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FAECAL BACTERIAL CONTAMINATION OF TROUT HATCHERY WATER EFFLUENT
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: G.R. Batchelor --- Division of Nature Conservation, South AfricaThis study was undertaken to determine the occurrence of faecal bacteria in two trout hatcheries in the Transvaal Province, South Africa. The results indicate that variations in numbers of enteric bacteria are partly caused by man-made changes to the influent... -
FRESHWATER FISH CONSERVATION IN SOUTH AFRICA: A RISING TIDE
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: M. Coke --- Natal Parks Board, South AfricaAttitudes towards the conservation of South African indigenous freshwater fishes have changed radically. Initially alien sport angling species were the focus of fisheries interest and local fishes were considered worthless. Gradually, in response to the work of collectors, taxonomists and... -
THE EFFECTS OF TROUT-FARM EFFLUENTS ON BENTHIC INVERTEBRATE COMMUNITY STRUCTURE IN RIVERS IN THE SOUTH-WESTERN CAPE, SOUTH AFRICA
Item type: Journal Article • Journal: Southern African Journal of Aquatic Sciences • Authors: C.A. Brown --- Freshwater Research Unit, Zoology Department, J.M. King --- Freshwater Research Unit, Zoology Department,The south-western Cape is currently responsible for 45% of the total annual trout production in South Africa and further expansion of this industry in the region is likely. A preliminary survey of seven trout farms situated on the upper reaches... -
A comparison of several methods of assessing river condition using benthic macroinvertebrate assemblages
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: CA BrownThis paper attempts to address some of the problems that are faced in the endeavour to minimise the time and financial costs of environmental monitoring. At the same time, it aims to assess the usefulness to freshwater studies of some... -
The diet of spotted-necked otters foraging in trout-stocked waters in Mpumalanga, South Africa
Item type: Journal Article • Journal: African Zoology • Authors: Rowan K Jordaan --- , South Africa Michael J Somers --- , South Africa Grant Hall --- , South Africa Trevor McIntyre --- , South AfricaHuman-wildlife conflict is likely to increase as urbanisation increases. African clawless otters, Aonyx capensis, and spotted-necked otters, Hydrictis maculicollis, are illegally persecuted for their perceived role in reducing trout in artificially stocked habitats in South Africa. The diet of African... -
Potential for a commercial inland fishery or just another water storage facility at Spring Grove Dam, KwaZulu-Natal, South Africa?
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Matthew J Burnett --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South Africa Céline Hanzen --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South Africa Alex Whitehead --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South Africa Gordon C O’Brien --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South Africa Colleen T Downs --- Centre for Functional Biodiversity, School of Life Sciences, University of KwaZulu-Natal, South AfricaSouth Africa's inland fisheries are generally undervalued, though there is developing interest in the sector. Spring Grove Dam in the KwaZulu-Natal Midlands became operational as a water storage facility in 2013 to provide water to the growing urban population in...