HomeFish encyclopediaRay-finned fishesCarpsMinnows or carpsGiant salmon carp Giant salmon carp (Aaptosyax grypus) Scientific name: Aaptosyax grypus Rainboth, 1991 The Giant salmon carp (Aaptosyax grypus) is a freshwater fish of the family Cyprinidae. Native range: Asia, Mekong River. BiologyWell-developed adipose eye-lid, covering most of eye except pupil in large adults, less extensive in juveniles; presence of a large symphyseal knob in lower jaw fitting in a median notch in upper jaw.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAaptosyax grypusFamilyCyprinidae (Minnows or carps)OrderCypriniformes (Carps)ClassActinopterygii (Ray-finned fishes)Maximum length130EnvironmentFreshwater; pelagic; potamodromousClimateTropicalDistributionAsia: Mekong River.Conservation status (IUCN)Data deficient (DD)Threat to humansHarmlessUsesFisheries:ResilienceVery Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026