Pike side fish usually refers to pincer fish, generally no thorns. Pincer fish belongs to the catfish, also known as spotted fork-tailed catfish, with thick meat without thorns, smooth skin and tender meat, fat and delicious characteristics. Pincer fish has a very high nutritional value, usually used to make boiled dishes. Especially suitable for stewing with squash to hang out its fresh flavor, taste fresh and tender.

The pincer fish has a long body, smooth and scale-free body surface, rich in mucus, complete lateral line, and obvious lateral line holes in the skin. There are more obvious and irregular spots on the chin, and the spots disappear in individuals weighing more than 0.5 kilograms.

The natural distribution area of the pincerfish is in the central basin of the United States, southern Canada and parts of the Atlantic coast.

Most of the growth in the water quality is not polluted sandy, gravel bottom or fast-flowing large and medium-sized rivers, but also into the brackish and freshwater water life.