Environment: milieu / climate zone / depth range / distribution range
Ecology
Freshwater; brackish; benthopelagic; potamodromous (Ref. 138296). Tropical
Asia.
Size / Weight / Age
Maturity: Lm ?  range ? - 20 cm
Max length : 80.0 cm SL male/unsexed; (Ref. 46915); max. reported age: 32 years (Ref. 138296)
Dorsal spines (total): 2; Dorsal soft rays (total): 6 - 8; Anal spines: 0; Anal soft rays: 33 - 43. Body somewhat elongated with short predorsal length (25.2-29.2% SL); a long caudal peduncle (17.2-21.8% SL); short head length (16.1-20.1% SL); and, short mandibular barbels (length 11.7-42.2% HL). Swim bladder 3-chambered, extending to above anal-fin base (Ref. 46915). Dorsum dark blue to blue-black; 3-4 lowermost principal caudal rays white; vomerine teeth appearing as 2 joined patches in juveniles (Ref. 12693); vomerine teeth united into quadrangular patch, 1.5 times broader than long, not confluent with palatine teeth patch; anal fin base elongate, its length 3.1-3.6 times in SL; dorsal and pectoral fin spines slender; snout blunt (Ref. 43281).
Body shape (shape guide): elongated; Cross section: circular.
Facultative air-breathing (Ref. 126274); Found in lakes and rivers (Ref. 56749). Adults occur in estuaries and lower reaches but has also been observed in the upper reaches during the rainy season. Species is omnivorous with a tendency to opportunism (Ref. 46915).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Pouyaud, L., R. Gustiano and G.G. Teugels, 2002. Systematic revision of Pangasius polyuranodon (Siluriformes, Pangasiidae) with description of two new species. Cybium 26(4):243-252. (Ref. 46915)
IUCN Red List Status (Ref. 130435: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00217 - 0.00962), b=3.09 (2.91 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 2.8 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): Very Low, minimum population doubling time more than 14 years (tmax=31.6;).
Fishing Vulnerability (Ref.
59153): High vulnerability (59 of 100).
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