Some of the species found here include the walrus, polar bear, beluga , narwhal, bearded seals, harp seal, harbour seal, ringed seal, bowhead whale, ivory gull, and some migratory birds.
The beluga or white whale is a medium-sized odontocete, widely distributed throughout Arctic waters.
Caviar in tins and jars range from salmon's red (ripe and briny) at 99 roubles for a 113-gram can to the luscious, silvery-grey beluga at 500 roubles.
Most beluga sturgeon were historically found in the Caspian Sea.
The Antarctic lacks small resident toothed whales like the beluga and the narwhal of the Arctic.
Weary fishermen stand waist deep in chilly water and strain every muscle, fighting to subdue the gigantic beluga , great white sturgeon, which they have netted in the muddy Ural river.
The blue whale, the beluga and the walrus all have this protective layer of fat which serves as insulation.
The beluga sturgeon - the biggest species - has been known to grow up to five metres in length and weigh as much as a ton.
Unregulated overfishing, loss of spawning habitat, and poaching to supply the black market beluga caviar trade have contributed to a notable decrease in the wild beluga sturgeon population.
Arctic waters are renowned for such marine mammals as bowhead and beluga whales and ringed, spotted and bearded seals.