Perch is not only a marine fish, but also a freshwater fish. It is distributed in the western Pacific Ocean and produced in the coastal areas of China. There are many in the Yellow Sea and Bohai Sea, and the fishing season is spring and autumn. The fishing season is from 10 to 1 1 every year, when the perch will migrate to salty or fresh water areas. In China, there are many kinds of perch, including four kinds: sea perch, Songjiang perch, Seven Star perch and California perch.

Sea bass is bigger than fresh water bass. Sea bass is long and thick, with many black spots on its back, but there are no black spots on its back. Fresh sea bass sold in supermarkets are generally sea bass, and sea bass are generally chilled. Sea bass tastes better and tastes better, so the unit price of sea bass will be a little higher than that of sea bass.