Show simple item record

dc.contributor.authorde Groot, Tim René
dc.contributor.authorMol, Anne Margriet
dc.contributor.authorMesdag, Katherine
dc.contributor.authorRamond, Pierre
dc.contributor.authorNdhlovu, Rachel
dc.contributor.authorEngelmann, Julia Catherine
dc.contributor.authorRöckmann, Thomas
dc.contributor.authorNiemann, Helge
dc.date.accessioned2023-11-13T08:23:53Z
dc.date.available2023-11-13T08:23:53Z
dc.date.issued2023-09-25
dc.description.abstractThe Wadden Sea is a coastal system along the fringe of the land–sea borders of Denmark, Germany and the Netherlands. The Wadden Sea is extremely productive and influenced by strong variations in physical and biological forcing factors that act on timescales of hours to seasons. Productive coastal seas are known to dominate the ocean's methane emission to the atmosphere, but knowledge of controls and temporal variations in methane dynamics in these vastly dynamic systems is scarce. Here we address this knowledge gap by measuring methane inventories and methanotrophic activity at a temporal resolution of 1 h over a period of 2 d, repeatedly during four successive seasons in the central Dutch Wadden Sea. We found that methane dynamics varied between colder and warmer seasons, with generally higher water column methane concentrations and methanotrophic activity in the warmer seasons. The efflux of methane to the atmosphere was, on the other hand, lower in the warmer seasons because of lower wind speeds. On a diel scale, tides controlled methanotrophic activity, which increased ∼40 % at low tide compared to high tide. We estimate that methane oxidizing bacteria reduce the methane budget of the Dutch Wadden Sea by only 2 %, while escapes to the atmosphere and are flushed out into the open North Sea at ebb tide. Our findings indicate that tides play a key role in controlling methane dynamics and methanotrophic activity and highlight the importance of high-resolution and repeated sampling strategies to resolve methane dynamics in fast-changing coastal systems.en_US
dc.identifier.citationde Groot, Mol, Mesdag, Ramond, Ndhlovu R, Engelmann, Röckmann T, Niemann H. Diel and seasonal methane dynamics in the shallow and turbulent Wadden Sea. Biogeosciences. 2023;20:3857-3872en_US
dc.identifier.cristinIDFRIDAID 2194861
dc.identifier.doi10.5194/bg-20-3857-2023
dc.identifier.issn1726-4170
dc.identifier.issn1726-4189
dc.identifier.urihttps://hdl.handle.net/10037/31722
dc.language.isoengen_US
dc.publisherCopernicus Publicationsen_US
dc.relation.journalBiogeosciences
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2023 The Author(s)en_US
dc.rights.urihttps://creativecommons.org/licenses/by/4.0en_US
dc.rightsAttribution 4.0 International (CC BY 4.0)en_US
dc.titleDiel and seasonal methane dynamics in the shallow and turbulent Wadden Seaen_US
dc.type.versionpublishedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


File(s) in this item

Thumbnail

This item appears in the following collection(s)

Show simple item record

Attribution 4.0 International (CC BY 4.0)
Except where otherwise noted, this item's license is described as Attribution 4.0 International (CC BY 4.0)