Brief review on research and construction of fish-ways at home and abroad

Based on the data of research and application of the fish-ways at home and abroad, a brief review is given in this paper on the main fish species going through dams and fish-ways construction and development. The main types of fish-ways structures,hydraulic conditions in ponds of fish-ways in terms of flow velocity and relevant factors, as well as dam-passing buildings in dams with moderate and large height are discussed. The research approaches applied today and the research development of fish going downward are summarized. Some suggestions and major aspects that Chinese water engineers would practice in following decades are put forward in order to promote the balance of ecosystem and protection of species diversification.