The control of Simuliidae (Diptera, Nematocera) in South African rivers by modification of the water flow volume

The control of Simuliidae (Diptera, Nematocera) in South African rivers by modification of the water flow volume

Howell, C.J.; Begemann, G.J.; Muir, R.W.; Louw, P.; Steyn, P.J.J.; Bigalke, R.D.; Cameron, Colin McKenzie; Gilchrist, Frances M.C.; Morren, A.J.; Verster, Anna J.M.; Verwoerd, Daniel Wynand; Walker, Jane B.
URI: http://hdl.handle.net/2263/51843
Date: 1981

Abstract:

It was found that the build-up of simuliid numbers subsequent to the construction of dams in the Vaal and Orange Rivers could be successfully prevented by periodic, artificially controlled reductions in the water-levels in these rivers.

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The articles have been scanned in colour with a HP Scanjet 5590; 600dpi. Adobe Acrobat XI Pro was used to OCR the text and also for the merging and conversion to the final presentation PDF-format.

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