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The distribution and feeding ecology of the characid Brycinus sadleri in Lake Nabugabo, Uganda: implications for persistence with Nile perch (Lates niloticus)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JohnP Olowo LaurenJ Chapman ColinA Chapman Richard Ogutu-OhwayoCoincident with a rapid increase in numbers of introduced predatory Nile perch (Lates niloticus) in lakes Victoria, Kyoga, and Nabugabo of East Africa was a dramatic decline in populations of many native fishes. However, a few species, including the characid... -
A histological description of ovarian recrudescence in two Labeo victorianus populations
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: Justus Rutaisire AnthonyJ BoothThe ovaries of Labeo victorianus are paired organs situated in the peritoneal cavity and suspended on either side of the midline by a mesovarium. A capsule, composed of dense, regularly-arranged collagen and elastic fibres mixed with a few smooth muscle... -
Low genetic differentiation among morphologically distinct Labeobarbus species (Teleostei: Cyprinidae) in the Lake Victoria and Albertine basins, Uganda: insights from mitochondrial DNA
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: VB Muwanika --- Molecular Biology Laboratory, Institute of Environment and Natural Resources, Uganda MF Nakamya --- Department of Anatomy, Faculty of Veterinary Medicine, Uganda J Rutaisire --- , Uganda B Sivan --- Department of Animal Sciences, Israel C Masembe --- Molecular Biology Laboratory, Institute of Environment and Natural Resources, UgandaLabeobarbus altianalis and L. bynni bynni are hexaploid cyprinid fishes in the genus Labeobarbus. In the Great Lakes region of Africa, these two large-bodied barbs exhibit considerable morphological variations. Their intraspecific classification, currently based on geographical distribution and morphological variation,... -
An interdisciplinary method to harmonise ecology, economy and co-management: fisheries exploitation in Lake Nabugabo, Uganda
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Vaccaro --- Department of Anthropology and McGill School of Environment, Canada CA Chapman --- Department of Anthropology and McGill School of Environment, Canada EA Nyboer --- Department of Biology, Canada M Luke --- McGill School of Environment, Canada A Byekwaso --- National Fisheries Resources Research Institute, Uganda C Morgan --- McGill School of Environment, Canada D Mbabazi --- National Fisheries Resources Research Institute, Uganda D Twinomugisha --- Makerere University Biological Field Station, Uganda LJ Chapman --- Department of Biology, CanadaCollective action theory predicts that natural resource management at a local level has a higher probability of success if territoriality and jurisdiction of the managerial institution are in synchrony with mobility and territoriality of the resource and exploitation patterns of... -
The breeding period of the ocellated spiny eel Mastacembelus vanderwaali (Teleostei: Mastacembelidae) in the Batoka Gorge, Zambezi River
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JL MinshullIn late October 1990, Mastacembelus vanderwaali was found to be breeding in the Zambezi River in the Batoka Gorge in protected areas along a rocky shoreline during the low water period prior to the start of the November rains. Two... -
Microsatellite DNA analyses reveal population subdivisions among the recently introduced Nile perch (Lates spp.) in Lake Victoria
Item type: Journal Article • Journal: African Zoology • Authors: Matthew T. Mwanja --- ARDC–Kajjansi, Uganda Vincent B. Muwanika --- Department of Environmental Management, South Africa Charles Masembe --- Biology Department, Uganda Wilson W. Mwanja --- Department of Fisheries Resources, Uganda Silvester Nyakaana --- Biology Department, UgandaNile perch (Lates spp.) was introduced into Lake Victoria only five decades ago but is now well established and distributed throughout the lake. Given the extensive size of the lake, there is a possibility of isolation by distance that can... -
Occurrence, abundance and distribution of benthic macroinvertebrates in the Nyando River catchment, Kenya
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: DA Abong'o --- Department of Chemistry, School of Physical Sciences, Kenya SO Wandiga --- Department of Chemistry, School of Physical Sciences, Kenya IO Jumba --- Department of Chemistry, School of Physical Sciences, Kenya PJ Van den Brink --- Aquatic Ecology and Water Quality Management Group, The Netherlands BB Naziriwo --- Department of Chemistry, Uganda VO Madadi --- Department of Chemistry, School of Physical Sciences, Kenya GA Wafula --- Department of Chemistry, School of Physical Sciences, Kenya P Nkedi-Kizza --- Soil and Water Science Department, USA H Kylin --- Department of Water and Environmental Studies, SwedenA baseline study was conducted of the occurrence of macroinvertebrates at 26 sites in the Nyando River catchment in 2005–2006. A total of 13 orders and 16 families of Arthropoda, Mollusca, Platyhelminthes and Annelida were collected, with the order Ephemeroptera... -
Estimation of stability-related soil properties using mid-infrared spectroscopy for non-agricultural land use in Lake Victoria basin, Kenya
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: B. K. Waruru --- Kenya Agricultural and Livestock Research Organization (KALRO), Kenya K. D. Shepherd --- World Agroforestry Centre (ICRAF), Kenya G. M. Ndegwa --- Jomo Kenyatta University of Agriculture and Technology (JKUAT), Kenya A. Sila --- World Agroforestry Centre (ICRAF), Kenya P. T. Kamoni --- Kenya Agricultural and Livestock Research Organization (KALRO), KenyaMethods for rapid and accurate soil tests are needed for stability-related soil properties, which are valuable for non-agricultural land use. The study tested the applicability of mid-infrared (MIR) spectroscopy for rapid estimation of selected stability-related soil properties. Two sample sets,... -
