Metapenaeus ensis is a sea shrimp. Indeed, the metapenaeus ensis we bought now is kept in fresh water, so we will mistakenly think that metapenaeus ensis is a freshwater shrimp, that is, a river shrimp. Actually, it's not. It's just a diluted shrimp fry. It can be raised in fresh water, but it still belongs to sea shrimp. Many seawater varieties have desalted seedlings, and now freshwater culture of seawater varieties has become very common.

More than a decade ago, most of metapenaeus ensis was wild sea shrimp. Today, metapenaeus ensis on the dining table has become a cultured species. After all, the output of wild shrimp is far from meeting the demand of our prawns. At present, most of metapenaeus ensis is breeding in fresh water and cultivating in seawater. The reason for its name is also "enclosure culture". In the past, metapenaeus ensis grew up in the enclosure of paddy fields, so it was called "base enclosure". In modern times, most of them build feeding ponds at the estuary for artificial feeding. Metapenaeus ensis is not the scientific name of shrimp, but a popular name in life.

Freshwater aquaculture: Freshwater aquaculture refers to the production of aquatic economic animals (fish, shrimp, crab, shellfish, etc.) and aquatic economic plants by using ponds, reservoirs, lakes, rivers and other inland waters (including brackish water), which is an important part of inland aquaculture. The main breeding objects are fish. The shrimps are Macrobrachium rosenbergii and Hainan prawns, and the crabs are mainly river crabs. At present, the freshwater cultured fish in China mainly include: fish, grass carp, silver carp, bighead carp, carp, crucian carp, bream, bream, non-crucian carp and other economic fish. China's freshwater aquaculture area and output rank first in the world.

Is metapenaeus ensis in the sea or in the river?

Metapenaeus ensis likes to live in shallow sea with sand and mud bottom and low salinity. He usually hides his body in the seabed, only protruding his eyes and breathing at the front end of his head to escape from the enemy and wait for food. When the tide rises, he will climb into some slow-flowing inner bays to live. After discovering this characteristic, fishermen pull nets or build stone foundations in the inner bay, and so on.

The fishermen of the older generation called these traps as a base fence, so the shrimps caught with the base fence were also called metapenaeus ensis. Therefore, in different regions, metapenaeus ensis refers to different shrimps. For example, in the northern market, the "metapenaeus ensis" often refers to fresh, lively and striped. Another example is the southern market, where "metapenaeus ensis" does not refer to Japanese prawns! Most of them refer to the earliest "metapenaeus ensis"-Penaeus monodon.

The difference between sea shrimp and river shrimp

Many friends often confuse river shrimps with sea shrimps. They both belong to brachiopods, and they are very similar in appearance. In fact, there are many differences between river shrimp and sea shrimp.

1, the most obvious difference is the living environment, one is living in the sea and the other is living in rivers and streams. Sea shrimp is seawater shrimp, and river shrimp is freshwater shrimp.

2. Generally, white shrimp is the main species of sea shrimp. Macrobrachium macrobrachium is the main species of river shrimp.

3. White shrimp, also known as Shake Shrimp, Jiangtu Shrimp and Yingchun Shrimp, is covered with carapace. The second carapace of the abdomen covers the first carapace, with two short fine whiskers. The body is white and transparent, with blue or red spots. The shell is very thin, but it is hard. The shrimp body is slightly flat and the ridge of the shell is slightly edged.

Macrobrachium macrobrachium, also known as green shrimp and firewood shrimp, is also covered with a carapace, but there are pincers in front of the feet, especially the second pair of feet is very thick, its length is more than twice the body length, and it is strong and powerful, which can be used to attack and defend against enemies. The shrimp body is turquoise with brown stripes, the shell is thin and soft, the shrimp body is cylindrical, and the shell ridge is round. The shrimp meat is translucent and jade-colored. After cooking, the double white shrimp is crystal clear and bright, and the taste is more elastic, smooth and tender.

4. River shrimps are mainly green shrimps with brown stripes and thin and soft shells. Although it is small, its protein content is not inferior to that of shrimp, and its calcium content is also higher. Just because the river water is easily polluted, the quality of shrimp may be affected.

Shrimp lives in the ocean, although there is pollution, but the impact is not great, so it tastes delicious and is the first choice for modern people on the table.

5, the shell of sea shrimp is hard, and the river shrimp is soft. Sea shrimp is a little bigger, while river shrimp is a little smaller. As for the taste, according to personal taste.

Tips: Both river shrimp and sea shrimp are delicious. As for which nutritional value is higher, it is almost the same, and there is not much difference. If you like sea shrimp, it doesn't hurt to eat a little more. If you like river shrimp, you can eat a little more.