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Investigating the applicability of ecological informatics modelling techniques for predicting harmful algal blooms in hypertrophic reservoirs of South Africa
Expanded Title:The study showed that eutrophication and the associated problems is a real threat to South African fresh water resources but that modelling methods can assist in managing the problem. The list of recommendations needs to be taken further by a number of stakeholders, e.g. the Department of Water Affairs, future CMA’s, Universities and other researchers in order to: a) Determine the necessary variables and monitor these for future modelling exercises. b) Include total microcystin monitoring in impacted fresh water resources at least during the summer periods to enable resource managers to issue warnings to all potential impacted state holders. c) Initiate and test available management options to minimise serious eutrophication levels in South Africa. d) Manage the risk imposed by the cyanobacterial blooms and the associated toxins produced in the water resources, on drinking water facilities and the health of recreational users. e) Develop short-term forecasting tools, for the algal blooms of Microcystis and Ceratium, with on-line water quality monitoring for early-warning and real-time forecasting for reservoir managers. f) Investigated the cause and effects for changing composition of the phytoplankton of these five reservoirs. g) Monitor at different depths to determine the best depth for abstraction for treatment purposes. The successful use of the hybrid Evolutionary Algorithm Method to develop predictive tools for algal blooms indicated the necessity to develop capacity (both human and equipment) in South Africa to use the Hypbrid Evolutionary Algorithm (HEA) RULE set development in all research spheres, as the method is applicable to any type of numerical data and can be applied to any research field.
Date Published:01/04/2010
Document Type:Research Report
Document Subjects:Water Resource Management/IWRM - Planning and development, Water Resource Management/IWRM - Dams (Impoundment), Agricultural Water - Aquaculture, Ecosystem - Biomonitoring, Drinking water - Water treatment, Drinking water - Water supply, R & D - Information technology
Document Keywords:Guidelines, Environment, Technology, Water Quality
Document Format:Report
Document File Type:pdf
Research Report Type:Technical
WRC Report No:TT 451-09
ISBN No:978-1-77005-953-5
Authors:Van Ginkel CE; Du Plessis S; Bezuidenhout JJ
Project Leader:van Ginkel CE
Project No:K5/1675
Originator:WRC
Organizations:Crypsis Environmental Consulting; North West University
Document Size:3 056 KB
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