The Yangtze River s endemic species, the white sturgeon, was officially declared extinct. What cause

The endemic species of the Yangtze River, the white sturgeon, was officially declared extinct, and the last time the white sturgeon was seen was in 2003, located in the Nanxi section of the Yangtze River in Yibin. There are three reasons why the species is dying out.

The first is illegal fishing, the second is the construction of dams, which cut off the migration routes of white sturgeon, and the third is the illegal mining of sand and gravel, and the destruction of the ecological environment, which has caused a large area of their habitat to shrink.

The earth is not only home to us, but also to all animals and plants. After we humans became the masters of the earth, many animals and plants were slowly dying out under the influence of human activities. The extinction of the white sturgeon not only makes us regret, but also gives us a wake-up call and a reminder.

Our human activities are all over the world, and the white sturgeon mainly lives in the Yangtze River, and human beings have fished it vigorously for the sake of its delicacy and the production of caviar, and the population of each white sturgeon caught will decrease by one.

In addition to man-made fishing, sand and gravel mining on the Yangtze River and the construction of dams will also affect its survival. Illegal overmining of sand and gravel can both harm them and destroy their habitat. The construction of barrage dams will also block the migration of white sturgeon.

Although there are fishing lanes, fish are different from humans and do not migrate according to human wishes.

Human activities have had a significant impact on their habitats, and the drastic reduction of habitat will also lead to further declines in the white sturgeon population. In addition, the water quality of the Yangtze River has been damaged, and the sewage discharge of surrounding cities and enterprises along the river is not standardized, and the river water is polluted, which will also have a great impact on the life of white sturgeon.

The extinction of the white sturgeon is heart-wrenching, and there are many reasons for its extinction, and not a single cause can make it extinct. The extinction of species has an important impact on the ecological environment, and this impact may be slowly eliminated or may continue to expand.

Protecting the ecological environment is to protect our human home and future, from flies and mosquitoes to whales and sharks, all of which are indispensable members of the ecological environment.

It's because the whole ecological and environmental protection is not in place, and there are too many destruction and illegal captures of many of these wild species.

It is the worse environment that has caused this tragedy, and it is all kinds of human behavior, such as throwing things into the sea.

The construction of dams has cut off the migration routes of white sturgeon, illegal sand and gravel mining, and ecological damage, resulting in a large reduction in their habitat.

The first is illegal fishing, which humans used to catch in large quantities for economic gainYangtze white sturgeon, and at this time the state has not issued a clearRestraining Orders

Yangtze River Basin. The phenomenon of large-scale fishing by the surrounding residents is one of the direct causes of the extinction of wild white sturgeon.

The second is habitat loss, with dams built in the Yangtze River basin blocking their migration routes, unsustainable sand and gravel mining destroying their spawning grounds, and habitat loss.

There is less hope for the resurrection of the Yangtze sturgeon. The reason for the extinction of the white sturgeon is that it is no longer adapted to today's environment.

The white sturgeon, an ancient species that has survived for more than 100 million years, prefers a cooler environment, and has become extinct due to environmental changes caused by human activities and other factors.

Overhunting by early humans was an important reason for the extinction of the Yangtze sturgeon. In the past, people prioritized food. The Yangtze white sturgeon is deeply loved by consumers because of its large size and delicious taste.

Many local fishermen cater to these consumers in order to survive. , had to catch the Yangtze River white sturgeon.

The reason for the extinction of the Yangtze white sturgeon is because of environmental pollution and poor water quality.

It may be that the environment changes too much, which affects the survival of marine life, and eventually leads to the extinction of species.

Seeing such a sad news, the Yangtze white sturgeon has officially become extinct, and the reason for the extinction is that the white sturgeon can no longer live in the Yangtze River due to the increasing environmental changes, so that the last white sturgeon dies.

The white sturgeon has lived on the earth for 150 million years, and is known as the king of freshwater fish in China, but eventually became extinct due to harsh changes in the environment. According to the International Union for Conservation of Nature, 26 species of sturgeon are in danger of extinction. The Yangtze River's endemic species of the white sturgeon has become extinct, as far as this news is concerned, it has aroused widespread concern in various societies, because the white sturgeon is the best partner of human beings, and it is also the most spiritual creature in the Yangtze River, and now because of the deterioration of the environment, the white sturgeon can not survive in the Yangtze River, and the last one has died.

