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Pygocentrus cariba or black spot piranha is a species of piranha endemic to Venezuela and Colombia; specifically, to the Orinoco River basin lowlands and the Llanos region. This species can reach a total length of 27.9 centimetres (11.0 in). It is popular as a game fish. [2]
This characteristic combined with its large size make it a danger to humans. Piranha's attacks on humans are anecdotal for the most part. The piranha mostly prefers to eat small fish and insects, along with seeds and aquatic plant material. The pygocentrus piraya plays a key role in their ecosystem by regulating the population of other fish [5]
Like most fish, when the wimple piranha feeds on small fish or scales floating in the water, it uses suction feeding. However, to feed on scales attached to fish, it uses ram feeding, where the predator will charge at the fish; the force of this collision actually knocks scales free. The teeth are used to scrape scales from the body.
The red-bellied piranha, also known as the red piranha (Pygocentrus nattereri), is a type of piranha native to South America, found in the Amazon, Paraguay, Paraná and Essequibo basins, as well as coastal rivers of northeastern Brazil. [2] [3] This fish is locally abundant in its freshwater habitat. [4]
A piranha or piraña (/ p ɪ ˈ r ɑː n j ə ˌ-r æ n /, or / p ɪ ˈ r ɑː n ə /; Portuguese: [piˈɾɐ̃ɲɐ], Spanish:) is any of a number of freshwater fish species in the family Serrasalmidae, [1] or the subfamily Serrasalminae within the tetra family, Characidae [2] in order Characiformes.
The black piranha was first formally described in 1766 as Salmo rhombeus with the type locality given as Brokopondo on the Suriname River in Surinam. [6] When Bernard Germain de Lacépède created the genus Serrasalmus in 1803 the only species he placed in it was Salmo rhombeus , so this species is the type species of its genus. [ 7 ]
Pygocentrus is a genus of the piranha family Serrasalmidae. All species are native to tropical and subtropical South America. All the species are predatory, scavengers and may form large schools. The famous red-bellied piranha, Pygocentrus nattereri, is one of four species in the genus. [1]
Its tributary, Rio Negro, contains a mixture of sediments and saltwater where it supports botos feeding habit. Between the border of Brazil and Argentina lies Iguassu Falls, which is the widest waterfall ever known. In Pantanal wetlands, 300 species of fish breed here, including the Red-bellied piranhas and Dorados.