Field Observation on the Relationship between Topognsphy and Living Conditions of Marine Organisms in Man-made Rocky Coast

The purpose of this study is to clarify the best habitable conditions for marine organisms in man-made rocky coast. From this viewpoint, the field observations on plane and vertical distributions of marine organisms are carried out in man-made rocky coast facing Osaka Bay. In addition, the rate of seawater How due to wave and current is surveyed by the plaster ball method at several points in the coast. The relationship between topography and living conditions of marine organisms in man-made rocky coast is discussed based on the results of these observations.