They can be used to jig vertically from a boat in deeper water, fished under a bobber for ... catfish and trout on jigs (they are one of my go-to lures for trout fishing in alpine lakes).

Often a fish will hit when it sees its prey escaping. The author convinced this lake trout to bite by quickly cranking the ice jig away from the fish. / Joe Shead A cloud of mud in clear water ...

Sometimes, when you can’t see the fish, your spring bobber might bend or the line twitch, but the fish has only grabbed the jig head instead ... Ice Fishing for Stocked Trout: Expert Tips ...