UK waters could see surge in shark numbers scientists say, as they seek out new habitats

The Sun

18-06-2025

BRITISH waters could soon see a surge in shark species as they seek out new habitats, scientists say.
These include increasing numbers of basking and spurdog sharks - which can grow up to 1.6 metres - and thornbacks, a type of stingray with spines.
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Scientists have mapped out how those at threat of extinction will migrate for a better chance of survival as sea temperatures rise.
The research - undertaken by the Centre for Environment, Fisheries and Aquaculture Science (Cefas) - showed native oysters will be amongst the biggest winners.
Experts say mobile species will cope best, but static creatures could struggle to adapt - with fears the sea pen could lose as much as 40 percent of their habitat by the end of the century.
The ocean quahog, a type of clam that can live more than 500 years, is also predicted to find it harder to adapt.
Bryony Townhill, marine scientist at Cefas, told BBC News: "As an island nation, we're hugely reliant on the sea for our food and for jobs.
"Any changes that we see in our seas are particularly impactful."
She added that movement of the 19 species could result in bigger catches for fishermen in coastal communities.
Professor John Pinnegar, director of the Cefas Marine Climate Change Centre, said the biggest surprise from the findings was the possibility of native oysters thriving.
"They've been declining and disappearing for 100 years - and yet the climate model suggests they should be doing fine and perhaps even thriving," he explained.
Prof Pinnegar said although there is potential for new habitats, the vulnerable species still need protecting from the likes of fishing equipment, disease and pollution.
Basking sharks are the second-largest living shark after the whale shark, and can grow up to 10 metres, or 32ft.
They are not, however, a threat to humans, and live on plankton.