The importance of water levels in the management of the Klein River Estuary, Hermanus
Master Thesis
1987
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University of Cape Town
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Abstract
The Klein River Estuary is situated at Hermanus in the Western Cape, South Africa. The estuary mouth is normally closed by a sand berm during the summer and open to the sea during the wetter winter months. The estuary forms a shallow lagoon which is becoming increasingly popular for recreational activities. Several management problems have arisen which are now becoming important with the increase in recreational pressure. The main problems are: uncertainty about appropriateness of water levels, marine sand influx and accumulation, flooding of low lying developments, flooding of agricultural lands, decrease in fish catches and indecision about the ideal position of the estuary mouth in the sand berm. This study concentrates mainly on the effects of different possible water levels. The conclusion is that the estuary water level should be permitted to rise at least as high as the highest level investigated. The estuary should be allowed to breach the sand berm. Developments on low lying land, prone to flooding, should be prohibited and only those structures which would not be damaged by flooding should be allowed in such areas.
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Bibliography: pages 85-89.
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Waldron, M. 1987. The importance of water levels in the management of the Klein River Estuary, Hermanus. University of Cape Town.