Now showing items 1-6 of 6
Trophic Interrelationships Amongst Cichlid Fishes in a Tropical African Reservoir (Lake Chivero, Zimbabwe)
The diet of seven cichlid fish species of Lake Chivero was investigated from October 2004 to April 2005. Oreochromis niloticus and O. macrochir were microphages feeding on a wide range of algae of which Microcystis sp., ...
A Human Health Risk Assessment of Heavy Metal Bioaccumulation in Nile Tilapia Oreochromis niloticus from Lake Chivero, Zimbabwe
Lake Chivero’s catchment covers the urban areas of Harare and Chitungwiza, which contribute immensely to the pollution of the lake through urban runoff, sediments, sewage effluents, industrial effluents and leachate from ...
Nutrient Limitation of Phytoplankton in Five Impoundments on the Manyame River, Zimbabwe
Nutrient limitation was investigated in the Manyame lakes during 2004-05, namely, Harava Dam, Seke Dam, Lake Chivero, Lake Manyame and Bhiri Dam. Selenestrum capricornutum was used as the test organism in one group of ...
Using Modelling as a Management Tool for Water Resources: Identifying Problems and Causes and Providing Solutions to Current Eutrophication Problems in Lake Chivero.
The PAMOLARE model can be used as an effective tool for managing water resources. Projections show that in the next 25 years Lake Chivero’s water quality will further deteriorate if there are no measures taken immediately ...
Effects of nitrogen fertilization and precipitation decline on tree-grass interactions in Southern African Savannas
(University of Zimbabwe, 2018-10)
Savannas are heterogeneous ecosystems comprising of a co-dominance of herbaceous and woody species and these ecosystems support millions of people as well as diverse mammalia species. Recent research has established that ...
USING THE PLANNING AND MANAGEMENT MODEL OF LAKES AND RESERVOIRS
The future condition of a lake ecosystem can be predicted through the interpretation of past and present responses to change. The objective of this study was to predict the changes in the eutrophic status of Lake Chivero ...