Articles | Volume 14, issue 2
https://doi.org/10.5194/bg-14-325-2017
https://doi.org/10.5194/bg-14-325-2017
Research article
 | 
23 Jan 2017
Research article |  | 23 Jan 2017

Annual variability and regulation of methane and sulfate fluxes in Baltic Sea estuarine sediments

Joanna E. Sawicka and Volker Brüchert

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Short summary
The biogeochemistry of methane was studied in high-latitude fjord-type estuarine sediment in the Baltic Sea from April 2012 to April 2013. A large variability in methane-producing and methane-oxidizing processes was observed over the year. Oxygen was the most important regulator for the methane flux. In addition to eutrophication effects, free gas movement is suggested as a factor controlling methane concentrations.
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