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Sturgeon

Definition:

Sturgeons are large primitive fishes of the Northern Hemisphere, used as a food fish and valued as a source of caviar.

Some species live in saltwater, some ascend rivers to spawn, and some are found in landlocked waters.

Sturgeons range from 2.5 to 3.5 m in length and can weigh up to 900 kg.

They are bottom-feeders. With their projecting wedgeshaped snout they stir up the soft bottom, and by means of their sensitive barbels detect shells, crustaceans and small fishes, on which they feed. Having no teeth, they are unable to seize larger prey.

Source: GreenFacts

More:
Siberian sturgeon (Acipenser baeri) Siberian sturgeon

Source: Akwa Foto Acipenser baeri 

Related words:

Fishery

To read about this term in context:

GreenFacts Summary on Fisheries Latest data:

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