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Common Sturgeon


Common Sturgeon

The common sturgeon is effectively extinct as a breeding fish in UK waters — the last confirmed river capture was in 1993 on the River Tywi in Wales.

Any encounter today is an accidental one, usually a stray individual from reintroduction programmes on the Continent. Legally, every sturgeon caught in British waters must be offered to the Crown. This is a fish of conservation history, not a target species.

Scientific Name: Acipenser sturio

Also known as European sturgeon


Physical Characteristics:
  • Olive-brown above, white belly; no true scales — instead, five rows of bony plates (scutes) run the length of the body, giving it an armoured, prehistoric look.
  • Flattened, shovel-like snout with four barbels hanging beneath it, ahead of a small, toothless mouth on the underside — built for rooting along the bottom.
  • Cartilaginous skeleton (more like a shark than a bony fish) and an elongated upper tail lobe, both useful ID points if one comes to hand.
  • Can reach 3.5 m and exceed 300 kg; the British rod-caught record is a 388 lb fish foul-hooked on the River Towy in 1932.

What to know

Habitat Distribution

  • Native to England and possibly parts of Wales; present in Scottish waters for around 150 years but not considered truly native there.
  • An anadromous species — juveniles develop in freshwater rivers, then migrate to sea, spending most of adult life in inshore coastal waters before returning to rivers to spawn.
  • Historically recorded from Scotland south through the eastern and south-western British Isles and the Irish Sea; now functionally absent from UK rivers as a breeding population.
  • Spawns over clean, deep, well-oxygenated gravel runs in large rivers — habitat that has been severely reduced by weirs, dams and dredging across the UK.

Key Locations

  • River Tywi (Afon Tywi), Wales — site of the last officially recorded UK river capture, in 1993, and the 1932 British record fish.
  • Inshore coastal waters from Scotland to the south-west of England and the Irish Sea — the most likely zone for a chance encounter with a stray individual today.

Specific Spots

  • Bottom-dweller throughout its life; in estuaries and inshore coastal zones it works along the seabed, so deep channel margins and tidal reaches are where accidental encounters are most likely.
  • Historically, large river mainstems with unobstructed runs to the sea — the Tywi/Towy in Wales being the last documented UK river capture site.

Common Sturgeon FAQ

Answers from onWater's species guide.

How do you catch Common Sturgeon?

Targeting common sturgeon in the UK is not a realistic or legal pursuit, the species is functionally extinct in British rivers, and any accidental capture must be reported and the fish released immediately.

What do Common Sturgeon eat?

Feeds by rooting along the riverbed and seabed with its sensitive barbels, taking worms, molluscs, crustaceans and small bottom-dwelling invertebrates, it has no teeth and cannot take larger prey. Notably, sturgeon are understood not to feed actively once they enter freshwater to spawn.

Where do Common Sturgeon live?

Native to England and possibly parts of Wales; present in Scottish waters for around 150 years but not considered truly native there. An anadromous species, juveniles develop in freshwater rivers, then migrate to sea, spending most of adult life in inshore coastal waters before returning to rivers to spawn.

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