Biogeosciences
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Articles | Volume 15, issue 21
Articles | Volume 15, issue 21
https://doi.org/10.5194/bg-15-6451-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-15-6451-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 15, issue 21
Research article
 | 
02 Nov 2018
Research article |  | 02 Nov 2018

Dynamic mercury methylation and demethylation in oligotrophic marine water

Kathleen M. Munson, Carl H. Lamborg, Rene M. Boiteau, and Mak A. Saito

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Short summary
Methylmercury accumulates in marine organisms and is produced by bacterial processes in sediment systems. To date, the contribution of these processes to the marine water column is poorly understood. We measured noncellular production and breakdown of methylmercury in equatorial Pacific waters. We observed enhanced production in filtered waters that suggests noncellular processes result in rapid mercury transformations and, in turn, control methylmercury concentrations in the open ocean.
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