Effect of gate opening on the bottom environment around Isahaya Bay reservoir,
| Project/Area Number |
25340065
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Environmental impact assessment
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| Research Institution | Kumamoto Health Science University |
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Principal Investigator |
Takahashi Tohru 熊本保健科学大学, 保健科学部, 教授 (70369122)
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| Co-Investigator(Renkei-kenkyūsha) |
Tsutsumi Hiroaki 熊本県立大学, 環境共生学部, 教授 (50197737)
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| Project Period (FY) |
2013-04-01 – 2016-03-31
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| Project Status |
Completed (Fiscal Year 2015)
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| Budget Amount *help |
¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | ミクロシスチン / シアノバクテリア / 諌早湾 / 有明海 / ベントス / 生物濃縮 / シアノトキシン / 生態系サービス |
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| Outline of Final Research Achievements |
The core part of this study is to evaluate the environmental change with the drainage gete opening of Isahaya Bay Reservoir according to the final and conclusive judgment by Fukuoka High Court (final time limit was December 10, 2013). However, the opening of a gate is not carried out due to a taboo provisional disposition decision against the High Court decision by the Nagasaki District Court. There is no example that final and conclusive judgment was not carried out, and this is the unexpected situation.
However, we natural scientists, are not able to concern such political and legal problems. Therefore, we continued conventional monitoring and carried out short-term sedimentation of microcystines with the mass drainage, and the long-term diffusion and bioaccumulation in the sea area including the study of degradation process of microcystins in the sediment.
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Report
(4 results)
Research Products
(18 results)
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[Journal Article] Short-term dynamics of cyanobacterial toxins (Microcystins) in seawater following discharge from a reservoir created by the reclamation project of the tidal flats in Isahaya Bay, Japan2015
Author(s)
Umehara, A., Komorita, T., Tai, A., Takahashi, T., Orita, R., Tsutsumi, H.
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Journal Title
Marine Pollution Bulletin
Volume: 92(1-2)
Issue: 1-2
Pages: 73-79
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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[Journal Article] Implications of changes in the benthic environment and decline of macro-benthic communities in the inner part of Ariake Bay in relation to seasonal hypoxia2015
Author(s)
Tsutsumi H, Takamatsu A, Nagata S, Orita R, Umehara A, Komorita T, Shibanuma S, Takahashi T, Komatsu T, Montani S
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Journal Title
Plankton and Benthos Research
Volume: 10
Issue: 4
Pages: 187-201
DOI
NAID
ISSN
1880-8247, 1882-627X
Related Report
Peer Reviewed
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[Presentation] Widespread dispersal and accumulation of toxic substances, microcystins produced by freshwater cyanobacteria in Ariake Bay, the west coast of Kyushu, Japan2014
Author(s)
Umehara, A., Takahashi, T., Komorita, T., Orita, R., Tsutsumi, H
Organizer
2nd Asian Marin Biology Symposium
Place of Presentation
Jeju, Korea
Year and Date
2014-10-02 – 2014-10-04
Related Report
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[Presentation] Short-term effect of high-turbidity water discharged from a reservoir of reclaimed land onto Isahaya Bay, Kyushu, Japan2014
Author(s)
Komorita, T., Umehara, A., Tai, A., Takahashi, T., Tsutsumi, H.
Organizer
2nd Asian Marin Biology Symposium
Place of Presentation
Jeju, Korea
Year and Date
2014-10-02 – 2014-10-04
Related Report
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