<Li> S. v. vitreus </Li> <Li> S. v. glaucus (extinct) </Li> <P> Walleye (Sander vitreus, synonym Stizostedion vitreum) is a freshwater perciform fish native to most of Canada and to the Northern United States . It is a North American close relative of the European Zander, also known as the pikeperch . The walleye is sometimes called the yellow walleye to distinguish it from the blue walleye, which is a subspecies that was once found in the southern Ontario and Quebec regions, but are now presumed extinct . However, recent genetic analysis of a preserved (frozen)' blue walleye' sample suggests that the blue and yellow walleye were simply phenotypes within the same species and do not merit separate taxonomic classification . </P> <P> In parts of its range in English - speaking Canada, the walleye is known as a pickerel, even though the fish is not related to the true pickerels, which are a member of the family Esocidae . </P>

This popular species of sport fish is also known as yellow pike