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Please use this identifier to cite or link to this item: http://hdl.handle.net/10204/2075

Title: Adaptive assessment and management of riverine ecosystems: the Crocodile/Elands River case study
Authors: Roux, DJ
Kleynhans, CJ
Thirion, C
Hill, L
Engelbrecht, JS
Deacon, AR
Kemper, NP
Keywords: Riverine ecosystems
River health programme
Water resource management
Aquatic ecosystems procedure
Ecosystem assessment
Managing ecosystem
Mpumalanga rivers
South Africa
Water resources
Issue Date: Oct-1999
Publisher: Water Research Commission
Citation: Roux, DJ, et al. 1999. Adaptive assessment and management of riverine ecosystems: the Crocodile/Elands River case study. Water SA, vol. 25(4), pp 501-511
Abstract: The River Health Programme (RHP) is being designed to generate information regarding the ecological state of riverine ecosystems in South Africa. An adaptive assessment and management procedure is suggested as a means of linking the monitoring outcomes of the RHP with water resource management decisions. The potential of such a procedure is demonstrated, using data that have been collected, through the pilot application of the RHP, on the Crocodile and Elands Rivers, Mpumalanga. In order to assess the collected data relative to a reference state, homogeneous river segments were identified. Each segment was classified in terms of its relative ecological integrity, based on three biological indicators (fish, benthic invertebrates, riparian vegetation). These assessments of current integrity were compared with management goals and quality objectives for the respective river segments. Finally, river segments were ranked in terms of priority for receiving management attention, and an example is given of formulating appropriate management actions for addressing a high priority need. The systematic following of the step-wise procedure would facilitate and formalise the linking of data collection and assessment, the setting of management goals and quantifiable objectives, the selection of management options, and the monitoring of responses to chosen management actions.
URI: http://hdl.handle.net/10204/2075
ISSN: 0378-4738
Appears in Collections:Environmental management
Water resources and human health
General science, engineering & technology

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