The Angola Gyre is a hotspot of dinitrogen fixation in the South Atlantic Ocean

Tanya Marshall; Julie Granger; Karen L. Casciotti; Kirstin Dähnke; Kay-Christian Emeis; Dario Marconi; Matthew R. McIlvin; Abigail E. Noble; Mak A. Saito; Daniel M. Sigman; Sarah E. Fawcett

doi:10.1038/s43247-022-00474-x

Communications Earth & Environment (Jun 2022)

The Angola Gyre is a hotspot of dinitrogen fixation in the South Atlantic Ocean

Tanya Marshall,
Julie Granger,
Karen L. Casciotti,
Kirstin Dähnke,
Kay-Christian Emeis,
Dario Marconi,
Matthew R. McIlvin,
Abigail E. Noble,
Mak A. Saito,
Daniel M. Sigman,
Sarah E. Fawcett

Affiliations

Tanya Marshall: Department of Oceanography, University of Cape Town
Julie Granger: Department of Marine Sciences, University of Connecticut
Karen L. Casciotti: Department of Earth System Science, Stanford University
Kirstin Dähnke: Helmholtz-Zentrum Hereon, Institute of Carbon Cycles
Kay-Christian Emeis: Helmholtz-Zentrum Hereon, Institute of Carbon Cycles
Dario Marconi: Department of Geosciences, Princeton University
Matthew R. McIlvin: Schmidt Ocean Institute
Abigail E. Noble: Department of Marine Science and Geochemistry, Woods Hole Oceanographic Institution
Mak A. Saito: Department of Marine Science and Geochemistry, Woods Hole Oceanographic Institution
Daniel M. Sigman: Department of Geosciences, Princeton University
Sarah E. Fawcett: Department of Oceanography, University of Cape Town

DOI: https://doi.org/10.1038/s43247-022-00474-x
Journal volume & issue: Vol. 3, no. 1
pp. 1 – 10

Abstract

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Between 28 and 100% of nitrogen fixation in the South Atlantic occurs within the Angola Gyre and is potentially fuelled by supply of bioavailable iron from margin sediments and excess phosphorus, according to an analysis of observational hydrographic data and nitrate isotope ratios.

Published in Communications Earth & Environment

ISSN: 2662-4435 (Online)
Publisher: Nature Portfolio
Country of publisher: United Kingdom
LCC subjects: Science: Geology; Geography. Anthropology. Recreation: Environmental sciences
Website: https://www.nature.com/commsenv/

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