Crayfish can be caught by hand around rocky water areas, but if you want to catch a large number of crayfish at greater depths of water, using a net is a better option. The number of crayfish you will be able to catch will depend on the size of your net. Using a few commonly found tools and objects, you can make your own crayfish net, which is a nice alternative if you want a low-cost harvesting method. A homemade net can work just as well as a store-bought net, and you can easily modify the size of your net to fit your needs.
Cut 3 feet of poultry netting with a scissors and roll it into a tube lengthwise with one line of mesh overlapping the other.
Tie three zip ties over the overlapping mesh ends at the top, centre and bottom to secure them. Tie two more zip ties in between the top and centre sections and between the centre and bottom sections. Cut the excess ends of the ties with the scissors.
Close each open end of the net by tying them together with a zip tie.
Tie five zip ties to the centre of the bottom and end sections of the mesh and trim off the excess ends of the ties. This will serve as the funnel section of the net. Fold in the corners of the net at the bottom.
Flip the net over to the other end and tie zip ties around each section of mesh, 5 inches from one end to the other. Fold the open corner over and secure it with a binder clip. The binder clip will hold the net’s opening together when you need to remove the crayfish.
Attach two fishing weights to some string and tie them to two sides of the net, allowing the weights to run down along the sides. The weights will help the net sink when you lower it into the water.
Tie two more pieces of string to the top of the net. Cut them to the lengths you want for lowering and lifting the net in and out of the water.
Place your bait inside the net to lure the crayfish. Lower the net into the water and lift it out when you're ready to harvest your crayfish.
Avoid picking up crayfish directly with your hands since they have pincers that can pinch your skin.