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Beachgoers warned of venomous fish with ‘excruciating’ sting

Marine conservation officer Matt Slater warns that warming seas are causing venomous weever fish to arrive in UK shallows earlier than usual. The species is appearing in large numbers along the coast.
Six years of annual marine heat waves are transforming UK ecosystems by attracting warm-water species to the coast. Rising temperatures have created conditions similar to the Bay of Biscay, France, a region with regularly high temperatures.
Victims describe the weever fish sting as "excruciating." Experts advise submerging the affected area in hot water for 10 to 15 minutes to neutralize the protein-based poison.
Thousands of beachgoers step on these fish annually, so Slater recommends wearing old shoes or wetsuit boots in shallow, rocky areas. Lifeguards monitor for rare allergic reactions, though serious complications remain uncommon.
Beyond weever fish, shifting sea temperatures have brought bluefin tuna and massive shoals of spider crabs to Cornwall. Slater encourages the public to report marine life sightings to help the Cornwall Wildlife Trust track ecosystem changes.

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