Before reading this article, please click "Follow", which is convenient for you to discuss and share, and can bring you a different sense of participation, thank you for your support.
preface
In China, it is regarded as a delicious "snakehead fish" on the table, invading the United States for more than 20 years has become their nightmare, enough to cause the United States to cause economic losses of 1 billion, but the United States has nothing to do with them, the United States tries to kill blackfish by poisoning, electric shock, and draining water, and even does not hesitate to invest 800 million US dollars in a bounty to let the citizens see one to kill one, how powerful are these "snakehead fish"?
Snakehead
"Snakehead fish" is also known as black fish, this fish is distributed in most of the freshwater rivers on the mainland, "snake head fish" is black all over the body with snake prints, sporadic black patches in the abdomen, sparse teeth but extremely sharp, its personality is fierce, aggressive by nature.
In China, "snakehead fish" is a common edible fish, it has few bone spurs, high meat content, extremely high nutrition, protein content ratio than chicken and beef content, for pregnant women and women who have just given birth is a great supplement.
Not only that, "snakehead" also has high medicinal value, after surgery, eating "snakehead" can build muscle and blood, promote wound healing, in fresh water growth of "snakehead" generally does not exceed 20 kg, but in some waters, "snakehead" can grow to more than 50 kg.
The largest "snakeheadfish" body in the world is about 1.5 meters, and in China, "snakehead" generally does not grow so large, because the "snakehead" in the mainland is extremely high in the consumption rate, basically a fish grows to about 10 pounds will be fished by fishermen on the shore and served on the table, the length is about 30 to 35 centimeters, fishermen and diners do not give the "snakehead" the opportunity to grow freely underwater.
Snakehead fish has a strong reproductive ability, can produce tens of thousands of fish eggs at one time, snakehead fish in order to take care of fish cubs, will also use water weeds to build a nest to raise fish fry, and snakehead fish will personally take care of small fish, wait until they grow into shape before leaving, so the survival rate of snakehead fish is beyond everyone's imagination.
Although snakehead fish has many benefits, but it can cause great damage to the ecological environment, snakehead fish appetite is huge, other fish in lakes or ponds are its food, when you can't find food in the water, snakehead fish will also jump to land, because it can secrete protective mucus, so leave the water for about 3 days can survive.
When the snakehead fish swims to land, birds and reptiles on land can become its plate, and if food cannot be found on land and water, snakeheads will kill each other.
The "snakehead" grown in China can barely supply the market demand, but after the "snakehead" arrived in the United States, it flooded, resulting in ecological damage in 14 states in the United States.
"Snakeheads" invade the United States
In 2000, an American tourist found the existence of "snakehead fish" in the aquarium, he felt that the appearance of this fish was very cool, he did not know anything about the properties of this fish, out of curiosity, so the tourist bought two "snakehead fish" to take home as a pet.
After the tourist raised the "snakehead", he found that the "snakehead" needed to eat a large amount of fish food every day, and the other fish in the tank were all eaten by the "snakehead", and after about a few months, the fish tank could not hold it, so the tourist put the "snakehead" into a large bag and then threw it into the nearby waters.
The tourist's indiscriminate release behavior to the ecology of natural waters in the United States, leaving a huge hidden danger, snakehead fish in natural waters rapid growth, completely out of control, has seriously affected the living environment of other aquatic organisms, but unfortunately the US government did not know the existence and harm of snakehead fish in the first time.
About two years later, a group of fishing enthusiasts made an appointment to go fishing in a pond in the United States, and after a while, an angler caught a black "snake head fish", after spreading it on the ground, the length of the body was close to 1 meter, and the weight was as high as 100 pounds.
Other anglers saw such rare fish coming to watch, saw that the "snakehead" looked so unique, so they immediately returned to the shore, immediately waved the fishing rod, ready to do a big job, about a few tens of minutes later, another angler caught a half-meter-long "snakehead" on the shore.
The anglers gathered around and cheered, but after the fishing trip, they did not take the fish away, because everyone was not sure whether the snakehead fish was a rare species, so after taking pictures of the fish, they lifted the "snakehead" and threw it back into the pond.
In order to show the fishing results of the day and show off the happiness of catching "snakehead" to friends, anglers posted photos of snakehead fish to social platforms, and after many people reprinted, the photos of snakehead fish were widely concerned on the Internet and attracted onlookers from biologists.
