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*hiroyuki ueno
Faculty of Agriculture, Ehime University
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Toshiya Katano
CMES, Ehime Univ
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Shin-ichi Nakano
Faculty of Agriculture, Ehime University
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Kaori Anbutu
Sch. Environ. Sic., Shiga Prefectual Univ.
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Osamu Mitamura
Sch. Environ. Sic., Shiga Prefectual Univ.
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Yasuhiro Satou
Fac. Sci., Yamagata Univ.
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Masahito Sugiyama
Grad. Sch. Human Environ. Stud., Kyoto Univ.
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Author's Organization:Limnol. Inst., SB, RAS