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The fire worm Redpromar
Increasing numbers of fireworms pose a new threat on Spanish beaches
Nature

Increasing numbers of fireworms pose a new threat on Spanish beaches

This species can be a danger to humans because of its ability to cause painful skin burns

Juan Soto

Malaga

Wednesday, 28 August 2024, 17:20

Beachgoers in Spain are facing a new threat this year as some stretches of sand are becoming rife with the Hermodice carunculata - better known as the fireworm - and bathers are being warned to stay away from them.

The species, which can be a danger to humans due to its ability to cause painful skin burns, has been spotted on beaches in the Canary Islands, as confirmed by the local marine environment observation network (Redpromar).

According to eltiempo.es, the growing numbers of the fireworm have been particularly striking in the town of Arucas, where posters have even been put up at beaches warning people of the presence of this dangerous invertebrate.

It got its name, fireworm, due to the burning sensation it causes when it comes into contact with human skin. They also threaten marine ecosystems by devouring corals, anemones and small crustaceans, putting local biodiversity at risk.

The most striking feature of this worm is its dorsal bristles, which have a white or translucent sheen and are extremely sharp. These bristles act as a natural defence mechanism against predators.

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surinenglish Increasing numbers of fireworms pose a new threat on Spanish beaches