LANSING, Mich. (AP) — A mission to return the Arctic grayling to Michigan waters is nearing a milestone.

Juvenile grayling are scheduled to arrive soon at the Oden State Fish Hatchery in Emmet County, where an ultraviolet water disinfection system recently was installed.

RELATED: More than 460K walleye fingerlings stocked in Michigan bay

RELATED: Butterfly vs. Dragonfly: Competing bugs battle for state insect title

Fish production manager Ed Eisch of the Department of Natural Resources says the system will prevent fish already in the area from being infected by viruses or bacteria that the newly arrived grayling might bring along.

They were collected as eggs in Alaska and have been kept at Michigan State University.

The juvenile fish will be reared in isolation at Oden. Once cleared by health testing, they'll be transferred to Marquette State Fish Hatchery to continue maturing.

Grayling are native to Michigan but died out because of logging and overfishing.

►Make it easy to keep up to date with more stories like this. Download the 13 ON YOUR SIDE app now.

Have a news tip? Email news@13onyourside.com, visit our Facebook page or Twitter.