When operating, water is passed through the hopper to attract fish into it.
Different kinds of fishing lures are used in order to attract fish.
Something else you can look for is an unusual feature that may attract fish to it.
It has been known for a long time that a light attracts fish, shrimp and insects at night.
They sometimes drop food on the water's surface to attract fish.
The nutrients carried by the fresh water attract fish and fishermen.
The fruits falling from the tree attract fish that are then caught.
They use huge nets and gas powered lights to attract fish after dark.
A popper has a colorful design in the front to attract fish.
It uses this to attract smaller fish in the dark abyss.