Bass belongs to seafood. Mainly distributed in China, North Korea and Japan's shallow coastal waters; China's coast are distributed, preferring to inhabit the estuary, but also upstream freshwater rivers. Domestic Zhoushan Islands in the East China Sea, the Yellow Sea, Jiaodong Peninsula waters yield more for one of the economic fish, but also the development of mariculture varieties.

In Chinese, there are many kinds of fish can be called perch, of which the most common are four, respectively: sea bass, scientific name of the Japanese true perch, distributed in the offshore, and estuarine saltwater-freshwater confluence. The Matsue River perch, also known as four-gill perch, is a migratory fish that is best known for descending into the sea. Largemouth bass, also known as California bass, a new species introduced from the United States.

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