Population dynamics The Garrison Dam National Fish Hatchery at Garrison Dam, North Dakota, is the largest walleye hatchery in the world. Although they are in high demand for fishing and consumption in North Dakota, elsewhere they are considered a nuisance. For that reason GDNFH is also researching hormonal population control to provide control options to other areas.
Population dynamics The Garrison Dam National Fish Hatchery at Garrison Dam, North Dakota, is the largest walleye hatchery in the world. Although they are in high demand for fishing and consumption in North Dakota, elsewhere they are considered a nuisance. For that reason GDNFH is also researching hormonal population control to provide control options to other areas.