HomeFish encyclopediaRay-finned fishesHerringsHerrings, shads and sardinesCaspian shad Caspian shad (Alosa caspia caspia) Scientific name: Alosa caspia caspia Eichwald, 1838 The Caspian shad (Alosa caspia caspia) is a freshwater fish of the family Clupeidae. Native range: Eurasia, Black Sea, Sea of Azov and Caspian Sea. BiologyDorsal spines (total): 0; Anal spines: 0. Body `shad-like', usually rather deep and compressed. Total gill rakers 50 to 180, long and thin, distinctly longer than filaments. Teeth poorly developed in jaws, sometimes barely detectable. A black spot posterior to gill opening and occasionally further black spots on flank in some cases.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameAlosa caspia caspiaFamilyClupeidae (Herrings, shads and sardines)OrderClupeiformes (Herrings)ClassActinopterygii (Ray-finned fishes)Maximum length32.0Common length20.0EnvironmentMarine; freshwater; brackish; pelagic-neritic; anadromousClimateTemperateDistributionEurasia: Black Sea, Sea of Azov and Caspian Sea.Threat to humansHarmlessUsesFisheries: highly commercialResilienceMedium, minimum population doubling time 1.4 - 4.4 years (tmax=7) SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.Last updated 27 September 2026