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Impact of abattoir waste on Woji Creek, Port Harcourt, Nigeria, using physicochemistry and macrozoobenthic diversity indices
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: N Zabbey --- Department of Animal Science and Fisheries, Nigeria I Etela --- Department of Animal Science and Fisheries, NigeriaThe impact of waste discharge from Zoo abattoir, Port Harcourt, on the environmental quality of Woji Creek was studied from April 2001 to March 2002 using physicochemistry and diversity of benthic animals as indicators. Priority physicochemical parameters (total suspended solid,... -
Mouthpart deformities in Chironomidae (Diptera) as indicators of heavy metal pollution in northern Lake Victoria, Uganda
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: H Ochieng ED de Ruyter van Steveninck FM WandaDue to the absence of appropriate and sensitive tools for monitoring heavy metal pollution in northern Lake Victoria (Uganda), this study investigated mouthpart deformities in chironomid larvae (Diptera) in relation to concentrations of lead, copper, cadmium and zinc in lake... -
Inventory of kiln stacks emissions and health risk assessment: Case of a cement industry in Southwest Nigeria
Item type: Journal Article • Journal: African Journal of Science, Technology, Innovation and Development • Authors: Solomon O. Giwa --- Department of Mechanical Engineering, Nigeria Collins N. Nwaokocha --- Department of Mechanical Engineering, Nigeria Abayomi T. Layeni --- Department of Mechanical Engineering, NigeriaCement production is a significant source of air pollution as both gaseous and particulate materials released are detrimental to the ecosystem. This work was carried out in a cement industry located in Southwest Nigeria. The emission rates of carbon monoxide... -
Assessment of persistent organochlorine compounds contamination on the Lake Victoria water and sediments: a case study in Tanzania
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: A Wenaty --- Department of Food Technology, Nutrition and Consumer Sciences, Tanzania F Mabiki --- Department of Chemistry and Physics, Tanzania B Chove --- Department of Food Technology, Nutrition and Consumer Sciences, Tanzania R Mdegela --- Department of Veterinary Medicine and Public Health, TanzaniaThe current study was conducted to establish the levels of organochlorine pesticides (OCPs), its degradation products, and indicatory polychlorinated biphenyls (PCBs) in water and sediments from Lake Victoria in Tanzania. Seven indicator PCBs were identified in sediments, and five were... -
Nutrient fluxes from sediments pose management challenges for the Knysna Estuary, South Africa
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: LRD Human --- South African Environmental Observation Network, Elwandle Coastal Node, South Africa R Weitz --- Department of Botany, Institute for Coastal and Marine Research, South Africa BR Allanson --- Knysna Basin Project, Department of Zoology and Entomology, South Africa JB Adams --- Department of Botany, Institute for Coastal and Marine Research, South AfricaThis study investigated seasonal dynamics of benthic nutrient fluxes using in situ benthic chambers deployed over a 24–hour period at the sediment water interface for four distinct regions of the Knysna Estuary. The sediment in the Upper Estuary, Lagoon and... -
Behavioural response as a reliable measure of acute nanomaterial toxicity in zebrafish larvae exposed to a carbon-based versus a metal-based nanomaterial
Item type: Journal Article • Journal: African Zoology • Authors: Sarel J Brand --- Unit for Environmental Sciences and Management, South Africa Tarryn L Botha --- Unit for Environmental Sciences and Management, South Africa Victor Wepener --- Unit for Environmental Sciences and Management, South AfricaProduction, use and disposal of products containing nanomaterials can lead to an increased presence of these particles in the environment and exposure to the organisms found there. It is therefore becoming increasingly necessary to develop methods for screening these materials... -
Diversity of benthic macroinvertebrates in anthropogenically disturbed Aturukuku River, Eastern Uganda
Item type: Journal Article • Journal: African Zoology • Authors: Hannington Ochieng --- , Uganda Willy P Gandhi --- , Uganda Godfrey Magezi --- , Uganda James Okot-Okumu --- , Uganda Robinson Odong --- , UgandaBiodiversity conservation has focused on large vertebrates and plants with pronounced economic value, compared with smaller organisms such as benthic macroinvertebrates that play a particular role in freshwater ecosystems. The increasing loss and degradation of freshwater habitats, coupled with low... -
Aluminium and manganese leaching and retention in two contrasting soils treated with aluminium-based sludge water in a column experiment
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: S Dube --- , South Africa P Muchaonyerwa --- , South Africa F Mapanda --- , Zimbabwe JC Hughes --- , South AfricaLiquid waste (sludge water (SW)) from treatment of drinking water contains impurities which pose disposal challenges. Irrigation with SW could be a solution for the Morton Jaffray Water Works. This study was conducted to determine the effects of SW dilution...