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Osteoglossum bicirrhosum  (Cuvier, 1829)

Arawana
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Native range | All suitable habitat
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Osteoglossum bicirrhosum   AquaMaps   Data sources: GBIF OBIS
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Image of Osteoglossum bicirrhosum (Arawana)
Osteoglossum bicirrhosum
Picture by Landines, M.


Philippines country information

Common names: Silver arowana
Occurrence: questionable
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Collected from Metro Manila as specimen for living fish museum (Ref. 81820).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/rp.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Central Luzon State University, 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

Main reference

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)

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).

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).

IUCN Red List Status (Ref. 115185)

Threat to humans

  Harmless



Human uses

Fisheries: commercial; gamefish: yes; aquarium: commercial

More information

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
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Stamps, Coins Misc.
Sounds
Ciguatera
Speed
Swim. type
Gill area
Otoliths
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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