Exotic species of sharks may soon be in UK waters

Environment: Caterpillar makes return Nature: Native varieties are in decline, however

New types of sharks could be heading to UK waters as a result of warming seas, experts have said.

A new study has revealed 10 species of sharks found in warmer parts of the world, such as hammerheads and blacktip sharks, may be swimming in British seas within 30 years as the climate changes.

And a new “shark map” reveals the places where the fish are already found in UK waters.

It names Cornwall as the country’s shark capital, with at least 20 species found off the coast, followed by the Scilly Isles and Devon.

An estimated 10 million small and 100,000 larger sharks from 40 different species are found in the seas around the UK.

More species could come from places such as the Mediterranean and the coast of Africa as seas become warmer due to climate change, according to the research commissioned to mark Nat Geo Wild’s weeklong “Sharkfest” of TV programming this week.

However, those already found in UK waters, such as thresher, basking and nursehound sharks, are in decline due to overfishing and other problems.

They need protection, according to Dr Ken Collins, from Southampton University, based at the National Oceanography Centre and former administrator of the UK shark tagging programme.

Dr Collins, who produced the research, said: “While the potential number of shark species around the UK may increase in the next few decades, the overall number of sharks, especially the larger ones, will fall as a result of overfishing, plastic waste and climate change.

“It’s really important we work together to prevent a premature extinction of these wonderful creatures.”

He also said he saw “no reason” why there should not be great white sharks in UK waters, as they were found in colder waters off South Africa and favoured seals – found in Cornwall – to eat.

However, numbers of great whites, hit by an image problem since the movie Jaws, are in decline worldwide, he added.

“It’s important we work together to prevent extinction”