Biology:Cichla orinocensis

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Short description: Species of fish


Cichla orinocensis
Pesca Esportiva na Amazônia 16.JPG
Peacock bass.jpg
Adult above, juvenile below
Scientific classification edit
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Cichliformes
Family: Cichlidae
Genus: Cichla
Species:
C. orinocensis
Binomial name
Cichla orinocensis
Humboldt, 1821

Cichla orinocensis, sometimes known as the Orinoco peacock bass,[2] tucunaré[1] or tucunaré miri,[2] is a very large species of cichlid. This peacock bass is native to the Rio Negro and Orinoco River basins in northern South America.[3] It mainly occurs in blackwater rivers.[4] Despite the name, it is not the only peacock bass in the Orinoco, as the river also is home to C. intermedia, C. nigromaculata, and C. temensis.[4] Where it overlaps with the last species, C. orinocensis prefers more slow-moving and shallow waters.[5] They are able to tolerate more turbid waters than other species of peacock bass.

It reaches up to about 62 cm (2 ft) in standard length.[3] Adults are easily recognized by the three large gold-edged dark spots on the side of their body (a fourth spot on the tail) and lack of dark markings on the operculum.[4][5]

A genetic study has indicated a clear divergence between the Orinoco and Rio Negro populations. If split, the Orinoco would retain the scientific name C. orinocensis.[6]

References

  1. 1.0 1.1 Frederico, R.G. (2023). "Cichla orinocensis". IUCN Red List of Threatened Species 2023: e.T85282026A85282030. doi:10.2305/IUCN.UK.2023-1.RLTS.T85282026A85282030.en. https://www.iucnredlist.org/species/85282026/85282030. Retrieved 2 January 2024. 
  2. 2.0 2.1 "Common names of Cichla orinocensis". October 2023. https://fishbase.mnhn.fr/ComNames/CommonNamesList.php?ID=46779&GenusName=Cichla&SpeciesName=orinocensis&StockCode=39397. 
  3. 3.0 3.1 Froese, Rainer and Pauly, Daniel, eds. (2017). "Cichla orinocensis" in FishBase. October 2017 version.
  4. 4.0 4.1 4.2 Kullander, Sven; Efrem Ferreira (2006). "A review of the South American cichlid genus Cichla, with descriptions of nine new species (Teleostei: Cichlidae)". Ichthyological Explorations of Freshwaters 17 (4). 
  5. 5.0 5.1 "'Borboleto'—Cichla orinocensis". Acute Angling. http://www.acuteangling.com/amazon-gamefish-science/peacock-bass-species-guide/taxonomy-2003/cichla-orinocensis.html. Retrieved 17 October 2017. 
  6. Willis, Stuart C.; Nunes, Mario S.; Montaña, Carmen G.; Farias, Izeni P.; Lovejoy, Nathan R. (2007). "Systematics, biogeography, and evolution of the Neotropical peacock basses Cichla (Perciformes: Cichlidae)". Molecular Phylogenetics and Evolution 44 (1): 291–307. doi:10.1016/j.ympev.2006.12.014. PMID 17275345. 

Wikidata ☰ Q3752864 entry