Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Cyprinidae
(Minnows or carps) > Cyprininae
Etymology: Amblyrhynchichthys: Greek, amblys = darkness + Greek, rhyngchos = snout + Greek, ichthys = fish (Ref. 45335).
More on author: Bleeker.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; benthopelagic; potamodromous (Ref. 51243). Tropical
Asia: Mekong and Chao Phraya basins, Malay Peninsula, Sumatra, Western and South Borneo (Ref. 26580). Reported from the Maeklong (Ref. 26336).
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 40.0 cm SL male/unsexed; (Ref. 30857); common length : 30.0 cm SL male/unsexed; (Ref. 12693)
Blunt and truncate snout; last simple dorsal ray denticulated behind; adipose eyelid (Ref. 43281).
Found mainly in rivers and enters flooded fields (Ref. 12975). Juveniles occur in October in the lower Mekong basin (Ref. 12975). Feeds on periphyton; other minor food items include phytoplankton, zooplankton and benthic algae (Ref. 10616). Small individuals are used for prahoc, larger ones are marketed fresh (Ref. 12693).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Lim, K.K.P., P.K.L. Ng, M. Kottelat and M. Zakaria-Ismail, 1993. A preliminary working list of native freshwater fishes of Peninsular Malaysia with reference to some taxonomic notes. Asian Wetland Bureau, Institute of Advanced Studies, University of Malysia, Kuala Lumpur, Malaysia. 9 p. (Ref. 5460)
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. 82804
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00611 - 0.01635), b=3.05 (2.91 - 3.19), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 2.4 ±0.21 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 (39 of 100).