Why can some fish live in hot water?

In 1936, the ship of the French traveler Repp was swept away by the storm and waves on the island of Itupuru. He was tired and hungry, and suddenly noticed a few "dead" fish at the water's edge. Hungry, he quickly picked it up and threw it in the pot to cook.

After boiling for a while, when he lifted the lid of the pot to look, he was surprised that the fish in the pot was not only undercooked, but swam around in the hot water pot. He later learned that it was originally a volcanic crater and that the water temperature reached 63 degrees Celsius. These fish are the "inhabitants" of the volcanic lake.

At that time the fish jumped to shore and they were frozen due to the fact that the temperature of the air was much lower than that of the water. Fish living in hot water have also been found in the heatwave area of the submarine crater. An American research ship accidentally caught three eel-shaped fish near the crater of a volcanic crater 8,500 feet south of California, 120 nautical miles south of California, one of which was caught near the crater heatwave, and because the volcanic fish was caught near 21 degrees north latitude, it was named "21 degrees north latitude volcanic fish".

Volcanic fish is white with pink spots, 8 to 12 inches long, with eyes and small, pointed teeth. Due to the drastic changes in temperature and water pressure, three fish died when they were pulled to the surface. According to the investigation, in a small lake on the British island of Lapps, there lives a six-inch long spindle-shaped fish, with thin scales, a large head, and thick skin, which can swim comfortably in hot water at 65 degrees Celsius.

According to research, the ancestor of this fish was the only survivor of the volcanic eruption in 1932. The reason why they can live in hot lake water is completely forced by the environment. After generations of adaptation, it has become a real hot water fish.

Once they fall into cold water, they will freeze to death.

It may be that the active temperature of enzymes in the body is different from other organisms. Also, you seem to be interested in fish?

Dear will be happy to answer for you, dear, this is mainly determined by the fish's own respiratory organs and breathing patterns. Since the respiratory organs of fish are gills, and water is denser than air, it is only in water that the gill plates, gill filaments, and gill patches of the fish can be fully opened. By increasing the contact area between the gills and the water, the chance of taking up dissolved oxygen in the water increases the chance of obtaining more oxygen.

Once out of the water, the water on the surface of the gill plates is quickly evaporated, and the fish lose the ability to take in oxygen and cannot survive. So, the fish have to live in the water.

Fish can survive in hot water, but they are short-lived because there is not enough oxygen in the hot water.

Fish are the oldest vertebrates. Some offspring of hybrids with different chromosome numbers[1] are still fertile. They inhabit almost every aquatic environment on Earth, from freshwater lakes and rivers to saltwater seas and oceans.

Fishes are ectothermic vertebrates that live in water all year round, breathe with gills, and use fins to support balance and movement of the body. According to the statistics of the late Canadian scholars, there are 24,618 species of fish in the world, accounting for more than half of the named vertebrates, and new species of fish are constantly being discovered, with an average of about 150 species per year, and more than 1,500 species should have increased in more than ten years, and there are currently about 32,100 named fish species in the world. It is the most primitive and lowest-level group in the subphylum Vertebrates.

Fish meat is rich in animal protein and phosphorus, rich in nutrition, delicious, easy to be digested and absorbed by the human body, and has a significant role in the development of human physical strength and intelligence. Other parts of the fish body can be made into cod liver oil, fish gelatin, fish meal, etc. Some fish, such as goldfish and tropical fish, have a variety of bodies and bright colors, and have high ornamental value.

China has a long coastline, many rivers and lakes, and a wide variety of fish. According to the survey, there are more than 1,000 kinds of freshwater fish in China, and the famous "four big fish" (herring, grass carp, silver carp, bighead carp) and carp, crucian carp and so on are the main excellent freshwater fish species in China; There are about 2,000 known species of marine fish in China, and the common ones are hairtail, large yellow croaker, salmon and so on.

Can be a fish that can only live in hot water. On a small island, the French traveler Ann Jean Jif saw four stiff dead fish floating in a small river, and took them back and put them in a pot to be boiled and eaten. Unexpectedly, when the water is about to boil"Dead fish"I was able to swim peacefully in the steaming water.

It turned out to be a volcanic crater, and after the eruption, the nearby lake was turned into a volcanic crater"Hot water"The fish that survived the lake grew up and gradually adapted to the scorching heat of Celsius, and developed the habit of not being afraid of heat and resisting high temperatures. When they swim into the cold river, they freeze and die. When the temperature is right, it comes alive again.

Go to the land of the school. The poems are still the same