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The red-bellied piranha belongs to the family Serrasalmidae, which is a group of medium to large-sized characids and includes other closely related omnivores such as pacus. [5] They are characterized by deep, lateral compressed bodies and long dorsal fins. [ 6 ]
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]
In a review where 38–39 piranha species were recognized, 25 were from the Amazon and 16 from Orinoco, while only three were present in Paraguay–Paraná and two in São Francisco. [9] Most species are restricted to a single river system, but some (such as the red-bellied piranha) occur in several.
In some deep sea fishes like the Antimora, the swim bladder maybe also connected to the macula of saccule in order for the inner ear to receive a sensation from the sound pressure. [8] In red-bellied piranha, the swim bladder may play an important role in sound production as a resonator. The sounds created by piranhas are generated through ...
Red-bellied pacu: Colossoma bidens: 120 cm (47 in) 78–82 °F (26–28 °C) Red piranha: Pygocentrus nattereri: 33 cm (13 in) Redeye piranha, black piranha: Serrasalmus rhombeus: 41.5 cm (16.3 in) Wimple piranha: Catoprion mento: 15 cm (5.9 in) Mylossoma aureum: 30 cm (12 in) Disk tetra: Myleus schomburgkii: 40 cm (16 in) 23 °C to 27 °C 5.0 ...
The red-bellied piranha, a member of the family Serrasalmidae within the Characiformes, is endemic to the Neotropical realm. At least 209 species of characins are found in Africa, including the distichodontids , citharinids , alestids , and hepsetids .
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The presence of fish predators play a large role in the size, shape and swimming performance of the Lithobates clamitans tadpoles. The presence of these predators in their habitat causes the tadpoles to develop small bodies and large tail muscles in order to escape from their predators quicker and more efficiently.