Critically EndangeredBeluga Sturgeon
Huso huso
14 countries9 parks1 dive site
Species group · Bony fish
WAnimals has 3 species of sturgeon, in the family Acipenseridae.
Ranges calculated from the profiles that record the figure, not from all 3.
Each one has its own full profile. This group does not replace them: it brings them together.
3 species in this group are in a threatened category according to the IUCN.
Recorded in 49 countries. The ones with the most species in the group:
It is the largest freshwater fish in the world. The biggest one ever caught weighed 1,571 kg and measured 7.2 m.
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It is one of the longest-lived vertebrates: it can live beyond a hundred years.
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Fishing has cut that longevity short. Today no individuals older than 56 years are found, because almost all are caught soon after reaching maturity.
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It eats molluscs, polychaetes, shrimp and small fish from the sea and river bed.
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The last confirmed natural spawning outside that basin was recorded in 1994.
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It migrates between the sea and Europe's rivers to spawn, and has bony external plates instead of scales.
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It is the largest freshwater fish in North America and can live beyond a hundred years.
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The females spawn only every two to five years, which makes populations very slow to recover.
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