A study was made of health aspects when utilising treated sewage effluent for fish production and this was compared to fish production in natural dam water.
The presence of occasional pathogenic micro-organisms in the fillets of the catfish, Clarias gariepinus, was investigated.
Fish were kept in cages in the first maturation pond of the Bloemspruit Sewage Works, and in the Krugersdrift Dam.
Analyses of water and fish included total and faecal coliforms, species of the genus Salmonella and coliphages.
Relatively high counts of faecal coliforms (6.3 x 103/100 ml) and coliphages (7.2 x 103/100 ml) were found in the maturation pond water.
The corresponding counts for the natural dam water were 1.3 x 102/100 ml and 2.6 x 103/100 ml respectively.
Mots-clés Pascal : Exploration bactériologique, Pathogène, Poisson comestible, Filet poisson, Pisciculture, Qualité production, Eau usée domestique, Réutilisation, République Sud Africaine, Afrique, Milieu dulçaquicole, Clarias gariepinus, Pisces, Vertebrata
Mots-clés Pascal anglais : Bacteriological investigation, Pathogenic, Edible fish, Fish fillet, Pisciculture, Production quality, Domestic waste water, Reuse, South Africa, Africa, Freshwater environment, Clarias gariepinus, Pisces, Vertebrata
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 94-0537319
Code Inist : 002A36B03. Création : 199501.