Who knows the scientific basis for carp jumping over the dragon gate?

1. When talking about carp, people will think of the Yellow River carp, one of the four famous fishes in ancient my country, as well as the famous ornamental fish-red carp, mirror carp, and many cultivated species. Carp is one of the freshwater fish with the largest variety, widest distribution, longest breeding history and highest yield.

Carp, commonly known as carp, maozi, etc., belongs to the carp family. The sides of the body are flat and the abdomen is round. The mouth is horseshoe-shaped and has 2 pairs of barbels. The base of the dorsal fin is longer, and both the dorsal and anal fins have a thick, serrated spine. The sides of the body are golden yellow, and the lower leaves of the tail fin are orange-red. Carp usually inhabit the bottom of water bodies covered with aquatic plants in rivers, lakes, reservoirs, and ponds, and feed mainly on benthic animals. It has strong adaptability, resistance to cold, alkali and hypoxia. The reproductive season changes with different growing areas. It is March in the Pearl River, April-May in the Yangtze River, and spawning only begins in June in the Northeast. Eggs can be laid in running water or still water. The egg-laying places are mostly in aquatic plants. The eggs adhere to the aquatic plants and develop.

Carp is the earliest cultured fish in the world. Carp farming began in ponds as early as the Yin and Shang Dynasties in the 12th century BC. According to the Book of Songs, King Wen of Zhou dug a pond to raise carps. During the Spring and Autumn Period and the Warring States Period, Fan Cun, an official of the Yue State, strongly advocated the development of carp farming in ponds. He believed: "If you raise carp in ponds for three years, the profits can be worth tens of millions to the Yue State." In ancient China, there was a folk saying that "raising fish and growing bamboo will make a thousand times more profit" proverb. During the Zhou Dynasty, carp had become one of the most valuable foods. King Xuan of Zhou won the battle against the lynx, and specially prepared a banquet for the princes with "carps with turtle faces". There is also a sentence in "The Book of Songs" that says, "If you don't eat fish, you will eat carp in the river." According to legend, when Confucius gave birth to a son, Duke Zhao of Lu gave Confucius a carp. Confucius was grateful for the gift from the monarch and named his son Li, with the courtesy name Boyu. Mencius once said: "I want fish, and I want bear's paws, but I cannot have both." Tao Hongjing of the Liang Dynasty believed that carp "is the strength of all fishes and the flavor of food." By the Han Dynasty more than 2200 years ago, raising carp in ponds had become very popular. Everyone from the royal family to landlords were engaged in carp raising, and it gradually developed from self-sufficiency to commercial production. In the Tang Dynasty, the emperor's surname was Li, and "carp" was the same as "李", so the carp jumped onto the dragon gate and became a symbol of the royal family. The talismans used by the imperial court were also carved in the shape of carps. The emperor gave carp-shaped fish to ministers to show his honor. Therefore, "raising carp", "catching carp", "selling carp" and "eating carp" have become the biggest taboos of the royal family, and violators will be severely punished. During the 300 years of the Tang Dynasty, fish farmers had to find other breeding targets and gradually discovered the most ideal fish for breeding-the "four major fish": green, grass, chain, and bighead carp. After the Tang Dynasty, although carp farming was resumed, carp could only play a supporting role due to its slow growth.

For more than two thousand years, carp has been regarded as a top-quality fish. In the early Hongwu years of the Ming Dynasty, the poet Yang Ji wrote in his poem: "The spring breeze blows and the rain wets my clothes and skirts, and the green water and red makeup are not as good as the green water, but I am a girl from the Hanyang River, crossing the river to buy Wuchang fish." "Jiangxia County Chronicle" during the Tongzhi period of the Qing Dynasty Records: The carp produced by Wuchang Huangge Alumitou "has a unique and delicious taste. After the beginning of winter, picklers rush to buy it. Other provinces call it Chu fish." There is a proverb in the Huanghuai area that "there is no feast without old carp." The ancients also used carp as a substitute for letters. In the Ancient Yuefu's "Drinking Horses in the Great Wall Cave", there is: "A guest came from afar and left me a pair of carp; I asked the boy to cook the carp, and there was a ruler-type script in it." It is still preserved among the people today. It is a custom to visit relatives and friends and give them carp during festivals. Carp is a symbol of hard work, kindness, perseverance and good luck. There are many New Year pictures that use carp as a symbol of good luck. The stories of "Carp Jumping over the Dragon Gate" and "Chasing the Fish" are even more popular among the people.

