan]

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