Biological uptake and reversible scavenging of zinc in the global ocean

Controlling zinc in the oceans Zinc, a key micronutrient for marine phytoplankton, has a global distribution remarkably similar to that of silicic acid, even though Zn and Si have very different biogeochemical cycles. Weber et al. investigated why this is so by combining model calculations and obser...

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Bibliographic Details
Published in:Science
Main Authors: Weber, Thomas, John, Seth, Tagliabue, Alessandro, DeVries, Tim
Other Authors: National Science Foundation, Simons Foundation, Natural Environment Research Council
Format: Article in Journal/Newspaper
Language:English
Published: American Association for the Advancement of Science (AAAS) 2018
Subjects:
Southern Ocean
Online Access:http://dx.doi.org/10.1126/science.aap8532
https://syndication.highwire.org/content/doi/10.1126/science.aap8532
https://www.science.org/doi/pdf/10.1126/science.aap8532
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Summary:Controlling zinc in the oceans Zinc, a key micronutrient for marine phytoplankton, has a global distribution remarkably similar to that of silicic acid, even though Zn and Si have very different biogeochemical cycles. Weber et al. investigated why this is so by combining model calculations and observations. They found that biological uptake in the Southern Ocean and reversible scavenging of Zn onto sinking particles both affect the distribution of Zn in the ocean. Thus, Zn and Si distributions will be affected differently by future changes in ocean temperature, pH, and carbon fluxes. Science , this issue p. 72

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