Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; potamodromous (Ref. 51243). Tropical
Asia: Mekong and Chao Phraya basins.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 120 cm SL male/unsexed; (Ref. 30857)
soft rays: 31 - 35. Body stout and heavy, head broader than long; blue-black dorsum; blunt snout with broad white band on muzzle; single large patch of vomerine teeth with separate patch of palatine teeth on each side (Ref. 12693). Rounded head and blunt rounded snout (Ref. 43281).
Obligate air-breathing in the genus (Ref. 126274); Known from large rivers (Ref. 12693). Found in rapids and also in deeper slower reaches (Ref. 37771). Enters flooded forest (Ref. 9497). Feeds on plants (Ref. 9497). Spawns at the onset of flood season and the young are first seen in June, averaging about 5 cm by mid-June. Marketed fresh (Ref. 12693).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Roberts, T.R. and C. Vidthayanon, 1991. Systematic revision of the Asian catfish family Pangasiidae, with biological observations and descriptions of three new species. Proc. Acad. Nat. Sci. Philad. 143:97-144. (Ref. 7432)
IUCN Red List Status (Ref. 126983)
Threat to humans
Fisheries: minor commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82804
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00479 - 0.01994), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for species & Subfamily-BS (Ref. 93245
Trophic level (Ref. 69278
): 3.2 ±0.47 se; based on food items.
Fishing Vulnerability (Ref. 59153
): Very high vulnerability (88 of 100).
Nutrients (Ref. 124155
): Calcium = 12.7 [7.0, 42.3] mg/100g ; Iron = 0.501 [0.193, 1.402] mg/100g ; Protein = 15.9 [14.4, 17.4] % ; Omega3 = 0.397 [0.149, 1.043] g/100g ; Selenium = 115 [48, 249] μg/100g ; VitaminA = 29.5 [7.2, 113.1] μg/100g ; Zinc = 2.3 [0.8, 4.0] mg/100g (wet weight);