Operation technique for catching shrimps in cages

The river shrimp, also known as the green shrimp, is known as Japanese giant shrimp, and is widely used in freshwater lakes, ponds and rivers in China. Because of its delicious meat and rich nutrition, it is much loved by people. In recent years, shrimp farming has become more and more prosperous. However, due to certain problems in harvesting and harvesting, economic efficiency is affected. The technique for catching shrimp in cages is described below for your reference.
(a) shrimp cage shrimp shrimp cage is generally made of bamboo strips or banding, etc., diameter 15-40 cm, for the "D" shape cylindrical cage. The cage has two inlets that are not easily accessible to the shrimp and has an opening at the "D" shaped cage cage. The opening is provided with a lid. Before the work, fish bones, rice bran, wheat bran, and Other bait are placed and capped. The rope is used to tie together hundreds of cages at a distance of 4--10 meters. There are also the shrimp cages that are to be placed separately. The bamboo cages should be tied with bamboo baskets or tied with small ropes. At the other end, a buoy should be placed in the water. In the evening, the cage is closed and the cage is harvested in the morning and the shrimp is picked up. In some places, small, cylindrical plastic shrimp cages are used. There is only one inlet at one end and a lid at the other end. The cost is low, the method is simple and the fishing effect is good.
(b) Shrimp balls Shrimp shrimp balls are also called shrimp cages in some places, and shrimp are caught in lakes, ponds, grassy rivers and other waters. Shrimp balls are braided with bamboo strips, wicker, banding tapes, etc. Diameters are 60--80 cm. They are flat round air balls, which can be used to fill broken nets, bamboo shoots, bamboo strands, palm silks, etc. into air balls. , and tied with a rope, tie a buoy at the other end. Shrimps that are operated in shallow water are sometimes tied directly to a small bamboo pole and placed in water. The shrimps are allowed to inhabit and feed in the shrimp balls. Generally, they are separated by 30--120 minutes. A small boat is placed on the water surface where the shrimp balls are placed. One hand exercises a hook, the shrimp ball is hooked and the shrimp ball is lightly added to the water surface. Or grab the buoy and bamboo raft and gently lift the shrimp ball to the surface. Then another hand puts a 0.3--0.8 square meter elliptical or trapezoidal dip net into the water 30--50 cm, and then The shrimp balls are pulled into the dip net, and the shrimps in the dip net are transferred into the hold or in the fish larvae for raising. There are also no net operations, you can directly put the shrimp balls into the boat, the shrimp shrimp into the boat, this method is simple, but some shrimp may escape. This method of operation, if put in the shrimp balls, such as small fish or powder group as a bait, the fishing effect is better.
(c) Ground cages, cage cages for catching shrimp are also called ground nets, which are square or “T” shaped. Some places are called cages, and cages are mostly square cylinders. They are mostly made of PE mesh cable, with an inside diameter of 40--60 cm, a length of 3--10 meters, and two pointed tips. They consist of multiple sections, generally 7--16 knots. Each section is made of wire or bamboo poles. On the opening, there are meshes made from each mesh. The diameter of the mesh is 10-20 centimeters. The last section is a net sac to accommodate the catches. During the operation, shrimps like to inhabit in the waters with water plants and micro-flows. The cages and cages are placed in lakes, reservoirs, ponds and rivers in the shallow water area. Once in the morning and at night, shrimps are taken from the net sac. If bait is placed in the cage, the fishing effect will be better.
(d) Shrimp Shrimp Shrimp Shrimp Shrimp is a long, thin trumpet-shaped bamboo cage with a large entrance, which is made of bamboo slats, etc. It is more than 1 meter long and has a trumpet at the mouth. According to river shrimps, they like to inhabit plants on a day-to-day basis. They go out in the evening and go back to the habits of upstream swimming. In the rivers, ravines and streams, they choose shores with water currents and build dams with weeds (the size of the dam is to make water flow. Flowing through the dam due to obstruction of the increased water level creates a turbulent flow. Shrimp larvae were placed in a turbulent stream to catch shrimp. There are many ways to catch river shrimp. All localities should select suitable fishing methods according to specific conditions in order to achieve a good fishing effect. Due to the fact that the value of commercial products of dead shrimps will be greatly reduced, they should be carefully handled to prevent the shrimps from being injured or died of hypoxia due to suffocation. The captured river shrimp should be kept in clean water immediately until it is freshly marketed to increase economic efficiency.

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