- Habitat :
streams flowing into the West Sea, such as the Imjingang, Hangang, Geumgang and Mangyeonggang Rivers, and those flowing into the East Sea, such as the Nakdonggang River
- Shape Characteristics :
It has a relatively large head. When the spawning period approaches, the side and the bottom of the male’s body turns yellowish and orange color, respectively, and a hard process is formed around the mouth. The upper side of its dorsal fin is colored white or yellow, while that of Zacco temminckii is red.
- Special Characteristics :
In 2005, the name Zacco koreanus was attached to it, to distinguish it from Zacco temminckii. It is found in mid- or upstream, where the water flow is gentle.
- Feed :
aquatic worms and seaweeds affixed to the stream bottom or rock surfaces