Actually, a lot of people who fish in the ocean put the fish back into the ocean every year, but before releasing them, they make a small hole in the belly of the fish, this is so to help them? It actually really helps these fish. According to some tracking statistics, drilling a small hole in the belly of the released fish can indeed improve the survival rate of the fish. From a scientific point of view, this also has certain advantages. base.
First of all, we need to be clear about one concept, that there is a difference between sea fish and river fish. In the ocean, fish have their own living space. For example, certain fish. Fish like to live in shallow water, and some fish like to live in shallow water, and the pressure in the ocean is constantly changing with the depth of the sea. Fish live in different areas. in the environment owhere they feel most comfortable.
The release of fish is detrimental to deep-sea fish. Under normal circumstances, even deep-sea fish can swim to shallow sea areas. This is due to the special existence of the swim bladder. On the one hand, the swim bladder is an organ used by fish to adjust buoyancy. It can be adjusted by inflating and deflating, so that the fish can move up and down in the ocean without any restrictions. The bladder also has the function of regulating water pressure.
When people fish, deep-sea fish are often the most injured, because the pressure of the deep sea is the most comfortable environment for these fish, and after being taken out of the water, These fish feel the pressure often changes dramatically and they cannot handle this change. Friends who have fished in the deep sea must know thate deep-sea fish will undergo great changes after being captured. The most common is that the fish's stomach protrudes from the. mouth.
If it is serious, the whole fish will burst directly, and a kind of gas will be discharged at the same time. This is caused by the rapid change in air pressure under normal circumstances, at depth. sea fish swim towards the shallow sea, due to the reduction in pressure, the gas inside the swim bladder expands significantly. In such circumstances, fish often give up and reduce the gas in the swim bladder, so they can adapt better. pressure changes.
But fishing is different. When a deep-sea fish is caught, it happens in an instant. The change in pressure also occurs in an instant. The fish itself does not have enough time to react and release the gas into the swim bladder. By idiotsequately, under such circumstances, the swim bladder will continue to expand significantly and begin to slowly compress the internal organs of the fish. appear. A condition in which the fish's stomach protrudes into its mouth.
This type of damage to this deep-sea fish can be considered permanent and irreversible. Under such circumstances, if we do not deal with it and release the fish directly, the expansion of fish will rise. They cannot swim to the depths of the sea at all. They will always float on the surface of the sea because of their inflated swim bladder. In this way, these fish will become food for other animals, this is how they appear. The method involves drilling a small hole in the belly of the fish.
This is a very direct and effective way. By drilling a small hole and piercing the fish's bladder, the gas can be released, so thatthe released fish can return to the depths of the sea alone, and For wild animals such as deep-sea fish, the recovery ability is very powerful, so drilling a small hole in the swim bladder will have no impact and it will be completely restored in a short time.
Of course, this method is relatively crude and may not be effective. First of all, different fish have different internal body structures and different locations for their swim bladders. If the fish is stuck in the wrong place, it is very likely to damage the internal organs of the fish, which can be a real life-threatening injury. At the same time, not all fish will be like this. This mainly depends on the depth at which the fish lives.
If it is a shallow sea fish, this is not necessary at all. Of course, this also depends on the position of the fish itself beforeto be captured. If it is in a shallow sea area, it is. basically it is not necessary, and deep sea fishing. This type of situation should be relatively rare in reality. Generally speaking, most people can fish in shallow seas. Deep sea fishing also carries certain risks and harms marine ecology. environment.
In short, for the released fish, if it is a deep-sea fish, and there is a situation caused by changes in atmospheric pressure, when it does not there is no other way, it is best to sting a small There is a hole in the belly of the fish. This has a certain effect. If it is a fish in shallow water, this is practically not necessary. And since it is for fishing, there is no need to release the caught fish, so there is no point. in all this trouble!