Strong concealment and escape of river crabs how to catch river crabs that will be listed on the market

1. Digging holes for fishing in low water levels: this method is suitable for intensive farming in ponds. Lower the water level of the crab pond by 40-50 cm, and dig a pit with a diameter of 40-50 cm and a depth of 50-60 cm at the four corners of the pond's border escape wall, requiring that the peripheral wall of the pit be smooth (or bury the tank in the pond, the mouth of the tank is lower than the mouth of the pond). At night, due to the falling water level, the crab quickly climbed ashore along the surrounding anti-escape wall, mistakenly into the pit and could not escape and was caught.

River crab fishing

Second, dry and wet fishing: this method is suitable for intensive culture in ponds and rice fields. River crabs hide in the pond during the day and climb ashore one after another at night. According to this characteristic, add water during the day and pump dry at night to let the crabs climb into the potholes around the anti-escape wall to catch them.

Third, screen fishing: suitable for all kinds of large water surface breeding. Sink the screen to the bottom of the water, and when the crab matures, it crawls in the water and is caught as soon as it touches the screen.

Fourth, flushing fishing: suitable for intensive culture in ponds and rice fields. First drop the water level to 30-40 cm, open the intake valve and drain valve at the same time at night, so that the intake and discharge is the same, the river crab goes up against the fresh water, open a net or dig a trap at the inlet, 90% of the river crabs can be caught.

Fifth, cage fishing: it is suitable for fishing in water bodies with large water surface and dense water and grass. Ground cage method: a long cylindrical mesh bag with a length of 10 to 30 meters and a mouth diameter of 0.3 meters is made of polyethylene rope and mesh sheet, and a square frame made of aluminum wire is made every 0.5 meters in the mesh bag, which is placed in the net, and the net bag is held up as a keel. cut and weave a hole on both sides of each keel face to face, and a funnel is made into a funnel inclined to the mesh bag, once the river crab enters the inclined funnel in the hole. When catching river crabs, put one end of the cage into the purse seine and the other end into the bottom of the pond. When the crabs pass through the cage, they are blocked out of the way, touch the hole of the cage and climb into the cage.

Sixth, crab fishing: split bamboo slices of 3 meters long, 0.5 centimeters wide and 0.3 centimeters thick, weave the bamboo foil with fine brown rope, and put the bamboo foil in the water to form a cross section. when the river crab passes by, the crab crawls along the foil. when the river crab climbs to the top of the crab, there is a funnel-shaped inclined mouth, and the river crab can not get out after entering.

7. Crab fishing method: two bamboo slices (80 cm long, 1.5 cm wide and 0.5 cm thick) are crossed and fastened with a rope more than 1.5 meters long at the staggered cross, and a floating object is attached to the other end. The ends of the two bamboo slices are tied to a net with a square net of 30cm to 50cm. A piece of fish or animal offal is tied in the middle of the net. Put the net deep into the water and catch it every hour.

8. straw rope smoking method: suitable for long water surface or river ditch fishing, twisting straw into a rope with a diameter of 4 cm, fumigating the rope on lit dry straw for 3 hours and 4 hours, then putting it into the water and putting both ends on the bank. The river crab is sensitive to the smoked rope. When it climbs close to the rope, it never crawls over the rope, but crawls along the rope to the shore, burying a pit or net bag at one end of the bank. The crab got into it by mistake and caught it.