Russian sturgeon

Russian sturgeon
CITES Appendix II (CITES)
Scientific classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Acipenseriformes
Family: Acipenseridae
Genus: Huso
Species:
H. gueldenstaedtii
Binomial name
Huso gueldenstaedtii
Synonyms
  • Acipenser pygmaeus Reisinger 1830 non – Pallas 1814
  • Acipenser aculeatus Lovetsky 1834
  • Acipenser medius Heckel 1836
  • Acipenser tueckus Heckel 1836
  • Acipenser macrophthalmus Heckel 1836
  • Acipenser brevirostris Heckel 1836 non – Lesueur 1818
  • Acipenser gueldenstaedtii var. scobar Antipa 1909
  • Acipenser gueldenstaedti scaber Antipa 1909
  • Acipenser gueldenstaedti var. golis Antipa 1909
  • Acipenser gueldenstaedti var. longirostris Antipa 1909
  • Acipenser gueldenstaedti var. acutirostris Antipa 1909 non – Ayres 1854
  • Acipenser gueldenstaedtii var. colchicus Marti 1940
  • Acipenser colchicus (Marti 1940)
  • Acipenser gueldenstaedtii colchicus (Marti 1940)
  • Acipenser gueldenstaedti var. tanaica Marti 1940
  • Acipenser gueldenstaedti colchicus n. danubicus Movchan 1967
  • Acipenser gueldenstaedti persicus n. kurensis Belyaeff 1932

The Russian sturgeon (Huso gueldenstaedtii), also known as the diamond sturgeon or Danube sturgeon, is a species of fish in the family Acipenseridae. It is found in Azerbaijan, Bulgaria, Georgia, Iran, Kazakhstan, Romania, Russia, Turkey, Turkmenistan, and Ukraine. It is also found in the Caspian Sea. This fish can grow up to about 235 cm (93 in) and weigh 115 kg (254 lb). Russian sturgeon mature and reproduce slowly, making them highly vulnerable to fishing. It is distinguished from other Acipenser species by its short snout with a rounded tip as well as its lower lip which is interrupted at its center.

Prior to 2025, it was placed in the genus Acipenser, but this placement was found to be paraphyletic, and it is more accurately placed in the genus Huso.

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