Why can't the caught fish live long after being put back into the water?

I won't live long, because after all, I'm injured, and if the hook is deep, it will hurt my esophagus.

Moreover, fish will eat carefully after being hooked, which will also cause malnutrition and eventually be eliminated by superiors. Mainly depends on the kind of fish. Lingfish, for example, will die soon, and can't live for a few times without water. For example, carp can live longer than lingyu, and long-lived fish can live for a long time. The fish just caught died after a while, because of the air pressure. When the fish is in the water, the water pressure is there, and the swim bladder regulates the body. After coming out of the water, the difference between atmospheric pressure and water pressure caused the fish to float and break, and the fish only lived for a short time. This is the case in summer. High temperature and low dissolved oxygen. When the weather is hot, fish will consume oxygen, and they will get rich soon after changing water!

But it won't kill the fish. Don't put it where the sun can shine! It is suggested to prepare a basin of water with a basin, which is also conducive to drying for a day. And you don't dry the water when you change it every day, which is technically called trapped water. Chlorine in water is very bad for fish, and it will lead to the death of fish in serious cases. Besides, when changing water, is the temperature of fresh water in the fish tank always acceptable?

As the saying goes, raising fish first raises water! The most common causes of fish death are fish disease, hypoxia, poisoning and electric shock. The difference between dead fish for various reasons is as follows. Fish disease: only when you are seriously ill will you die. Basic characteristics of fish diseases before death, such as solo swimming, abnormal body color, exercise and swimming style; The number of dead fish is increasing day by day; Treatment or environmental changes can reduce deaths; Most deaths occur during the onset season. The duration is long. Hypoxia: fish die of hypoxia, that is, "turning over the pond" and "flooding the pond" This kind of dead fish first appeared in the form of fish floating head ("rising water" and "whistling water"). If the oxygen in the pool is not replenished in time and the hypoxia intensifies, death will occur. Generally, the water quality is too fat and the breeding density is too high, which occurs in the high temperature season. When encountering severe weather such as strong wind and rainfall, the pool water is mixed and flows, and it is easy to die of fish due to lack of oxygen. There is an obvious order of anoxic dead fish, first bream and silver carp, then grass carp and herring, and finally carp and crucian carp. If shrimp, mandarin fish and other varieties are mixed together, they often float first. The duration is very short, only a few hours from floating head to death. Taking aerobic measures can save some fish.