Type of gillnet in structure

Gillnet is more suitable for fishing in various water bodies. It has simple structure, convenient operation, low cost, high catch rate and strong selectivity for fish size.
According to the different structures, there are mainly single-layer gill nets, three-layer gill nets, frame gill nets, and mixed gill nets. The single-layer gill net is the simplest gill net of the structure, consisting of a single layer. All mesh sizes and network cable specifications of the same gill net are the same. The three-layer gill net is a combination of two large mesh net clothespins with a small net mesh coat on the upper and lower ropes. The mesh area of the small net mesh is large, when the fish passes through a large mesh net. The clothes collide and drive the loose mesh mesh and penetrate into another large mesh net to form a small bag, and the fish is caught in it and caught. The box gill net is a number of sash ropes added to the single layer of thorn net, which makes the net piece into a small pocket-shaped sash, which increases the entanglement ability of the fish.
The mixed gill net refers to the different meshes, materials and even structures of different parts of the same top gill net, so as to capture different sizes of fish in different water layers.