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Arapaima gigas  (Schinz, 1822)

Arapaima
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Arapaima gigas
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Brazil country information

Common names: Bodeco, Pira urucu, Pirarucu
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: highly commercial | Ref: Ferreira, E.J.G., J.A.S. Zuanon and G.M. dos Santos, 1998
Aquaculture: | Ref:
Regulations: restricted | Ref:
Uses: live export: yes;
Comments: Known from the Amazon River basin (Ref. 50891). Much appreciated food fish. Overfished in 1998. Catch prohibited from November to March (Ref. 27548). Also Ref. 1739.
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: Ferreira, E.J.G., J.A.S. Zuanon and G.M. dos Santos, 1998
National Database:

Classification / Names

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

Common names from other countries

Main reference

Size / Weight / Age

Max length : 450 cm TL male/unsexed; (Ref. 6398); common length : 200 cm TL male/unsexed; (Ref. 557); max. published weight: 200.0 kg (Ref. 557)

Length at first maturity
Lm ?, range 145 - 154 cm

Environment

Freshwater; demersal; pH range: 6.0 - 6.5; dH range: 10 - ?

Climate / Range

Tropical; 25°C - 29°C (Ref. 2060), preferred ?; 5°N - 11°S

Distribution

South America: Amazon River basin. International trade restricted (CITES II, since 1.7.75). The active fishing of this fish has reduced both the population size, and occurrence of large individuals, especially around the populated regions of the Amazon (Ref. 50891).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Biology     Glossary (e.g. epibenthic)

Often referred to as the largest freshwater fish. Builds a nest of about 15 cm depth and 50 cm width in sandy bottoms. Spawns in April and May and guards the eggs and the young. Obligate air breather. The fish rises to the surface of the water and inspires air in a noisy, distinctive gulp, which is reported to carry for long distances (Ref. 50891). Threatened due to over harvesting (Ref. 58490).

IUCN Red List Status (Ref. 115185)

Threat to humans

  Harmless



Human uses

Fisheries: commercial; aquaculture: commercial; gamefish: yes; aquarium: public aquariums

More information

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

Download XML

Internet sources

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805)
PD50 = 0.5938 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Trophic Level (Ref. 69278)
4.5   ±0.0 se; Based on diet studies.

Resilience (Ref. 69278)
Low, minimum population doubling time 4.5 - 14 years (tm=4-6; Fec=47,000)

Vulnerability (Ref. 59153)
Moderate to high vulnerability (54 of 100)
Price category (Ref. 80766)
Unknown