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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/id/dataset/8768

Availability: Creative Commons License 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, moredata 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
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