地笼
The ground cage is made of plastic fiber, all artificially woven and knotted. It is divided into one gear and one gear, the normal one is about 50cm, and the small one is about 20cm. There are many entrances on both sides of the ground cage, and the internal structure is more complicated (called "shoulder" in the industry). It is difficult for fish and shrimps to come out after entering. The exit is always at the middle and tail of the cage, one on each side, or directly at the two ends (this design is inconvenient, the cage is unstable and easy to tilt under water), and the small cage has only one end. Export
