[A] species known as peach blossom fish that have been spotted across North America … [t]he freshwater jellyfish are not considered dangerous to humans, and their small tentacles will likely not penetrate human skin, said the U.S. Geological Survey. People have reported the freshwater jellyfish in bodies of water in the Eldorado National Forest, but those sightings haven’t all been verified, she added. Indigenous to China, peach blossom fish are highly concentrated along the East Coast, according to a USGS map. The small animals have been reported in the American River and upper Cosumnes River, but none so far in the Eldorado National Forest, according to the USGS. Stumpy Meadows Reservoir is about 10 miles north of Pollock Pines.