Recently, restoration and creation of seaweed bed have been regarded as important. The Fisheries Engineering contributes to development of formation of seaweed bed greatly. However, it is difficult to form seaweed bed in a barren ground zone. Because some studies about mechanisms of barren ground occurring by over-grazing by sea urchin progressed, directionality of some countermeasures is becoming clear. However, mechanisms of barren ground occurring by over-grazing of herbivore fish still are not almost understood. It will be important that an action of herbivore fish is grasped in order to make seaweed bed. For researchers studying Fisheries Engineering, a symposium about formation of seaweed bed in a barren ground zone was held. Because a lot of suggestive argument was done in this symposium, it was wished that development of formation of seaweed bed technique progressedmore.