It is said that in the Yuan Dynasty, with the increasingly close commercial exchanges between China and Central Asian countries, Persians brought carp back to Persia from China. In 1150, carp was brought from Persia to Austria during the European Crusades, and then gradually spread to Western Europe.

It was introduced to Hungary in 1367; it was introduced to England in 1496; it was introduced to Prussia in 1560, and then to Sweden (it was moved to Russia in 1729); it was introduced to the United States from Europe in 1830. Today, carp has become a world-wide farmed fish

It is said that carp as an ornamental fish began when Emperor Shenzong raised red carp in the imperial garden during the Wanli period of the Ming Dynasty. When he came to his hometown, the emperor specially rewarded him with a red carp and asked him to take it back to his hometown to raise it. This fish is shaped like a purse, so it is called "purse red carp". It is a specialty of Jiangxi Xingguo red carp and the mirror carp cultivated in many places. A cultivated carp species. The red carp was introduced to Japan in the early days. After World War II, it was renamed "koi" and was used as an ornamental fish by the royal family, nobles and dignitaries. It was also called the "sacred fish" because it was raised in temples and shrines. , symbolizing good luck and happiness. The Japanese regard koi as a work of art, known as the "living gem" in the water, and have cultivated precious varieties with high ornamental value such as yellow spots, Taisho three colors, and Showa three colors. < /p>

In addition to being eaten, carp can also be used as medicine to treat diseases. It has the effects of opening the spleen and strengthening the stomach, promoting urination, eliminating edema, relieving coughs and asthma, and making milk. The meat can treat portal cirrhosis, chronic nephritis, and coughs. , asthma, maternal lactation, irregular menstruation or bleeding in women; blood can cure mouth and eye deviation; bile can cure red eyes, painful swelling and suppurative otitis media.

Carp are widely distributed throughout the country. There are many species in various places with different shapes, but they are actually the same species. However, there are 15 regional species living in the southwest region, including 11 species in Yunnan lakes, 2 species in Xijiang, Guangxi, 1 species in Qinjiang and Hainan, Guangxi, Planted in Qionghai, Sichuan.

In recent years, with the rapid development of bioengineering technology, especially the birth of fast-growing genetically modified carp, the growth rate of carp has increased by more than 140%, and the taste is more delicious. The commercialization of genetically modified carp will open up broader prospects for carp breeding. Habits and feeding habits of carp

Carp has 2 pairs of barbels, 3 rows of pharyngeal teeth, 15 to 22 gill rakers, and its dorsal and anal fins have thick, serrated spines. It is an omnivorous fish and likes to eat benthic food. It is an aquatic creature that grows very fast, and the largest individual can reach tens of kilograms.

Carp has a wide distribution range. It can be found everywhere in natural waters such as lakes and reservoirs and in domestic fish ponds. It is the most productive freshwater fish species and is also the main target fish for fishing. Carp is an omnivorous fish and eats both meat and vegetables, but it tends to eat small grass fish and shrimps, red worms, earthworms, white worms (maggots) vegetarian bait, rice grains, red yarrow, millet, wheat bran, and rapeseed cakes. and other plant fruits and seeds. Carp's food habits also have certain seasonality. It will temporarily change its food habits with changes in air temperature and water temperature, and has obvious selectivity for food. In summer, carp like to dig out the organic matter in the mud and eat it. This behavior of digging in the mud and eating is commonly called "sand hunting" by fishing friends.

