What's the difference between flat fish and Beijing fish?

Pomfret (also called mirror fish) is flat (also called oblique mouth)

Silver pomfret and pomfret; ; Silver pomfret)

Also known as silver pomfret, mirror fish and cheddar fish, they are precious edible and economic fish, which are produced in the coastal areas of China. The body side is flat and high, oval, up to 40cm long; Silver gray; Small head, round kiss, small mouth and thin teeth. The ventral fins of adult fish have disappeared. The meat is tender and delicious, with high fat content and few thorns, mostly soft thorns. The whole tail is used for cooking, suitable for stewing, stewing, steaming, stewing, smoking and frying. Representative dishes are braised pomfret, drunken pomfret and so on.

Paralichthys olivaceus; ; Flounder)

Also known as the mouth and the earth, it is a kind of flounder, a kind of flounder. It is produced in coastal areas of China and is one of the important and precious marine fish. The body side is flat and rectangular, and the length can reach 70cm. Both eyes are on the left side of the body. The side with eyes is brown with dark or black spots; The side without eyes is white. The mouth is big and symmetrical. The scales are small, and the dorsal fin and anal fin are covered with scales. The meat is tender and white, delicious and full, with few thorns. In cooking, it is suitable for processing into strips, blocks, dices, chips, velvet and so on. , and can be used in many cooking methods, as well as drying, pickling and canning. White sauce, steamed flounder and other representative dishes. Because it is easy to corrupt, it should be carefully kept.

silvery pomfret

Pomfret, collectively known as pomfret, is also called mirror fish locally, belonging to pomfret suborder, pomfret family. Generally speaking, pomfret is 85 ~ 260 mm long, short and tall, extremely flat, slightly rhombic, with a slightly inclined mouth, no ventral fins and a deeply forked caudal fin. The lower leaves are longer than the upper leaves and look like swallowtails. The body is silvery white, the upper part is slightly yellowish gray, the round scales are very small, and most scales have tiny black spots. Pomfret is a pelagic fish, widely distributed in the East China Sea, with a large number, and also distributed in the Yellow Sea and Bohai Sea. ?

Pomfrets in the East China Sea are distributed along the warm current of Taiwan Province Province, the coastal water system and the mixed waters of the Yellow Sea cold water, and migrate seasonally. Generally live in water with a depth of 30-70 meters. According to the location of its wintering sea area, it can be roughly divided into two branches: Zhejiang-Fujian offshore and the central East China Sea. In winter, pomfret live outdoors. From March to April, with the enhancement of warm current, pomfret spawn and migrate from south to north and from deep water to shallow water. The spawning grounds of pomfret are generally located near the estuaries of rivers within 30 meters along the coast of Jiangsu, Zhejiang and Fujian, such as Lvsiyang in Jiangsu, Daiquyang, Dayuyang and Damuyang in Zhejiang, Wenzhou offshore outside the Oujiang estuary, Sishishuang Islands, Yushan and Qixing in eastern Fujian. Its spawning period is April-July in Mindong Fishing Ground and May-July in Jiangsu and Zhejiang Provinces. It is observed that the breeding population of pomfret entering each spawning ground can be obviously divided into two groups, the spawning period is one month apart, and the individuals who laid eggs in the early stage are less than 250 ~ 500 grams, which are silvery white; The individuals of pomfret that lay eggs in the later stage are 500 ~1500g, which is silvery gray. After spawning, pomfret scattered in the inshore waters in search of bait, and the water temperature dropped in winter, and the fish migrated to the offshore deep water for the winter. ? Pomfret can be caught in the East China Sea all year round. Spring and summer are the main fishing seasons for fish spawning and migration. In 1970s, the trawler of this company often caught 200-300 cases of single weight 1-2 kg of pomfret when it mainly fished swordfish and fish in the fishing ground of Xiada array Islands in Zhoushan Islands every year. Pomfret usually inhabit in scattered and small groups, which is not suitable for centralized fishing and is only used as catch. In recent years, due to the fishing intensity, pomfret has not been spared, the output has dropped sharply, and a large number of young fish about the size of leaves have been arrested, which is really sad. The protection of marine fishery resources in the United States can be said to have laws to follow, strict law enforcement, and strong citizen awareness of resource protection. In licensed fishing, if fish below the prescribed standards are caught, they must be released unconditionally. Different fishing boats catch different species in different seasons. When fishing trout, if you catch pomfret, you must put it back into the sea, otherwise you will be severely punished. Citizens' awareness of resource protection is a conscious awareness based on the law, and even if no one looks at it, it will not cross the line. In order to protect the excellent fishery resources such as pomfret in China, it is necessary to raise the awareness of resource protection of the whole nation, strictly limit the number of fishing boats and fishing gear mesh, implement fishing moratorium according to law, and strengthen law enforcement. Otherwise, the plump pomfret will bid farewell to our descendants in the near future.

