Mad Scientist

You might try fly fishing with flies that imitate mayflies.

Since the problem occurs in the cold, could it be water in the system that freezes when the temperature is below 0C?

I sometimes hike into lakes with no road access. Fishing from shore is limited by how far I can cast. I would love to have a remote control boat (toy sized) that could carry my line and bait out deeper in the lake and release it where I think the fish might be lurking. Better yet would be a boat that could troll a lure around the lake and release it when a fish strikes.I think all the techno exists but needs to be put together in one package.

I think it is a lynx. They can make some very strange sounds and one of their sounds is described as sounding like a baby crying.