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(KSL News) Fish and wildlife experts say they have found exotic and invasive mussels in Lake Powell.
Biologists took water samples and say it turned up three individual larval quagga or zebra mussels: one in the main channel near Glen Canyon Dam and two in Wahweap Marina.
Biologists are now looking at more water samples. An expert on the mussels says even though they are in Lake Powell, it's unclear whether there is an established population or how the mussels will affect Lake Powell.
This exotic species can potentially devastate fish populations, cover boat bottoms and clog filters and pipes.
Boaters who have visited Lake Powell have to get a high-pressure, hot-water wash to avoid spreading any mussels.