du Preez, H.H., Rand Afrikaans University, South Africa

• Vol 42, No 1 (1999) - Original Research
  The implementation of an aquatic toxicity index as a water quality monitoring tool in the Olifants River (Kruger National Park)
  Abstract  PDF
• Vol 41, No 1 (1998) - Original Research
  Influence of natural silt on the survival of Oreochromis mossambicus yolk sac larvae
  Abstract  PDF
• Vol 40, No 1 (1997) - Original Research
  Bio-accumulation of selected metals in African sharptooth catfish Clarias gariepinus from the lower Olifants River, Mpumalanga, South Africa
  Abstract  PDF
• Vol 39, No 1 (1996) - Short Communication
  Tooth replacement of tigerfish Hydrocynus vittatus from the Kruger National Park
  Abstract  PDF
• Vol 38, No 2 (1995) - Original Research
  Suspended silt concentrations in the lower Olifants River (Mpumalanga) and the impact of silt releases from the Phalaborwa Barrage on water quality and fish survival
  Abstract  PDF
• Vol 37, No 2 (1994) - Original Research
  Variations in selected water quality variables and metal concentrations in the sediment of the lower Olifants and Selati rivers, South Africa
  Abstract  PDF
• Vol 36, No 2 (1993) - Original Research
  Lethal copper concentration levels for Clarias gariepinus (Burchell, 1822) @ a preliminary study
  Abstract  PDF
• Vol 35, No 2 (1992) - Original Research
  The development of an aquatic toxicity index as a tool in the operational management of water quality in the Olifants River (Knsger National Park)
  Abstract  PDF