The Relationship between The Structural Plates Foulings and Seawater Environment in Shimizu Port

Abstract

The foulings by marine organisms of structural plates exposed to seawater was studied. The structural plates made of concrete and of PVC were placed in the waters of Shimizu Port. The specimen were collected once every month and were subjected to microscopic obseivation. The sessile organisms were identified and evaluated. It was found that the surface roughness of the plates and the circulation of seawater around them have significant influence on the quantity and diversity of sessile organisms on the specimen.