Hirofumi Yamashita (山下 弘文, Yamashita Hirofumi) (died 2000) was a Japanese ichthyologist and environmentalist. For 25 years, he opposed the reclamation project in Isahaya Bay, one of the world's largest wetlands, compelling the Japanese government to scale back the massive dike project and reevaluate the environmental costs of reclamation. He was awarded the Goldman Environmental Prize in 1998 for his efforts on marine protection.
Source: “Hirofumi Yamashita”, English Wikipedia (CC BY-SA 4.0), excerpt