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Jellyfish are also known as jellyfish.
Jellyfish is an edible jellyfish, until more than 1600 years ago in modern times, people began to eat jellyfish, we often eat jellyfish parts, mainly jellyfish head and jellyfish skin, but many people can not clearly point out that the "head" of jellyfish is **. In fact, the bottom of the jellyfish looks a lot like the dark red part of the leg, which is academically known as the mouth and wrist of the jellyfish, except for the short neck, the rest of the jellyfish head is also loved by people for its crispy and thick flesh.
And where we often mistake it for the head of a jellyfish, the smooth canopy of the upper part of the jellyfish is the jellyfish's skin, which is usually blue-blue or yellowish-brown and milky white.
The junction between the jellyfish head and the jellyfish skin is called the jellyfish brain, which is crystal clear, extremely delicious, and a delicacy not to be missed. There is a layer of film inside the jellyfish umbrella cover, called jellyfish coat, this part is steamed and dried to dry, and a pound is worth thousands of yuan.
Away from the sea, jellyfish seem to be relatively rare.
In fact, it is normal for people to not know much about jellyfish, which used to be relatively common on the seaside, and it was not until the 21st century that the jellyfish farming industry gradually emerged and developed rapidly. Most of the impressions of jellyfish are in the aquarium, which is small and charming to fluoresce behind the glass. It is true that jellyfish do not have specialized locomotor organs and can usually only float with the waves, but they can grow to a large size, sometimes with an "umbrella diameter" of more than 1 meter, so they are also called super-large or giant plankton.
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How to distinguish good from bad jellyfish heads.
High-quality jellyfish head: It should be white, yellow-brown or reddish-amber and other natural colors, shiny, intact, no stings, thick and tough meat, and crunchy taste. Inferior jellyfish head: purple-black, poor hand-pinched toughness, easy to break when picked up by hand, with peculiar smell and pus-like liquid.
Because most of the domestic jellyfish products are produced in family workshops, it is difficult to control the quality control in the production process, and the unqualified products on the market mainly have the following forms, and consumers must be careful when purchasing.
1.Alum jellyfish: Some producers sell alum jellyfish products as finished products, this kind of jellyfish skin has a translucent jellyfish-like appearance, and has a soft and crisp white hemp rot shape, squeezed by hand, there is liquid overflow; The appearance of the jellyfish head is brownish-red, with a soft and white gelatin-like substance in the center, which is astringent, slippery, and inedible.
2.Some salted jellyfish products sold in the market are sold by immersion in salt water, and consumers should pay attention to the composition of the aqueous solution, as well as the solids content and net content in the packaging.
3.Artificial jellyfish: In recent years, some producers have used alginate and other raw materials to produce artificial jellyfish skin, because artificial jellyfish skin (silk) and natural jellyfish skin are similar in appearance, but there is no natural jellyfish skin nutrients, especially in inland areas consumers have poor ability to identify natural jellyfish skin, and they will be mistaken for natural jellyfish skin and purchased without careful identification when purchasing.
Jellyfish heads are divided into artificial and natural, but it is not difficult to distinguish between the two, the former looks white, dull, and bites silently; The latter is white and red, shiny, smooth on the surface, has a crisp sound when eaten, and tastes better. In addition to a certain distinction in the taste and **, it is also divided into jellyfish skin and jellyfish head, generally jellyfish skin is an umbrella-shaped part, and after production, it is a translucent round piece, white or milky white. The shape is not neat, the meat is relatively thin, and the color is uneven, such is defective, and the jellyfish head is made of the lower part of the jellyfish, touch, etc., and the taste is more crunchy than the jellyfish skin, and the white, yellow-brown or red-amber color is better.
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Many. Ships, each time they are hit by a strong storm or controlled by bandits.
Therefore, scientists simulate the jellyfish's organs to feel infrasound, and the jellyfish's infrasound organs can sense whether a storm is coming, and his organs can understand the intensity of the storm and change its direction.
Therefore, scientists have successfully designed the jellyfish ear instrument based on the infrasound organ of the jellyfish, which has a resonator that speaks to receive infrasound waves, and this vibration can be converted into a converter of electrical impulses and an indicator. When this instrument is installed on the ship, the horn rotates 360 degrees, and when it receives infrasound waves from 8 Hz to 13 Hz, the rotation will automatically stop, and the indicated place is where the storm is coming, and the water fungus instrument will only show the strength of the coming storm, and it can also turn the bow of the ship to the direction where there is no storm. If there is no one to drive the boat, the boatmen want to rest, so they can set their own course and start their own mode to start the automatic sailing.
If you encounter a bandit abandonment, you will receive a red alert, he will not think out loud, he immediately uses the antenna to transmit the dragon to the headquarters, they will let the police immediately rush to control, bandits! As long as you fall in love with the jellyfish ear instrument on every ship, then every traveling ship will not be in danger!
In nature, as long as you pay attention, life is full of knowledge, seemingly ordinary nature, in fact, there are infinite mysteries, waiting for us to explore and discover.
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1.Animal jellyfish are animals and not plants.
2.To be precise, jellyfish are creatures of the genus Jellyfish of the genus Elegans Elegans, so it is clear that they belong to animals.
3.They are a type of jellyfish.
4.They are also movable.
5.They can move by expelling the water from the inner cavity to the resulting stream of water.
6.In addition, they can also be used for their activities with the help of water currents in nature.
7.They can also use their tentacles to change the direction of their movements.
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Jellyfish have a high economic value, and its unique nutritional content is that it is very low in fat and rich in protein and inorganic salts. Increasing the breeding of jellyfish has the advantages of low input, quick effect and large income. So what are the characteristics of jellyfish?
