The walleye is the most sought-after fish in Minnesota. Its thick, white fillets, handsome shape and coloring, and elusive nature make it the ultimate prize among anglers. Each year, anglers in Minnesota keep roughly 3.5 million walleyes totaling 4 million pounds. The average walleye caught and kept is about 14 inches long and weighs slightly more than 1 pound. The walleye is named for its pearlescent eye, which is caused by a reflective layer of pigment, called the tapetum lucidum, that helps it see and feed at night or in murky water.