2. The swim bladder in small yellow croaker has the effects of moistening lung, invigorating spleen and nourishing qi and blood; Gallbladder can clear away heat and toxic materials, calm the liver and reduce blood fat; Fish phosphorus can be used as pharmaceutical glue; The testis is used to extract protamine and arginine; Ovary can be used to extract lecithin.
3. Yellow croaker can be divided into large and small yellow croaker, which, together with hairtail, are called the three major seafood in China. Small yellow croaker is small with large scales and sharp mouth, which is mainly distributed in Bohai Sea, Yellow Sea and East China Sea, such as Qingdao, Yantai, Bohai Bay, Liaodong Bay and East China Sea.