Japan often has some natural disasters, even jellyfish (jellyfish) also go there to take advantage of the fire to rob predatory fish caused by flooding, Japanese scientists after tracking and research believe that a large number of jellyfish from China's Yellow Sea and East China Sea, this news seriously shocked Chinese foodies, we feel confused and puzzled, is it that jellyfish are really afraid of us?
Japanese fishermen are killing jellyfish
In 2002, a large-scale jellyfish invasion broke out near The waters of Japan, and the huge Echizen jellyfish caused heavy losses to fishermen. More jellyfish are pulled up by fishing nets than one net, and a large number of fish are eaten by jellyfish, and even those that are not eaten are stung to make it inedible. As a result, the owner of the fishing boat lost the workers' wages, fuel and administrative costs.
Some friends may wonder, why does Japan not eat jellyfish? Isn't it a fortune to catch so many jellyfish, so why lose money? Why can't fish people who are stung by jellyfish eat it?
Jellyfish salvaged from Japanese fishing boat trawls
On our table, we often see a dish with a unique flavor and super refreshing taste: cold jellyfish, and the predecessor of the jellyfish is the famous jellyfish that can kill people, we all know that insects such as horse bees and scorpions rely on tail stings to achieve their offensive goals, and the same is true of jellyfish, which will release a large amount of toxins after encountering predators or prey in the sea.
Jellyfish clusters
The stock of jellyfish in the ocean is hundreds of times the number of animals as a whole, as long as it is almost ubiquitous in the ocean. Jellyfish are extremely viable, whether in the icy Antarctica or in hot tropical seas, from the extremely cruel undersea volcanic eruptions to the 10,000-meter-deep Mariana Trench.
Some friends may take the opportunity to wonder, since the quantity is so large, why are the raw materials for jellyfish food on the market in China so expensive? Fine jellyfish heads sell for 50-80 yuan, while cheap jellyfish skins cost a few bucks. This problem will seep out in the following content.
The most typical echizen jellyfish are mainly distributed in the Yellow Sea and the East China Sea and parts of Japan in China, with a body size of more than an adult, and a maximum weight of more than 200 kilograms, which is the best raw material for making edible jellyfish. Because jellyfish have more than 99% cellular composition of water, despite their huge economic value, the high cost of production and the extremely low yield of finished products are the main reasons for the high price of jellyfish ingredients, because jellyfish contain toxins that cannot be eaten directly, so fishermen hate jellyfish to the bone. Scientists estimate that the number of Echizen jellyfish living on Earth is more than three times that of humans, about 20 billion or so, posing a huge threat to humans and other marine animals.
Jellyfish have lived on Earth for at least 600 million years, evolving about 30,000 species of jellyfish, of which more than 70 species can kill people, most of which are highly toxic but do not kill people. The reproductive ability of jellyfish makes almost all aquatic animals lament that in the case of Echizen jellyfish, males can excrete billions of sperm at once, while females ovulate millions at once, and once mating is successful, it means that millions of small jellyfish are born.
Jellyfish have no brain and complex nervous system, no bones, the heart is one of the most primitive prehistoric animals on the earth, this animal is like from time and space outside the earth, with a colorful and fascinating fantasy appearance, in the water to the outside world to express an elegant and romantic atmosphere, they like to eat fish and shrimp or plankton aquatic creatures. After the destruction of marine ecology, jellyfish's status in the food chain is like a superfluous chain, and as the number of natural enemies decreases, they will multiply and encroach on the corners of the ocean.
Jellyfish is a miracle in the evolution of the earth's primitive organisms, although there are many types, but most of the physical and physiological characteristics are basically the same, are round figures dragging tentacles, prey hunting and digestive mechanisms are also the same. Most people think that jellyfish have no eyes, only rely on the ability to perceive the appearance to survive, but according to the laboratory research of scientists box jellyfish found that jellyfish eyes are as complex as human eyes, not only have the ability to recognize color, but more importantly, have a set of 24 advanced eyeballs, it is unbelievable that the eyes have pupils, crystals and retinas, unfortunately there is no ability to process images. This ancient primitive inferior animal had such delicate eyes that scientists had to be fascinated by it.
