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Dead jellyfish stings up to 150 off N.H. beach

Jellyfish.jpg

By Cat Viglienzoni - July 22, 2010

It wasn't sharks that wrecked havoc on a New Hampshire beach yesterday - it was a large dead jellyfish. Up to 150 people - most of them children - needed treatment after coming into contact with pieces of the tentacles.

Jellyfish tentacles do not deactivate when the creature dies, retaining its ability to sting for up to days afterward, scientists say.

Fire Lieutenant with the Rye Fire Department Charles Gallant said the jellyfish at Wallis Sands State Park was about the size of a trash can lid and weighed 45 to 50 pounds. He said the creature's tentacles extended up to 13 feet.

"While they were removing it, it broke apart, the tentacles did, and our understanding is that jellyfish tentacles will stay alive for three to four days after it had died, and that pieces of it were floating around in the water," he said.

The jellyfish had broken apart when a lifeguard tried to remove the carcass from the water earlier that day. He had spotted the creature 100 yards from shore and dragged it to shore with a pitchfork, which is when parts broke loose.

Gallant said when they got the dispatch in the early afternoon, they expected to help treat about 50 children. But by the time they arrived, the situation had escalated.

"When we got on scene, we found many more people than that in the building, who were being treated by the lifeguards on duty," Gallant said.

So many complained of itches and burns that the Rye fire department officials called in for reinforcements from five other nearby fire stations. Most of the children were treated with vinegar and baking soda, but five were transported to the hospital due to allergy concerns. They were later released.

The creature was identified as a lion's mane jellyfish, which are not usually seen this far south. Officials ordered everyone out of the water before finally bagging the jellyfish and placing it in the trash.

(Photo courtesy: Wikimedia Commons)