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Kenn? N. de Kock, Corrie T. Wolmarans
Pág. 8 bladsye
Die verspreiding en habitat van Chambardia wahlbergi en C. petersi, soos weerspie?l deur data in die databasis van die Nasionale Varswaterslakversameling (NVWSV) word weergegee en bespreek. Alhoewel die verspreiding van hierdie twee spesies grootl...
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M. Kemp, Kenne N. de Kock, Corrie T. Wolmarans
Pág. 2 bladsye
Aquatic macro-invetrebrates and selected abiotic factors were used to evaluate the river health. Preliminary results indicate that the ecological categories of the study sites vary from natural to critically modified and that the Target Water Qual...
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Kenné de Kock, Corrie Wolmarans
Pág. 220 - 236
The presence of Ancylidae in South Africa was established as early as 1848 but the ?rst comprehensive study on this family was reported in 1923. This author came to the conclusion that extensive work still had to be done before it could be declare...
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Kenné de Kock, Corrie Wolmarans
Pág. 183 - 195
The genus Pisidium includes some of the smallest bivalves in the family Sphaeriidae. The distribution of this group is cosmopolitan and they can utilize virtually any freshwater habitat,including peat bogs. Without doubt their centre of evolution ...
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Corrie Wolmarans, Kenné de Kock
Pág. 88 - 101
During this study selected direct and indirect educational methods were evaluated as a means of decreasing the prevalence of schist some infections in school children living in a schistosomeendemic area. Two direct (puppet show and flip chart) and...
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