Integrating Stressor and Response Monitoring into a Resource-Based Water-Quality Assessment Framework |
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Authors: | Dirk J. Roux Phillip L. Kempster Cornelius J. Kleynhans Henk R. Van Vliet Hein H. Du Preez |
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Affiliation: | (1) Division of Water, Environment and Forestry Technology PO Box 395 Pretoria, 0001, South Africa , ZA;(2) Institute for Water Quality Studies Private Bag X313 Pretoria, 0001, South Africa , ZA;(3) Department of Zoology, RAU PO Box 524 Johannesburg, 2006, South Africa , ZA |
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Abstract: | Following a global trend, the new policy goals emphasize the need to protect rather than to use the ability of ecosystems to recover from disturbances. This necessitates the adoption of response measurements to quantify ecological condition and monitor ecological change. Response monitoring focuses on properties that are essential to the sustainability of the ecosystem. These monitoring tools can be used to establish natural ranges of ecological change within ecosystems, as well as to quantify conceptually acceptable and unacceptable ranges of change. Through a framework of biological criteria and biological impairment standards, the results of response monitoring can become an integral part of future water resource management strategies in South Africa. |
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Keywords: | : Stressor monitoring Response monitoring Assimilative capacity Ecosystem stability Resilience Biocriteria |
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