Some knowledge about fish

 Products in detail

    Fish (Fish), is the oldest vertebrate. Part of the number of different chromosome number of hybrids [1] of the offspring still have fertility. They inhabit almost all the earth’s aquatic environment, from freshwater lakes, rivers and oceans of salty sea. The year is fish live in the water, breathe through gills, fins with ectothermic vertebrates support the body balance and movement. According to the late Canadian scholars statistics, is now the world living species of fish were 24618, accounting has been named vertebrates more than half, and new species of fish continue to be discovered, per year on average to about 150 species, 10 years has increased more than 1500 kinds, at present the whole world has named the species about 32100. A group is the lowest level of the most primitive vertebrate in.

    Fish is rich in animal protein and phosphorus, nutrient rich, delicious, easy to digest and absorbed by the human body, the human physical and intellectual development has a significant role. The other part of the fish, fish, fish meal can be made cod-liver oil etc.. Some fish such as goldfish, tropical fish and other body is colorful, colorful, with high ornamental value. My country has a long coastline, numerous rivers and lakes, fish species are very rich. According to the survey, the freshwater fishes in China has more than 1000, the famous “four everybody fish” (black carp, grass carp, silver carp, bighead carp and carp, crucian carp, is China’s major excellent species of freshwater fish; China’s marine fish known about 2000 kinds, common have hairtail, yellow croaker, big horse salmon and other.