Biogeosciences
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Articles | Volume 13, issue 1
Articles | Volume 13, issue 1
https://doi.org/10.5194/bg-13-283-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-13-283-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.
Articles | Volume 13, issue 1
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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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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