Alosa caspia

Alosa caspia is a species of alosid fish, one of the species of shad (genus Alosa) endemic to the Caspian Sea basin.^[1]

Alosa caspia
Conservation status
Least Concern  (IUCN 3.1)[1]
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Clupeiformes
Family:	Alosidae
Genus:	Alosa
Species:	A. caspia
Binomial name
Alosa caspia (Eichwald, 1838)

FishBase treats separately three subspecies from the Caspian:^[2]

• Caspian shad, Alosa caspia caspia (Eichwald, 1838)
• Enzeli shad, Alosa caspia knipowitschi (Iljin, 1927)
• Astrabad shad, Alosa caspia persica (Iljin, 1927)

Previously the taxonomic circumscription and geographic range of A. caspia have been broader, encompassing also the Sea of Azov and Black Sea basins.^[2][3][4] Up to ten subspecies were recognised; these included forms now classified as Alosa tanaica (and its synonyms) and even the Balkan freshwater endemics Alosa macedonica and Alosa vistonica.^[3]