| Project/Area Number |
25740005
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | University of the Ryukyus |
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Principal Investigator |
Yasumoto Jun 琉球大学, 農学部, 助教 (70432870)
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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 |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2015: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2014: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2013: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Keywords | 海洋生物の石灰化機構 / 地下水 / 懸濁物質 / 栄養塩 / リン酸塩 / サンゴ / 石灰化 / 骨格形成阻害メカニズム / 懸濁態 / サンゴ礁海域 / 栄養塩負荷量 / サンゴへの影響評価 / サンゴの石灰化 / 沿岸汚染 |
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| Outline of Final Research Achievements |
In this study, we propose the new role of polyamine in calcification of marine organisms, and investigated that the effects of coastal pollution of nutrients on the skeleton formation of primary polyps for hard coral Acropora digitifera. As a result, the various types phosphate clearly inhibited the skeleton formation of primary polyp at low concentration. In contrast, nitrate did not inhibit the calcification of the primary polyp. And it was revealed that the costal groundwater and spring water in an agricultural region located in the southern part of Okinawa main Island contained relatively high concentration of phosphate and nitrate. Furthermore, the suspended solids in the groundwater adsorbed the various types phosphate supplies phosphate to the sea.
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