It's a start, but there's a lot missing here.
It's a bit unclear what a lot of things mean. I'm not sure if I caught any fish at all which kind of defeats the purpose of the game.
Finding the fishing spots also takes up a lot of the game, I'd recommend adding some kind of indicator on the map (which is a neat little addition by the way!)
Ultimately the game needs a lot more player feedback, both in the form of visual cues and sounds. I'm sure the game is good, but that doesn't matter if I can't figure out how it works!