An investigation into the occurrence and concentration of Trihalomethanes and their precursors in South African drinking waters
Evaluation of the impact of the phosphate-P standard on the water quality and trophic state of Hartbeespoort Dam
The use of a red strain of the sharptooth catfish Clarias gariepinus (Burchell) in the evaluation of cannibalism amongst juveniles of this species
Short communication: Notes on a comparison of the catchability and growth of a red and normal variety of the sharptooth catfish Clarias gariepinus (Burchell) stocked together in fish production ponds