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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.
The genus contains five species, [2] all commonly known as "African tigerfish" for their fierce predatory behaviour and other characteristics that make them excellent game fish. [3] Hydrocynus are normally piscivorous, [4] but H. vittatus is proven to prey on birds in flight. [5]
Tigerfish can refer to fish from various families, and derives from official and colloquial associations of these with the tiger (Panthera tigris).However, the primary species designated by the name "tigerfish" are African and belong to the family Alestidae.
The goliath tigerfish has a characteristic silvery gray dorsum and flanks, with a tunniform body plan similar to that of tuna, featuring black adipose fins. The goliath tigerfish is described as the "Monster Fish of the Congo" by a 2008 documentary by National Geographic, a reflection of its monster-like qualities and of its perception by local people and hunters.
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 ...
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.
The tigerfish is silver in colour when young, with thin black horizontal stripes and an elongated body that tapers at both ends. As the fish grows, it will develop a bronze coloration and the stripes will fade. The ventral and caudal fins have a slight red-orange tint, and the adipose fin is grey to black.
Hydrocynus tanzaniae is a large, predatory fish. It has pronounced dentition similar to those found in Hydrocynus forskahlii. [2] The holotype was nine and a half inches long (247mm), [2] but specimens have been caught by fishermen greater than 27 inches (70 cm) and 25 pounds (11 kg). [3]