Scientists dismiss likelihood of species
arriving in Britain but bluefin tuna are on the rise
Sun 12 Aug 2018 12.36 BSTLast
modified on Sun 12 Aug 2018 19.30 BST
Britain’s westerly waters are experiencing a
bumper season for sightings of bluefin tuna, while visitors to Cornwall have
been thrilled by the unusual sighting of a
blue shark swimming in St Ives harbour.
But anyone hoping for sightings of great
white sharks in British waters are likely to be disappointed, despite a spate
of scare stories that began after a researcher at the University of
Southampton predicted
that 10 shark species new to the UK could reach British waters by 2050.
Dr Ken Collins made the prediction as part of a report to promote a TV
channel’s shark series.
Earlier this year, scientists published
evidence that tiger sharks off the coast of eastern Australia were most
abundant in sea temperatures of 22C (72F), with less
activity at higher and lower temperatures. Collins looked at other recent
studies to compile a list of 10 possible new arrivals, including the great
hammerhead, blacktip and bigeye thresher – but not the great white.
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