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Metal contamination of sediments and fish from the Vaal River, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: W Pheiffer --- Unit for Environmental Sciences and Management, R Pieters --- Unit for Environmental Sciences and Management, JC van Dyk --- Department of Zoology, NJ Smit --- Unit for Environmental Sciences and Management,Mining and other economic activities have led to the pollution of the Vaal River with metals of mainly industrial origin, but the consequences of this for animal and human health are unknown. Based on chemical analysis and histological examination, we... -
Bioaccumulation of metals in Tilapia zillii from Badeni Dam, Côte d'Ivoire
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RB Tate --- Digby Wells Environmental, South Africa A Husted --- Digby Wells Environmental, South AfricaGiven the importance of fish as a source of protein and the potential for exposure of humans to metal elements, metal bioaccumulation concentrations in Tilapia zillii from four sites in the Badeni Dam on the Badeni River, Côte d'Ivoire, were... -
Lead accumulation in and its haematological effects on African catfish Clarias gariepinus
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DH Ogbuagu --- Department of Environmental Technology, Nigeria ET Adebayo --- Department of Fisheries and Aquaculture Technology, Nigeria AA Ayoade --- Hydrobiology and Fisheries Unit, Department of Zoology, Nigeria OB Ugwu --- Department of Fisheries and Aquaculture Technology, Nigeria DO Mba --- Department of Fisheries and Aquaculture Technology, NigeriaYoung adult Clarias gariepinus exposed to 0.0015–0.1500 µg l−1 concentrations of lead (Pb2+) ions for 30 days were investigated for accumulations in muscle, gill, liver and heart tissues, as well as for the metal's effects on haemoglobin concentrations, erythrocytes sedimentation... -
An assessment of heavy metal accumulation in the Vaal River system, South Africa, using artificial mussels
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JA Calaca --- University of the Witwatersrand, South Africa S Dahms-Verster --- University of the Witwatersrand, South AfricaThis study aims to identify metal concentrations around the Vaal River system by means of spot water sampling and the use of artificial mussels (AMs). Levels of Al, Cd, Co, Cr, Cu, Fe, Mn, Pb and Zn were determined at...