There are saugers in the Mississippi River. I fish the Kaskaskia River and also Carlyle lake often and they are stocked in both of those bodies of water. A sauger can adapt and live in more shallow depths than a walleye, that is why they are in our bodies of water since the avg. depth of the lake is under 20 feet deep. Walleye need deeper water, or that is what the fish biologist told most of us that fish Carlyle Lake. They are a smaller species largest being about 5-6 lb, but they eat just as good as a walleye, probably even better.
Good Day to all