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The European sea sturgeon (Acipenser sturio), also known as the baltic sturgeon or common sturgeon, is a species of sturgeon found on most coasts of Europe. It is currently a critically endangered species.
This sturgeon typically measures from 1 to 2 meters in length, though some can reach up to 3.5 meters. Average weight is roughly 150 kg, although they can weigh up to 315 kg. They have a late sexual maturity (12 to 14 years for the males and 16 to 18 years for the females) and can live to 40 years of age.
They are found on the coasts of Europe, except the Black Sea and have even been known to cross the Atlantic Ocean to the coasts of North America. Like many other sturgeons, they spawn in the rivers off the coast.
Also like other sturgeons, they eat shells and crustaceans which they find with their barbels.
At the beginning of the 19th century, these fish were used extensively to produce caviar, but have been a protected species in Europe since 1982.