Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Cyprinidae
(Minnows or carps) > Cyprininae
Etymology: Scaphognathops: Greek, skaphe, -eos = boat + Greek, gnathos = jaw + Greek, ops = appearance (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; potamodromous (Ref. 51243); depth range - m (Ref. ), usually - m (Ref. ). Tropical; 0°C -
Asia: Mekong basin in Laos, Thailand and Cambodia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm SL male/unsexed; (Ref. 30857)
Has 9 branched dorsal rays; 5 branched anal rays; wide mouth with broad and massive lower jaw (width 22-26% in head length); rudimentary lower lips; pale yellow to grey caudal fin in life.
Occurs in the main stream of the middle Mekong during dry season (Ref. 12693) in deep slow reaches (Ref. 37769). Migrates to smaller streams or floodplains during rainy season (Ref. 12693). Found also in rapid-running mountain streams (Ref. 12975). Omnivorous, feeding on detritus, periphyton, worms and insects. Breeding occurs at the end of the rainy season, as water levels fall. Marketed fresh (Ref.12693).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Rainboth, W.J., 1996. Fishes of the Cambodian Mekong. FAO species identification field guide for fishery purposes. FAO, Rome, 265 p. (Ref. 12693)
IUCN Red List Status (Ref. 124695)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00524 - 0.01663), b=2.95 (2.80 - 3.10), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 2.4 ±0.19 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (46 of 100) .