Sunday, 12 May 2013

Beluga Sturgeon

The Beluga Sturgeon (Huso huso) is the biggest freshwater fish in the world. The largest Beluga ever caught weighed 1,571 kg and was 7.2 m long. The Beluga is extremely long lived and does not reach maturity until at least 15 years of age. Beluga Sturgeons are listed as Critically Endangered.

1-beluga-sturgeon

Facts and Figures

  • Beluga sturgeons are the biggest freshwater fish in the world. The largest Beluga ever caught weighed 1,571 kg and was 7.2 m long.
  • The Beluga migrates further upstream to spawn than any other sturgeon. However, this migration has been interrupted – as for all other sturgeons – by the Iron Gates dams.
  • Though mainly eating fish, the larger individuals can feed even on aquatic birds. The Belugas are the only true predators among Danube sturgeons.
  • 11th century chronicles mention Huso huso as providing important rations for troops marching along the Upper Danube in Austria.
  • The Beluga is extremely long lived. Individuals can reach more than 100 years in age and can still be caught in areas where their spawning sites have been cut off.
  • 60% decline of Beluga catch in 3 years according to data from Romania.

The Giant Sturgeon

Beluga Sturgeon (huso huso)
Beluga Sturgeon (Huso huso)
© WWF 2012



Full Article:  Danube-sturgeon

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