Classification / Names
आम नाम | उपशब्द | Catalog of Fishes(वर्ग, प्रजाति) | ITIS | CoL | WoRMS | Cloffa
Environment: milieu / climate zone / गहराई सीमा / distribution range
पारिस्थितिकी
; स्वच्छ जल, अलवण जल ड़िमरसल; pH range: 6.0 - 6.5; dH range: 10 - ?. Tropical; 25°C - 29°C (Ref. 2060); 5°N - 11°S
South America: Amazon River basin. 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).
Length at first maturity / आकार / वज़न / Age
परिपक्व अवधि: Lm 149.5, range 145 - 154 cm
Max length : 450 cm TL पुल्लिंग / अलिंग; (Ref. 6398); common length : 200 cm TL पुल्लिंग / अलिंग; (Ref. 557); अधिकतम प्रकाशित वज़न: 200.0 kg (Ref. 557)
Short description
पहचान कुंजी | आकृति विज्ञान | मौरफोमैटरिक्स
Obligate air-breathing (Ref. 126274); 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). Migrates into higher floodplain habitats with rising water and moves back eventually to lacustrine habitats during low water level (Ref. 116898). Threatened due to over harvesting (Ref. 58490).
Ferraris, C.J. Jr., 2003. Arapaimatidae (Bonytongues). p. 31. 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. (Ref. 50891)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
मात्स्यिकी: व्यापारिक; जलीयकृषि: व्यापारिक; आखेट मत्स्य: हां; जलजीवालय: सार्वजनिक लजीवालय
साधन
Special reports
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इंटरनेट स्रोत
Estimates based on models
Phylogenetic diversity index (संदर्भ
82804): PD
50 = 0.5469 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00594 - 0.02026), b=2.94 (2.77 - 3.11), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (संदर्भ
69278): 4.5 ±0.0 se; based on diet studies.
Generation time: 11.1 ( na - na) years. Estimated as median ln(3)/K based on 2
growth studies.
लौटाव (संदर्भ
120179): निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (tm=4-6; Fec=47,000).
Fishing Vulnerability (Ref.
59153): Moderate to high vulnerability (54 of 100).
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Nutrients (Ref.
124155): Calcium = 29.9 [16.6, 81.3] mg/100g; Iron = 1.02 [0.53, 2.23] mg/100g; Protein = 16 [14, 18] %; Omega3 = 0.387 [0.140, 1.140] g/100g; Selenium = 140 [45, 346] μg/100g; VitaminA = 15.6 [3.9, 64.9] μg/100g; Zinc = 0.648 [0.415, 1.065] mg/100g (wet weight); based on
nutrient studies.