After seeing the photo of the snakehead fish, biologists couldn't help but tighten their hearts, their faces changed in an instant, and they were greatly worried about the ecological environment of the United States, American biologists directly posted on the Internet, popularizing the harm of snakehead fish to the public, and warned everyone to report to the relevant departments in time when they see this fish in the future.
After biologists investigated, it was found that nearly one-fifth of the natural waters of the United States have found the presence of snakeheads, and nearly 14 states have become the hardest hit areas, and even once faced the situation of imminent "loss", biologists called on relevant departments to pay attention to the harm of snakeheads, and timely give treatment measures, otherwise the ecological problems in the United States will become more and more serious.
After following the advice of biologists, the relevant departments of the United States began to deal with the biological problems caused by snakeheadfish, for which they specifically canceled the fishing ban that had just been promulgated, and the US authorities tried to kill snakehead fish by hunting, and even did not hesitate to invest nearly 800 million to control "snakehead".
Measures taken by the US authorities to eliminate "snakeheads"
In order to completely solve the problem of snakeheads, relevant departments have thought of various methods, and do not hesitate to spend a lot of money to use the power of the American people to start hunting snakeheads, if the American people can eliminate a snakehead, they will get the corresponding rewards of relevant departments, so this method has indeed mobilized the enthusiasm of the American people to hunt snakeheads.
Americans have begun to join the hunt for snakeheads, and some have chosen the most traditional and primitive method, they use fishing to catch snakeheads, but this method is simply fanciful for the goal of completely eliminating snakeheads.
And the angler spent a day, caught only a few snakeheads, and got very few bounties, so the fishing people gradually lost their enthusiasm, and some people chose to use electric shocks to kill snakeheads, this method is to put a grid in a closed lake or pond, if a snakehead fish drills into the area where the grid is placed, it will be electrocuted.
The starting point of the American people is to hunt more snakeheads, but unexpectedly, the snakehead fish are too large, the power of the power grid is not enough to kill them, but let the small fish and shrimp in the pond suffer electric shock, in the long run, not only did not catch the snakehead, but caused secondary damage to the ecological waters, and the relevant departments promptly stopped the American people's hunting method.
After a period of tossing, the American people hunted few snakeheads, so even with the temptation of bounties, many people have withdrawn from the activities of hunting snakeheads, watching snakeheads so difficult to deal with, biological experts and heads of relevant departments have fallen into deep thought.
In order to be able to restore the balance of natural waters as soon as possible and completely eliminate snakeheads, biologists propose to sprinkle rotenone insecticides, known as natural enemies of fish, in the water, to be honest, the way to kill snakehead fish with rotenone insecticide is a bit risky, because while destroying snakeheads, other aquatic organisms will also be "poisoned".
Faced with such problems, biologists suggested that after killing snakeheads, some new species could be cultivated in the waters to restore the biological diversity and vitality of ecological waters, and in the following months, rotenone was sprinkled in many waters in the United States, and to the delight of biologists, after several days of efforts, snakeheads were finally eliminated.
While everyone was still immersed in joy, another state in the United States found traces of snakeheads, but this time biologists did not dare to use rotenone, because this time the snakehead fish reappeared in a very critical area, and if you are not careful, it will cause irreparable damage to the surrounding waters.
In desperation, biologists proposed draining the water in the lake and using the way of exposing snakeheads to sunlight to kill them alive, but considering that snakeheads can survive on land for at least three days, if other creatures in the water are exposed to sunlight during these three days, they will surely die.
Moreover, draining the water in natural waters is a huge project, which requires a lot of manpower and material resources, and also costs a lot of money, and to a certain extent, it will also cause certain losses to the US economy, so this plan was rejected.
summary
How to eliminate snakehead fish in a short period of time has become a problem for American biologists, who really have nothing to do to eliminate snakeheadfish, so the US authorities have repeatedly reported on TV and social media on the harm of snakeheadfish, calling on the American people to unite the government to jointly manage the living environment.
Alien species invading the local ecosystem, is a headache, such as China's scavengers, pearl turtles and water hyacinth problems have also made people's heads, a seemingly inconspicuous release behavior, is likely to cause the local ecological water system collapse, so that the country suffers huge economic losses, so we must learn from it, in the face of unknown aquatic creatures, to the relevant departments to deal with, do not randomly put into the natural watershed.