By 1808Delaware
The quiet work of restoration took a visible leap forward this fall as lake sturgeon, a species long absent from most Ohio waterways, were released into the Cuyahoga, Sandusky, Scioto, and Maumee rivers. The Ohio Department of Natural Resources says these 6- to 8-inch juveniles mark the beginning of a new chapter for a fish that once ruled the deeper channels of Lake Erie and the Ohio River.
A 150-Year Absence
For generations, lake sturgeon were a routine part of Ohio’s aquatic life. That changed as dams cut off spawning routes and harvest went unchecked. By the early 20th century, the state had lost every known spawning population. It has taken decades of water quality gains, habitat restoration, and dam removals to make reintroduction possible.
Now, biologists believe the Cuyahoga, Maumee, Sandusky, and Scioto rivers again offer the gravel beds and flowing water that sturgeon need to reproduce. The Scioto, which moves straight through Delaware County, is one of the newest additions to the recovery effort.
A Regional Team Effort
The U.S. Fish and Wildlife Service and the Toledo Zoo raised this year’s young sturgeon for release. October brought one of the more public moments in the project: two thousand fish entering the Cuyahoga River at an event that drew a large crowd. The annual Sturgeon Fest in Toledo added another 3,000 to the Maumee. Seven hundred fifty went to the Sandusky River.
November’s work focused on the Scioto, where thirty surgically tagged juveniles entered the water. The tags allow Ohio State University biologists to follow their movement and survival in real time, something that hasn’t been possible in past reintroductions.
Life at the Bottom
Lake sturgeon feed along riverbeds, searching for invertebrates and small fish. They can grow to six or eight feet over a lifespan that may reach a century. That slow pace of life comes with a catch: females often need up to 25 years to mature, and they don’t spawn every year. Real recovery, even under the best conditions, will take patience.
Where They’ll Go Next
Biologists expect most sturgeon from the Cuyahoga, Maumee, and Sandusky releases to drift toward Lake Erie. The Scioto’s fish, by contrast, will likely move south toward the Ohio River. The hope is simple but ambitious: once they reach adulthood, at least some of these sturgeon will return to the same rivers to spawn.
Early signs offer reason for optimism. Since annual Maumee River releases began in 2018, surveys have found more sturgeon in Lake Erie. It’s the kind of evidence scientists look for when deciding whether to expand these efforts.
Continued Stocking
ODNR plans to continue stocking all four rivers in the years ahead. The long-term goal is a self-sustaining population in both the Lake Erie and Ohio River watersheds, something Ohio hasn’t seen since the 1800s.
People who fish or spend time on the water may eventually encounter one. Because lake sturgeon remain protected in Ohio, ODNR asks anyone who catches or finds one to report it at wildohio.gov and release it carefully.
If the project succeeds, future Ohioans could see a species once thought lost return to its full size and strength. In rivers that have been reshaped and restored over decades, that possibility feels closer than it has in a very long time.
