An apparatus for detecting and signaling a disturbance of fishing gear while ice fishing may include an elongated base for positioning above an ice fishing hole, with a channel having opposing sides being located on the base for receiving a portion of the bobber, and a disturbance detecting assembly for detecting a disturbance of the fishing gear when a fish engages with the fishing gear. The detecting assembly may comprise a movable flap for releasably holding the portion of the bobber in the channel, and a detection switch in communication with the flap such that movement of the flap in at least one direction causes the detection switch to be actuated. The apparatus may also include an alerting assembly for signaling that the disturbance detecting assembly has detected a disturbance of the fishing gear.
