Seems like you think people catch lake sturgeon to eat them. This is a very rare thing these days. Sturgeon fishing is almost always catch and release. This doesn't mean there aren't any fish killed. Any catch and release is quite stressful and might kill one. But people aren't just eating them and sturgeon are quite robust. And there's certainly no commercial fishing for them like the issues with ocean/marine ecosystems you're describing.
At least in Wisconsin rivers/lakes you cannot legally keep any sturgeon with the normal fishing license. You have to pay an extra fee to keep 1 (per season). And according to the statewide Wisconsin statistics only 5 sturgeon were harvested from the St. Croix River in 2025, and a total of 58 were harvested across the entire state.
Years again I was gifted a sturgeon fishing trip on the Fraser and I still feel bad thinking about it. In hindsight knowing how much we stressed and probably harmed that animal. What a cruel way to entertain ourselves.
At least in Wisconsin rivers/lakes you cannot legally keep any sturgeon with the normal fishing license. You have to pay an extra fee to keep 1 (per season). And according to the statewide Wisconsin statistics only 5 sturgeon were harvested from the St. Croix River in 2025, and a total of 58 were harvested across the entire state.