Abstract
To avoid the environmental deterioration due to installation/construction of coastal structures, the assessment procedure for marine environment should be investigated. To attract fishes and the other marine organisms on artificial fish reef or the other type of coastal structures, the biological investigation of sesentary organisms and benthos is generally required. It is effective to investigate the attached organisms on silt curtains, for overview the habitat of attached marine organisms on coastal structures. Because silt curtains develop in various marine environments, that is in various water depth under wave and current actions. This paper discussed the relationship between the marine environment and the attached organisms on silt curtains.