Head: The head of hairtail in the East China Sea is smaller than that in the South China Sea;

After cooking: hairtail in the South China Sea has granular bones, but hairtail in the East China Sea does not;

The most striking difference is that Nanhai's eyes are yellow.

Taste: Hairtail in the East China Sea is more delicious than hairtail in the South China Sea, and the price is also more expensive than hairtail in the South China Sea.

Feeding habits of hairtail in the East China Sea

Hairtail eats more than 60 kinds of bait all year round, and fish and crustaceans are the main bait groups. There are seasonal differences in the food composition of hairtail. The main foods in spring are Pelteobagrus fulvidraco, krill and hairtail. In summer, hairtail, krill, mysid shrimp and octopus are the main species. The main food in autumn is stomatopod larva, seven-star bottom lamp fish and bamboo pod fish; In winter, hairtail, seven-star fish, hairtail and bran shrimp are the main species. The seasonal variation of feeding intensity is not obvious (P & amp； gt； 0.05), the highest in autumn and the lowest in summer; There are differences in the composition of main bait groups in each season, and the weight percentage of bait is the highest; There was no significant seasonal difference in feed diversity index (P & amp； gt； 0.05), the highest in autumn and lower in winter and summer. Compared with historical data, it is found that the food composition of hairtail in the East China Sea has changed greatly, from krill to fish, and it shows obvious cannibalism.

Nutritional value of hairtail

Hairtail is rich in fat, protein, vitamin A, unsaturated fatty acids, phosphorus, calcium, iron, iodine and other nutrients. Hairtail is warm and sweet, and has the effects of warming stomach, moistening skin, invigorating qi and nourishing blood, strengthening body constitution, strengthening heart and tonifying kidney, relaxing muscles and tendons, promoting blood circulation, diminishing inflammation and resolving phlegm, clearing brain, relieving diarrhea, relieving fatigue and nourishing essence.

Hairtail is rich in various mineral elements and vitamins necessary for human body. It is an ideal nourishing food for the elderly, children and pregnant women, especially suitable for people with shortness of breath, chronic illness, dizziness due to blood deficiency, loss of appetite, malnutrition and dry skin. In addition, pregnant women eating hairtail is beneficial to the development of fetal brain tissue; Children eat more hairtail to improve their intelligence; Eating more hairtail can delay brain atrophy and prevent Alzheimer's disease. Women eat more hairtail, which can make their skin smooth and moist, their long hair black and their faces more beautiful.

The DHA and EPA contents of hairtail are higher than those of freshwater fish. DHA is a nutrient needed by the brain, which is very important for improving memory and thinking ability. In addition, hairtail is rich in lecithin, which is more brain-nourishing than ordinary freshwater fish. EPA, commonly known as vascular scavenger, is beneficial to lowering blood lipid. Magnesium rich in hairtail also has a good protective effect on cardiovascular system, which is beneficial to prevent cardiovascular diseases such as hypertension and myocardial infarction.

Hairtail meat is delicate and has no muddy smell. Whether it is fresh hairtail or frozen hairtail, it is easy to process and can be matched with a variety of ingredients. Common practices include stewing, steaming, frying, steaming and braising, as well as dry pots, hot pots and a variety of western and Japanese dishes. Fish is easy to digest and is a common recipe in Xian Yi. ?