| Project/Area Number |
21560568
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Civil and environmental engineering
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| Research Institution | Nagaoka University of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
HIMENO Shuji 長岡技術科学大学, 工学部, 准教授 (60334695)
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| Co-Investigator(Renkei-kenkyūsha) |
HARADA Arata 独立行政法人土木研究所,独立行政法人国立環境研究所, 水環境研究グループ,株式会社クレハ分析センター, 水環境研究グル専門研究員 (10391616)
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| Project Period (FY) |
2009 – 2011
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| Project Status |
Completed (Fiscal Year 2011)
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| Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2011: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2009: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
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| Keywords | 環境質評価 / 水質 / バイオアッセイ / オオミジンコ / 生態毒性 / 繁殖試験 |
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| Research Abstract |
For evaluating the ecotoxicity of various river water samples by using D. magna, both chronic test and an acute toxicity test using concentrated organics were conducted. As the results, chronic tests with D. magna can be used as a reliable method for evaluating long-term ecotoxicity of river waters. Moreover, a positive relationship was observed between the decrease ratio of offspring in chronic test and the inhibition effect in the acute test. Results of this study suggest that the acute toxicity test can be used for predicting long-term effect in a short term.
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