Zimbabwe
http://hdl.handle.net/1834/17386
2024-03-28T16:09:35ZAspects of the biology and population dynamics of freshwater mussels in Lake Kariba and Lake McIlwaine
http://hdl.handle.net/1834/25210
Aspects of the biology and population dynamics of freshwater mussels in Lake Kariba and Lake McIlwaine
Stafford Kenmuir, D.H.
The essential aim of this study was to provide a broad foundation of biological knowledge upon which a programme of mussel utilization and management could be built. Results of the study are presented in three main sections. Part 1 describes the stock of Lake Kariba and Lake McIlwaine; part 2 describes various aspects of the breeding biology of the three species; and part 3 presents the results of morphological, biochemical and age analyses - aspects which are used for initial standing crop and production calculations. The final discussion concludes the thesis with a general examination in ecological terms of the factors which have influenced the development and nature of the mussel faunas of the two lakes under consideration.
1980-07-01T00:00:00ZPreliminary phytoplankton counts in the Sanyati Basin, Lake Kariba
http://hdl.handle.net/1834/25201
Preliminary phytoplankton counts in the Sanyati Basin, Lake Kariba
Beattie, I.H.
Phytoplankton counts were made on a monthly basis on water samples, taken from one station in the Sanyati Basin. The results show seasonal fluctuations which are probably nutrient dependant. High phytoplankton numbers occur at times of high nutrient levels as was found with the crustacean zooplankton populations (Marshall 1980). Numbers also decreased with depth down to the thermocline. Below the thermocline there was little or no change in numbers.
1981-06-01T00:00:00ZA survey of the artisanal fishery on the Zimbabwean side of Lake Kariba
http://hdl.handle.net/1834/25075
A survey of the artisanal fishery on the Zimbabwean side of Lake Kariba
Machena, C.
Two types of fishermen have been identified along the lake shore: contract fishermen and independent fishermen. Independent fishermen move from their fishing grounds to other grounds in search for more fish and also to communal lands for farming during the rains. The fish from Kariba are marketed to a large part of the country creating a very large market potential. Profits accruing to the fishermen are not very attractive and could be the reason for the migratory behaviour of the fishermen. The fishermen population is rural with a characteristic expansive pyramid.
1983-02-01T00:00:00Z1998 fisheries statistics, Lake Kariba - Zimbabwe shore
http://hdl.handle.net/1834/25074
1998 fisheries statistics, Lake Kariba - Zimbabwe shore
Songore, N.; Moyo, A.; Mugwagwa, M.
The report contains data, statistics and information for both the pelagic and inshore fisheries of Lake Kariba for the year 1998. Time series data and notes for the 2 fisheries are included. The pelagic fishery exploits kapenta, the freshwater sardine Limnothrissa miodon, and is carried out all year round using light for attracting the fish. Two types of fishing vessel designs are in use (the pontoon-catamarans and the displacement monohulls) and the type of gear used is the lift net. The inshore fishery distinguishes the fishery that uses gillnets and exploits the indigenous Zambezi River fish species. This fishery is restricted to the lakeshore and uses 3 types of boats - the dugout canoe, fibreglass and metal boats.
1999-06-01T00:00:00Z