Because of the deterioration of the environment, the white sturgeon became extinct

As we all know, China's development is very rapid, but the country's development at the same time of environmental pollution is also very large, and there are some enterprises for their own convenience to discharge some sewage into the Yangtze River, and some chemical companies are even more hateful, they pour the untreated chemical water directly into the Yangtze River, which has caused the Yangtze River water flow environment to change badly, and it is precisely because of the changes in the environment of the Yangtze River that the white sturgeon species is not suitable for survival, As a result, China's only white sturgeon in the Yangtze River died. Not only China, but also many countries are now at risk of extinction, which is enough to see that the deterioration of the world environment is gradually intensifying, and rare species are no longer suitable for the environment created by humans. <>

Summary

In general, Chutian *** took the lead in reporting that the white sturgeon is facing extinction, and now the white sturgeon is really extinct, so people must pay attention to the protection of the environment, and the country's environmental department should conduct a strict monitoring of the enterprise, and severely punish those enterprises and individuals who wantonly destroy the ecological environment, so as to effectively protect the earth's environment and make those rare species more suitable for living in the space created by human beings. <>

Because of the economic development of human beings, the marine ecosystem has been destroyed, the white sturgeon can eat less and less, and there is a lot of illegal fishing, the white sturgeon has survived for hundreds of millions of years, but he has very few offspring, so it will become extinct.

Because of the illegal capture of many people in the Yangtze River, as well as the illegal crimes of some people in the market, this species has become extinct. It's actually very sad to hear such news, after all, this is a rare animal.

The main reason is that the ecological environment of the Yangtze River has been damaged, and there are many fishermen in the Yangtze River who are catching Yangtze sturgeons.

So far, China has paid special attention to the ecological environment and has built a number of wildlife sanctuaries in the wild. In 2021, the Yangtze River officially entered a "10-year fishing ban", which is enough to show that China attaches great importance to ecological protection, but these are far from enough for endangered species, and those species that have been officially declared extinct in the past few decades are the regrettable price paid by human civilization and economic development and progress. It is hoped that in the future, more and more people will pay attention to the protection of wild animals, so that endangered species will not go extinct.

In the future, we must protect animals and nature, and we must pay attention to this matter.

Human beings should reflect on how to protect the environment, no matter what kind of animals they are, they all live with us on the earth, and harming animals is no different from hurting us.

This incident warns us that we must protect animals, whether they are national-level protected animals or not? They are all members of our nature, we all have an obligation to protect them, and we need to promote the awareness of protecting the ecological environment and protecting animals.

First of all, I need to tell you a little bit!

Wei Qiwei, chief scientist of the Yangtze River Fisheries Research Institute of the Chinese Academy of Fishery Sciences, said: There has been no successful case of artificial breeding of the Yangtze white sturgeon. In the past, due to insufficient technology and hardware conditions, the captive-bred Yangtze white sturgeon only survived for a maximum of 29 days, but later all the conditions were met, but we never caught the live Yangtze white sturgeon.

If the Yangtze sturgeon rescue pond had been repaired earlier and with more foresight, and the Yangtze sturgeon would have been raised after it had been caught, there might have been hope for the Yangtze sturgeon. Now we still have a lot of technical reserves, as long as we can still find live Yangtze white sturgeon, there is a glimmer of hope.

Yangtze white sturgeonThe inability to reproduce is the main cause of the extinction of the Yangtze sturgeon. The Yangtze sturgeon usually spawn in the upper reaches of the Yangtze River and forage for fattening in the middle and lower reaches of the Yangtze River, but the construction of the Gezhouba Dam in 1981 cut off their migratory passages, and the juvenile Yangtze sturgeon can still forage through the dam to the middle and lower reaches, but the adult Yangtze sturgeon can no longer return to the upper reaches to spawn.

The Yangtze white sturgeon that was caught.

The second factor is the development of the fishing industry in the Yangtze River, which makes the big fish and small fish all in one net, which directly leads to the death of the Yangtze white sturgeon, or leads to the Yangtze white sturgeon less and less food. This is a key point, because the Yangtze white sturgeon is known as the king of freshwater fish, its body is meters long, and it needs a lot of food every day to survive, and now the Yangtze River has been designated as fish-free!

The third is shipping, the vibration of the machine and ship is very large, there are more and more ships, and the waterways are staggered, not only the propeller of the machine may directly harm the Yangtze River white sturgeon, but also the shipping projects derived from shipping, such as channel improvement, reef blasting, and bank protection, have a great impact on the habitat of the Yangtze white sturgeon.

