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A large South American freshwater food fish (Arapaima gigas) that can attain a length of up to 3 meters (10 feet). Also called pirarucu.

[American Spanish or Portuguese, both probably of Tupian origin.]


(Animals) a very large primitive freshwater teleost fish, Arapaima gigas, that occurs in tropical South America and can attain a length of 4.5 m (15 ft) and a weight of 200 kg (440 lbs): family Osteoglossidae
[via Portuguese from Tupi]
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My targets were arapaima and trahira (wolf fish) on the fly.
In the close margins, there appeared to be quite a lot of activity from predatory fish, including some big Arapaima, which made me feel the Siamese carp would most likely try to keep away from these ferocious predators.
Arapaima gigas (Osteoglossiformes: Arapaimatidae; commonly known as pirarucu) stands out among Neotropical fish.
Natural history and conservation of pirarucu, arapaima gigas, at the Amazonian varzea: red giants in muddy watters.
Among the species most exploited and consumed by the regional population, the pirarucu Arapaima gigas (Schinz 1822), known as Amazon cod, is highly valued in the market, especially when its meat is marketed dried and preserved with salt.
With a primitive lung, arapaima breath air from the surface.
This wide range of species includes mostly bony fish (Class Osteichthyes), both rayfinned fish (Subclass Actinopterygii), the overwhelming majority of cases, and lobe-finned fish (Subclass Sarcopterygii) like Arapaima gigas [109].
Arapaima gigas (Schinz, 1822) (Osteichthyes: Arapaimidae) is the world's largest scale fish, may reach 3 m length, presents wide geographical distribution in the Amazonian region and occurs in the floodplain of the rivers Araguaia-Tocantins, Solimoes-Amazonas and their effluents, Amazonas river in the Peruvian Andes, tributaries of the river systems Essequibo and Rupununi the Guiana (Imbiriba, 2001).