Get ready for an exciting journey into the world of Michigan's aquatic conservation efforts! A staggering 19.5 million fish were introduced into Michigan's waters in 2025, a move that promises to revolutionize angling opportunities for years ahead. But here's where it gets controversial...
Most of these fish were released during the spring and summer months, with an additional 648,000 fingerlings (young fish) added in the fall. This included popular species like walleye, salmon, trout, and muskellunge, distributed across 76 locations statewide.
"It was an exceptional fall stocking season, enhancing fishing prospects across Michigan," said Aaron Switzer, the DNR's fish production manager. "Combined with our spring and summer efforts, we've stocked nearly 19.5 million fish in Michigan's waters in 2025 alone!"
But why fall? Fish stocked during this season require less time and resources to rear in hatcheries. Typically, fish are raised in Michigan's hatcheries for periods ranging from one month to 1.5 years before being released.
And this is the part most people miss: fall-stocked fish are often younger and more adaptable to new environments, giving them a better chance of thriving in their new homes.
The 2025 fall stocking included a diverse range of species, such as Atlantic salmon, brook trout, brown trout, lake trout, rainbow trout (Eagle Lake and steelhead strains), walleye, and muskellunge. Together, these fish weighed an impressive 8.6 tons!
Here's a breakdown of the fall hatchery stats:
- Marquette State Fish Hatchery (near Marquette) stocked 27,915 fall fingerlings and 250 adult brook trout, weighing a combined 3,022 pounds. These fish were distributed to 27 locations in the Upper Peninsula.
- Oden State Fish Hatchery (near Petoskey) stocked 140,366 fall fingerling rainbow trout, weighing 7,508 pounds, and distributed them to four locations across both peninsulas.
- Thompson State Fish Hatchery (near Manistique) stocked 3,008 Great Lakes strain muskellunge, weighing 304 pounds, in Lake Hudson and Thornapple Lake. They also stocked 329,085 fall fingerling steelhead, weighing a total of 2,413 pounds, in six locations.
- Wolf Lake State Fish Hatchery (west of Kalamazoo) stocked 64,532 fall fingerling steelhead, weighing a combined 917 pounds, in Crystal Lake.
- Harrietta State Fish Hatchery (near Cadillac) stocked 17,548 fall fingerling brown trout and 24,520 fall fingerling rainbow trout, with a combined weight of 1,573 pounds, in four locations.
The DNR's fisheries management units also stocked fall fingerling walleye:
- Southern Lake Michigan Management Unit stocked 33,580 Muskegon strain fall fingerlings, weighing a total of 1,373 pounds, in 20 locations.
- Central Lake Michigan Management Unit stocked 2,507 Muskegon strain fall fingerlings, weighing 160 pounds in total, in three locations.
- Northern Lake Michigan Management Unit stocked Little Bay de Noc with 5,211 fall fingerlings (Little Bay de Noc strain), weighing a combined 88 pounds, in five locations. Notably, 2,815 of these walleye fingerlings were raised in a cooperative partner pond tended by the Bay De Noc Great Lakes Sportfishermen.
The DNR invites visitors to its state fish hatcheries and interpretive centers to witness the fish rearing process and learn more about Michigan's aquatic ecosystems. For more details, visit the DNR hatcheries page.
To discover if any fish were stocked in your favorite fishing spots, check out the DNR's fish stocking database.
So, what do you think about these massive fish stocking efforts? Do you believe it's a sustainable practice, or does it raise concerns about natural fish populations? We'd love to hear your thoughts in the comments below!
