In the early morning of August 27, 2022, CCTV reported that two crocodile gars were caught in the artificial lake in Ruzhou, Henan. In order to capture these two guys, it took a whole five days to capture these two crocodile gars. For this reason, all the water in five artificial lakes with a total area of nearly 505,400 square meters was drained from . It can be said that it was a big deal. They didn’t sleep or eat, and they had to catch these two crocodile gars alive if they tried their best.
survived for hundreds of millions of years. Is it a "living fossil" or a "demon"
What is the origin of this crocodile gar? even if it takes labor, material resources and financial resources, they must be included in the network. Many netizens think that it is a bit of a big deal for these two fish.
In fact, this crocodile gar is not a product of our country. Its hometown is the United States on the other side of the ocean. Speaking of which, is still a "living fossil". It has survived on Earth for hundreds of millions of years. In the same era as dinosaurs, an asteroid collided with the Earth and did not allow it to disappear from the Earth. . This kind of thing that likes to live in Tamsui Group all year round is just frightening, but it is mainly because it is too survivable. Moreover, its shell is very hard and it needs to be drilled with an electric drill, and it has a strong survivability.
After coming to China, I saw that there were no natural enemies. In rivers or lakes, seeing these groups of fish in groups was like seeing a buffet, and it was a full meal. The reason why this time, we must spare no effort to capture these two crocodile gars is that in order to prevent it from flooding here, causing ethnic invasion, and destroying the ecological environment of the local waters and the biological chain of .
spans the Pacific Ocean, why are you staring at Guangdong?
Since it is not a local creature, how did the crocodile gar arrive in China? You should know that if is natural evolution, a creature from America to Asia will have to go through tens of thousands to hundreds of thousands of years. Therefore, this is definitely not the natural factor that causes it to come to this land. There is only one reason, that is, human factors.
This matter can be traced back to In the 1980s, alligator gar was introduced to the Chinese market as a kind of ornamental fish . Guangdong Province is China's largest ornamental fish trading center . Many merchants saw that this thing was good. It had a crocodile's mouth and a long tail. It would definitely make a lot of money when introduced. At that time, in order to open up the domestic market, I gave this thing a very interesting name - Fu'e. At this time, many bosses felt that the name of this thing is good, and coupled with some curiosity, , if you put a crocodile in your company, it will definitely be very shocking , and many people place orders one after another. But unexpectedly, this thing grows to one or two meters in size as you raise. You can’t put it down even if you raise a fish tank. What should I do? Many monks and temples are small, so I might as well release them.
This "good deed" almost made the guy flood in Guangdong. The crocodile gar is a little picky about the environment. It likes humid and hot environments and does not like cold. If it is cold, it will reproduce. It's a coincidence. The subtropical climate in Guangdong is very suitable for its growth and reproduction. The freshwater resources in the Pearl River Basin are so rich, and there are no natural enemies. It's simply paradise! Moreover, this guy likes to breed during the flood season, and it rains frequently in Guangdong in summer, which is even more suitable for it. So for a while, this guy can always be seen appearing in Guangdong on the news, such as Baiyun Lake in Guangzhou in January 2019, Qixinggang Park in Panyu in October 2020, etc. Currently, alligator gars can be frequently seen in Guangzhou, Shenzhen, Foshan, Zhaoqing, Shanwei and other places in Guangdong. Its footprints are even going north. not only travels around Guangdong, Guangxi and Yunnan, but also travels all over Hunan, Jiangsu, Shanghai, Henan, Shandong, Beijing and other places.Although
Alligator Gar has not been listed on the "List of Invasive Alien Species in China", its potential crisis of biological chain destruction still exists. In 2022, the Ministry of Rural Agriculture and other relevant departments formulated the "Notice on Issuing the Overall Plan for the Census of Invasive Alien Species", and conducted a nationwide census on ten major alien aquatic organisms, including crocodile gar. On April 15, 2021, the " Biosafety Law of the People's Republic of China" was officially implemented, and Article 81 made relevant provisions on the arbitrary release of alien species, that is, if anyone releases alligator gar without approval, he will face a penalty ranging from 10,000 to 50,000 yuan.
In China, it is also "everyone shouts and beats" in the United States. While being a "demon king of the world" in China, it is almost on the verge of extinction in the United States. What is the charm of the crocodile gar? It can make this "living fossil" that survived for hundreds of millions of years and became a rat crossing the street that everyone shouted and beats.
From the body size, this guy is about two meters long and weighs about 130 kilograms. For example, in 1910, a 3-meter-long crocodile gar was found in Mississippi . In 1956, a weighing about 74 kilograms was captured in Arkansas . So far, the largest crocodile gar caught in the world. was a big guy found in Mississippi, USA in 2011. Its body length reached 2.572 meters and its weight reached an astonishing 148 kilograms, equivalent to two and a half-adults. And creatures like this are generally living in the sea and rarely live in freshwater areas such as rivers and lakes.
Think about it, if one day I go to the river to play, if I find such a huge monster, who wouldn't be afraid? It is also human instinct to feel fear of this unknown giant creature. The key is that this guy is too big to forget it. The scales on are so hard that they can only be cut with a chainsaw, because they are still sharp diamonds at both ends, which also make it extremely sharp. Many primitive indigenous people of the Americas have used its scales as weapons. The enamel scale structure of is similar to that of human teeth. It is precisely because this shell is difficult to break. Even if it is attacked, it can perfectly protect the internal organs of the body and is invulnerable to swords and guns. Therefore, it has not been treated as food by dinosaurs and has escaped the mass extinction of organisms by virtue of its ability.
