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Hydrocynus vittatus, the African tigerfish, tiervis or ngwesh [3] is a predatory freshwater fish distributed throughout much of Africa. This fish is generally a piscivore but it has been observed leaping out of the water and catching barn swallows in flight.
Another famous species, simply called the tigerfish (Hydrocynus vittatus), is commonly found in the southernly Okavango Delta, and the Zambezi River, and also in the two biggest lakes along the Zambezi, Lake Kariba which borders Zimbabwe and Zambia, Kabombo River in Zambia and Cabora Bassa in Mozambique, and finally in the Jozini dam in South ...
Five species of Hydrocynus tigerfish are currently recognised. [6] Hydrocynus brevis (Günther, 1864) (Tigerfish) Hydrocynus forskahlii (G. Cuvier, 1819) (Elongate tigerfish) Hydrocynus goliath Boulenger, 1898 (Giant tigerfish) Hydrocynus tanzaniae B. Brewster, 1986 (Blue tigerfish) Hydrocynus vittatus Castelnau, 1861 (Striped tigerfish)
The African Tiger Fish (Hydrocynus vittatus) is locally known as Wagassa. It grows up to 105 cm long and 28 kg in weight. It has long gill rakers. The tips of adipose and dorsal fins black. The forked edge of its tail fin is black. It prefers warm, well-oxygenated water in larger rivers and lakes.
In Lake Kariba the most important predator on the Lake Tanganyika sardine is Hydrocynus vittatus, and the population in Lake Kariba increased following the introduction of the sardines. The diet of H. vittatus changed and as much as 70% of the food eaten by H. vittatus consisted of sardines by 1971.
Hepsetus cuvieri overlaps in its distribution and habitat with the African tigerfish Hydrocynus vittatus and there is also a large degree of overlap in prey. The tigerfish prefers open, better oxygenated water and hunts by rapid pursuit of prey while H. cuvieri prefers dense vegetation where it is an ambush predator.
Hydrocynus goliath is a piscivore, feeding on any fish it can overpower, including smaller members of the same species. Their huge, powerful, rigid teeth make them one of the most ferocious predators of the Congo basin, dangerous for the smaller fish they prey on as well as for the hunters who attempt to capture them for sport and for food.
Hydrocynus forskahlii is preserved by salting, especially in Upper Egyptian Nile, but most are now imported as salted fish from Sudan. [1] Tigerfish are rare in the aquarium trade but this species is the most commonly traded and kept species. [5] As Hydrocynus forskahlii is a commercially important species it suffers from heavy fishing pressure ...