Although there is no expectation for the arrival of sea sausages, a girl in the sea caught live hairtail with her bare hands, which is enough. As a Qingdao native, my first reaction is to see which district of Qingdao this is. The beach is far away from me. It is very rare to catch a big fish in Qingdao, not to mention that the water familiar to Qingdao people can't live. In Qingdao, hairtail is called saury. Qingdao people often eat home-cooked fish. The local people only know the local small-eyed swordfish, but have no enthusiasm for the big-eyed swordfish in the south. This kind of deep-sea fish is alive, so there are no fish in the market, not even in fishing ports or Lian Gang. This lady is very happy to catch such a beautiful fish. She grabbed the fish with her bare hands and shared the video on her social media account.

Netizens are also very interested in this fish, calling it? Mirror fish? . Sharp-eyed netizens also found that this is an ordinary hairtail, and many hairtail look like this. Only after death will the whole body become dull and not as bright as when it was fresh. Netizens are not only imaginative, but also humorous. However, this woman must be very unusual in catching slender and smooth hairtail with her bare hands. The phenomenon of fish floating head is most likely to occur after lightning in winter night and summer. Green plants only release oxygen after photosynthesis in the sun and absorb oxygen at night. The same is true of green plants in the water, which will lead to lack of oxygen in the pond. When winter comes, a lot of oxygen is consumed due to the oxidative decomposition of organic matter in water. During a thunderstorm in summer, the surface temperature is low and the bottom temperature is high.

When the hot water rises, the humus at the bottom of the pool will also turn up. At this time, humus needs to absorb a lot of oxygen to accelerate its decomposition, and at the same time, it will release a lot of carbonate gas. Fish absorb oxygen in water and endure carbonic acid gas, so they float their heads. Floating head phenomenon will lead to the death of fish. Fish may jump out of the water because of impact, such as sudden noise, abnormal noise, casting nets, passing ships and so on. Fish may be frightened and jump out of the water. Besides being chased by natural enemies, carnivorous fish and other fish often jump out of the water to escape. Too great a change in water temperature, sudden clearing of rain, water jumping caused by rainstorm or flood discharge may all cause stress response of fish, and the most common manifestation of fish stress response is jumping out of the water.