Brazil country information

Common names: Arauaná, Arowana, Aruaná
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: minor commercial | Ref: Ferreira, E.J.G., J. Zuanon and G.M. dos Santos, 1996
Aquaculture: | Ref:
Regulations: | Ref:
Uses: live export: yes;
Comments: Present in the Oyapock River which forms the border between Brazil and French Guiana (Ref. 12225). Exported for the aquarium trade, especialy from the Rio Negro area (Ref. 27548) which is an illegal activity in Brazil (Ref. 102836).
National Checklist:
Country Information: httpss://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Planquette, P., P. Keith and P.-Y. Le Bail, 1996
National Database:

Classification / Names

Actinopterygii (ray-finned fishes) > Osteoglossiformes (Bony tongues) > Osteoglossidae (Arowanas)
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL

Common names from other countries

Silver arowana, Kadal dvouvousý, Ostnojazyčnatec dvouvousý, ... more

Main reference

Ferraris, C.J. Jr. 2003. (Ref. 50892)
References | Biblio | Coordinator | Collaborators

Size / Weight / Age

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

Environment

Freshwater; benthopelagic

Climate / Range

Tropical; 24°C - 30°C (Ref. 1672), preferred ?

Distribution

South America: Amazon River basin, Rupununi and Oyapock Rivers.
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

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).

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).

IUCN Red List Status (Ref. 115185)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: commercial; gamefish: yes; aquarium: commercial

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Food consumption
Ration

Common names
Synonyms
Metabolism
Predators
Ecotoxicology
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development

Age/Size
Growth
Length-weight
Length-length
Length-frequencies
Morphometrics
Morphology
Larvae
Larval dynamics
Recruitment
Abundance

References
Aquaculture
Aquaculture profile
Strains
Genetics
Allele frequencies
Heritability
Diseases
Processing
Mass conversion

Collaborators
Pictures
Stamps, Coins
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
Brains
Vision

Tools

Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

Download XML

Summary page | Point data | Common names | Photos

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD₅₀ = 0.7656 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
3.4 ±0.48 se; Based on food items.

Resilience (Ref. 69278)

Vulnerability (Ref. 59153)
Moderate vulnerability (39 of 100)

Price category (Ref. 80766)
Unknown

Osteoglossum bicirrhosum (Cuvier, 1829)