Walleye, an iconic native fish species in Wisconsin, the upper Midwest and Canada, are in decline in northern Wisconsin lakes, according to a new study. It now takes 1.5 times longer to produce the same amount of walleye as it did in 1990.
Walleye, an iconic native fish species in Wisconsin, the upper Midwest and Canada, are in decline in northern Wisconsin lakes, according to a new study. It now takes 1.5 times longer to produce the same amount of walleye as it did in 1990.