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Manchester Evening News
Manchester Evening News
National
Andrew Forgrave & Ashlie Blakey

Monster 'bad boy' jellyfish washes up on beach at popular seaside village

A monster 'bad boy' jellyfish washed up on a beach at a popular seaside village in north Wales.

The huge fish was found on the foreshore at Fairbourne, in what was the latest in a series of giant jellyfish beachings in the county of Gwynedd, North Wales Live reports. It was brought in by the tide to the mouth of the Mawddach estuary across the water from Barmouth.

It was estimated to measure around one metre across, sparking people to label it a 'monster' and a 'bad boy'. One theory is that the jellyfish was lured inshore by the 'fishy' algal blooms recently reported along the coasts of Gwynedd and Ceredigion.

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In mid May another giant was found on the beach at Aberdyfi. With jellyfish season now firmly underway, scores of smaller ones have been washed up all along the Welsh coastline.

When a photo of the Fairbourne 'monster' was shared on social media, it prompted an outburst of startled exclamations. “Jeeeeeeze, size of that bad boy!!!!” said one woman.

“Jesus Christ!” one man said. Others went higher up the liturgical scale. “My God, that’s huge!” said a woman. A man added: “Oh my God, imagine if the kids saw that!”

Barmouth is popular tourism resort and many visitors return year after year. But the sight of giants on local beaches has prompted some to pause for thought.

“Don’t be dipping your toes in when u go,” warned one woman. Another agreed: “Oh my goodness!!! Nooooooo, that’s me even more nervous.” A man from the West Midlands has already seen enough. “Cancelled my holiday now, thanks,” he said, with tongue only slightly in cheek..

In reality, seaside towns along much of the Welsh coast are periodically invaded by jellyfish. Most are small and rarely cause any problems.

This large barrel jellyfish washed up in Aberdyfi in mid May (Steve Bowers/North Wales Live)

Like the giant washed in Aberdyfi a week or two earlier, the Fairbourne stranding was a barrel jellyfish. Common in the Irish Sea, they typically grow up to 40cm in diameter, about the size of dustbin lids – hence their other name, dustbin-lid jellyfish.

They have eight frilly arms, which contain small stinging tentacles and hundreds of little mouths. In deeper waters, they can reach 150cm, making them the largest jellyfish in British waters.

In May and June, they swarm in warmer coastal waters to feed on plankton. Often they wash up on beaches after underestimating tides and wave strengths.

The presence of large numbers of jellyfish in the seas attracts predators. A good jellyfish season is good news for leatherback turtles, the world’s largest sea turtle.

Occasionally, the turtles themselves wash up on the west Wales coast. In September 1988, the world’s largest leatherback washed up at Harlech, Gwynedd.

It was found by a local farmer who said it was “bigger than a cow and the shape of a VW beetle car”. Weighing 914 kilos (2,016lb), it’s now on display at National Museum Cardiff.

After Fairbourne’s super-sized visitor was found, some people wondered how beach cleaners might remove it. “Need a bigger boat,” said a woman, referring to Steven Spielberg’s Jaws catch-line. It is thought to have vanished on the next high tide.

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