Pomfret is a precious economic fish in China, with tender meat, rich nutrition and soft bone spurs. Pomfret is especially loved by people in the south and north, in hotels and families, among the elderly and children. In other words, eating sashimi is a lifestyle of China people in recent years. Besides tuna and salmon, pomfret is close behind. Sashimi made from pomfret is a very delicious food. Considering the price and other factors, pomfret will become the first choice for wage earners. There are many cooking methods of pomfret, among which steaming, stewing, stewing and frying are widely used in high-end hotels and families, and steamed pomfret is recognized as a good food. ?

Scale the fresh pomfret, slice it obliquely, remove the stomach sac and liver in the abdominal cavity, wash it with clear water, cut a flower knife about 10 mm wide on both sides of the fish, sprinkle a little salt on it, put it in a plate, pour a little soy sauce, add spices such as pepper, aniseed, dried red pepper, onion, ginger and garlic, and steam it in a steamer for 35 minutes. Steamed pomfret is light, elegant and fragrant, and it tastes more attractive. It is a masterpiece of the best seafood.

left eye

PARALICHTHYS olivaceus is a kind of PARALICHTHYS olivaceus, commonly known as tooth slice, mouth deviation, flounder and so on. Both eyes of PARALICHTHYS olivaceus are on the left side of the head, with brown to dark brown eyes, comb scales, white eyes, round scales, equal-length mouth cracks on both sides, and a row of big fangs on the upper and lower jaws. Paralichthys olivaceus is a warm-water bottom fish. Its larvae have symmetrical eyes and undergo metamorphosis during development. After metamorphosis, its right eye turned to the left and sank to the bottom of the sea. It often lies on its side in the sediment and migrates in groups according to the season. Generally, it is 250-500mm long, and the largest fish reaches 700mm. Distributed in the western North Pacific Ocean and along the coast of China. Paralichthys olivaceus is widely distributed in the world. When trawling in the Sea of Okhotsk and the Bering Sea, the large trawlers of the group company can often catch flounder with a body length of 1.5m and a body weight of 100 kilograms.

How does PARALICHTHYS olivaceus metamorphose during its development? Newborn flounder, like ordinary fish, swims in the upper and middle waters for food. After about 12 days, the small fish grows to about 7 mm and swims to the offshore at a speed of one kilometer every day. At this time, the body length gradually began to change. About 20 days later, when the flounder grows to 10 mm, it swims around like a madman, loses its normal state and gradually loses its balance. One eye of the flounder began to move, and gradually moved to the opposite side through the upper edge of the head until it approached the other eye, thus completing the migration from the right eye to the left eye. It turns out that the skull of PARALICHTHYS olivaceus is made of cartilage. When the eyes start to move, the cartilage between the eyes of PARALICHTHYS olivaceus is absorbed by the body and the channel is opened, so the movement is barrier-free. Natural selection, survival of the fittest has changed, and PARALICHTHYS olivaceus has been unable to adapt to floating life. When the fish completely loses its symmetry, it sinks to the bottom of the sea, with its deep eyes facing up, which is very similar to its habitat. In the future, if it swims to the bottom of the sea with different body colors, it can change the color of the eye side according to the color of the surrounding environment, so as to achieve the purpose of self-protection, and it is more convenient for camouflage and hunting.

When the right eye of PARALICHTHYS olivaceus moves to the left eye, it becomes a flounder. In ancient China, some people mistook flounder and flounder for a female and a male, because they swam closely side by side in pairs for food, with their eyes outward, and walked side by side like husband and wife. People regard the flounder as a symbol of loyal love, and there are still many well-known poems: "Phoenix amphibious flounder"; "If successful, why do you want to resign? Better be a mandarin duck than a fairy "; "I am happier than my eyes, and I am willing to marry my son." Li Yu, a famous dramatist in the Qing Dynasty, once wrote a play about the love story between Tan Chuyu, a scholar, and Liu, a female artist. The name is Flounder.

Paralichthys olivaceus has tender meat, delicious taste and high economic and edible value, and is a good raw material for making sashimi. Jiaozi stuffed with flounder and baked pot stickers are really fresh and beautiful. The skimmed fish pieces and segments cooked by PARALICHTHYS olivaceus can make people have an appetite. Stew PARALICHTHYS olivaceus slowly with slow fire, or steam it with urgent fire, which is pure and delicious, and each has its own advantages. In recent two years, imported flounder heads have flooded into the market, and stewed flounder heads have become fashionable and delicious in hotels. Its diners flock, not only to pay tribute, but also to meet again after a long separation.

Paralichthys olivaceus is not only rich in nutrition, but also has the effects of diminishing inflammation, detoxifying and tonifying deficiency, and is mainly used for strain, weakness and chronic dysentery. According to "Dietotherapy Materia Medica", tonifying deficiency and benefiting strength. "Xinglin Man Chun Collection" says to stop diarrhea and dysentery. The "Tips for Tonifying Food" is helpful to tonify spleen and stomach, replenish qi, soothe the stomach and stop dysentery. In addition, there are many medicinal dietary remedies for PARALICHTHYS olivaceus.