Meanwhile, Up North
Not surprisingly, Northern crappies spend much of their time in deep water during winter. In lakes that are frozen over, the water temperature just below the ice hovers in the low 30s. Twenty to 30 feet down, however, the water might be as warm as 39 degrees. Minnesota fisheries biologist Mike McInerny, who is also a crappie angler, says the fish do not seem to be structure-oriented and suspend in open water while waiting out winter. Then crappies begin moving shallow when water temperatures warm.