Articles | Volume 13, issue 1
https://doi.org/10.5194/bg-13-283-2016
https://doi.org/10.5194/bg-13-283-2016
Research article
 | 
15 Jan 2016
Research article |  | 15 Jan 2016

Microbial methanogenesis in the sulfate-reducing zone of surface sediments traversing the Peruvian margin

J. Maltby, S. Sommer, A. W. Dale, and T. Treude

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AR: Author's response | RR: Referee report | ED: Editor decision
ED: Publish subject to minor revisions (Editor review) (10 Dec 2015) by Caroline P. Slomp
AR by Johanna Maltby on behalf of the Authors (10 Dec 2015)  Author's response    Manuscript
ED: Publish as is (21 Dec 2015) by Caroline P. Slomp
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Short summary
The concurrence of methanogenesis and sulfate reduction was investigated in surface sediments (0–25cm b.s.f.) traversing the Peruvian margin. Surface methanogenesis was mainly based on non-competitive substrates to avoid competition with sulfate reducers. Accordingly, surface methanogenesis was mainly controlled by the availability of labile organic matter. The high relevance of surface methanogenesis especially on the shelf indicates its underestimated role within benthic methane budgeting.
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