Your search found 6 records
1 Mochebelele, R. T. 2000. Good governance and the avoidance of conflicts: The Lesotho Highlands Water Project experience. In Green Cross International, Water for peace in the Middle East and Southern Africa. Geneva, Switzerland: Green Cross. pp.107-111.
Water resources development ; Water rates ; Conflict ; International cooperation ; Standards ; Non-governmental organizations / Lesotho / South Africa / Senqu/Orange River / Vaal River
(Location: IWMI-HQ Call no: 333.91 G000 GRE Record No: H026894)
2 Basson, M. S.; Allen, R. B.; Pegram, G. G. S.; van Rooyen, J. A. 1994. Probabilistic management of water resource and hydropower systems. Highlands Ranch, CO, USA: Water Resources Publications. ix, 424p.
Water resource management ; Water resources development ; River basin development ; Hydrology ; Stream flow ; Rain ; Urbanization ; Irrigation ; Salinity ; Development plans ; Mathematical models ; Simulation models ; Computer models ; Optimization ; Reservoir operation ; Dams ; Water quality ; Risks ; Drought ; Water demand ; Hydroelectric schemes ; Stochastic process ; Economic analysis ; Case studies / South Africa / Vaal River
(Location: IWMI-HQ Call no: 333.91 G178 BAS Record No: H027208)
3 Ellington, R. G.; Usher, B. H.; van Tonder, G. J. 2004. Quantification of the impact of irrigation on the aquifer under the Vaalharts Irrigation Scheme. In Stephenson, D.; Shemang, E. M.; Chaoka, T. R. (Eds.), Water resources of arid areas: proceedings of the International Conference on Water Resources of Arid and Semi Arid Regions of Africa (WRASRA), Gaborone, Botswana, 3-6 August 2004. Leiden, Netherlands: A. A. Balkema. pp.47-55.
Irrigation programs ; Aquifers ; Salinity ; Groundwater ; Monitoring ; Models ; Drilling / South Africa / Vaal River / Vaalharts Irrigation Scheme
(Location: IWMI-HQ Call no: 333.91 G100 STE Record No: H035527)
4 Gichuki, Francis; McCornick, Peter G. 2008. International experiences of water transfers: relevance to India. In Amarasinghe, Upali A.; Sharma, Bharat R. (Eds.) Strategic Analyses of the National River Linking Project (NRLP) of India, Series 2. Proceedings of the Workshop on Analyses of Hydrological, Social and Ecological Issues of the NRLP, New Delhi, India, 9-10 October 2007. Colombo, Sri Lanka: International Water Management Institute (IWMI) pp.345-371.
River basins ; Water scarcity ; Water transfer ; Planning ; Case studies ; History ; Water allocation ; Environmental effects ; Food security ; Poverty / USA / Mexico / Central Asia / Spain / China / Lesotho / South Africa / Brazil / India / Colorado River / Aral Sea Basin / Lake Arnasia / Segura Basin / Tagus Basin / Ebro Basin / Three Gorges Project / Yangtze River / Orange River / Vaal River / Sao Francisco Transbasin Project
(Location: IWMI HQ Call no: IWMI 333.9162 G635 AMA Record No: H041812)
(92.34 KB)
5 du Plessis, A.; Harmse, T.; Ahmed, F. 2015. Predicting water quality associated with land cover change in the Grootdraai Dam catchment, South Africa. Water International, 40(4):647-663. (Special issue on 40th anniversary) [doi: https://doi.org/10.1080/02508060.2015.1067752]
Water quality ; Standards ; Guidelines ; Forecasting ; Models ; Dams ; Catchment areas ; Rivers ; Land cover change ; Urban areas ; Forestry ; Cultivation ; Mining ; Hydrological factors ; Economic aspects ; Environmental impact / South Africa / Grootdraai Dam Catchment / Vaal River
(Location: IWMI HQ Call no: e-copy only Record No: H047444)
(0.70 MB)
The Grootdraai Dam catchment forms part of the Vaal River system, which is deemed to be the ‘workhorse’ of South Africa as it is located within the economic heart of the country. The status of water quality within the catchment is an important characteristic that needs to be investigated extensively due to its importance to the country’s future economic growth. Intricate relationships between land cover and specific water quality parameters were quantified and unique model equations were formulated to predict water quality in the region. Urban and mining developments should be re-evaluated due to the accompanied significant hydrological consequences.
6 Saad, D.; Chauke, P.; Cukrowska, E.; Richards, H.; Nikiema, Josiane; Chimuka, L.; Tutu, H. 2022. First biomonitoring of microplastic pollution in the Vaal River using Carp fish (Cyprinus carpio) “as a bio-indicator”. Science of the Total Environment, 836:155623. [doi: https://doi.org/10.1016/j.scitotenv.2022.155623]
Microplastic pollution ; Biomonitoring ; Common carp ; Cyprinus carpio ; Bioindicators ; Aquatic organisms ; Freshwater ; Biota ; Polymers ; Chemicophysical properties ; Wastewater ; Rivers ; Health hazards / South Africa / Vaal River
(Location: IWMI HQ Call no: e-copy only Record No: H051095)
(1.92 MB)
Fish inhabiting freshwater environments are susceptible to the ingestion of microplastics (MPs). Knowledge regarding MPs in freshwater fish in South Africa is very limited. In this study, the uptake of MPs by common carp (Cyprinus carpio) in the Vaal River in South Africa was assessed. MPs were detected in all of the twenty-six fish examined, 682 particles of MPs were recovered from the gastrointestinal tracts of the fish with an average of 26.23 ± 12.57 particles/fish, and an average abundance of 41.18 ± 52.81 particles/kg. The examination of the physical properties of MPs revealed a predominance on fibers (69%), small-sized particles of less than 0.5 mm (48%), as well as prevelance of coloured MPs (94%), mostly green, blue, and black. Using Raman Spectroscopy, the following plastic polymers were identified: high density polyethylene (HDPE), low density polyethylene (LDPE), polypropylene (PP), polyethylene terephthalate (PET), and polytetrafluoroethylene (PTFE).
To the best of our knowledge, this study, is the first to report MPs uptake by freshwater biota in the Vaal River using common carp as a target organism. It provided evidence of MP contamination in the Vaal.
To the best of our knowledge, this study, is the first to report MPs uptake by freshwater biota in the Vaal River using common carp as a target organism. It provided evidence of MP contamination in the Vaal.
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