Global InformationNigorobuna information
Nigoro-buna, sometimes called round crucian carp, is a type of wild goldfish (Carassius auratus grandoculis) or related cyprinid (Carassius buergeri grandoculis) endemic to Japan. Its habitat is limited to Lake Biwa, its tributaries and distributaries, and irrigation canals, in the Shiga Prefecture (west-central Honshu), northeast of Kyoto.
The fish is of culinary importance locally in Shiga Prefecture, where it is used as an ingredient for funazushi, a type of narezushi. The fermented fish is closely packed with rice and salt in tubs.