Russian Sturgeon Acipenser Gueldenstaedtii Diamond Sturgeon Or Danube Sturgeon, Is A Species Of Fish In The Family Acipenseridae Stock Photo

The Russian sturgeon feeds on crustaceans, molluscs and small fishes such as gobies, anchovies and sprats. It is solitary when in the sea but becomes gregarious as it moves up-river in April, May and June to spawn 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 line varies 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.