One of the best know North American sturgeon, it is also called the red or rock sturgeon. Found in lakes, streams and the Great Lakes from the St. Lawrence Seaway to the Mississippi River. The lake sturgeon can reach a length upwards of 6 feet and weigh over 200 pounds. Female lake sturgeon may produce over 10 pounds, or 500,000 eggs, at a time. Growth is slow and maturity may take 20 years