HomeFish encyclopediaRay-finned fishesSticklebacks and SeamothsSticklebacks and tubesnoutsAmur stickleback Amur stickleback (Pungitius sinensis) Scientific name: Pungitius sinensis Guichenot, 1869 The Amur stickleback (Pungitius sinensis) is a freshwater fish of the family Gasterosteidae. Native range: Asia, Korean Peninsula, Japan, Kuril islands, Amur basin and Kamchatka Peninsula. BiologyDorsal spines (total): 7 - 11; Dorsal soft rays (total): 8-13; Anal spines: 1; Anal soft rays: 7 - 11Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific namePungitius sinensisFamilyGasterosteidae (Sticklebacks and tubesnouts)OrderGasterosteiformes (Sticklebacks and Seamoths)ClassActinopterygii (Ray-finned fishes)Maximum length6.5EnvironmentMarine; freshwater; brackish; benthopelagicClimateTemperateDistributionAsia: Korean Peninsula, Japan, Kuril islands, Amur basin and Kamchatka Peninsula.Conservation status (IUCN)Not EvaluatedThreat to humansHarmlessResilienceMedium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026