Cold-stunned turtles washing ashore (via Herp Digest)

 The cold snap plaguing large areas of the Tar Heel state is causing problems for sea turtles, who have begun washing up on shore in large numbers after being stunned by quickly-dropping water temperatures.

As of Thursday morning, 19 marine reptiles - three loggerheads, 16 green turtles - had been found on regional beaches, mostly in the Cape Lookout area.

Twelve of the green turtles died Wednesday night, but Jean Beasley, director of the Karen Beasley Sea Turtle Rescue and Rehabilitation Center in Topsail Beach, said the rest of the group was showing some signs of life.

"I think within 72 hours we should have a pretty good idea," Beasley said late Wednesday. "It's going to take us a while to warm these turtles up."

Because reptiles, including turtles, can't regulate their own body heat, they're susceptible to sudden, drastic shifts in water temperature. 

"If it's a gradual lowering of temperature, they can survive and do pretty well," Beasley said. "But if they've been at 78 degrees and it drops into the lower 60s, they are probably going to stun."

Cold-stunned turtles appear extremely lethargic and in some cases will stop moving entirely as more of their blood supply diverts to the core of their bodies, a condition Beasley said is a relatively common occurrence in North Carolina during the winter months.

"Last year, we had up over 150, and we had quite a few that died," she said. "The longer they're exposed to the severe cold, the bigger impact it's going to have on their basic systems, their core body and their vital organs, so the sooner we can get them the greater chance they have."

To recover from a cold stun, sea turtles must be warmed gradually. Raising their core temperature too quickly can result in a reverse shock, which can kill them, Beasley said. And though the extreme cold weather has passed, turtles may continue to wash up on shore in the coming days.

"We'll still have the hangers-on. Those that are under the docks will be showing up on shore, but hopefully we're not going to have another major event," Beasley said.

If you find a cold-stunned turtle on the beach or in shallow water, call the Topsail Beach facility at (910) 470-2800 or (910) 470-2880, or the Sea Turtle Stranding and Salvage Network at (252) 241-7367.

If the turtle is small enough to be moved, Beasley recommends placing it in a garage or carport and covering it with a towel.

"Just keep them out of the weather, but do not start warming them up," she said. "As soon as those numbers are called, we'll have somebody out to get the turtles."