Abstract
A series of artificial reefs were constructed in the nearshore waters in Akita coast faced on the Japan sea. Each reef was constructed in consecutive years from 1992-1996. This provided the opportunity to investigate settlement and recruitment processes in this area. Using belt transects and quadrats, algal and faunal distributions were identified. By comparison of these distributions on each structure for 5 years, different distributions of marine organisms caused by the passed time were found.
