Articles by Author: Justus Rutaisire

Search results for Justus Rutaisire

We found 17 results for you
  1. A histological description of ovarian recrudescence in two <em>Labeo victorianus</em> populations

    A histological description of ovarian recrudescence in two <em>Labeo victorianus</em> populations

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The 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...
  2. Structure and cytology of the testes of <em>Labeo victorianus</em> (Pisces: Cyprinidae)

    Structure and cytology of the testes of <em>Labeo victorianus</em> (Pisces: Cyprinidae)

    Item type: Journal Article • Journal: African Zoology
    Testes macromorphology and histomorphology together with sperm cytology are described for a potamodrometic cyprinid fish, Labeo victorianus, from Lake Victoria. Testes were found to be paired and elongate, suspended by a mesorchium on either side of the swim bladder. A...
  3. Morphology and functional ontogeny of the digestive tract of <em>Barbus altianali</em>s larvae

    Morphology and functional ontogeny of the digestive tract of <em>Barbus altianali</em>s larvae

    Item type: Journal Article • Journal: African Zoology
    The ontogenetic development of digestive structures in Ripon barbel (Barbus altianalis) larvae was investigated using standard histological and histochemical procedures from hatching up to 60 days after hatching (DAH). The study was conducted to determine the best period of exogenous...
  4. Porting an English Spoken Dialogue System to Xhosa and Zulu

    Porting an English Spoken Dialogue System to Xhosa and Zulu

    Item type: Journal Article • Journal: South African Journal of African Languages
    The development of Xhosa and Zulu spoken dialogue systems, based on a working English prototype, is described. While direct translations of the system prompts and recognition grammars from English to Xhosa and Zulu, respectively, were appropriate in some cases, language-...
  5. Integrating phonetics and phonology in the description of the intrusive stop formation process in Zulu

    Integrating phonetics and phonology in the description of the intrusive stop formation process in Zulu

    Item type: Journal Article • Journal: South African Journal of African Languages
    The history of linguistics is characterized by competing frameworks and a generally dichotomous relationship between phonetics and phonology. While the study of phonetics was scientifically informed, phonology tended to be based on impressionistic observations. This dichotomous relationship has often hindered...
  6. Phonetic analysis of Afrikaans, English, Xhosa and Zulu using South African speech databases

    Phonetic analysis of Afrikaans, English, Xhosa and Zulu using South African speech databases

    Item type: Journal Article • Journal: Southern African Linguistics and Applied Language Studies
    We present a corpus-based analysis of the Afrikaans, English, Xhosa and Zulu languages, comparing these in terms of phonetic content, diversity and mutual overlap. Our aim is to shed light on the fundamental phonetic interrelationships between these languages, with a...
  7. Fatty acid composition of muscle and heart tissue of Nile perch, <em>Lates niloticus</em>, and Nile tilapia, <em>Oreochromis niloticus</em>, from various populations in Lakes Victoria and Kioga, Uganda

    Fatty acid composition of muscle and heart tissue of Nile perch, <em>Lates niloticus</em>, and Nile tilapia, <em>Oreochromis niloticus</em>, from various populations in Lakes Victoria and Kioga, Uganda

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    The fatty acid composition in the heart tissue and muscle tissue of the Nile perch, Lates niloticus, and Nile tilapia, Oreochromis niloticus populations from Lakes Kioga and Victoria was determined by methanolysis and gas chromatography of the resulting fatty acid...
  8. Differentiated gonochorism in Nile perch <em>Lates niloticus</em> from Lake Victoria, Uganda

    Differentiated gonochorism in Nile perch <em>Lates niloticus</em> from Lake Victoria, Uganda

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Gonadal development and structure were examined in 317 Nile perch, Lates niloticus, of 4 to 157 cm SL taken from Lake Victoria, Uganda, in 2005–2006. Macroscopic and histological investigation showed a differentiated gonochoristic pattern, with no juvenile intersexuality. Oogonial cells...
  9. Low genetic differentiation among morphologically distinct <em>Labeobarbus</em> species (Teleostei: Cyprinidae) in the Lake Victoria and Albertine basins, Uganda: insights from mitochondrial DNA

    Low genetic differentiation among morphologically distinct <em>Labeobarbus</em> 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
    Labeobarbus 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,...
  10. Reproductive biology of <em>Bagrus docmak</em> in the Victoria Nile, Uganda

    Reproductive biology of <em>Bagrus docmak</em> in the Victoria Nile, Uganda

    Item type: Journal Article • Journal: African Journal of Aquatic Science
    Aspects of the reproductive biology of Bagrus docmak in the Victoria Nile were investigated between November 2005 and October 2006. Macroscopic and histological analysis of the gonads confirmed it as an asynchronous batch spawner which spawns throughout the year with...