Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; potamodromous (Ref. 51243). Tropical
Asia: China, Vietnam, and Laos; confined to the upper Mekong River system.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 46.5 cm SL male/unsexed; (Ref. 35913)
soft rays: 5;
Vertebrae: 41 - 43. Mentum long, usually reaching posteriorly to or beyond junction of upper and lower lips; soft oral structures tend to be more hypertrophied than in other Tor species, especially in larger individuals; gill rakers on lateral face of first gill arch 20-22; scales in lateral series 23-24; predorsal scales 8-10; transverse scale rows 4/1/2; vertebrae 25-27+15-16=41-43; juveniles overall silvery; pectoral, pelvic, anal, and caudal fins rosy to reddish; adults and subadults with a deep, dark midlateral stripe, body darkish above and brownish beneath; pectoral, pelvic, and caudal fins deep red (Ref. 35913).
Inhabits pools and runs over gravel and cobble in clear rivers in forest areas (Ref. 12693). Omnivorous, feeding on vegetable matter such as fruits, as well as fish, crustaceans and other invertebrates (Ref. 12693). Occasionally caught, but never in large numbers (Ref. 12693).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Roberts, T.R., 1999. Fishes of the cyprinid genus Tor in the Nam Theun watershed (Mekong Basin) of Laos, with description of a new species. Raffles Bull. Zool. 47(1):225-236. (Ref. 35913)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00432 - 0.02113), b=3.01 (2.83 - 3.19), in cm total length, based on LWR estimates for this Subfamily-BS (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.47 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Moderate vulnerability (43 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .