About NOMURA RITSUO
About 島根大 教育 汽水域研究セ
About NINAGAWA KIYOTAKA
About NISHIDO HIROTSUGU
About 岡山理大 自然科研
About bay
About environment
About interannual variation
About Foraminifera
About stage(period)
About elevation
About ten years change
About 20th century
About 海面水位
About 海面水位上昇
About 汽水環境
About 久見浜湾
About Quaternary
About Climatology,climatic change
About 京都
About 浜
About 有孔虫
About 群集
About 海面水位