Bastard sturgeon

Straight Dick ( Acipenser nudiventris )

The Straight Dick ( Acipenser nudiventris ), also thick or smooth sturgeon is a fish species of the family of sturgeons.

Features

The coloring is different depending on location. Most of the back is ash-gray, reddish brown to dark blue. The belly and the bone shields behind the eyes are off-white. The number of blades is 12 to back 15, the side shields 60.

The head has a conical snout, the lower lip is split. The length of the relatively stocky fish is very different. Rarely, some two meters are long. The Straight Dick is to 50, exceptionally to 80 kilograms, on average, but only 8 to 10 kilograms.

Occurrence

The smooth thick felt in the southern part of the Caspian Sea and the Aral Sea, in the latter he is now extinct. Very rarely the kind in the Danube, as demonstrated in the Black Sea and the Sea of ​​Azov.

Way of life

He is a migratory fish, which rises in the rivers Volga, Ural and Kura in autumn and spring. Autumn hikers overwinter in the river in special holes in the ground. The spawning season is from March to May Its diet consists mainly of molluscs and particularly the Caspian Sea also from fish.

Swell

• Gunter Steinbach (eds.): Freshwater fish in European waters. Mosaic, Munich 1984, ISBN 3-576-10564-6.
• Chocoholics Werner, Dieter Vogt: The freshwater fishes of Europe to the Urals and the Caspian Sea. 2nd edition. Parey, Hamburg 1979, ISBN 3-490-18818-7.