Articles | Volume 13, issue 1
Biogeosciences, 13, 283–299, 2016
https://doi.org/10.5194/bg-13-283-2016
Biogeosciences, 13, 283–299, 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 et al.

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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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