Walleye or yellow pickerel or pickerel (Sander vitreus, formerly Stizostedion vitreum)'s a freshwater perciform fish native to most of Canada and to the northern United States. It's a North American close relative of the European pikeperch. The walleye's sometimes also called the yellow walleye to distinguish it from the Blue walleye, which's now extinct. In some parts of its range, the walleye's also known as the colored pike, yellow pike or pickerel (esp. in English-speaking Canada), althoug… (More on Walleye)