Articles by Keyword: West Africa

Search results for West Africa

We found 1133 results for you
  1. A COMPARISON OF DIFFERENT METHODS OF AGE DETERMINATION IN THE SHARPTOOTH CATFISH <em>CLARIAS GARIEPINUS</em>

    A COMPARISON OF DIFFERENT METHODS OF AGE DETERMINATION IN THE SHARPTOOTH CATFISH <em>CLARIAS GARIEPINUS</em>

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    Growth of the sharptooth catfish Clarias gariepinus from four southern African impoundments was estimated by back-calculating age from vertebrae and spines. Length frequency analysis supported the growth estimates derived from vertebrae but not those from spines.- Spines under-estimated the age...
  2. A PRELIMINARY LIMNOLOGICAL INVESTIGATION OF TWELVE SOUTHERN AFRICAN GEOTHERMAL WATERS

    A PRELIMINARY LIMNOLOGICAL INVESTIGATION OF TWELVE SOUTHERN AFRICAN GEOTHERMAL WATERS

    Item type: Journal Article • Journal: Journal of the Limnological Society of Southern Africa
    The ionic composition and algal flora of twelve geothermal waters in southern South West Africa and north-western South Africa are described, many for the first time. Water temperatures ranged from 24,9 to 66 °C and salinity values indicated moderate mineralization...
  3. Community dynamics and phytomass of herbaceous species in the Sudaniansavanna-woodlands of Burkina Faso: short-term impact of burning season

    Community dynamics and phytomass of herbaceous species in the Sudaniansavanna-woodlands of Burkina Faso: short-term impact of burning season

    Item type: Journal Article • Journal: African Journal of Range & Forage Science
    Fire is important for the maintenance and conservation of African savanna ecosystems, and prescribed fire is used in the Sudanian savanna-woodlands of West Africa as a forest management tool. Yet, the effects of fire on savanna ecosystems and especially on...
  4. HIV/AIDS fatalism, beliefs and prevention indicators in Gabon:comparisons between Gabonese and Malians

    HIV/AIDS fatalism, beliefs and prevention indicators in Gabon:comparisons between Gabonese and Malians

    Item type: Journal Article • Journal: African Journal of AIDS Research
    HIV/AIDS fatalism may impact on individuals’ health-seeking behaviour and HIV-prevention efforts. This descriptive study measured levels of HIV/AIDS fatalism and documented HIV/AIDS beliefs and practices among a sample of Gabonese and Malians living in Gabon, West Africa. The Powe Fatalism...
  5. Courting success in HIV/AIDS prevention: the challenges of addressing aconcentrated epidemic in Senegal

    Courting success in HIV/AIDS prevention: the challenges of addressing aconcentrated epidemic in Senegal

    Item type: Journal Article • Journal: African Journal of AIDS Research
    This article presents findings from a study of HIV/AIDS programmes for urban sex workers in Dakar, Senegal. The objective of the research was to assess HIV prevention and treatment efforts to date, and to identify challenges that must be overcome...
  6. Analysis of factors associated with failure to return for an HIV-test result in The Gambia

    Analysis of factors associated with failure to return for an HIV-test result in The Gambia

    Item type: Journal Article • Journal: African Journal of AIDS Research
    Knowing one's HIV status is fundamental to the prevention and treatment of HIV and AIDS. However, HIV prevention is defeated if individuals who opt to be tested fail to return for their test result. Despite the burden of HIV and...
  7. Phylogeography of the African catfish, <em>Chrysichthys maurus</em> (Valenciennes, 1839)

    Phylogeography of the African catfish, <em>Chrysichthys maurus</em> (Valenciennes, 1839)

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Polymorphism at 19 allozyme loci was studied in 227 individuals of the catfish, Chrysichthys maurus (Valenciennes, 1839), collected from ten populations representing nine different river basins in west Africa. Eleven of the loci studied were polymorphic. Analysis showed that populations...
  8. Anaesthetic challenges in emergency peripartum hysterectomy in West Africa: a Nigerian perspective

    Anaesthetic challenges in emergency peripartum hysterectomy in West Africa: a Nigerian perspective

    Item type: Journal Article • Journal: Southern African Journal of Anaesthesia and Analgesia
    Background: To determine the foeto-maternal outcome and the anaesthetic challenges in emergency peripartum hysterectomy at the University of Nigeria Teaching Hospital (UNTH), Enugu, Nigeria.
  9. Survival rates in West African savanna birds

    Survival rates in West African savanna birds

    Item type: Journal Article • Journal: Ostrich: Journal of African Ornithology
    Despite widespread interest in life histories and the comparison of parameters between tropical and temperate regions, there are still relatively few multispecies studies assessing annual survival in Afrotropical species. We used data from systematic mist-netting of savanna birds in Nigeria,...
  10. Epipelagic siphonophores off the east coast of South Africa

    Epipelagic siphonophores off the east coast of South Africa

    Item type: Journal Article • Journal: African Journal of Marine Science
    This work represents the first systematic analysis of the common Siphonophora from the Agulhas Current (South-West Indian Ocean). A total of 56 species of siphonophores was collected from a series of three largely epipelagic cruises between Algoa Bay and the...