Wisconsin has 1.4 million licensed anglers with about one-third reporting they ice fish.
Ice fishing trails only sledding, snowmobiling and ice skating as the most popular of outdoor winter activities.
Ice anglers catch 14 million fish during the ice fishing season.
Nearly half of all fish caught during ice fishing season are kept, compared to about one-third during the open water season.
The top species caught are 11.7 million panfish, 866,000 northern pike and 750,000 walleyes.