conv: I was out walking by the lake over the weekend and there shore was just covered in dead rotting fish. I was out walking by the lake over the weekend and there shore was just covered in dead rotting fish. what happened why were their so many dead fish? I don't know_comma_ that's what I would like to know! The best I can imagine is that the water quality dropped_comma_ and they died. I imagine it was pollution.  I hope they are not using the lake for drinking water .