Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Leuciscidae
(Minnows) > Pseudaspininae
Etymology: Oreoleuciscus: Greek, oreos = mountain+ Greek, leykiskos = white mullet (Ref. 45335); angusticephalus: Named for its most typical character of being narrow-headed.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; depth range - m (Ref. ), usually - m (Ref. ). Temperate; 0°C -
Asia: endemic to Mongolia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 23.8 cm SL male/unsexed; (Ref. 57727)
Apparently similar to other piscivirous form of Altai osman with individuals having a long life duration (more than 40 years); reaching maturity at 8-9 years at body length of 20-24 cm. The young feed on plankton with fish as predominant food in the diet of the adults. Spawning occurs in May and June, with eggs laid on the sand, pebble, vegetation (spawning time and place partly coincide with O. potanini (Ref. 57727).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Bogutskaya, N.G., 2001. A revision of Altai Osmans of the genus Oreoleuciscus (Cyprinidae: Leuciscinae) with a description of a new species, O. angusticephalus, from River Kobdo (Hovd) system, West Mongolia. pp. 5-43 In O.N. Pugachev and A.V. Balushkin. Proc. Zool. Inst. Acad. Sci. USSR, Vol. 287. (Ref. 57727)
IUCN Red List Status (Ref. 124695)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref. 93245
Trophic level (Ref. 69278
): 3.3 ±0.4 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (43 of 100) .