First off, since 2000, catfish and tilapia rank as two of the most popular fish consumed in the United States thanks mainly to their taste and relatively low expense. And both contain heart-healthy omega-3 fatty acids.
Elevations and depths of the Great Lakes are shown by a profile in figure 41.6. Superior has the greatest depth, 1330 ft (370m); Michigan, Huron, and Ontario are of moderate depths, 800 to 900 ft (240 to 275 m); while by comparison Erie is very shallow, 200 ft (60 m).
Lake Superior (Figure 4) is the largest, deepest and coldest of all the Great Lakes. At 31,700 square miles (The Great Lakes, 1995), Lake Superior is the largest freshwater lake in the world by area.