I think the guy should be fined...I know, I know it's a shark, but if this is real he let go of the pole and now the shark is swimming around with a pole dragging....the guy's an idiot in more ways than one
There are many clues that this is a fake. The wash from the boat towing the "shark" is briefly visible. The caudal (tail) fin of a real shark swimming on the surface usually is visible. A real snagged shark would not swim in a straight line for that duration.