Professor Chang was invited by Chinese National Committee on Large Dams to give a report about “ Researches and Construction of Fish Passages in China” at the roundtable meeting regarding sustainable development of reservoirs, dams and hydropower on 25^th Nov, 2020. 

Many technical experts and scholars from construction and management of reservoir dams background from Laos, Myanmar, Cambodia, Vietnam, Nepal, Indonesia, Philippines, Morocco, Mali, Burkina Faso and other countries participated in the roundtable meeting.