Abstract
In recent years, it has showed that the algal bed is severely affected by the over-grazing of herbivorous fishes,
particularly in the southwestem sea of Japan. Although the present utilization of the herbivorous fishes is limited
locally in Japan, they should be effectively utilized from the viewpoint of the total ecosystem with the consideration
of the grazing impact on algal bed. In this report, the potential for marine food of herbivorous fishes is
examined based on fact-finding research for local utilization and the fisheries for herbivorous fishes in Japan.
