Fish Aplenty, Just how can we catch them?

The river mouth, rather the end of the monsoon canal is teeming with fishes. Fish of all sizes and school of them. Once in a while the whole school will jump out of the water to escape predators. Several fishermen like me were there. They use live bait like prawn and small fishes. No bite whatsoever. It is frustrating to see all the fishes and yet can't catch any of them.

Life as a fisherman must be tough. Or maybe they learned how to catch fish well. Otherwise they will starve. I wonder if there is a trap that will make fishing a lot easier and less frustrating, more fun, with less time and less dependent on luck.