In addition to these sharp scales, the scarier thing is its very long beak, which has a row of dense teeth. If it unfortunately falls into its mouth, it will be gone even if it has ten lives. In fact, alligator gars do not use these teeth to chew things. They will only use their teeth to bite the prey and then swallow it in one bite like a snake. They will not cause harm to animals with a size of more than 1/4 of them, nor will they cause harm to people malignantly.
However, in the United States in the last century, people knew nothing about this creature and could only feel panic. So in the southern part of the United States, the existence of crocodile gar is not an animal, but a monster at all! Although there has never been relevant investigations and statistics on whether the crocodile gar will hurt people, and there is even no record of relevant cases, if people are bitten by a giant monster by the river, they will always put this hat on the crocodile gar.
The author once published in the New Orleans newspaper, an article titled "The Alligator Gel is More Dangerous than the Man-Eating Shark", which describes the Alligator Gel as offending the Extremely Evil . Everyone knows how terrifying the Man-Eating Shark is, and the Alligator Gel is even more fierce than the Man-Eating Shark in people's hearts. In fact, most people living in the southern United States are very afraid and resistant to the crocodile gar, and even want to eliminate it. In addition, alligator gar often eats all the fish in the water, especially fish that are very valuable to humans, such as black bass, catfish, , etc. For a long time, alligator gar was also classified as "garbage fish".
Time came to
slaughter first, then protect it. Life and death turn is still a vicious cycle
This unprecedented massacre movement almost caused the "mouse crossing the street that everyone shouted and beaten" to be exterminated. Until the 21st century, the American Fisheries Association suddenly noticed . It was difficult to find traces of crocodile gar in most states in the United States. so it was listed as an endangered species and began to protect this species.
In this way, the crocodile gar has changed from being beaten by everyone to being protected. But it has a panic effect on people and still exists. Even though the United States has called for the protection of alligator gar, people still hate it and even use its meat for frying. As for the taste, it should not be very good. After all, the sales of fried crocodile gar in the United States are not very good.
Don’t mention eating it and think that the crocodile gar that is flooded in Guangdong can also enter the dining tables of thousands of households. In fact, as an invasive alien species, the crocodile gar carries a lot of bacteria and pathogens, and its eggs are even more toxic. It can produce a protein toxin called echinosol toxin. The principle is that histidine binds to histidine decarboxylase, and produces a natural toxin through reaction. Although this toxin has a very low fatality rate, it can cause symptoms such as dizziness, vomiting, diarrhea, and hypoglycemia, which is also very uncomfortable for a while. Moreover, this kind of fish meat is very troublesome to deal with, with a very strong fishy smell, and it is difficult to cover up even if it is added with onion, ginger and cooking wine.
bears a bad reputation, and can also atone for the sins and specialize in racial invasion
Although it is a "living fossil", whether in the United States or in China, the crocodile gar has no reputation left. However, it cannot be said that they are really useless! In fact, at some point, people are still very useful.
also happened in the United States. Mississippi River basin in the 1970s, and encountered a very headache-inducing ecological problem. There are a large amount of phytoplankton, such as water blooms, algae, and other phytoplankton, and no matter how you salvage it, you can't finish . At this time, the United States heard that Asian carp can solve this problem, and specializes in eating these water plants, snails , etc., so it started to import large batches of Asian carp to the Mississippi River . The good news is that Asian carp did solve these plants flooded in the water , but no one expected that just like this freshwater fish, has no natural enemies in the United States, and has a particularly strong reproductive ability, which almost poses a threat to the ecological environment of the Great Lakes Basin in the United States.
drove away the annoying phytoplankton, but the large-scale invasion of Asian carp made many experts and scholars helpless for a while. At this time, everyone suddenly thought of the local nemesis - the crocodile gar. Isn’t this guy just eating these freshwater fish , so he began to put alligator gars into the water sources all over Asian carp. Unexpectedly, the results were significant. Sure enough, because of the existence of these "natural enemies", these Asian carp became honest. The move also made everyone start to admire the crocodile gar.But don’t worry about whether the crocodile gar will flood in the United States. After all, the Mississippi River is its hometown, and there are many natural enemies of crocodile gars.
strictly prevents ethnic invasion and protects the ecological environment
Therefore, the invasion of foreign species and the protection of local organisms have also become a problem that all countries attach great importance to. It is possible that species that are endangered in one place can indeed reproduce and thrive in another place, but it will have a fatal impact on many local organisms. and protecting organisms cannot be started at will from the perspective of species introduction. The best way is to create some environment for these endangered species from the local area where they are suitable for survival.
With the development of import and export trade, whether it is artificial or unintentional, many animals and plants will enter the country, posing a threat to our ecological environment, such as the most recently discovered "Yellow Flower" and " cockroach " and so on. Although the customs has strictly inspected and quarantined these incoming animals and plants, and has firmly guarded the country's borders, there are still many fish that have missed the net appearing around us.
At present, our country has also issued many relevant laws and regulations, and at the same time, it has also dealt with invasive species well in a harmless manner. , for example, physical or chemical methods, so that these invasive alien species will no longer have side effects and affect the ecological environment. And clean up the pathogens and bacteria they carry to prevent infection of other organisms. must not be careless in maintaining the ecological environment. In terms of current environmental requirements, it also hopes to maintain the existing biological chain and not allow these alien species to interfere too much with the environment.
Back to the beginning, it can also explain why even if wants to drain the water from the five artificial lakes, they still have to capture these two crocodile gars in the water alive. Although they will not cause harm to humans, if they start to reproduce in a suitable environment, the consequences will be unimaginable. So if one day, if you want to release a pet or something, you should still find out about it with the relevant department. Don’t cause a big disaster because of kindness. It is possible that your unintentional action will cause many local organisms to suffer a catastrophe and even cause population spillage. The consequences are really unimaginable!