About YAGAWA SHIN'ICHIRO
About 佐賀県佐賀西高
About NAKAHARA MASATO
About 佐賀県牛津高
About 佐賀自然史研究
About freshwater fish
About collection
About habitat
About habitat environment
About paddy field
About revetment
About Cyprinidae
About Misgurnus anguillicaudatus
About Saga prefecture
About Fishes
About Population ecology
About 佐賀
About 淡水魚
About 採集