Known as prawn, tiger shrimp, etc., Penaeidae is an animal of the genus Neopenaeida, which is distributed in the east coast of Japan, the East China Sea and the South China Sea of China, the Philippines, Malaysia, Indonesia and Australia. It has high nutritional value and economic value.
Metapenaeus ensis is a kind of shrimp in the coastal shallow sea, which has the advantages of strong omnivorousness, wide temperature, wide salt, rapid growth, strong disease resistance and so on. Moreover, it can resist hypoxia and has the habit of diving to the bottom. Because of its thin shell and fat body, the meat is tender and delicious and can be sold alive, it is favored by consumers. It is an excellent variety of "shrimp cultured lightly" at present.
Extended data collection in metapenaeus ensis
The harvesting time in metapenaeus ensis mainly depends on the growth and market demand of shrimp. Generally, commercial shrimp can grow to 8-10 cm in 90-10 days in rice fields. It's the mature season of rice. At this time, shrimp can be harvested before harvesting, and the common harvesting methods are as follows.
1, shrimp harvesting in the ground cage: put the ground cage in the shrimp ditch of the rice field in the evening, and collect the cage the next morning. Each cage can be harvested by 0.5-1kg, and 25-30 cages can be harvested per mu of field.
2. Catch shrimps with a net: put the paddy water into the side ditch, and then use a small net to pull the net in the paddy ditch. Generally, 3-4 nets are pulled continuously. The catch rate is 40-50%, and the net is drawn in the evening.
3. Shrimp harvesting in dry fields: When the water temperature is 10-15℃, shrimp stop eating and growing. At this time, rice fields are harvested by the above two methods, and the remaining quantity is not much, so they can be harvested in dry ditches.
Baidu Encyclopedia-metapenaeus ensis
Baidu encyclopedia-Jiwei