Fishing term refers to the hook hanging on the upper lip of the fish. The correct method of catching dead fish doesn't mean catching some dead fish that stop breathing or can't swim, but the fish that don't struggle, resist or resist when catching, which is generally more than two kilograms.

In addition, the achievement of this condition has a great relationship with the choice of bait and the environment. Fishing in daily life should not be too rigid, but should be flexible according to different environments and fish species. Some grass carp and carp like bait very much. At this time, you can mix pink mealworms or some animal livers to attract fish.

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Fish is the oldest vertebrate. It is easy to accumulate heavy metals. Some hybrids with different chromosome numbers recorded in Qin Shu still have fertility. They inhabit almost all aquatic environments on earth, from freshwater lakes and rivers to saltwater oceans. Fish can be divided into two categories: annihilation and annihilation. Annihilation includes ampulla and armor.

Jaws include Cladosporidae, Chondrichthyes and Kiwifruit. Most fish live in water all the year round, breathing through gills and using fins to help balance and exercise. Some African lungfish, mudskippers and perches can live on land for a long time, while snakehead, eel and eel breathe through a swim.

Although most fish are cold-blooded, many sharks and tuna are semi-thermostatic, while moon fish are thermostatic. There are more than 36,000 species of fish * * * in the world, accounting for more than half of the named vertebrates, and new fish species are still being discovered, with an average of about 150 species per year, which should increase by more than 1500 species in more than ten years.

Fish is rich in animal protein and phosphorus, rich in nutrition and delicious. It is easily digested and absorbed by human body and plays an important role in the development of human physical strength and intelligence. Other parts of fish can be made into cod liver oil, fish glue, fish powder and so on. Some fish, such as goldfish and tropical fish, are brightly colored and have high ornamental value.