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Monitoring of physicochemical water quality in the Demer River to determine impact of restored meanders between 2021 and 2024 Citation Hons, M.; Maris, T.; Schoelynck, J.; Ecosphere Research Group, University of Antwerp: Belgium; (2025): Monitoring of physicochemical water quality in the Demer River to determine impact of restored meanders between 2021 and 2024. Marine Data Archive. https://marineinfo.org/doc/dataset/8768 Contact: Hons, Malaurie Availability:  This dataset is licensed under a Creative Commons Attribution 4.0 International License.Description This study examined the impact of meander reconnection and deflector placement on water quality. Scope Themes: Physical, Water composition Keywords: Deflector installation, Meander reconnection, Monitoring, Physicochemical water quality, River restoration, Belgium, Demer R. Geographical coverage Belgium, Demer R. [Marine Regions] Temporal coverage 30 June 2021 - 10 October 2023 Parameters Ammonium (NH4+) Methodology Biogenic silica Methodology Carbonaceous oxygen demand Methodology Chlorophyll a Methodology Conductivity Methodology Dissolved organic carbon (DOC) Methodology Dissolved oxygen (O2) Methodology Dissolved Silica Methodology Kjeldahl nitrogen Methodology Nitrate (NO3-) Methodology Nitrite (NO2-) Methodology Orthophosphate (o-PO43-) Methodology pH Methodology Phaeopigments Methodology Saturated oxygen Methodology Suspended particulate matter (SPM) Methodology Total organic carbon (TOC) Methodology Total phosphorus (P) Methodology Turbidity Methodology Water temperature Methodology Ammonium (NH4+): Segmented Flow Analyser (Skalar San) Ammonium (NH4+): Segmented Flow Analyser (Skalar San) Biogenic silica: Inductively Coupled Plasma Emission Spectrophotometer (ICP-OES) from Thermo Scientific iCAP 6300 DUO. Carbonaceous oxygen demand: Dilution with oxygen rich water, added an inhibitor (allylthioureum) to surpress nitrification. 5 days incubations. Measurement of oxygen before and after incubation. Chlorophyll a: Organic plant material is removed from the water by filtration over a glass fibre filter. Pigments are extracted from the algal cells with acetone 90% and then estimated spectrophotometrically at 750, 664/665, 645, 630 and 480 nm. Conductivity: in-field measurement with WTW multiparameter instrument Dissolved organic carbon (DOC): Colorimetric with Skalar San+ Dissolved oxygen (O2): in-field measurement with WTW multiparameter instrument Dissolved Silica: Inductively Coupled Plasma Emission Spectrophotometer (ICP-OES) from Thermo Scientific iCAP 6300 DUO. Kjeldahl nitrogen: Segmented Flow Analyser (Skalar San) Nitrate (NO3-): Segmented Flow Analyser (Skalar San) Nitrate (NO3-): Segmented Flow Analyser (Skalar San) Nitrite (NO2-): Segmented Flow Analyser (Skalar San) Nitrite (NO2-): Segmented Flow Analyser (Skalar San) Orthophosphate (o-PO43-): Segmented Flow Analyser (Skalar San) pH: in-field measurement with WTW multiparameter instrument Phaeopigments: Organic plant material is removed from the water by filtration over a glass fibre filter. Pigments are extracted from the algal cells with acetone 90% and then estimated spectrophotometrically at 750, 664/665, 645, 630 and 480 nm. Phaeopigments: Organic plant material is removed from the water by filtration over a glass fibre filter. Pigments are extracted from the algal cells with acetone 90% and then estimated spectrophotometrically at 750, 664/665, 645, 630 and 480 nm. Saturated oxygen: in-field measurement with WTW multiparameter instrument Suspended particulate matter (SPM): lab measurement by filtration of 3x50 ml on a Whatmann GF/F 0.7 µm filter Total organic carbon (TOC): Lab measurement by filtration of 3x50 ml on a Whatmann GF/F 0.7 µm filter. Incenaration of filter for 4h at 550°C (LOI). Total phosphorus (P): Segmented Flow Analyser (Skalar San) Turbidity: in-field measurement with nephelometer Water temperature: in-field measurement with WTW multiparameter instrument Contributors Universiteit Antwerpen; Faculteit Wetenschappen; Departement Biologie; ECOSPHERE, more, data creator Publication Based on this dataset Hons, M.; Maris, T.; Schoelynck, J. (2025). The effects of meander reconnection and deflector installation on the physicochemical water quality. River Res. Applic. 41(1): 56-67. https://dx.doi.org/10.1002/rra.4384, more Dataset status: Completed Data type: Data Data origin: Monitoring: field survey Metadatarecord created: 2025-03-07 Information last updated: 2025-03-07 | ||||
