| Project/Area Number |
20360242
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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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 | The University of Kitakyushu |
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Principal Investigator |
KUSUDA Tetsuya The University of Kitakyushu, 国際環境工学部, 教授 (50037967)
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| Co-Investigator(Kenkyū-buntansha) |
KADOKAMI Kiwao 北九州市立大学, 国際環境工学部, 教授 (60433398)
UEDA Naoko 北九州市立大学, 国際環境工学部, 准教授 (10433400)
SHIMATANI Yukihiro 九州大学, 工学研究院, 教授 (40380571)
YAMANISHI Hiroyuki 佐賀大学, 低平地研究ンター, 准教授 (20240062)
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| Project Period (FY) |
2008 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥18,460,000 (Direct Cost: ¥14,200,000、Indirect Cost: ¥4,260,000)
Fiscal Year 2010: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2009: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2008: ¥8,970,000 (Direct Cost: ¥6,900,000、Indirect Cost: ¥2,070,000)
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| Keywords | カワスナガニ / メガローパ / 北川河口 / 甲殻類 / シミュレーション / 選好性 / ハビタット / 化学物質 |
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| Research Abstract |
The purpose of this study is to consider measures to preserve Deiratonotus japonicus in the River Kitagawa, Miyazaki Prefecture, Japan. To obtain fundamental data to figure out measures for the preservation of the crab, a long term field survey on its existing number, its growing tests in laboratories from spawn to juvenile through zoea and megalopa, gene analysis to identify the kind of Deiratonotus japonicus in the field, and preference tests on the particle size distribution of river bed as well as application of the habitat evaluation procedure to estimate suitability of habitats. The preservation measure as a research result is the following ; 1)the particle diameter of sediments should range from a scale of millimeter to about 12mm which corresponds to the adult dimension of the crab carapace along the transverse direction at the top edge of salt wedge in the river and 2)river structures and/or morphology of the river should be provided which can keep the size distribution of sediments at the point on flooding.
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