著者

長林 久夫 平山 和雄 堀川 久仁彦

出版者

公益社団法人 土木学会

雑誌

土木学会論文集B1(水工学) (ISSN:2185467X)

巻号頁・発行日

vol.67, no.4, pp.I_1573-I_1578, 2011 (Released:2012-03-14)

参考文献数

9

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This paper analyzes blooming mechanism of freshwater red-tide in an abolished-river which eutrophicated by seventy-years. Outbreaks of red tide of the river is depend on two phenomenon; the first one is the effect of secondary current generated by the wind along with the temperature rise, the second is the flow for the downstream by the release discharge from the power generation-dam in the downstream. Euglena spp. in euglena and Uroglena spp. in yellow-zooxanthellas is clarified to be the dominant species of the freshwater red-tide.

著者

黒沢 高秀 薄葉 満 長林 久夫

出版者

福島大学地域創造支援センター

雑誌

福島大学地域創造 (ISSN:13466887)

巻号頁・発行日

vol.22, no.2, pp.6854-6863, 2011-02

著者

塩月 宏治 木村 喜代治 長林 久夫

出版者

Japan Society of Civil Engineers

雑誌

水工学論文集 (ISSN:09167374)

巻号頁・発行日

vol.38, pp.301-306, 1994-02-28 (Released:2010-08-25)

参考文献数

2

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This paper describes the relationship of the characteristics of water temperature and the conditions of water qualities in Lake Onogawa. The field observation was conducted from Augast, 1991 to October, 1992. As the results of these observations, the relationship of turbidity (TB) to 665nm absorption and potential of hydrogen (pH) to oxidation reduction potential (ORP) are discussed.