Wardens spent all day Monday searching for a fisherman who went missing on Great Moose Lake in Hartland.The search began Sunday night but with no luck and Monday divers were brought in.A spokesman for the warden service say they’re looking for 66-year-old William Witt of Harmony.Lieutenant Kevin Adam of the Maine Warden Service says someone spotted Witt’s boat around 7:00 Sunday night in the lake with no operator, still in gear, and spinning around in circles. Wardens found a fishing pole on the boat with a fish still attached.Divers have spent most of their time searching a small area known as “pickerel cove”.Searchers tried using the Maine Warden Service plane to search from the sky but Adam said with the choppy water the pilot was struggling to see.”Typical Maine water, it’s not totally clear,” Adam said. “They’re getting some good visibility, better than we thought. But the pilot can’t see down through it.” Adam says this incident is a reminder to everyone who spends time on the water to wear a lifejacket.”I’ve never seen yet where we’ve had to dive for somebody that wore their lifejacket. In waters like this your survivablilty rating is going to be much better because it’s warm. And rescuers can get to you.”Adam says since they don’t know for sure where the man could have gone in the water it could take several days to find him.