Duobao fish belongs to marine fish, which is a kind of marine benthic fish of halibut, halibut and teleost. Scophthalmus maximus is mainly produced on the east coast of the Atlantic Ocean. It is a rare low-temperature economic fish and one of the precious fish endemic to the northeast Atlantic coast. ?

The natural distribution area starts from Iceland in the north and reaches the European coast near Morocco in the south, and is relatively produced in the waters near the North Sea, the Baltic Sea, Iceland and Scandinavia. Naturally distributed in the European coast on the east side of the Atlantic Ocean, it is common in the North Sea and the Baltic Sea, and also distributed in the Black Sea and the Mediterranean coast, mainly in the North Sea. It has the advantages of adapting to low temperature and water temperature, fast growth, good meat quality, great breeding and market potential, and has become one of the excellent marine cultured fish developed by European countries. ?

Second, what are the characteristics of Duobao fish?

1. can change the color of the abdomen. Scophthalmus maximus is similar in shape to flounder. The body is flat and oval. Both eyes are on the left side of the head. The left side of the body is light brown with irregular spots, and the abdomen is light in color. It will hide its body and avoid the enemy according to the changes in the surrounding environment.

2. Have the wisdom of ambush and predation. In natural waters, turbot has the ability to ambush and prey. Common prey targets include spotted mullet, striped mullet and white mullet, and grass shrimp. ?

3. It can be cultivated all year round. The survival water temperature of turbot adults is 2-36 degrees, the growth temperature is 16-32 degrees, and the optimum growth water temperature is 2 1-26 degrees. The optimum salinity at the seedling stage is 18‰-30‰, and the deteriorated larvae have a wide range of salt tolerance and can grow normally in the range of 0‰-30‰.

Third, the nutritional value of the treasure fish?

1. Duobao fish is rich in omega-3 fatty acids, protein, vitamin A, vitamin C, calcium and iron. ?

2. They can increase the content of high-density lipoprotein (HDL) in human body, help to decompose fat, help to lower blood lipids, relieve the pressure of blood vessels such as aorta, and effectively reduce the incidence of heart disease.

3. The nutritional value of Duobao fish is very rich, which is reflected in the rich colloid under its skin. Gum is delicious, not only has the effect of beauty, but also can nourish and improve the body's resistance. ?

The content of glial protein is high, which has a good moisturizing effect on skin and beauty, and can tonify kidney and brain. Regular consumption can nourish and strengthen the body and improve human immunity.