Organic Matter Stoichiometry, Flux, and Oxygen Control Nitrogen Loss in the Ocean

Author:

Babbin Andrew R.1,Keil Richard G.2,Devol Allan H.2,Ward Bess B.1

Affiliation:

1. Department of Geosciences, Princeton University, Guyot Hall, Princeton, NJ 08544, USA.

2. School of Oceanography, University of Washington, Box 357940, Seattle, WA 98195, USA.

Abstract

Understanding N Loss Biologically available nitrogen (N) is essential for marine plants, and shortage of N limits photosynthesis. Marine N can be removed by denitrification and anaerobic ammonia oxidation (anammox) processes, but what controls the balance between these two pathways? Babbin et al. (p. 406 , published online 10 April) tested the effects of stoichiometry on N removal in the lab and found that the balance of N loss processes depends on the stoichiometry of the source organic material.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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