Carp likes living water and likes to stay at the water inlets and outlets in ponds and lakes. It has an obvious habit of swimming upstream against the current. He often jumps out of the water in still water, likes to chase waves, and likes to hide in places with turbid water. He has strong resistance to high temperatures, salty water, and low oxygen. He has a prominent habit of avoiding strong light and preferring weak light. Therefore, he likes to hide in places without water. It is easy to catch in low-light weather and rainy days. In addition, after carp takes the bait, there is a more special means of escape. After fishing in the water, you will use the method of "pile driving" to avoid disaster. It has strong reproductive ability, lays a high number of eggs, and can mate and reproduce multiple times a year. It eats less during breeding and increases after spawning. Therefore, it is easier to catch during the Beginning of Summer every year.

Carp likes fragrance and sweetness, followed by sourness. Therefore, when fishing with bomb bait using a throwing pole, when making bad food, the preparation can be based on the above principles. The basic material of bad food can be wheat. It is made of a mixture of bran, rapeseed cake, rice, millet, etc. When fishing with string hooks, meat bait can be used, such as shrimps, earthworms, snail meat, crickets, white worms, etc.

Fishing spots: As the saying goes, "spring crucian carp and summer carp", summer is the golden season for carp fishing. Fishing spots should be selected according to the habits of carp. The preferred fishing spots are dams in natural waters such as lakes and reservoirs. , the water inlet and outlet, Lazitou, and the deep water area downstream of the river. In autumn, you can choose reservoirs in slow-flowing areas with migratory water, and the bay branches of lakes. Choosing these waters as fishing spots will give you ideal fishing results. Carp is an omnivorous fish. It has become one of the fish species that fishermen like to catch because of its wide feeding habits and large size.

Carp is a benthic omnivorous fish that eats both meat and vegetables. It has a wide bait spectrum and a well-developed snout bone, and it often digs into the mud to feed. Carp is a low-temperature animal, and its body temperature changes with changes in water temperature. It does not need to consume energy to maintain a constant body temperature, so the total amount of bait required is not large. At the same time, carp, like most freshwater fish, is a stomachless species with a short and slender intestine and a fast metabolism, so its feeding habit is to eat less and more frequently. The digestive function of carp is closely related to water temperature, and the seasonality of feeding is very strong. In winter (especially under ice), the body is basically in a semi-dormant state of food-stopping. The body's fat is depleted throughout the winter. When spring arrives, it is eager to eat high-protein foods to replenish it. In late autumn, as winter approaches, in order to accumulate fat, there will also be a peak period of "catching food", and high-protein bait will also be the main food. So early spring. When fishing carp in late autumn, animal baits such as earthworms and river shrimps should be used mainly. After spring, as the temperature rises, the food intake of fish becomes larger. The quality of bait is no longer important, and quantity rises to the first place. Therefore, for a long period of time in late spring, throughout summer, and early autumn, carp are mainly vegetarian. When fishing at this time, flour bait, bad food, etc. should be used.

Although carp is a bottom-dwelling fish, this does not mean that its activity area remains unchanged. Seasonal changes, water temperature cold and warm. Wind direction, air pressure, synodic changes, water quality, water flow size, water level fluctuations, dissolved oxygen in the water, bait environment, etc., will all change the activity areas of fish at any time, causing them to often move to a larger position. In larger waters, this is called "migration". Compared with other freshwater fish, carp has both similar and special habits. These habits are mainly determined by the needs for reproduction, feeding needs, and aerobic survival needs.< /p>

Weedy habits: Water areas where various aquatic plants and aquatic plants thrive. It is also a place where various plankton and benthic organisms thrive. Fish can get abundant food here. Fish are also found in areas with lush aquatic plants. It is an excellent ovulation and spawning bed. During the breeding season every spring, this kind of place is a gathering place for fish.

