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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.
The goliath tigerfish (Hydrocynus goliath) is among the most famous tigerfish. The largest one on record is said to have weighed 70 kg (154 pounds). [ 1 ] It is found in the Congo River system and Lake Tanganyika and is the largest member of the family Alestidae.
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)
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.
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There is only one order and family in this animal class. All of the 77 known species have elongated, eel-like bodies but can be distinguished by their downward-facing mouths. The largest form is the Goliath hagfish (Eptatretus goliath). This species can range up to 1.28 m (4.2 ft) in length and weigh to 6.2 kg (14 lb). [19]
In comparison, piscivorous water birds from Africa eat far more per day despite being a fraction of the body size of a crocodile; for example, a cormorant eats up to 1.4 kg (3.1 lb) per day (about 70% of its own body weight), while a pelican consumes up to 3.1 kg (6.8 lb) per day (about 35% of its own weight).
River Monsters is a British wildlife documentary television series produced for Animal Planet by Icon Films of Bristol, United Kingdom.It is hosted by angler and biologist Jeremy Wade, who travels around the globe in search of big and dangerous fish.