CRCritically EndangeredPartial review

European Sturgeon

Acipenser sturio

At a glance

IUCN category
CR · Critically Endangered
Animal group
Fish
Population trend
Decreasing
Last verified

Conservation overview

The European sturgeon (Atlantic sturgeon) is a large, ancient migratory fish once widespread across Europe. It is assessed as Critically Endangered, reduced to a small remnant.

It depends on restocking from captive breeding to survive.

Range & habitat

Once across European coasts and rivers; now reduced to a remnant population centred on France.

Major threats

Threats below are drawn from the authoritative sources listed on this page. For the current, complete assessment, see the IUCN Red List.

  • Dams blocking spawning migrations
  • Past overfishing for caviar
  • Pollution and habitat loss

Why it matters

A once-widespread European river giant now clinging on in a single basin, the European sturgeon is a flagship for restoring connected, clean European rivers.

Sources

Sources for European Sturgeon

Frequently Asked Questions

Why did the European sturgeon collapse across Europe?
Published assessments cite dams blocking the long river migrations it needs to spawn, past overfishing for caviar, and pollution and habitat loss, which reduced it to a small remnant population.
Is the European sturgeon being helped?
Yes — it depends heavily on restocking from captive breeding, alongside efforts to restore river access and water quality. See the IUCN Red List.

Last updated: