Articles | Volume 23, issue 5
https://doi.org/10.5194/bg-23-1931-2026
https://doi.org/10.5194/bg-23-1931-2026
Research article
 | 
12 Mar 2026
Research article |  | 12 Mar 2026

Spatial heterogeneity of GHG dynamics across an estuarine ecosystem

Nicolas-Xavier Geilfus, Bruno Delille, Anna Villnäs, and Alf Norkko

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Cited articles

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Abril, G., Libardoni, B. G., Brandini, N., Cotovicz, L. C., Medeiros, P. R. P., Cavalcante, G. H., and Knoppers, B. A.: Thermodynamic uptake of atmospheric CO2 in the oligotrophic and semiarid São Francisco estuary (NE Brazil), Mar. Chem., 233, 103983, https://doi.org/10.1016/j.marchem.2021.103983, 2021. 
Al-Haj, A. N. and Fulweiler, R. W.: A synthesis of methane emissions from shallow vegetated coastal ecosystems, Glob. Change Biol., 26, 2988–3005, https://doi.org/10.1111/gcb.15046, 2020. 
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Short summary
Coastal ecosystems strongly influence the global carbon cycle but remain poorly quantified. We measured surface pCO₂, CH₄, and N₂O concentrations in southwest Finland across an estuarine ecosystem. Greenhouse gases concentrations varied with salinity and habitat type. Riverine inputs and mixing with seawater, and primary production shaped greenhouse gases dynamics, emphasizing benthic control as a key yet uncertain driver of coastal carbon fluxes.
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