Arapaima gigas

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Arapaima gigas
Arapaima gigas captivity.jpg
Arapaima Gigas
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Osteoglossiformes
Family: Osteoglossidae
Genus: Arapaima
Species: A. gigas
Binomial name
Arapaima gigas
(Schinz, 1822)
  • Sudis gigas Schinz, 1822
  • Sudis gigas G. Cuvier, 1829 (ambiguous)
  • Arapaima gigas (G. Cuvier, 1829) (ambiguous)
  • Sudis pirarucu Spix & Agassiz, 1829 (ambiguous)
  • Vastres mapae Valenciennes, 1847
  • Vastres cuvieri Valenciennes, 1847
  • Vastres agassizii Valenciennes, 1847
  • Vastres arapaima Valenciennes, 1847

Arapaima gigas is a species of arapaima, once believed to be the sole species in the genus. This species is only known from old museum specimens and its exact native range is unclear. This organism is the biggest freshwater fish to ever live in this world. Living in the Amazon River, the males act as mouth-brooders during spawning seasons. These organisms breathe oxygen directly from the air. Young Arapaima takes air around every 5 minutes. While the adults takes it around every 20 minutes.


  1. ^ World Conservation Monitoring Centre 1996. Arapaima gigas. In: IUCN 2013. IUCN Red List of Threatened Species. Version 2013.1. < Archived June 27, 2014, at the Wayback Machine.>. Downloaded on 04 October 2013.

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