1. Jellyfish in the activity area live in the coastal and coastal waters, like to inhabit near the estuary, the water depth of the distribution area is generally 5 20 meters, sometimes up to 40 meters, distributed in China, Japan, the Korean Peninsula and the Russian Far East seas. It is distributed along the coast of China from north to south. 2. The movement of jellyfish, the movement of jellyfish is non-stop day and night, but the swimming speed is slower, and more vertical movements are done.
It has little self-swimming ability and often floats with tides, wind direction, and currents. It is sensitive to light and salinity, generally rising to the surface of the sea in the morning and evening, and sinking in the event of storms, heavy rain or too strong sunlight. 3. The adaptation range to water temperature, jellyfish type 15 34, the optimal water temperature 18 28, slow growth below 18, gradual cessation of food below 15, and the upper limit of lethal water temperature 35; Hydra type 0 15, the optimal water temperature 5 10.
It prefers to inhabit low-light environments with a luminosity of less than 2400 lux. 4. Predation of jellyfish, the tentacles of jellyfish larvae are predatory organs, mainly feeding on small zooplankton, feeding activities around the clock, eating a large amount of food, and growing rapidly.
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Jellyfish, aquatic invertebrates, jellyfish of the genus Jellyfish in the genus Jellyfish of the genus Rootsae. The body shape of the jellyfish is hemispherical, the top is umbrella-shaped, white, by telescopic movement, it is called jellyfish skin, there are eight mouth wrists under it, there are filaments under it, it is gray-red, it is called jellyfish head, the tentacles are milky white, the mouth and wrist are eight, and the lack is split into many petals, which can be eaten and can be used for medicine. It inhabits offshore waters, especially near the mouth of the Xisu River, and is found along the coasts of China, Japan, the Korean Peninsula and the Russian Far East.
Jellyfish usually live alone, floating or swimming, and a very small number of species live in groups, and some groups can live in sedentary groups. The jellyfish-type body is bell-shaped or inverted bowl-shaped, or umbrella-shaped, the outward protruding side is called the outer umbrella surface or the upper umbrella surface, the concave side is called the lower umbrella surface, the ** of the lower umbrella surface has a hanging tube called the vertical lip, the free end of the vertical lip is the mouth, the edge of the umbrella has a circle of tentacles, and the edge of the hook hand jellyfish lower umbrella stretches out a narrow membranous structure inward, called the marginal membrane, which is the characteristic of the polyp jellyfish. Jellyfish in the bowl jellyfish class are borderless membranes.
The body wall structure of the jellyfish type is basically similar to that of the hydra type, which is also composed of two layers of epithelial muscle cells sandwiched between the mesocolloidal layer, but the mesocolloidal layer of the jellyfish type is much more developed than that of the hydroid. The gastric circulation cavity around the body wall is also more developed, it is either a simple sac, or the membrane is divided into 4 gastric pouches, from the gastric pouch to the umbrella edge protrudes 4 (hydra jellyfish) or more (bowl jellyfish) radiation tubes, and is connected with the ring tube parallel to the umbrella edge, and the ring tube can also extend out of the centrifugal tubule into the tentacle, directly to the end of the tentacle. There are sensory organs at the edge of the umbrella or at the base of the tentacles, such as eyespots or balance sacs.
Medicinal value. Indications.
It is suitable for all kinds of fatty liver patients. In particular, patients with tracheitis, asthma, gastric ulcers, rheumatoid arthritis and other diseases, and staff who have more contact with dust often eat jellyfish to ensure their health. It has the ability to clear away heat and phlegm, eliminate stasis and accumulation, soften and dissipate knots, nourish the heart and lungs, nourish yin and flatten the liver, lower blood pressure and remove dampness, quench thirst and sober up wine, stop cough and remove annoyance, and moisten the intestines.
It is mainly used for the treatment of pulmonary fever, cough, phlegm fever, asthma, chyphagia, constipation, gall, scrofula, erysipelas, athlete's foot, goiter, lymph node tuberculosis, and hypertension.
Dosage and usage. Take the jellyfish head and soak it in water for 2 3 days, change the water every day, rinse off the salt alum, remove it, chop it, and dry it for later use. Internal: decoction, 30 60g, or blanched with 80 water or mixed with ginger and vinegar.
External use: appropriate amount, use more sting, apply plaster. 1 2 times a week.
Cook and eat according to personal taste. When eating cold jellyfish, you should put some vinegar appropriately.
Precautions. It can be eaten by the general population, especially suitable for patients with yin deficiency and dry heat, phlegm fever and cough, food accumulation and distension, dry stool, polydipsis after drinking, acute and chronic bronchitis, and hypertension. Those with spleen and stomach deficiency and allergies should avoid eating. Not edible after decay and deterioration.
Jellyfish should not be pickled with white sugar Fresh jellyfish contains more water, the skin is thicker, and it also contains toxins, which is not suitable for consumption, and needs to be salted with edible salt and alum 3 times (commonly known as alum), so that the fresh jellyfish can be dehydrated 3 times before the toxins can be drained with the water.
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Jellyfish, also known as jellyfish, are mainly produced on the southeast coast of China. During August and September each year, jellyfish often float in groups and sometimes run aground on the beach by shocks, where fishermen catch them home. It belongs to the class Bowl Jellyfish and is a type of coelenterate mollusk that lives in the sea, i.e., coelenterates.
Coelenterates do not have special respiratory and excretory organs, because the body is composed of two layers of cells around the gastric circulation cavity, and through the mouth to make the gastric cavity communicate with the outside world, in fact, the two layers of cells on the body wall are in contact with the external environment, so respiration and excretion can be carried out directly and independently by the body wall cells.
There is a certain influence, the presence is reasonable, and soluble solids will have an impact on the quality of the wine.
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