On January 24, 2003, the Yangtze River Fisheries Research Institute of the Chinese Academy of Fishery Sciences received news that a fisherman in Nanxi, Sichuan Province had caught a Yangtze white sturgeon in the Yangtze River, and Wei Qiwei, the chief scientist of the Institute, immediately led an ambulance team to the local area, and it was confirmed that it was a female Yangtze white sturgeon about 4 meters long and weighing more than 150 kilograms, and there were a large number of fish eggs in its belly.

The Yangtze white sturgeon that was caught by mistake.

At that time, the Yangtze white sturgeon was carried around on the fishermen's boat because it was caught by mistake, and it was already seriously injured, its abdomen was all congested, and there were obvious scars on its head and tail. It was sterilized and the wound was sutured, and then placed on a nearby cage fish farm. After a day of rearing, the Yangtze white sturgeon recovered from its injuries and finally decided to release it and install ultrasonic tracking equipment on it.

It was intended to be continuously tracked and monitored, but later the tracking ship ran into a reef and was damaged, and the signal eventually failed. Since then, there have been no reports of sightings of the Yangtze sturgeon in China.

In addition, habitat loss and fragmentation caused by lake reclamation, water pollution, urbanization and aquaculture are all important factors that threaten the survival of the Yangtze white sturgeon.

The giant panda Yangtze white sturgeon in the water.

The extinction of the Yangtze sturgeon is no less serious than the extinction of the giant panda, and it is a heavy blow in the history of Chinese biology!

Artificial breeding may prevent the extinction of the Yangtze sturgeon, but it will do little in some waysOtherwise, how could there still be so many endangered species that have not been solved until now, because in some technical aspects, they are not yet at the level that can save a species.

As a living fossil-like creature in China, the Yangtze white sturgeon has lived with our culture for thousands of years and has witnessed the history of human civilizationBut now the Yangtze River white sturgeon is extinct, and the news of the extinction of the Yangtze River white sturgeon has also attracted the attention of hundreds of millions of us some time ago, which also shows that people are now paying more and more attention to the ecological environment.

And now people are constantly developing new technologies that can allow endangered species to be protected, and corresponding ecological nature reserves will be established, but why is the Yangtze white sturgeon still extinct under so much protection?Or is it because the Yangtze sturgeon has actually been showing signs of extinction very early, and people did not have the technology to breed them in captivity.

The last time the Yangtze sturgeon was found, it was about 2000, when the Yangtze white sturgeon almost did not exist, and there were no more than 1,000 in the world.

But after it was later released into the Yangtze River, no trace of it was foundThis shows that the Yangtze sturgeon may have had an extremely harsh living environment at that time.

It may be because it is difficult for white sturgeon to survive and it is not suitable for captive-bred white sturgeon, so this is the case.

Because their ecological environment requirements are too strict, it is difficult to breed.

This is mainly because China's artificial reproduction technology is not mature enough.

Because there is no way to artificially breed the Yangtze white sturgeon, it is extinct.

<>So far, many species in China are on the verge of extinction, and even some organisms have been declared extinct, which is undoubtedly the most significant loss of human precious wealth. There is a news report that the white sturgeon, an endemic species of the Yangtze River, has been officially declared extinct, and this news has received widespread attention and eager discussion from netizens as soon as it was reported, and at the same time, it has also made many people feel sad and indignant, so many netizens have asked: Why did this tragedy occur?

In fact, I believe that many people will have their own views and opinions on this issue, but they can only be explained from the following reasons.

Human behavior is overly intrusive

In fact, sometimes the extinction of natural species is more related to the excessive interference of human behavior, and the main reason for the extinction of the endemic species of the Yangtze River in China is because the construction of dams has cut off the migration route of the white sturgeon, which will have a very great impact on the habits and life of the white sturgeon to a certain extent, and they cannot quickly adapt to the changes in the environment, so they will slowly go extinct. Although this problem is also taken into account in the process of dam construction, fishing channels are built next to them, but unlike humans, they do not have too much will to clearly design the trajectory of their movements, so it is still very related to our excessive renovation.

Destruction of the ecological environment

Sometimes, in order to satisfy their own selfish interests, human beings often not only fish for white sturgeon, resulting in a decrease in the number of white sturgeon, but also choose to mine sand and gravel in the Yangtze River in order to harvest more wealth, which will have a certain impact on their living environment, and illegal mining may actually harm them, and will also destroy their own habitat, resulting in a certain amount of pollution in the Yangtze River.

So to a certain extent, this also brings us a certain warning, as the most important responsibility of human beings is to protect our ecological environment, and this is often to protect our own home and future, isn't it?