About HAYASHI NORIO
About 千葉県中央博物館
About 水環境学会誌
About farm pond
About geographical distribution
About agricultural water
About biota
About aquatic plant
About disturbance
About ecology(science)
About exotic species
About limnology
About Anthropogenic disturbance
About Reservoirs,regulating ones
About Ecology in general
About ため池
About 生態系