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DIGESTION OF MICROCYSTIS AERUGINOSA BY OREOCHROMIS MOSSAMBICUS
Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa • Authors: F.C. de Moor --- , South Africa W.E. Scott --- , South AfricaThe mean assimilation efficiency of aquarium acclimatized Oreochromis mossambiaue fed on a diet of Microcystis aeruginosa collected from Hartbeespoort Dam was determined as 50,8% for total organic matter, 63,7% for protein and 75,5% for phosphorus. Transmission electron microscopic examination of... -
Prosobranch mollusc species- and size-preferences of Sargochromis codringtonii (Cichlidae) in Lake Kariba, Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: J Brodersen MJ Chimbari H MadsenFrom the stomach contents of 28 wild-caught Sargochromis codringtonii from Lake Kariba the size and species of snails consumed were estimated from opercula found. An energetic cost/benefit ratio of the various sizes of the most frequent prey, Bellamya capillata, was... -
Hybridisation between native Oreochromis species and introduced Nile tilapia O. niloticus in the Kafue River, Zambia
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AM Deines --- Notre Dame Environmental Change Initiative, and Department of Biological Sciences, USA I Bbole --- The Copperbelt University, Zambia C Katongo --- The Copperbelt University, Zambia JL Feder --- Notre Dame Environmental Change Initiative, and Department of Biological Sciences, USA DM Lodge --- Notre Dame Environmental Change Initiative, and Department of Biological Sciences, USAThe Nile tilapia Oreochromis niloticus has been introduced throughout Africa outside its native range for aquaculture purposes. Hybridisation between escaped O. niloticus and native Oreochromis species is of concern due to potential negative effects on wild genetic resources for conservation,... -
Amplified Fragment Length Polymorphism markers reveal population structuring in Dimidiochromis kiwinge (Teleostei: Cichlidae), a commercially-exploited species from Lake Malawi
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Daud Kassam Shingo Seki Kosaku YamaokaThe understanding of between- and within-population genetic variation and its partitioning on the basis of geographic origin is crucial in designing efficient fishing and conservation strategies of populations and/or species. However, for Lake Malawi's cichlid species, such population genetic studies... -
Population parameters and exploitation rate of Sarotherodon galilaeus galilaeus (Cichlidae) in Lakes Doukon and Togbadji, Benin
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: D Lederoun --- Laboratory of Functional and Evolutionary Morphology, Belgium P Vandewalle --- Laboratory of Functional and Evolutionary Morphology, Belgium AA Brahim --- Laboratory of Hydrobiology and Aquaculture, Faculty of Agricultural Sciences, Benin J Moreau --- Department of Aquatic Environment, France PA Lalèyè --- Laboratory of Hydrobiology and Aquaculture, Faculty of Agricultural Sciences, BeninGrowth, mortality, recruitment and relative yield per recruit of Sarotherodon galilaeus galilaeus from Lakes Doukon and Togbadji were studied. Data on total length, total weight and sex were recorded on a monthly basis between January and December 2013 for S... -
A DNA barcoding study of seven cichlid species from southern Africa reveals their phylogenetic relationships
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: FH van der Bank --- African Centre for DNA Barcoding, South AfricaThis study of three Namibian fish species (two endemic Thoracochromis and Tilapia guinasana) and Pseudocrenilabrus philander reveals their monophyly. These species (and Sandelia capensis) have never been DNA barcoded and their phylogenetic relationships with two Tilapia species is shown. Average... -
Population parameters, exploitation rate and diet of black-chinned Tilapia, Sarotherodon melanotheron Rüppell, 1852 (Pisces: Cichlidae), from Badagry Creek, Lagos, Nigeria
Item type: Journal Article • Journal: African Zoology • Authors: Prince Emeka Ndimele --- , Nigeria Fatai Gbolahan Owodeinde --- , Nigeria Edwin Oritseweyinmi Clarke --- , Nigeria Olufemi Olusegun Whenu --- , Nigeria Olufemi Olabode Joseph --- , NigeriaThe black-chinned tilapia (Sarotherodon melanotheron) is a member of the cichlid family, which can be cultured to complement the output from a predominantly catfish aquaculture industry in Nigeria. In order to achieve this objective, it is important to study the... -
Littoral substrates and nest properties of Coptodon rendalli vary with distance from the shoreline in a tropical impoundment, southeast Zimbabwe
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RJ Chateya --- National University of Science and Technology, Zimbabwe HGT Ndagurwa --- National University of Science and Technology, ZimbabweThe change in littoral substrates and Coptodon rendalli nest properties along the inshore–offshore gradient of Mushandike Dam in southeast Zimbabwe, impacted by long-term water-level fluctuations, were studied in March 2016. Substrate and nest properties were measured in four contiguous 25...