Humans are considered to be a relatively long-lived creature in the animal kingdom, and compared with humans, the lifespan of most animals is relatively short.
Just like some creatures such as cats and dogs that people often come into contact with in their daily lives, the general life is basically only ten years, and even only a few years.
Of course, this is limited to terrestrial life, but marine life is more special, and many of them live much longer than humans.
Just like the sharks and whales that you often see in some film and television works, there are basically decades every year, and whales can even reach hundreds of years.
In freshwater, there is a more peculiar fish, whose shape looks somewhat similar to a dog running on land, but the basic lifespan and degree of ** are comparable to the sharks in the ocean.
What kind of fish is this fish? What kind of places do you usually appear?
As we all know, the longest river in China is the Yellow River, although the length of the Yellow River is indeed very prominent, but the water environment is not particularly good.
The reason why the Yellow River is called the Yellow River is mainly because there is so much sediment in the river that when the water is rushing, it looks like a piece of muddy water is surging.
The creatures that can grow in the Yellow River, not only that, but can also reproduce rapidly in the waters of the Yellow River and gradually dominate the waters of the Yellow River, you can imagine how fierce they are.
And this creature is a pike that has become quite famous in recent years and has been nicknamed by many young people as an underwater mad dog. Dogfish are special fish creatures belonging to the Pike family of the Pike order, and according to the current records, there are a total of 8 different species.
In China, there are two main kinds, one is the black pike, and the other is the white pike. The difference between the two varieties can be judged basically from the name, mainly in the color difference in appearance.
The whole shape of the pike looks very similar to that of a dog, which is why it got its name. This fish is a typical predatory fish, and sometimes it mainly eats small fish, shrimp, insects and other creatures in some waters.
It is very different from other herbivorous fish, and among freshwater fish, the size of the pike can be regarded as relatively prominent. The length of the complex can reach up to 14 meters, the weight can eventually reach 35 kg.
Not only that, this fish is different from some other fish such as carp and grass carp, the basic lifespan of this fish is nearly 30 to 40 years longer than that of ordinary carp, and the average lifespan can reach more than 70 years.
The body is relatively elongated, and the head tends to be flattened. The mouth is generally large, and the teeth are also very sharp, and this peculiar head shape is also to facilitate underwater hunting.
The body of the dogfish is mostly greenish-brown, except for the white belly of the fish, there will be a lot of dense spots on the body, dense spots, different varieties, the color of the spots is also different, just like the two different varieties of black spots and white spots mentioned earlier, the color is different.
In the public impression, many fish are actually relatively docile and rarely take the initiative to attack, but pike is the opposite.
This fish is very predatory and aggressive, and not only that, but also has a certain territorial awareness within the water environment. When moving underwater, if other fish accidentally intrude into their territory, they will be attacked.
And this kind of attack is not necessarily aimed at fish of different races, sometimes even between the same race, there may be a situation of biting each other due to territorial competition.
The main species of this fish are actually distributed in North America and Eurasia, and prefer cold temperate waters, low water temperature, high dissolved oxygen, and rivers with relatively rich aquatic and grass resources, which are the favorite areas of this fish.
This fish will have a certain impact on the water environment, although this fish itself is not an invasive fish, but the entry into the Chinese market is mainly due to the introduction of artificiality.
There is no large number of this kind of fish introduced in the domestic policy, but there are some illegal businesses, in order to seek profits, choose to introduce illegally, and even some are airlifted from abroad, and they can't be raised for a period of time, so they are directly stocked locally.
Because this fish itself has a very strong reproductive ability, as long as the environment is suitable, the ability to survive underwater is very strong. This is also the reason why a large number of this pike have appeared in the Yellow River area of China in recent years.
The underwater ecological environment has a certain degree of harmony, and the underwater ecology of a region will form a relatively stable survival chain after years of development.
As a species released by illegal personnel, pike appeared in the waters of the Yellow River, and this fish has a very strong ability to reproduce, spread and hunt, and soon destroyed the original biological chain of the Yellow River.
