An interesting and very unique annual local event is underway here in northeastern Wisconsin - as of 06:30 today (Saturday, 2010-02-13), the annual Lake Winnebago lake sturgeon season is under way.
Lake Winnebago and its upriver tributaries support a native sturgeon population that is large and healthy enough to support an annual open season. This ancient species of fish can grow as large and heavy as average people, live as long or longer and are taken by spear through holes cut in the ice. Spearers sit in darkened shacks set over the holes and take them when they swim by. Bag limit is one for the season and the season lasts for two weeks or until a preset harvest quota is met (IIRC, last year's season lasted eight days).
This is very popular among the local blue-collar crowd and an important part of the Appleton to Fond du Lac area's culture. An example, each street name sign in the Village of Stockbridge, WI (located on the east shore of Lake Winnebago) shows a sturgeon next the the street's name.