Box-shaped jellyfish eyes
Each tentacle of the box jellyfish contains millions of miniature telescopic fork spines, known as "spiny cells", which emit toxins as soon as the prey touches the tentacles, such a powerful offensive ability that is almost unmatched by any animal. How do the toxins of box jellyfish enter the human body or prey and cause lesions? Scientists under the microscope watched the scene when jellyfish toxin and human blood met, the scene of venom attacking blood cells was comparable to a large area, once the red blood cells came into contact with the venom, they immediately swelled and exploded, the pathological blisters of the skin appeared, the nervous system was paralyzed and closed, causing the heart to stop beating, and there was also a very strange ability to lock the nerve contact unit to cause persistent pain, which made scientists feel incredible.
Scientists have made a major discovery in the study, found that jellyfish poison is a mixed action of the toxin, this toxin brings together the poisonous snakes, poisonous spiders, scorpions and other poisonous insects of the venom damage function, by jellyfish sting using a single antivenom has no effect at all, that is to say, there is no effective drug to resist.
Jellyfish stings often occur near australia's Great Barrier Reef, and near the Great Barrier Reef lives a group of Irucongi original tribesmen, who call this jellyfish sting as God's punishment for people, and later scientists call jellyfish stings as Irukongi syndrome. 2002 American tourist Rob. Kim was stung by a box jellyfish as small as a few grams in size, died after 2 weeks because there was no effective anti-venom serum, and is currently considered the most toxic jellyfish in the world.
With regard to Irukongi syndrome, it has been confirmed that there are 6 species of jellyfish that can cause such poisoning symptoms, which are distributed in many parts of the world, from the Pacific Ocean to the Indian Ocean and the Atlantic Ocean and even the poles. The U.S. Marine Corps frogmen train in Florida waters, frogmen have professional protective equipment in the water, but only a small part of the face is exposed, that is, this very small part of the bare skin is stung by tiny jellyfish, at first it is only a slight sting, after a few minutes I feel a strong tingling and headache, muscle spasms and breathing difficulties, because there is no effective means of coping and finally can not be solved.
Japanese scientists have conducted a lot of research on jellyfish, and installed GPS locators on large jellyfish underwater to facilitate real-time grasp of jellyfish movements, predict the time and path of their large number of intrusions, and quickly start preventive emergency strategies in time to facilitate timely disaster elimination. Fishermen destroy and kill all the jellyfish they catch, then throw the pieces into the sea. The Japanese government has developed a well-thought-out jellyfish disaster prevention mechanism and has invested heavily in research.
Install GPS positioning for jellyfish
Later, Japanese scientists found that when the jellyfish that were crushed into the sea, they triggered the reproductive protection function of jellyfish, and all the fertilized eggs in the body were discharged into the sea, which not only did not control the flooding of jellyfish, but increased the reproductive ability of jellyfish. In the end, I had to change the response plan and try to catch jellyfish ashore and spend a lot of money to process the ingredients.
Why is there a flood of jellyfish invasions? Scientists around the world are actively studying the causes of jellyfish suddenly floating in deep water and accumulating into disasters, almost unanimously believe that it is caused by ecological changes in the ocean, usually jellyfish mostly live in deep water, the current excessive economic exploitation of human beings has caused serious damage to the marine ecology, a large number of fish resources have led to the survival of jellyfish is threatened, they began to appear in the wrong place.
Japanese scientists have come to a controversial conclusion about the flooding of Echizen jellyfish, arguing that the life of Echizen jellyfish is based on the Yellow Sea and east China Sea in China, because China's economic development and environmental pollution have caused a large number of jellyfish to run to Japanese waters, so that Japanese fishermen can bear the disaster that they should not bear.
Whether the conclusions of Japanese scientists are reasonable, I still have something to say, I have no opinion on Whether Echizen jellyfish originate in Chinese waters, because it is a high-quality dish specially prepared for our people. If I want to say that it is caused by China's economic development and environmental pollution, I am opposed to this, but does not Japan engage in economic development and fishing? Are Japan's nuclear power plants and industrial pollution not serious enough? Do jellyfish have a vendetta against Japanese fishermen or are they familiar with Japan's sea routes? Why not go to Korea or Vietnam instead of Japan?
What do friends think? Welcome high people to make suggestions!
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