Articles | Volume 14, issue 2
Biogeosciences, 14, 285–300, 2017
https://doi.org/10.5194/bg-14-285-2017
Biogeosciences, 14, 285–300, 2017
https://doi.org/10.5194/bg-14-285-2017

Research article 19 Jan 2017

Research article | 19 Jan 2017

The fate of fixed nitrogen in marine sediments with low organic loading: an in situ study

Stefano Bonaglia et al.

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AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (Editor review) (12 Dec 2016) by Jack Middelburg
AR by Stefano Bonaglia on behalf of the Authors (21 Dec 2016)  Author's response    Manuscript
ED: Publish subject to technical corrections (27 Dec 2016) by Jack Middelburg
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Short summary
Understanding nitrogen (N) cycling mechanisms in the ocean is crucial for improving ecosystem management. Here we study N processes by in situ lander and isotope tracer techniques in – so far overlooked – sediments with low organic loads. Denitrification and anammox are the main N transformation processes. However, we demonstrate high contribution of dissimilatory nitrate reduction to ammonium, which recycles a major portion of fixed N to the water column and sustains primary production.
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