Water quality and faunal studies in the Umzimvubu catchment, Eastern Cape, with particular emphasis on species as indicators of environmental change
- Authors: Madikizela, B R , Dye, Arthur H , O'Keeffe, Jay H
- Date: 2001
- Subjects: To be catalogued
- Language: English
- Type: text , report
- Identifier: http://hdl.handle.net/10962/437730 , vital:73405 , ISBN 1 86845 705 2 , https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/716-1-01.pdf
- Description: The primary aim of the project was to establish a water quality database and an in-ventory of aquatic fauna for the Umzimvubu River and its four main tributaries. The identification of species that are sensitive to environmental threats and that might be used as future indicators of environmental change, was the secondary aim. The results are outlined in Chapters 2, 3 and 4, while Chapter 5 reflects on conclusions and recommendations for further research. Based on the water quality data in Chapter 2 and macro-invertebrate scores (SASS4 and ASPT) in Chapter 3, the quality of water is good, suggesting that the catchment is not significantly degraded, ex-cept threats by soil erosion (Fig.2.15) leading to very high TSS loads (see Appendices 1- 3).
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- Date Issued: 2001
The development of a geomorphological classification system for the longitudinal zonation of South African rivers
- Authors: Rowntree, Kate M , Wadeson, Roy A , O'Keeffe, Jay H
- Date: 2000
- Language: English
- Type: Article
- Identifier: vital:6722 , http://hdl.handle.net/10962/d1006799
- Description: The recognition of the Reserve by the new South African Water Law poses new challenges for river scientists. The ecological water requirement or environmental flow is recognised by that part of the Reserve known as the ecological Reserve. If the ecological Reserve is to be implemented, it must first be defined and quantified for all river systems subject to water related developments. Standard procedures are being developed through the Resource Directed Measures (RDM) of the Department of Water Affairs and Forestry while monitoring the health of South Africa's rivers is taking place through the National River Health Programme (NRHP). Cost effective methods of developing spatial frameworks for both the RDM and NRHP are required. Concepts of longitudinal river zonation were developed by river ecologists in the 1960s and 1970s to assist in the classification of ecologically uniform stretches of rivers. This paper reviews the different zonation concepts and presents a geomorphological classification of South African river zones that is being applied to the RDM and NRHP. The classification is tested on three rivers, the Sabie, Buffalo and Olifants.
- Full Text: false
- Date Issued: 2000
Status report on the Kruger National Park Rivers Research Programme: A synthesis of results and assessment of progress to January 1996
- Authors: O'Keeffe, Jay H , Coetzee, Yvette
- Date: 1996
- Subjects: To be catalogued
- Language: English
- Type: text , report
- Identifier: http://hdl.handle.net/10962/437715 , vital:73404 , ISBN 1 86845 242 5 , https://wrcwebsite.azurewebsites.net/wp-content/uploads/mdocs/711-1-96.pdf
- Description: In August 1995, the Programme Development and Management Committee of the Kruger National Park Rivers Research Programme (KNPRRP) recommended to the Water Research Commission (WRC) that an information synthesis and status report of the Programme be undertaken. The main purpose of the report is to inform all the interested parties (including researchers, managers, and funding agencies) of the achievements and capabilities of the Programme; to assess these in relation to the stated goals and tasks of the "Second Phase: Programme description"; and to identify gaps and priorities for further work.
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- Date Issued: 1996