| metazoan parasite communities of catfishes (teleostei: siluridae) in benin (west africa). | the need for more precise information on the effect of dry season on fish parasite communities in benin lead us to undergo a focus during this season in one of the major sites of collection fry by fish farmers.metazoan parasites were then inventoried in 166 specimens of catfishes which constituted of c larias gariepinus, clarias ebriensis, synodontis schall, synodontis nigrita, and chrysichthys nigrodigitatus (teleostei: siluridae). those fishes were collected from fishermen of agonlin-lowé at t ... | 2014 | 25106838 |
| camallanus polypteri n. sp. (nematoda:camallanidae) in freshwater fishes from burkina faso. | camallanus polypteri n. sp.is described from polypterus bichir (type host), synodontis schall and clarias anguillaris in lake tingrela, burkina faso. it differs from the other african species of the subfamily camallaninae parasitizing freshwater fishes, in that it lacks tridents. all species of the subfamily camallaninae that lack tridents differ from the new species by at least one of the two following characters: a greater number of longitudinal ridges on the inner surface of the buccal capsul ... | 1997 | 9204501 |
| some nematodes, including two new species, from freshwater fishes in the sudan and ethiopia. | fourteen species (twelve adult and two larval) of nematodes belonging to the ascaridoidea, camallanoidea, cosmocercoidea, habronematoidea, oxyuroidea, seuratoidea and trichinelloidea were collected from fishes in the sudan (river nile and atbara dam lake), whereas only four species (one adult and three larval) of the ascaridoidea, camallanoidea, dioctophymatoidea and trichinelloideafrom fishes in ethiopia (lake tana). the sudanese material also contained two previously unknown species, cucullanu ... | 2017 | 28402283 |
| ultrastructural studies of the spermatogenesis and spermiogenesis of the caryophyllidean cestode wenyonia virilis (woodland, 1923). | spermatogenesis and spermiogenesis of the monozoic caryophyllidean cestode wenyonia virilis (woodland, 1923), an intestinal parasite of synodontis schall (pisces: siluridae), have been investigated by means of transmission electron microscopy for the first time in egypt. spermatogenesis is of a rosette type; each spermatogonium undergoes four mitotic and two meiotic divisions resulting in the formation of sixty four spermatids. these spermatids undergo spermiogenesis and transform into mature sp ... | 2008 | 18568447 |
| discordant population histories of host and its parasite: a role for ecological permeability of extreme environment? | biogeographical and ecological barriers strongly affect the course of micro-evolutionary processes in free living organisms. here we assess the impact of a recently emerged barrier on populations of limnic fauna. genetic diversity and population structure in a host-parasite system (wenyonia virilis tapeworm, synodontis schall catfish) are analyzed in the recently divided turkana and nile basins. the two basins, were repeatedly connected during the holocene wet/dry climatic oscillations, followin ... | 2017 | 28394904 |