China shrimp: It can tolerate the low temperature of 5-6℃, the temperature range of larval development is about 20-26℃, and the suitable temperature for the growth of young shrimp and adult shrimp is about 25-30℃. It can survive and grow in brackish water with salinity of 1 and seawater with salinity of about 40.

Penaeus monodon: The optimum temperature is 25-30℃, and it will die at about low temperature 12- 14℃, and it can survive in waters with salinity below 0.5.

Penaeus vannamei: The optimum growth temperature is 25-32℃, and it can grow normally in water with salinity of 5‰-40‰.

I. Requirements for temperature of shrimp culture

Shrimp mostly belongs to tropical and subtropical species, generally not tolerant to low temperature, and will die at high temperature of about 38-39℃.

1, Penaeus China: It can withstand the low temperature of 5-6℃. It can lay eggs at the water temperature above 13℃, and the optimum temperature is16-18℃; The optimum temperature for embryo development is 18-20℃. If it is too low, the development will be delayed, and if it is too high, there will be more deformities. The temperature range of larval development is about 20-26℃, and the suitable temperature of juvenile and adult shrimp is about 25-30℃.

2. Penaeus monodon: It will die at low temperature 12- 14℃, and the optimum temperature is 25-30℃.

3. Penaeus vannamei: The suitable water temperature is 16-35℃, and the optimum growth temperature is 25-32℃. When the water temperature is lower than 15℃, Penaeus vannamei reduces or stops feeding; Lie on your side or die below 9℃; High temperature above 35℃ will greatly affect food intake and growth.

Second, the shrimp culture salinity requirements

Most prawns belong to euryhaline shrimp, which can adapt to a wide range of salinity and cannot survive in pure fresh water. Young shrimps and young shrimps often tolerate lower salinity than adult shrimps.

1, Penaeus China: It can survive and grow in brackish water with salinity of 1 and seawater with salinity of about 40.

2. Penaeus monodon: It can survive in waters with salinity below 0.5, and the most suitable salinity is 12? And the salinity of shrimp seedlings in the early stage is 30? About.

3. Penaeus vannamei: When the salinity is 5? -40? Can grow normally in the water body, and the optimum salinity is 15? -20? . Under the condition of gradual desalination, Penaeus vannamei can grow at salinity of 2? It grows in fresh water, but the quality will drop slightly, and the survival rate of long-distance transportation is relatively low.