Chordates •

Russian sturgeon

(Acipenser gueldenstaedtii)



The Russian sturgeon can grow to 210 cm (83 in) but a more normal size is 110 to 140 cm (43 to 55 in).It has a relatively short and rounded snout with three pairs of unfringed barbels closer to the tip of the snout that to the mouth.The dorsal fin has 27 to 48 soft rays and the anal fin has 16 to 35.The number of scales along the lateral linevaries from 21 to 50.This fish can be distinguish from the otherwise similar starry sturgeon by the shape of its snout,its barbels and scale arrangement.The upper surface is greyish-green,the lateral scales are pale and the belly white.The Russian sturgeon (Acipenser gueldenstaedtii),also known as the diamond sturgeon or Danube sturgeon,is a species of fish in the Acipenseridae family.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.

Taxonomic tree:

Kingdom: Animalia
Class: Actinopterygii
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