One level, two stills and three towers refer to the three most delicious fish. The first is a few bottles of fish, followed by static fish, and the third is sole fish. This is a popular saying in the Bohai Rim region. Fishermen who make a living by fishing in it are the delicious ranking statement of fish in this area. The sole fish belongs to Chordata, Vertebrate Subdivision, Skeletal Fish, 1 sole family. Commonly known as sole fish, also known as tongue sole. The body is flat and long tongue-shaped, eyes are always on the left side of the head, hyoid bone is longitudinally narrow and plate-shaped, with pseudo-mesenchymal spines, odd fins are completely connected, and there is no pectoral fin. There are about 3 genera 103 species.

Detailed description of flat fish

Flat fish, scientific name pomfret, is a kind of marine fish with flat body. Because the thorns are few and the meat is tender, it is very popular with people. There is a folk saying that eating fish is flat, crystal and three-sided. Flat fish is rich in nutrition, containing protein 18.5g, folic acid 40.7g, cholesterol 77mg, vitamin A 24mg, thiamine 0.04mg, riboflavin 0.07mg, nicotinic acid 2. 1mg, and vitamin E E E 1.26 per/00g.