What kind of weather is the most eel?

On a hot day, Monopterus albus will run to the knife edge and will not go down to the bottom of the hole. Monopterus albus has no scales. It can stand upright in shallow water, breathe from its mouth to the surface, and store air in its mouth and throat, so its throat is swollen. Freshwater edible fish, widely distributed in Southeast Asia, are produced everywhere except the northwest plateau, inhabiting ponds, rivers, rice fields and other places, often lurking in mud pits or crevices. Go out for food at night. The reproductive situation is quite special. She was a female when she was young, and after a reproduction, she became a male. This phenomenon is called sex reversal.

Monopterus albus belongs to Monopterus, Syngnathidae and Monopteridae. Commonly known as: eel, mackerel, eel, snake fish. English name: Monopterus albus.

The body is slender and snake-shaped, with a flat front and a narrow tail. The head is long and round. The mouth is big, the end position, the upper jaw is slightly prominent, and the lips are quite developed There are fine teeth on the upper and lower jaws and flap bones. Eyes are small and covered with a thin layer of skin. The left and right branchial foramen merge into one on the ventral surface, showing an inverted "V" shape. The branchial membrane is connected with the branchial isthmus. The body is lubricated without scales. No pectoral fins and ventral fins; The dorsal fin and anal fin degenerate, leaving only skin folds, no soft spines, and all of them are integrated with the caudal fin. When living, the body is yellowish brown with irregular black spots, and the body color of Monopterus albus often varies with the living environment.

Monopterus albus is a tropical and warm temperate fish. It is a benthic fish with strong adaptability and can survive in rivers, lakes, ditches and rice fields. During the day, I like to dig holes in humus mud or in the cracks with water on the embankment. Little activity during the day, foraging at night. Gills are underdeveloped, but they can breathe air directly with the help of the epidermis on the inner wall of oral cavity and laryngeal cavity as an auxiliary organ for breathing; It can survive with little oxygen in water. After coming out of the water, as long as you keep your skin moist, you won't die in a few days. Monopterus albus is an omnivorous fish, which feeds on various small animals. It is greedy and eats most vigorously in summer. Long-term consumption in cold season will not kill you.

The breeding season of Monopterus albus is from June to August, and its individual development has the characteristics of sex reversal, that is, from embryonic stage to first sexual maturity, it is female (that is, the gonads of individuals less than 35 cm in length are all ovaries); After laying eggs, the ovary gradually becomes the testis; When the body length is 36-48 cm, it is partially reversed, and the male and female individuals are almost equal; Most of them grow to more than 53 cm for testicles. When the young fish can only grow to 20 cm, the 2-winter-old female fish will reach maturity and have a body length of at least 34 cm. The largest individual can reach 70 cm and weigh 1.5 kg. Monopterus albus lays eggs near the cave where it lives. Before laying eggs, it will spit out foam to build a nest. The fertilized egg develops on the water surface with the help of the buoyancy of foam. Both male and female fish have the habit of protecting nests.

This fish is distributed in Southeast Asia and found in all waters of China except the western plateau. Foreign countries have reached western Korea, southern Japan, the Philippines, Java and Myanmar. Monopterus albus is tender and delicious. High nutritional value. Every 10g eel meat contains protein 17.2- 18.8g, fat 0.9- 1.2g, calcium 38mg, phosphorus 150mg and iron1.6mg. In addition, it also contains thiamine (vitamin B 1), riboflavin (B2), nicotinic acid (vitamin PP), ascorbic acid (vitamin C) and other vitamins. Monopterus albus is not only a famous dish to entertain guests, but also exported live in recent years, selling well abroad, and even frozen eel is exported to the United States and other places. Monopterus albus produces all year round, but it is the fattest around the light summer. There is a folk saying that "Monopterus albus wins glory for summer ginseng".

Monopterus albus is not only delicious on the table, but also its meat, blood, head and skin have certain medicinal value. According to Compendium of Materia Medica, Monopterus albus has the functions of enriching blood, invigorating qi, diminishing inflammation, disinfection and expelling wind and dampness. Monopterus albus is sweet and warm in nature, and has the effects of nourishing the middle energizer and nourishing blood and treating physical weakness. Folk medicine can be used to treat physical weakness, cough, damp-heat itching, intestinal wind, hemorrhoids and deafness. The head of Monopterus albus is burnt to ashes and served with warm wine on an empty stomach, which can cure the hard pain of female breast nucleus. Its bone is used as medicine, and it also treats scabies, and the curative effect is quite remarkable. Its blood drops into the ear, which can treat chronic suppurative otitis media; Nasal drip can cure nosebleed (nosebleed); Especially for external use, can treat facial paralysis and facial paralysis. Eel serum is toxic, but the toxin is not heat-resistant and can be destroyed by gastric juice and heating. Generally, it will not be poisoned if it is cooked. Whether the folk use of eel blood to treat diseases is caused by toxins in blood remains to be further studied. Realize that Tmall can test itself at home without drawing blood!

The blood of Monopterus albus is poisonous. Eating by mistake will stimulate the mucous membrane of oral cavity and digestive tract, seriously damage the nervous system, make people numb and die of respiratory and circulatory failure.