The Michigan Department of Natural Resources is gathering eggs from Great Lakes muskellunge in the Detroit River and Lake St. Clair this spring. They will be raised at the DNR's Wolf Lake State Fish Hatchery in Mattawan.
The DNR began collecting the eggs in 2011 to boost the fish's numbers.
Last year, 1.1 million eggs were taken from the Detroit River. They produced more than 28,000 fall fingerlings for 18 inland lakes in Michigan, two of which will serve as broodstock lakes for future egg collections.
An additional 3,200 fish were transferred to Wisconsin for release in Green Bay.
Crews use trap nets in Lake St. Clair and electro-fishing gear in the Detroit River to gather fish eggs.