Top flow habit A pond often has streams or canals filled with water, which not only provides water for the pond. The fish bring a lot of fresh bait, and the dissolved oxygen in and out of the water is high, making it an ideal place for fish to feed and take in oxygen. This is the saying goes: "Flags with the wind, fish with the top of the water."

Ponds with wide water areas have a habit of following waves. On windy days, the water surface often stirs up large waves. The wind waves push surface plankton and other food to accumulate in the downwind outlet, and these baits are driven in by the waves. In the water, this area becomes a natural feeding ground for fish. Where there are waves, the dissolved oxygen in the water must be high (this is the same as the aerator in high-density fish ponds). The fish have developed the habit of following the waves and going downwind.

Warming habits When the natural water temperature is low, it is obvious that all kinds of fish like to move to sunny waters for food, and rarely move to the side of large shady slopes and water areas with heavy shade. Nor will they stay still for long periods of time in deep water with lower water temperatures. In early spring and late autumn, shallow water facing the sun is warmer during the day under the sunshine, and fish like to swim here to look for food. The temperature difference between morning and evening is large, and the water temperature in shallow water also drops rapidly and greatly, so fish usually shrink to the relatively warm deep water areas of the water body. As the water surface temperature rises and falls during the day and night, fish will float and sink during the day and night. On the contrary, in the high temperature season of summer, the shallow water areas are cool and pleasant in the morning, evening and night, and fish like to flock there. As the air temperature and water temperature rise during the day, fish gradually move to deeper water. At noon in midsummer when the sun is blazing and the heat is unbearable, fish usually stay motionless in the deepest part of the pond. If you follow the above rules to "find fish", you can basically find their traces.

Social habits: Except for catfish and snakehead fish, most fish like to live in groups. Idioms such as "fishing in a row" and "crucian carp crossing the river" illustrate this habit. The same is true for carp. This aspect is determined by the same feeding habits and living habits. In addition, fish move in groups because of their nature and instinct to avoid predators.

Aerobic and quiescent habits The oxygen content of natural water bodies generally averages 8-12 mg per liter. When it drops to less than 1 mg, it will cause most fish to stop feeding, "float their heads", and even die. Crucian carp, catfish, etc. have relatively strong ability to tolerate hypoxia, but carp cannot. Generally, the dissolved oxygen level is required to be above 5 mg per liter. Oxygen in water comes from the photosynthesis of aquatic plants and from the air above the water surface. When there is no wind, the dissolved oxygen is slow, but when the waves are large, the dissolved oxygen situation is good. Wherever there is a lack of oxygen, fish will be very sensitive to move to waters with high oxygen content. This is the main reason why fish like grass, currents, waves and shoals. Before the thunderstorm, the air pressure is low and the weather is stuffy, so the fish will not bite the hook; when the heavy rain stops and the sky clears up, the fish will "bite like crazy"; in the upwind stagnant water area, the fish do not like to bite, but in the downwind area, the waves are surging, and the fish are very active; in the fat pond, such as With fresh water from outside entering the population, it is a golden zone for fishing. …?All these phenomena illustrate the same truth: fish flock to places with high dissolved oxygen. In addition, tranquility is also one of the obvious characteristics of fish, and carp is no exception. Fish have well-developed hearing and are extremely sensitive to sounds, especially sudden and unfamiliar high-intensity sounds. After hearing them, they quickly move away from the sound source. Of course, fish avoidance of sound is only generally speaking. They are not afraid of certain natural sounds - such as the sound of waterfalls, wind waves, running water, rice washing and vegetable washing, insects falling into the water, etc., but they like it very much. If it is a high-density intensive pond, the sound of throwing pellet feed will even cause fish to flock together.

The story of the carp leaping over the dragon gate:

There is a large group of golden-backed carp, white-bellied carp, and gray-eyed carp in the East China Sea. I heard that King Yu wants to select the most romantic and beautiful people who can leap over the dragon gate. To protect the dragon gate, they gathered in groups and went upstream along the Yellow River.

