魚類の生息環境としての河川工法の評価

抄録

Recently, the importance of river environment has been increasingly recognized in Japan. However, there are scacely consideration for aquatic life. Moreover the judgement of amenity for fish remain also unsolved. For example, woodwork matress (mokkô-chinshô), wire cylinder (ja-kago) and gabion works (futon-kago) and others are superior conventional method of river constraction. These engineerings are also camfortable for fish, accoring to their porosity, water permeability and flexibility. But their unfit employment invited pass obstruction and scratches on fish. The present paper pursues a trial plan regarding the inspection of the relation betweeen river engineering and fish amenity.