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).
1 At 1,637m, it is the deepest freshwater lake in the world; the average depth is 758m. 2  It is 636km long and 81km wide; the surface area is 31,494km2.  The lake is estimated to be 25 million years old, making it one of the most ancient lakes in geological history.