Abstract
To preserve the fishery resources, some maintenance works have been done in Japan. However, it is not easy to assess the effect of these projects because of increasing research cost on the relation between fisheries and environment. In this paper, a simple method of environmental assessment, has been proposed by using Habitat Evaluation Procedure Method (HEP). A model of HSI(Habitat Suitable Index) with two indexes is used to estimate the quality of biotope in an intertidal zone. These two indexes are water quality and number of attached organism there. From the results, it is found that HSI value is closely related to fish catches based on statistical data. This means that the method is available for assessing the effect of environmental change on the resources of fisheries in the intertidal zone.
