River management implications to consider biological diversity of ecologically-vulnerable benthic fishes such as freshwater sculpins with low mobility
| Project/Area Number |
25340063
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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 | Ibaraki University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
IGUCHI Kei'ichiro 長崎大学大学院水産, 環境総合科学研究科, 教授 (00371865)
TAKESHIMA Hirohiko 総合地球環境学研究所, 研究高度化支援センター, 特任助教 (50573086)
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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 | 底生魚 / カジカ / 河川工作物 / マイクロサテライト / 生物多様性 / 種間関係 / 生態的移動弱者 |
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| Outline of Final Research Achievements |
This study aims to evaluate the effects on instream obstructions on populations of ecologically-vulnerable benthic fishes (e.g., freshwater sculpins) with low mobility based on ecological and conservation genetic approaches, and to propose river management implications to consider their ecological features. Results of mark-and-recapture surveys revealed that a weir with 80 cm height prevented individual sculpins to ascend weir. Genetic population structure analysis, based on 15 microsatellite DNA markers, indicated a presence of wear, but statistically significant genetic population structure along a stream course. To conserve spatial connectivity along a stream course for such ecologically-vulnerable benthic fishes, setting a ramp to mitigate the height of instream obstructions, setting simple fishways to assist individual fish passing by instream obstructions, and enrichment of instream habitat quality divided by instream obstructions, are considered as valid management implications.
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Report
(4 results)
Research Products
(70 results)
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[Journal Article] Exposure of a herbivorous fish to 134Cs and 137Cs from the riverbed following the Fukushima disaster.2015
Author(s)
Tsuboi J, Abe S, Fujimoto K, Kaeriyama H, Ambe D, Matsuda K, Enomoto M, Tomiya A, Morita T, Ono T, Yamamoto S, Iguchi. K.
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Journal Title
Journal of Environmental Radioactivity
Volume: 141
Pages: 32-37
DOI
Related Report
Peer Reviewed
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[Journal Article] Group composition, relatedness, and dispersal in the cooperatively breeding cichlid Neolamprologus obscurus.2015
Author(s)
Tanaka, H., Heg, D., Takeshima, H., Takeyama, T., Awata, S., Nishida, M. & Kohda, M.
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Journal Title
Behavioral Ecology and Sociobiology
Volume: 69
Issue: 2
Pages: 169-181
DOI
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Peer Reviewed / Open Access
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[Journal Article] Evolutionary origin of the Scombridae (tunas and mackerels) : members of a Paleogene adaptive radiation with 14 other pelagic fish families2013
Author(s)
Miya, M., Friedman, M., Satoh, T.P., Takeshima, H., Sado, T., Iwasaki, W., Yamanoue, Y., Nakatani, M., Mabuchi, K., Inoue, J.G., Poulsen, J.Y., Fukunaga, T., Sato, Y. and Nishida, M
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Journal Title
PLOS ONE
Volume: 8
Issue: 9
Pages: e73535-e73535
DOI
Related Report
Peer Reviewed
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[Journal Article] MitoFish and MitoAnnotator : a mitochondrial genome database of fish with an accurate and automatic annotation pipeline2013
Author(s)
Iwasaki, W., Fukunaga T., Isagozawa R., Yamada K., Maeda Y., Satoh T.P., Sado T., Mabuchi K., Takeshima H., Miya, M. and Nishida M
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Journal Title
Molecular Biology and Evolution
Volume: 30
Issue: 11
Pages: 2531-2540
DOI
Related Report
Peer Reviewed
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[Presentation] MitoFish and MitoAnnotator: a mitochondrial genome database of fish with an accurate and automatic annotation pipeline2013
Author(s)
Iwasaki, W., T. Fukunaga, R. Isagozawa, K. Yamada, Y. Maeda, T.P. Satoh, T. Sado, K. Mabuchi, H. Takeshima, M Miya & M. Nishida
Organizer
日本バイオインフォマティクス学会2013年年会
Place of Presentation
タワーホール船掘
Related Report
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