The hake has a long body, a large head, big and sharp teeth. It has two dorsal fins and a large mouth and belongs to carnivorous fish. It is mainly distributed in the South Atlantic and the Eastern Pacific regions, including South Africa, Angola and other places. Their body color is usually dark silver-gray, and they inhabit at depths ranging from 50 meters to 1000 meters. The hake has relatively high economic value and is often used for food.