Our animals


Sterlet

Sterlet

Facts

LatinAcipenser ruthenus
Size125 cm
FoodSnails, mussels, worms and insects
HabitatRivers
IUCN

Vulnerable

Vulnerable. Major threats are overfishing, pollution and destruction of habitats.

LocationEastern Europe, Russia and Kazakhstan
Map

From the dinosaur age

Looking at the sterlet, you may be able to sense that it belongs to an ancient and unique fish species. The sterlet 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 sterlet uses its barbels and highly developed sense of smell to track down its prey.

Isinglass (gelatine) from sterlet

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