About NAKAHARA MASATO
About 佐賀県牛津高
About 佐賀自然史研究
About Saga prefecture
About irrigation canal
About Cyprinidae
About farm land consolidation
About freshwater fish
About biodiversity
About habitat distribution
About habitat
About habitat environment
About Hemigrammocypris rasborella
About Hemigrammocypris rasborella
About species conservation
About ecosystem integrity
About agricultural waterway
About Population ecology
About Nature conservation
About 佐賀
About 八戸
About 農業用水路
About カワバタモロコ
About コイ目
About コイ科
About 捕獲