Before they saw the shadow of Longmen, the gray carp were knocked dizzy by the sand in the Yellow River. They turned around, swam down the river, and swam back to the Yellow Sea effortlessly. Unfortunately, I encountered a fish, turtle, and sea monster with its mouth wide open, and I was in mourning.

But the golden-backed carp and the white-bellied carp formed a long snake formation, taking turns to move forward, facing the wind and waves, traveling day and night, and finally swam to the foot of the dragon gate. They put their heads out of the water and looked up at the dragon gate: on both sides of the magical dragon gate, there were two thick white marble pillars. The jade pillars are carved with vivid stone dragons. The dragon's body is wrapped around the jade pillar, spiraling up to the top of the Baizhang pillar. The water waves in the dragon gate are surging into the sky, and the silvery water droplets splash onto the faucet's head - just like a strange colorful picture of "two dragons playing with a pearl". The background is the blue sky and white clouds, which reflect the stone carvings on both sides of the dragon gate: "Long, long, long, and long, the dynasty is the dynasty." This scenery is better than Penglai Wonderland.

After seeing the beautiful scenery, the carps signed up to take the exam to King Yu. King Yu was overjoyed when he saw it and said: "Fish and dragon are of the same species. If they leap onto the dragon gate, they will become dragons." Upon hearing this, the carps immediately puffed up their gills and shook their tails, leaping upward with all their strength. Unexpectedly, as soon as I jumped out of the water, which was more than a foot high, I fell down and landed on the water, causing constant pain. But they are not discouraged, but work hard day and night to practice tail-wrestling and jumping. I practiced like this for seventy-seven forty-nine days, and I was able to leap seventy-seven forty-nine feet high in one go. But there is still a long way to go before he can leap up to the hundred-foot dragon gate.

When Dayu saw that the carps were willing to practice hard, he enlightened them and said: "What a big group of fish!" A golden-backed carp understood Yu's words and learned about the group of fish. Said: "King Yu said: 'What a big group of fish', didn't it inspire us to work together and leap to the dragon gate?" The group of fish shouted in unison: "Thank you, King Yu!"

The carps shook their heads and tails happily. The fish stared, bulged its gills, and hit the water with its tail. The sound of "fat fat" hitting the water continued one after another. He jumped seventy-seven and forty-nine feet into the air. He took a breather and jumped seventy-seven and forty-nine feet into the air. Only two feet away, King Yu fanned a breeze with his hand, which made the fish jump. One by one, the fish jumped onto the dragon gate that they yearned for day and night.

But it was said that there was a golden-backed carp that summoned air for all the fish to cushion their bodies. He followed his companions and jumped onto the dragon gate, but he remained at the foot of the dragon gate. It thought: Why don't I use the power of water to jump up to the dragon's gate.

It happened that the water of the Yellow River was rushing against the huge rocks in the middle of the Longmen River. The waves splashed dozens of feet high. The golden-backed carp suddenly jumped out of the water, jumped onto the top of the wave, and slammed the top of the wave with its tail. The fish jumped into the air. , unexpectedly jumped into the blue sky and white clouds. Suddenly it landed lightly on the dragon gate, like a dragon descending from heaven. When Dayu saw it, he was filled with admiration, and then he lit red on the head of the golden-backed carp. In an instant, the fish and dragon changed. The golden-backed carp turned into an auspicious object, a golden dragon. Dayu ordered the golden dragon to lead the carps to guard the dragon gate. According to the legend of the strange old man, in the past, if people fishing in the Yellow River caught a carp with a red top, they would immediately put it back into the Yellow River. This is where the practice of dotting names in red comes from the school admissions list.

Since ancient times, there were many scholars in Hancheng, so they "promoted young children to become officials", which is likened to "fish leaping over the dragon's gate". "Longmen Academy" was also established in Hancheng City. There is a brick carving of "Fish Leaping over the Dragon Gate" on the screen wall of the gate of the Confucian Temple.

