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Osteoglossum bicirrhosum 8-10cm

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 http://www.fishbase.gr/summary/Osteoglossum-bicirrhosum.html

 

Osteoglossum bicirrhosum  (Cuvier, 1829)

Arawana

Image of Osteoglossum bicirrhosum (Arawana)
Osteoglossum bicirrhosum
Picture by Landines, M.

 

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Osteoglossiformes (Bony tongues) > Osteoglossidae (Arowanas)
Etymology: Osteoglossum: Greek, osteon = bone + Greek, glossa = tongue (Ref. 45335).

 

Environment / Climate / Range Ecology

Freshwater; benthopelagic.   Tropical; 24°C - 30°C (Ref. 1672)

 

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 90.0 cm TL male/unsexed; (Ref. 50892); max. published weight: 6.0 kg (Ref. 72380)

 

Short description Morphology | Morphometrics

Body covered with very big scales; dorsal and anal fins almost fused with the caudal fin; 2 barbels at the extremity of the lower jaw; adult silvery, juvenile with blue glints and a yellow-orange bar (Ref. 12225).

 

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions | Faunafri

South America: Amazon River basin, Rupununi and Oyapock Rivers.

 

Biology     Glossary (e.g. epibenthic)

Is an omnivore with a tendency to feed on fish at the surface. The superior position of the mouth allows it to capture its prey while swimming from below. Also jumps out of the water to feed on large insects (Coleoptera; Ref. 27548). It is capable of adapting to environments with low oxygen levels (Ref. 12225).

 

Main reference Upload your references | References | Coordinator | Collaborators

Ferraris, C.J. Jr., 2003. Osteoglossidae (Arowanas). p. 30. In R.E. Reis, S.O. Kullander and C.J. Ferraris, Jr. (eds.) Checklist of the Freshwater Fishes of South and Central America. Porto Alegre: EDIPUCRS, Brasil.

 

IUCN Red List Status (Ref. 90363)

Threat to humans

Harmless

 

 

 

 

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