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Phytoplankton/protozoan dynamics in the Nyara Estuary, a small temporarily open system in the Eastern Cape (South Africa)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DR Walker R Perissinotto RPA BallyMost estuarine studies in South Africa have focused on larger estuaries, while numerous, smaller, temporarily open estuaries have received little research attention. This study examines the phytoplankton distribution in relation to physical and chemical variables through a quasi-seasonal cycle (from... -
The trophic position of planktonic ciliate populations in the food webs of some East African lakes
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: AndrewW Yasindi WilliamD TaylorThe trophic role of planktonic ciliates was investigated in the food webs of 17 East African lakes of different salinity and trophy. Experiments with 1μm latex beads showed that Cyclidium, Halteria, Dysteria, Aspidisca and Vorticella are bacterivores. Examination of food... -
The zooplankton community of Lake Abo Zaabal, a newly-formed mining lake in Cairo, Egypt
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RandaA El-Bassat WilliamD TaylorAbo Zaabal Lake, a new mining lake at the outskirts of Cairo, receives domestic sewage from a nearby village. We examined its chemical and biological properties in order to develop a plan to improve its ecosystem services. The pH ranged... -
Gastrointestinal protozoa and digestive tract parameters of wild South African warthogs (Phacochoerus aethiopicus)
Item type: Journal Article • Journal: African Zoology • Authors: D.G. Booyse --- Department of Anatomy and Physiology, B.A. Dehority --- Department of Animal Sciences,The warthog (Phacochoerus aethiopicus) is a grazer and hindgut fermenter with an apparent unique population of protozoa; however, only a limited number of specimens have been studied to date. In addition to having a very low number of protozoal species,... -
A brief history of freshwater fish parasitology in southern Africa
Item type: Journal Article • Journal: African Zoology • Authors: Jo G van As --- Department of Zoology and Entomology, University of the Free State, South AfricaThe paper presents an overview of the history of aquatic parasitology of freshwater fish in southern Africa. Aquatic parasitology has become a very popular field of specialisation in South Africa and is currently practised by a number of individual research... -
Endo-parasites of public-health importance recovered from rodents in the Durban metropolitan area, South Africa
Item type: Journal Article • Journal: Southern African Journal of Infectious Diseases • Authors: Colleen E Archer --- School of Life Sciences, College of Agriculture, Engineering & Science, South Africa Christopher C Appleton --- School of Life Sciences, College of Agriculture, Engineering & Science, South Africa Samson Mukaratirwa --- School of Life Sciences, College of Agriculture, Engineering & Science, South Africa Jennifer Lamb --- School of Life Sciences, College of Agriculture, Engineering & Science, South Africa M Corrie Schoeman --- School of Life Sciences, College of Agriculture, Engineering & Science, South AfricaBackground: Parasite infections of public health importance carried by Rattus spp. on the African continent (excluding toxoplasmosis) have not been adequately researched. The aim of this study was to investigate endoparasites of public health importance, particularly those associated with R... -
Assessment of potential sources of protozoan contamination between two avian feeding guilds in a conservation area
Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology • Authors: Adams A Chaskda --- AP Leventis Ornithological Research Institute, Department of Zoology, Nigeria Georgina S Mwansat --- Entomology and Parasitology Unit, Department of Zoology, Nigeria Danjuma Sani --- Entomology and Parasitology Unit, Department of Zoology, Nigeria Longtong Turshak --- Department of Science Laboratory Technology, NigeriaOccasional screening of food and water quality available to organisms in protected areas could be beneficial to their successful conservation. This is important for areas receiving regular human visitors and exhibiting activities that may be detrimental to ecosystem health. This... -
Influence of oats cover crop preceding dryland lucerne establishment on some aspects of soil microbial ecology
Item type: Journal Article • Journal: South African Journal of Plant and Soil • Authors: Anélia Marais --- Directorate Plant Sciences, Western Cape Department of Agriculture, South Africa Johan Labuschagne --- Directorate Plant Sciences, Western Cape Department of Agriculture, South Africa Mardé Booyse --- Agricultural Research Council – Biometry, South AfricaThe use of cover crops to enhance soil ecology is widely propagated. Soil samples were collected at five depths from plots in newly established (four months) dryland lucerne (Medicago sativa) pasture. Preceding this establishment, the plots were either under Saia...