Our animals

Danube sturgeon

Danube sturgeon


LatinAcipenser gueldenstaedtii
Size236 cm
FoodFish and bottom-dwelling animals
HabitatRivers, large streams and along the coasts

Critically endangered

Critically endangered in nature. Caviare, which is the sturgeon's egg, is highly sought-after. Ruthless exploitation and illegal trade now threaten the Danube sturgeon with extinction.

LocationParts of Eastern Europe and Western Asia

From the dinosaur age

Looking at the Danube sturgeon, you may be able to sense that it belongs to an ancient and unique fish species. The Danube sturgeon lived during the dinosaur age 200 million years ago and it hasn't changed a bit since then.

Feels its way to its prey

The mouth is located on the underside of its narrow, sharp head. In front of the mouth are 4 barbels. The Danube sturgeon uses its barbels and highly developed sense of smell to track down its prey.

Isinglass (gelatine) from sturgeon

Isinglass (gelatine) used to be made from the innermost membrane of the Danube sturgeon's swim bladder. The word isinglass is from the Dutch: huizenblaas - huizen, a kind of sturgeon; blaas, a bladder.

Sturgeon in Denmark

The Danube sturgeon is not native to Denmark, but you can encounter it in Danish lakes and along the coasts. These are probably fish that have escaped from fish farms and put-and-take lakes.