Anthropometric characteristics and nutritional status of older adults in the Lake Victoria Basin of East Africa: region, sex, and age differences
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: Mj Cheserek --- Human Nutrition Department, Pj. Tuitoek --- Human Nutrition Department, Jn Waudo --- Department of Food Nutrition and Dietetics, Jm Msuya --- Department of Food Science and Technology, Jk. Kikafunda --- Department of Food Science and Technology,Background: Malnutrition, either as undernutrition or overnutrition, leads to detrimental alterations in body composition. The objective of this study was to investigate selected anthropometric measurements, and the nutritional status of older men and women living in the Lake Victoria Basin... -
Monitoring Victoria’s public forests: implementation of the Victorian Forest Monitoring Program
Item type: Journal Article • Journal: Southern Forests: a Journal of Forest Science • Authors: Andrew Haywood --- European Forest Institute, Spain Kristen Thrum --- Victorian Department of Environment, Land, Water and Planning, Australia Andrew Mellor --- School of Mathematical and Geospatial Sciences, Australia Christine Stone --- New South Wales Department of Primary Industries, AustraliaA new strategic inventory across all publicly managed forests has been installed in Victoria. For the preceding two decades, Victoria’s forest inventory has been compiled from various data sources from across the state, an approach that doesn’t allow information about... -
Land Cover Change Impacts on Beef Cattle Productivity under Changing Climate: Case of Ilemela and Magu Districts, Tanzania
Item type: Journal Article • Journal: East African Agricultural and Forestry Journal • Authors: Siwa Ernest Nkya --- Directorate of Forest Production Research, Tanzania Martin Hagai --- Department of Geoinformatics, Tanzania Japhet Joel Kashaigili --- Department of Forest Resources Assessment and Management, TanzaniaThe study focused on contributing to the spatial knowledge of the impacts of land cover changes on beef cattle production under a changing climate in rangelands of the Lake Victoria Basin (LVB), so as to establish a strategy for improving... -
Threats posed by xenoestrogenic chemicals to the aquatic ecosystem, fish reproduction and humans: a review
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: I Badamasi --- , Uganda R Odong --- , Uganda C Masembe --- , UgandaXenoestrogens mimic and interfere with natural functions of oestrogens and adversely affect fish reproduction. Pesticides, plastics, wastewaters and pharmaceuticals are sources of xenoestrogens, and are carried through surface runoffs to water bodies at concentration levels that are harmful to aquatic... -
World Wars and Trauma: Lake Victoria Basin Women Novelists’ Reflections
Item type: Journal Article • Journal: Eastern African Literary and Cultural Studies • Authors: Wafula Yenjela --- , KenyaThis article reads Kenyan novels that catalogue the trauma of the Luo veterans of World War I and II. The focus is on Grace Ogot’s The Promised Land (1966), Margaret Ogola’s The River and the Source (1994), Marjorie Macgoye’s The... -
Understanding the translocation dynamics of Nile tilapia (Oreochromis niloticus) and its ecological consequences in East Africa
Item type: Journal Article • Journal: African Zoology • Authors: Papius Dias Tibihika --- National Fisheries Resources Research Institute, Uganda Harald Meimberg --- Institute for Integrative Nature Conservation Research, University of Natural Resources and Life Sciences Vienna (BOKU), Austria Manuel Curto --- Institute for Integrative Nature Conservation Research, University of Natural Resources and Life Sciences Vienna (BOKU), AustriaThe Nile tilapia (Oreochromis niloticus) is the second-most economically important fish species in East African countries (EAC), surpassed only by the Nile perch (Lates niloticus). It is the most-farmed freshwater fish species in EAC and the second-most-farmed worldwide. Currently, in... -
Perception of proposed preliminary food-based dietary guidelines for Lake Victoria region of Kenya: findings from a qualitative study among adult community members
Item type: Journal Article • Journal: South African Journal of Clinical Nutrition • Authors: EC Korir --- Egerton University, Kenya PJ Tuitoek --- Murang’a University of Technology, Kenya D Marais --- Warwick Medical School, United Kingdom -
Barriers to linkage and retention in HIV care still persist among adolescent girls and young women in western Kenya
Item type: Journal Article • Journal: African Journal of AIDS Research • Authors: Zachary A Kwena --- Kenya Medical Research Institute, Kenya Rivet K Amico --- University of Michigan, USA Tsitsi B Masvawure --- College of the Holy Cross, USA Kenneth K Ngure --- Jomo Kenyatta University of Agriculture and Technology, Kenya Elizabeth A Bukusi --- Kenya Medical Research Institute, Kenya Robert H Remien --- New York State Psychiatric Institute and Columbia University, USA Perez O Ochwal --- Kenya Medical Research Institute, Kenya Nadia Nguyen --- New York State Psychiatric Institute and Columbia University, USA Joanne E Mantell --- New York State Psychiatric Institute and Columbia University, USAAdolescent girls and young women (AGYW) in sub-Saharan Africa experience delayed linkage to and poor retention in HIV care. Identifying and addressing specific barriers in HIV care programming is important to achieving the upgraded UNAIDS 95-95-95 targets and epidemic control...