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Text, Editor/Xu Chenyuan's study
The "Yellow River" is turbulent, the current is so fast, will there really be fish in it?
"The Yellow River" is the mother river of the Chinese nation, whether in ancient times or in modern times, the Yellow River contains this majestic power in our lives, and the annual Yellow River flood season is almost the focus of our attention, but this also makes people wonder ~
Among the fish living in the Yellow River, most of them are pure natural freshwater fish, which is because the estuary where the Yellow River is located is the junction point of the two major regions across the plateau and the flat land, so there will be a large number of freshwater fish every year, which will be washed into the estuary of the Yellow River with the current, which also makes many people wonder, for such a large number of fish washed into the sea water will die?
1. The living environment of fish is different
As the name suggests, "freshwater fish" is a fish that lives in freshwater, and the body of freshwater fish must have a higher salt content than the surrounding environment, and it stands to reason that they can only live in freshwater and micro-seawater environments.
But most of the fish in the Yellow River are freshwater fish, so how do these freshwater fish survive in the Yellow River?
In fact, the most important part of freshwater fish is that its gills can filter the water in the area, so that the fish can obtain a part of the oxygen molecules for the functions in their bodies.
The density of the gills also has a great relationship with the environment, the gill cells of freshwater fish can only adapt to the freshwater environment, and when the salt content in the Yellow River is higher than that of freshwater resources, then the gill cells will become dry, resulting in the death of freshwater fish, but the freshwater fish in the Yellow River are living well.
We know that there are no absolutes, and this is the case for most fish, and there is still a small percentage of fish that can change their lives.
On the World Geography Channel, we will find some deep-sea fish, they often look strange, even colorful, in fact, this is also the result of evolution in the natural environment.
If we compare freshwater fish and deep-sea fish, we will find that they will have different appearances according to their different living environments, but there is no doubt that their final evolved body and body structure are the most suitable for the current environment, and only when they are suitable for the environment, can they continue to reproduce and survive.
Once the surrounding environment changes, these fish cannot evolve the function of adapting to the current environment in a short period of time, so they will only be greeted by death.
And we see a lot of hobby fish farmers, when they raise some precious fish, they have a particularly strict control over the temperature, humidity, and light and other aspects of the fish tank, because they want to create the most suitable environment for fish survival, in order to ensure that it can maintain the life of the fish to the greatest extent, and the rarer the fish, the more demanding their living conditions.
2. How do fish survive?
Death seems to be the fate of most fish entering the seawater, but the density of fresh water and saltwater in the estuary of the Yellow River is not the same, and the river water and seawater do not mix immediately, and there will be stratification in some areas, and this environment also gives those fish who wash into the sea a chance to breathe.
Even if this part of the fish cannot immediately adapt to the seawater environment, but in this environment, they can slowly adjust their physical state according to the external conditions, so that they can gradually adapt to this living environment.
In this process, some fish die because they can't adjust themselves in time, and others can adapt to the new environment and survive in the new environment as the environment changes.
Freshwater fish such as the Yellow River carp, which we are all very familiar with, can survive for a short time in seawater, in fact, it also stores a part of the fat in the body tissues to cope with a series of physiological response mechanisms.
But there are also such a part of the fish, they will not choose to sit still, but continue to swim down, looking for a more suitable living environment for themselves, but this requires a lot of physical strength, like this fish generally have a strong willpower.
If a fish wants to change its fate, the environmental factors are too great, especially the flow rate of the lower reaches of the Yellow River is very slow, so most of the fish can not go up the river smoothly, but if the current is maintained at the speed of the middle and upper reaches, then the fish can take advantage of the opportunity of the current to rise up bravely and return to the environment on which they live.
However, not all fish can return to the river with their own willpower, which also needs to be considered by some practical factors.
Just like some fish, if its body structure is streamlined, then it will have a greater success rate in the process of countercurrent, and this body type will make them reduce more energy consumption in the process, and the "endurance" is relatively stronger.
In fact, fish are not as weak as we imagined, many fish have a strong perception of the living environment around them, especially when they are aware of the changes in the environment around them, they will immediately change their routes, swim back, and let themselves return to the area suitable for survival, they also know how to seek advantages and avoid disadvantages.
In addition to these fish in the Yellow River Basin, we also encounter some fish swimming against the current in other situations, and the most common occurrence of this kind of situation is when the fish enter the ovulation period.
During this period, they will make an assessment of the environment in front of them, and if they realize that their eggs cannot be preserved to the maximum extent, or are washed by the river, or eaten by other fish, then they will look for new places to spawn and maintain a relatively safe living environment for their future generations to the greatest extent.
So they will swim against the current, will continue to try, will continue to get hurt, but in the end, the more they can give, the more they can sacrifice, often can get the best results, they use their own efforts for future generations, to provide a more secure living environment, continue the survival of their species, this is what they deserve.
3. The survival wit of fish is very similar to that of humans
In fact, fish behavior and human beings have the same effect, we will see fish, after trying again and again, to create a better living environment for their offspring, we will also be moved by their spirit, many times we can find resonance in it.
Just like we often say "carp jumping over the dragon gate", the existence of this natural phenomenon, coupled with the spirit given to it by human beings, to achieve a beautiful yearning, in fact, this is a kind of enlightenment that we humans get in harmony with nature.
Many times we are also like fish, when the predicament comes, under the influence of the general environment, some of us will be affected by the tide of the environment, impacted to the field that does not belong to us, which may correspond to the tide of the times, and are laid off and resigned.
Some people will choose downward and temporarily stabilize the basic environment of their survival, but some people can find a new set of survival rules in the process of these environments, continue to swim against the current, and return to the environment they originally wanted to live in, isn't this the truest portrayal of us?
In fact, whether it is freshwater fish or deep-sea fish, whether it is the most common or expensive and extremely rare, the existence of each species is necessary for the survival of this environment, and they also form a set of their own ecological chain.
When these fish coexist with us on this earth, they have to survive according to the laws of nature, but without exception, each species is congenital and will subconsciously protect its own life from other creatures.
The fighting strength against the current is actually just a part of the spirit that we humans have given him, in essence, everyone has just turned on the function of self-protection, which is just a matter of nature.
Just like these fish, everyone is supposed to stay well in their own environment, but some force majeure factors have brought us to a strange environment, so what we can do is either change the environment, or change ourselves, only in this way can we survive.
And for the final result, how to make a choice is to look at the fish, their own will and belief in survival, resist the past, you will have more resources, better living conditions, as the saying goes, "poor to think about change, change is to understand", this is even the fish understand the truth.
Many times we humans will think that our abilities are too strong, but in the end, we are constantly taking from nature and being empowered by nature.
Like fish, we may encounter a lot of realistic factors to oppose our own voices, but we only need to know the most fundamental thing, which no one can change, which is the desire for life that arises from our own cognition in our hearts.
This phenomenon is not only the case with fish, but also with everything we see in the world, and sometimes we just need to change our mindset and everything will be.
This is the fundamental reason why we analyze these fish, to observe from nature, we are subconsciously to understand the essence of things, to discover and summarize the laws of nature around us, and then to use for our own purposes.
A truly wise person can truly integrate himself into nature and draw energy from it, and when we truly experience the feeling that heaven and earth are all together, we will be truly rich in our hearts, and the behavior of these fish that we see, including the article we read, will play its due value.