After a large number of invasive pike destroyed the structure of the local fish population, the very direct impact is that there are many common fish in the local area, and the number of them has begun to decrease or migrate in groups.
Even because this fish has a strong predatory nature, some fish in the local river environment are even affected by it, almost to the point of extinction.
According to official news reports, the breeding and hunting of this fish in large quantities in the Yellow River basin has led to a sharp decline in the number of many different Yellow River fish species in the Yellow River basin, such as carp, crucian carp and silver carp.
In fact, this fish is also edible, and its meat itself is also delicious, but there are too many bones in the distribution, and it is very troublesome to eat.
Because of this, there is actually not much basic demand for this fish in the market. Some unscrupulous merchants were the first to introduce this pike, initially because of its fatty meat.
Originally, they thought that it would be very popular when it was put on the market, but the actual situation was not as they expected. In view of the fact that this kind of fish is very troublesome to eat and difficult to cook, it is sold very poorly in the market, and the basic ** is also falling again and again.
And when fishermen want to catch this kind of fish, it is also very difficult. Because this fish is more aggressive and has sharp teeth, it is possible to be attacked by this fish if you are not careful.
In such a situation, there is not much profit to be made by fishing for this fish to be sold. Therefore, the actual demand and degree of this fish in the market are not very high.
Some of the first merchants to introduce this fish found that they could not make much money after introducing it, and released these fish. In the end, this kind of fish multiplied in a large area of the Yellow River waters, destroying the basic ecology of the Yellow River waters in China.
The abundance of pike has posed a great threat to China's native waters, ecological balance and safety. At present, it is not only affecting the waters, the internal environment and the biological chain, but also the many people who live near the river.
In addition to the waters of the Yellow River, this fish has also been found in other waters. Because pike is a relatively aggressive fish, not only for the underwater ecological environment, some fish will cause attack damage, but also for humans.
There are already fishing enthusiasts and some outdoor swimmers who have been attacked by this fish during their activities. The teeth of this fish are very sharp, and once it bites a human, the damage caused is also very large.
And the water quality environment in the outdoor environment is not very clean, and there are often a lot of microorganisms and some bacteria, parasites and other things inside the river.
Some outdoor swimmers or fishing enthusiasts who are attacked by this fish can easily cause wound infection, and if they are not treated in time or improperly, they may even cause other infectious diseases.
Now that this fish is breeding in large numbers, many people living in the Yellow River area have become more worried about the water quality and ecological environment of the Yellow River.
At present, ** has made a certain management in response to this situation. The specific plan will be implemented in the future, and the relevant process for the protection and restoration of the Yellow River ecosystem is now on the agenda.
At present, there are professional fish farmers who closely monitor and study pike, first understand the basic distribution of this fish, how much it is, and some basic survival habits, and carry out centralized management according to these contents.
Of course, in addition to the centralized management of this kind of fish, it is also necessary to strictly regulate and deal with those who illegally release fish in the Yellow River or some other river waters.
At present, there may be many people who do not know much about this fish, if there are people who plan to travel to the Yellow River, they must be cautious when moving along the river.
If you encounter such a fish, if you can avoid it, try to avoid it. If you fail to dodge it, you are accidentally bitten by this fish, or even cause wound infection in the later stage, you must go to the hospital as soon as possible.
In recent years, there have been many invasive alien species, which have affected some waters, environments or other ecological environments in China.
And this situation is mainly due to the release of some mercenary businesses or some people with weak legal awareness.
This kind of behavior is very undesirable, and we should still pay attention to protecting the environment at ordinary times, and do not destroy public safety and health environment for some petty profits.
For the prevention and control of this fish, the state has already adopted relevant measures. But the follow-up also needs the cooperation of the people, for ordinary people, actively cooperate with the national prevention and control, and do not do illegal release of animals on a daily basis, it is very good to be able to do this.