Arapaima leptosoma

Arapaima leptosoma is a species of freshwater fish endemic to Brazil. It is a member of the arapaimas, a genus of air-breathing fish that contains some of the world's largest freshwater fish. Like other members of the genus Arapaima, this fish can breathe air. It is known only from the confluence of the Solimões and Purus Rivers in Amazonas, Brazil, although due to the lack of obvious geographic barriers, it likely has a larger range.[1][4][5][6]

Arapaima leptosoma
In Sevastopol Zoo
CITES Appendix II (CITES)[2]
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Osteoglossiformes
Family: Osteoglossidae
Genus: Arapaima
Species:
A. leptosoma
Binomial name
Arapaima leptosoma

Described in 2013, it is the first new member of Arapaima to be described since 1847. It is known from a single holotype that likely represents a juvenile individual.[1] Live individuals occasionally show up in the aquarium trade, although they are usually misidentified as Arapaima gigas.[7][8] It has a deep caudal peduncle relative to other species in its genus.[3]

It is classified as data deficient by the IUCN Red List due to the lack of information about the population or threats to species. However, it is presumably threatened by overfishing as with other members of the genus.[1]

References
  1. Frederico, R.G. (2022). "Arapaima leptosoma". IUCN Red List of Threatened Species. 2022: e.T162701510A162701567.
  2. "Appendices | CITES". cites.org. Retrieved 2022-01-14.
  3. Stewart D. J. (2013). "A New Species of Arapaima (Osteoglossomorpha: Osteoglossidae) from the Solimões River, Amazonas State, Brazil". Copeia 2013(3); 470-476.
  4. "Arapaima leptosoma". www.fishbase.se. Retrieved 2023-01-08.
  5. "Practicalfishkeeping.co.uk". Archived from the original on 2014-11-29. Retrieved 2013-10-15.
  6. Anderson, Natali (2013-10-11). "New Species of Giant Fish Arapaima Discovered in Brazil | Sci.News". Sci.News: Breaking Science News. Retrieved 2023-01-10.
  7. william (2013-10-23). "New Arapaima species -Arapaima leptosoma - Slender Arapaima". Aquatic Community. Retrieved 2023-01-10.
  8. Lawrence, James (2013-10-17). "New Arapaima Species Described". AMAZONAS Magazine. Retrieved 2023-01-10.


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