Lake Superior other Great Lakes fish, populations have also been affected by the accidental or intentional introduction of foreign species such as the sea lamprey and Eurasian ruffe. Accidental introductions have occurred in part by the removal of natural barriers to navigation between the Great Lakes. Overfishing has also been a factor in the decline of fish populations. Lake Superior Lake Superior (; ), the largest of the Great Lakes of North America, is also the world's largest freshwater lake by surface area, and the third largest freshwater lake by volume. The lake is shared by the Canadian province of Ontario to
Lake Sebring Lake Sebring Lake Sebring is a natural freshwater lake in Highlands County, Florida, and located north of Sebring, Florida, and Lake Jackson. The lake is somewhat oval shaped and has a surface area. The lake is named for Sebring's developer, George Sebring. A public boat ramp, on the lake's southwest, is just off Memorial Drive. Canals connect the lake to Little Red Water Lake, to the northeast, and to Lake Jackson, to the south. Canals indirectly connect a number of area lakes to Lake Sebring. Fishing is allowed. The lake has crappie and two types of catfish. No public swimming