Nunns Creek Fish Hatchery is an ongoing effort to strengthen and improve the Great Lakes fishery resource. Nunns Creek raises walleye, salmon and other species to stock Great Lakes waters. Since it opened in 1989, the hatchery has served as the center for monitoring and management of salmon harvested by tribal commercial fishermen. CORA tribes have helped to reestablish lake trout in the upper Great Lakes, and have been especially successful in Lake Superior.

Each CORA tribe has a biological services program that cooperates with ITFAP, Michigan DNR, and federal and binational agencies and governments to manage and maintain Great Lakes fish stocks.

All biological agencies on the Great Lakes work toward sea lamprey eradication. Recent examples of other cooperative efforts include:

Tribal biologists are responsible for coordinating activities and research that evaluate Great Lakes fish stocks and maintain or improve fishery habitat. Annual projects conducted by these programs include commercial harvest monitoring, lake trout and walleye population assessment, whitefish recruitment, forage fish surveys, and water quality monitoring. ITFAP maintains a commercial harvest database, conducts fish contaminant sampling, and stocks fish in treaty waters.

Tribal biologists work throughout the Great Lakes but specialize in their area of the treaty fishery. Grand Traverse Band, Little Traverse Bay Band and Little River Band are located on Lake Michigan's east coast, and Bay Mills on Lake Superior’s Whitefish Bay. Sault Tribe reservations span seven counties in the eastern Upper Peninsula from Munising to St. Ignace. Tribal biological staff and ITFAP participate in many interagency fishery and environmental committees, task forces, commissions and advisory teams on a state, national and international level. Tribal biological staff have been members of or have actively participated in all the Lake Committees and their Technical Committees, the Great Lakes Fishery Commission, the Integrated Management of Sea Lamprey, the Great Lakes Fish Health Committee, the Council of Great Lakes Fishery Agencies, the International Joint Commission’s Lake Michigan Lakewide Management Plan, St. Marys Remedial Action Plan, Binational Program for Lake Superior, Binational Superior Work Group, Great Lakes Council of Governors, Fish Consumption Advisory Task Force, Great Lakes Panel on Exotic Species, Great Lakes Water Quality Guidance, Great Lakes United, Michigan Aquaculture Advisory Committee, the Technical Fisheries Review Committee and the Technical Fishery Committee.

Tribal biologists have given presentations at many environmental and fishery management functions, from a local Sierra Club to the Native American Fish and Wildlife Society. They have contributed or served as editors to such publications as the Lake Trout Rehabilitation Guide; State of the Lake Report; and Fish Community Objectives for Lake Superior.