The gorge is also known as the Miao Gorge. Two majestic and majestic Phoenix Mountains, holding up the water to the sky, stand between the rivers. The fascinating carp jumping over the dragon gate is vivid and majestic. Entering the canyon, you will see two mountains standing side by side, cliffs stacked on top of each other, towering cliffs, and peaks piercing the sky; strange rock flowers bloom along the walls, decorating the canyon like a fairyland. This magical and wonderful canyon has a beautiful and moving story.

A long time ago, the villagers along the Longxi River, men farming and women weaving, lived a happy life in peace and contentment. One year, a big yellow evil dragon flew from nowhere and did many evil things. It either summons wind and rain to destroy crops, or blows out mist and harms living beings, making the entire canyon a mess and causing no peace. Every year on its birthday, June 6, people are forced to offer a pair of boys and girls, ten big oxen, a hundred pigs, sheep and other things for it to enjoy. If not, it will get angry and do evil, open its bloody mouth, rush into the village to devour people and animals, destroy the countryside, and cause the people of Ninghe to complain and complain.

In Longxi Town, Xiakou, there lived a smart and beautiful girl named Yu Gu. She was determined to get rid of this evil dragon. Several times, she went to Yuntai Temple to look for Yuntai Fairy for help, but she couldn't find her. She was not discouraged and continued to search. Early that morning, she climbed up to the Yuntai Temple. The fairy was moved by Yugu's sincere and determined spirit. He appeared in front of her and pointed out to her: "There is a carp cave thousands of miles away from here. You can go there." Meet the Carp Fairy, she will definitely be able to help you."

Gu Gu said goodbye to the Yuntai Fairy, traveled through mountains and rivers, and went through all kinds of hardships to arrive at the Carp Cave, where she found the Carp Fairy and explained her purpose. The Carp Fairy said to Aunt Yu: "You want to eliminate harm for the people. This is a good thing, but you have to sacrifice yourself! Can you do this?" Aunt Yu said without hesitation: "As long as you eliminate harm for the folks, I am willing to destroy that evil dragon, even if I have to go up the mountain of swords, go down into the sea of ??fire, and be shattered into pieces!" Seeing Yu Gu's sincerity and determination, Fairy Carp nodded with great satisfaction, and sprayed three mouthfuls of white spring at Yu Gu, and she suddenly turned into a fairy. A beautiful and strong red carp.

The little red carp swam up the river, and after seventy-seven forty-nine days, swam back to its hometown. It was the early morning of June 6th. She transformed into her original appearance and saw that the villagers were ready: a pair of boys and girls, ten big oxen, and a hundred fat sheep and pigs. People beat gongs and drums, like a long dragon walking towards the mouth of the gorge where Huanglong is worshipped. The pair of boys and girls in front of them, dressed in red clothes and red skirts, had already burst into tears.

Huang Long was already salivating when he saw the delicacies brought to him by the people, and he opened his mouth proudly. Just when the fishing was about to happen, Yugu stepped forward first, stopped the fellow villagers and said, "Everyone wait here for a while, let me go and deal with this harmful person." Just after saying this, I saw Yugu He jumped into the water and instantly turned into a big red carp, leaping in the air and rushing straight into the dragon's mouth. It rushed into its belly, stabbing here and there, smashing the dragon's internal organs to pieces. The dragon struggled desperately, He rolled all over, but to no avail, and was finally killed by Yu Gu. However, Yugu herself was buried in the belly of the yellow dragon.

Since then, the people of Ninghe have lived and worked in peace and contentment. In order to commemorate Yu Gu's efforts to eliminate harm to the people, people built a carp temple on the hillside of the gorge. To this day, the story of the carp jumping over the dragon gate is still widely circulated in the Ninghe area.

