The Tongkou crab is relatively large, usually with several hundred to several thousand acres. It has many shallow pools and abundant aquatic plants. It is suitable for the natural growth and reproduction of Procambarus clarkii. When the price of crawfish was low, it was raised. Crabs always try to clear the crawfish in the pool. In recent years, the increase in crawfish prices and the market’s popularity have prompted farmers to reduce the amount of crabs that are stocked, and to protect the places where Procambarus clarkii grows, inhabits and breeds. In the breeding process, the crawfish seedlings mainly come from the natural reproduction of the pond. The stocking amount of the crabs is usually 100-200 pieces/mu, the carp is 20-60 pieces/mu, and the carp is 5-15 pieces/mu. There are also a small number of yellow trout, loach and stingray stocked. Usually the aquaculture production is: crayfish yield 40 ~ 70kg/mu, crab 10 ~ 20kg/mu, fish production 30 ~ 40kg/mu.
Technical points:
(1) Planting and layout of aquatic grasses;
(2) Control of catch and broodstock retention;
(3) After October, the water level should be lowered to expose the dike and high slope in the pond, which will help to hold the squirrel crayfish in the cave;
(4) Procambarus clarkii fishing techniques.
Technical points:
(1) Planting and layout of aquatic grasses;
(2) Control of catch and broodstock retention;
(3) After October, the water level should be lowered to expose the dike and high slope in the pond, which will help to hold the squirrel crayfish in the cave;
(4) Procambarus clarkii fishing techniques.
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