Articles | Volume 13, issue 5
https://doi.org/10.5194/bg-13-1367-2016
https://doi.org/10.5194/bg-13-1367-2016
Research article
 | 
04 Mar 2016
Research article |  | 04 Mar 2016

Benthic phosphorus cycling in the Peruvian oxygen minimum zone

Ulrike Lomnitz, Stefan Sommer, Andrew W. Dale, Carolin R. Löscher, Anna Noffke, Klaus Wallmann, and Christian Hensen

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The study presents a P budget including the P input from the water column, the P burial in the sediments, as well as the P release from the sediments. We found that the P input could not maintain the P release rates. Consideration of other P sources, e.g., terrigenous P and P released from the dissolution of Fe oxyhydroxides, showed that none of these can account for the missing P. Thus, it is likely that abundant sulfide-oxidizing bacteria release the missing P during our measurement period.
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