About ITOH Nobuyasu
About National Inst. of Advanced Industrial Sci. and Technol. (AIST), Ibaraki, JPN
About NAYA Tomonori
About National Inst. of Advanced Industrial Sci. and Technol. (AIST), Ibaraki, JPN
About KANAI Yutaka
About National Inst. of Advanced Industrial Sci. and Technol. (AIST), Ibaraki, JPN
About KUMON Fujio
About Shinshu Univ., Nagano, JPN
About AMANO Kazuo
About Ibaraki Univ., Ibaraki, JPN
About Limnology
About lake
About Eutrophication
About Fresh Water
About brackish water
About sea water
About TOC
About Nitrogen
About polynuclear aromatic hydrocarbon
About volcanic activity
About algae
About habitat environment
About vertical distribution
About sulfur content
About lacustrine sediment
About Aquatic environment
About total nitrogen
About Lake Kitaura
About Plants
About Cryptogamae
About Lake Kitaura
About 全硫黄
About Ecosystems
About Perylene
About 日本
About 北浦湖
About 水生環境
About 歴史
About 多環式芳香族炭化水素
About 流入