Significance of bacteria associated with invertebrates in drinking water distribution networks von WOLMARANS, E, DU PREEZ, H. H, DE WET, C. M. E, VENTER, S. N

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The occurrence and removal of algae (including cyanobacteria) and their related organic compounds from source water in Vaalkop Dam with conventional and advanced drinking water tre... von Du Preez, H.H., Swanepoel, A., Cloete, N.

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Efficacy of conventional drinking water treatment processes in removing problem-causing phytoplankton and associated organic compounds von EWERTS, H, SWANEPOEL, A, DU PREEZ, H. H

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Application of a basic monitoring strategy for Cryptosporidium and Giardia in drinking water von Sigudu, M.V, Retief, F, Du Preez, H.H, Du Preez, H.H

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Monitoring of water transfer from Katse Dam into the Upper Vaal river system: water utility's perspective von Lepono, T, Du Preez, H H, Thokoa, M

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Seasonal study on Bothriocephalus as indicator of metal pollution in yellowfish, South Africa von Avenant-Oldewage, A., Retief, N-R., Du Preez, H.H.

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Ecological aspects of the occurrence of asian tapeworm, Bothriocephalus acheilognathi Yamaguti, 1934 infection in the largemouth yellowfish, Labeobarbus kimberleyensis ( Gilchrist... von Retief, N-R, Avenant-Oldewage, A., du Preez, H.H.

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Uptake and distribution of a copper, iron and zinc mixture in gill, liver and plasma of a freshwater teleost, Tilapia sparrmanii von Wepener, V., Van Vuren, J.H.J., Du Preez, H.H.

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Bioaccumulation of copper and zinc in Oreochromis mossambicus and Clarias gariepinus, from the Olifants River, Mpumalanga, South Africa von KOTZE, P, PREEZ, H. H. D, VAN VUREN, J. H. J

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Monitoring of water transfer from Katse Dam into the Upper Vaal river system: water utility's perspective von Lepono, T, Du Preez, HH, Thokoa, M

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The Freshwater River Crab,Potamonautes warreni, as a Bioaccumulative Indicator of Iron and Manganese Pollution in Two Aquatic Systems von Sanders, Michele J., Du Preez, Hein H., Van Vuren, Johan H.J.

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The effect of copper on the blood chemistry of Clarias gariepinus (clariidae) von Van Vuren, J.H.J., Van der Merwe, Marinda, Du Preez, H.H.

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Effect of manganese and iron at a neutral and acidic pH on the hematology of the banded tilapia (Tilapia sparrmanii) von WEPENER, V, VAN VUREN, J. H. J, DU PREEZ, H. H

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Bioaccumulation of chromium, manganese, nickel and lead in the tissues of the moggel, Labeo umbratus (Cyprinidae), from Witbank Dam, Mpumalanga von Nussey, G., van Vuren, J.H.J. & du Preez, H.H.

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Seasonal study on Bothriocephalus as indicator of metal pollution in yellowfish, South Africa von Retief, N-R, Avenant-Oldewage, A, Du Preez, HH

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Integrating stressor and response monitoring into a resource-based water-quality assessment framework von Roux, D.J, Kempster, P.L, Kleynhans, C.J, Van Vliet, H.R, Du Preez, H.H

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Tolerance levels of redbreast tilapia, Tilapia rendalli (Boulenger, 1896) to natural suspended silt von Buermann, Y. (Rand Afrikaans Univ., Johannesburg (South Africa). Dept. of Zoology), Preez, H.H. du, Steyn, G.J, Smit, L

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Concentrations of zinc in Barbus marequensis from the lower Olifants River, Mpumalanga, South Africa von SEYMORE, T, DU PREEZ, H. H, VAN VUREN, J. H. J

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The implementation of an aquatic toxicity index as a water quality monitoring tool in the Olifants River (Kruger National Park) von Wepener, V., Van Vuren, J.H.J., Du Preez, H.H.

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Manganese, lead and strontium bioaccumulation in the tissues of the yellowfish, Barbus marequensis from the lower Olifants River, Eastern Transvaal [South Africa] von Seymore, T, Du Preez, H.H, Van Vuren, J.H.J. (Rand Afrikaans Univ., Auckland Park (South Africa). Dept of Zoology and RATE)

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