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• W2904102387 abstract "AEI Aquaculture Environment Interactions Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsTheme Sections AEI 11:19-30 (2019) - DOI: https://doi.org/10.3354/aei00296 FEATURE ARTICLE Diffusive methane emissions from temperate semi-intensive carp ponds Marcellin Rutegwa1,*, Radek Gebauer1, Lukáš Veselý1, Ján Regenda1, Otakar Strunecký1, Josef Hejzlar2,3, Bořek Drozd1 1Institute of Aquaculture and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses , Faculty of Fisheries and Protection of Waters, University of South Bohemia in České Budéjovice, 370 05 České Budéjovice, Czech Republic 2Institute of Hydrobiology, Biology Centre CAS, 370 05 České Budéjovice, Czech Republic 3 Department of Ecosystem Biology, Faculty of Science, University of South Bohemia in České Budéjovice, 370 05 České Budéjovice, Czech Republic *Corresponding author: mrutegwa@frov.jcu.cz ABSTRACT: Manuring and supplementary feeding are common practices used to sustain high fish production in temperate semi-intensive carp ponds. However, the low use efficiency of added nutrients and organic matter may cause carp ponds to be ‘hot spots’ of methane (CH4) production and emission. Surface CH4 concentrations were measured and diffusive CH4 flux was estimated using a wind-based transboundary layer model in 3 nursery and 3 main carp ponds with different feeding rates and organic loading during 1 growing season. Mean (±SD) concentrations of CH4 were 1.3 ± 0.9 µM and 0.8 ± 0.8 µM in nursery and main ponds, respectively. All ponds were sources of CH4, with diffusive CH4 fluxes of 9.1 ± 6.8 mg C m-2 d-1 in nursery ponds and 6.4 ± 6.9 mg C m-2 d-1 in main ponds. Lower CH4 concentration and diffusive flux in the main ponds were probably due to bioturbation caused by the larger carp and consequent oxidation of the sediment. Seasonal dynamics of CH4 were mainly related to temperature. Methane concentration and diffusive flux levels recorded in this study were within the range of those reported in natural water bodies worldwide. Our results provide information on the role of carp aquaculture in greenhouse gas emission in temearate regions. KEY WORDS: Methane · Greenhouse gas emission · Aquaculture pond · Freshwater · Seasonality · Temperature Full text in pdf format Information about this Feature Article PreviousNextCite this article as: Rutegwa M, Gebauer R, Veselý L, Regenda J, Strunecký O, Hejzlar J, Drozd B (2019) Diffusive methane emissions from temperate semi-intensive carp ponds. Aquacult Environ Interact 11:19-30. https://doi.org/10.3354/aei00296 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in AEI Vol. 11. Online publication date: January 24, 2019 Print ISSN: 1869-215X; Online ISSN: 1869-7534 Copyright © 2019 Inter-Research." @default.
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• W2904102387 date "2019-01-24" @default.
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• W2904102387 title "Diffusive methane emissions from temperate semi-intensive carp ponds" @default.
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• W2904102387 doi "https://doi.org/10.3354/aei00296" @default.
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