Carp is also called carp, Yellow River carp, etc., and there are many kinds. The body shape is spindle-shaped, with flat sides, a long and hard snout; the eyes have large scales and two pairs of whiskers; the lower part of the caudal fin is red, both sides of the body are almost golden yellow, and the back fins are hard and slightly black. It is one of the large freshwater fish species. It has a wide distribution range and can be found everywhere in rivers, lakes, reservoirs, ditches and ponds. It is the most productive species among freshwater fish in my country and is also the main target for fishing.

(1) It is a bottom fish. It inhabits the soft bottom of waters and places with dense aquatic plants, and likes to look for food in the mud layer with humus. When the weather is calm in the morning and evening, they often swim in the shallow waters of the shore to look for food.

(2) Food habits are mixed, eating both meat and vegetables, with meat as the mainstay. Juvenile fish mainly eat plankton, while adult fish eat benthic animals as their main food. Small fish, shrimps, red worms, worms, snail meat, water worms and algae fruits are all its delicacies. They especially like to eat red earthworms and potatoes, and are especially interested in scented sweet flour bait. As the climate and water temperature change, their feeding taste will also change, sometimes with obvious selectivity. Carp's snout is long, strong and highly stretchable. When eating bait, it often digs through the mud and digs holes, a bit like a pig burrowing its food, and then bubbles appear. After the fish pond is pumped and dried up, you can see countless circular pits and holes at the bottom of the pond and on the shore, which are caused by carp.

(3) Likes weak light and living water.

Carp like to live in waters with darker brown water color and lower transparency, and are more active on cloudy days than on sunny days. They especially like to swim and forage at the mouth of water where new water is injected.

(4) Alert and smart. Carp is much smarter and more alert than other fish, and is known as the "Ji Zi Carp". After the carp is caught, in order to avoid the "disaster of extinction", it will use all its strength to fight against people. Such as "driving piles" without moving in place under the water. Hide in obstacles or bushes, etc., and sometimes even create some illusion to confuse you. Carp are timid and will flee immediately at the slightest sign of movement.

(5) Fast growth, long life, and large size. The fish can grow to 250~800 grams in the current year (referring to artificial feeding), and the weight of the third-year-old fish can reach 2,000 grams. In rivers, lakes and large and medium-sized reservoirs, there are many large carp weighing more than 20 to 30 kilograms. Carp has a relatively long lifespan, and can live forty or fifty years in its lifetime. It is known as the "longevity star" among fish.

(6) Food intake is closely related to water temperature. Water temperature is a key factor in determining carp’s appetite. When the water temperature is 20°C to 25°C, people have the strongest appetite, eat continuously from morning to night, and have the highest hooking rate; when the water temperature is lower than 10°C, the activity level is very small, and they basically do not eat; when the water temperature is below 2°C, they hide in It overwinters in deep water and cannot eat without food.

(7) It is active by nature, wanders around in search of food, and has the habit of swimming upstream. You can't stay in one place for long, love jumps out of the water. Although carp is active, it is relatively solitary and not very gregarious. Big carp like to move alone.

(8) It has strong adaptability and can withstand cold, alkali and hypoxia. It has low requirements on water bodies and can live in various water bodies. As long as the water bodies are not polluted, it can survive.

(9) Strong fecundity. Carp begin to lay eggs at the age of two winters, and the number of eggs they lay is large. In northern my country, every year from early to mid-May (earlier in areas south of the Yangtze River), male and female carps chase each other and swim to shallow water areas on the shore where there are sparse aquatic plants (if there are no aquatic plants, they will find secluded areas on the shore) to mate and lay eggs. , the eggs are attached to aquatic plants or other objects to develop and hatch into juvenile fish. Carp do not eat during the mating period, but their food intake increases greatly after spawning. Every year at the turn of spring and summer, midsummer and early autumn, food intake is the largest, followed by early spring and late autumn. Carp can still be caught in the south in winter, but it is quite difficult in the north.

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