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Phylogenetic relationships between Synodontis species: some preliminary results
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: EE Bruwer FH van der Bank GJ Steyn M WinkThe aim of this study was to identify genetic markers and morphological characters to distinguish Synodontis species, because certain species are extremely difficult to identify due to the taxonomically unreliable nature of prominent morphological features. Fixed allele mobility differences were... -
A morphological key for the identification of southern African Synodontis species Cuvier, 1816 (Teleostei: Mochokidae)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: EE Bruwer FH van der BankThe identification of the southern African Synodontis species is hampered by variable and overlapping morphological characteristics such as colour, pigmentation patterns and morphometric ratios. Species are often misidentified due to the complicated nature of the present identification keys. The morphological... -
The food and feeding habits of five freshwater and brackish-water fish species in Nigeria
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: PO Ajah MN Georgewill MO AjahThe food and feeding habits of five economically important fresh-and brackish-water fishes, Channa obscura, Chrysichthys nigrodigitatus, Heterotis niloticus, Synodontis nigrita and Trachinotus maxillosus, were investigated. A number of techniques were used to carry out gut content analysis, including the Hynes... -
The introduction, spread and ecology of redclaw crayfish Cherax quadricarinatus in the Zambezi catchment
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: RJ Douthwaite --- Kafue River Trust, Holly Oast, United Kingdom EW Jones --- 3 Cwm Arthur, Myddleton Park, United Kingdom AB Tyser --- Kafue River Trust, Holly Oast, United Kingdom SM Vrdoljak --- Wildtracks Lodge, ZambiaTwo of the four crayfish species brought to Zambia for aquaculture since 1979 are now naturalised. Procamburus clarkii occurs in the Maramba River at Livingstone, close to a former fish farm, whereas Cherax quadricarinatus, deliberately introduced to a number of... -
Spatio-temporal structure of fish communities Mochokidae (Ostariophysi, Siluriformes) in the Malebo Pool, Congo River (Democratic Republic of the Congo)
Item type: Journal Article • Journal: African Journal of Aquatic Science • Authors: JM Tembeni --- Department of Biology, Democratic Republic of the Congo B Mbomba --- Department of Biology, Democratic Republic of the Congo JC Micha --- Universite de Namur (Ringgold standard institution), Belgium V Mbadu --- Department of Biology, Democratic Republic of the CongoAt the level of Malebo Pool of the River Congo, ecological studies of Mochokidae fish communities are non-existent. This study was carried out monthly from July 2009 to October 2010, and bimonthly from March 2011 to August 2013 through experimental...