Nitrogen cycling driven by organic matter export in the South Pacific oxygen minimum zone
"Oxygen minimum zones are expanding globally, and at present account for around 20–40% of oceanic nitrogen loss. Heterotrophic denitrification and anammox—anaerobic ammonium oxidation with nitrite—are responsible for most nitrogen loss in these low-oxygen waters. Anammox is particularly significant in the eastern tropical South Pacific, one of the largest oxygen minimum zones globally. "
Source: Nature Geoscience (2013)
Authors: Tim Kalvelage et al.