2002 Volume 8 Pages 277-282
Recently, the PHABSIM method has been recognized as one of the general methods which can evaluate the quality of aquatic habitats in many rivers. However, the problems on applying this method have been simultaneously realized to be solved. One of them is related to the fish ecological features such as life cycle. In this study, we focus on the difference of each life stage of fish such as foraging, spawning and refuge, and attend to propose the method to integrate the evaluation for respective stages. Then, we are able to evaluate the habitat for whole life stage of fish with considering seasonally associated change of water discharge and total habitat suitability at each stage.