Spatial and temporal variability of methane emissions and environmental conditions in a hyper-eutrophic fishpond

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Abstract 4) emissions are often based on point measurements using either flux chambers or a transfer coefficient method, which may lead to strong underestimation of the total CH4 fluxes. In order to demonstrate more precise measurements of the CH4 fluxes from an aquaculture pond, using a higher resolution sampling approach we examined the spatiotemporal variability of CH4 concentrations in the water, related fluxes (diffusive and ebullitive) and relevant environmental conditions (temperature, oxygen, chlorophyll a 4 fluxes (4.1 %–18.5 %). Linear mixed-effects models identified water depth as the only significant predictor of CH4 fluxes. Our findings necessitate complex sampling strategies involving temporal and spatial variability for reliable estimates of the role of fishponds in a global methane budget.

Location: Deutsche Nationalbibliothek Frankfurt am Main

Extent: Online-Ressource

Language: Englisch

Bibliographic citation: Spatial and temporal variability of methane emissions and environmental conditions in a hyper-eutrophic fishpond ; volume:20 ; number:20 ; year:2023 ; pages:4273-4288 ; extent:16
Biogeosciences ; 20, Heft 20 (2023), 4273-4288 (gesamt 16)

Creator: Znachor, Petr
Nedoma, Jiří
Kolar, Vojtech
Matoušů, Anna

DOI: 10.5194/bg-20-4273-2023

URN: urn:nbn:de:101:1-2023102604392898293766

Rights: Open Access; Der Zugriff auf das Objekt ist unbeschränkt möglich.

Last update: 14.08.2025, 10:47 AM CEST

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Znachor, Petr
Nedoma, Jiří
Kolar, Vojtech
Matoušů, Anna

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