November 2, 2019: "Efforts for the Institute of Freshwater Biology, Nagano University (tentative name)", Suwagata Community Center

January 30, 2021: "On the Establishment of the Chikuma River Blessing Restoration Association", Chikuma River Blessing Restoration Association, Ueda City Hall (Secretariat: Jyosho Fisheries Cooperative Association)

June 5, 2022: "Utilization of Diverse Fish Habitats and Their Fragmentation," Ueda City Central Community Center

August 3, 2024: "Exploring the Mysteries of the Japanese Eel - A Journey from Lake Nojiri to the Spawning Grounds?" Lake Nojiri Aquatic Life Observation Event ( Organizer: Professor Masaru Tanaka)