| Project/Area Number |
20770017
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
Ecology/Environment
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| Research Institution | University of the Ryukyus |
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Principal Investigator |
HARII Saki University of the Ryukyus, 大学院・理学系研究科, 特任助教 (30334535)
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| Project Period (FY) |
2008 – 2009
|
| Project Status |
Completed (Fiscal Year 2009)
|
| Budget Amount *help |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2009: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2008: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Keywords | 海洋生物生態 / 造礁サンゴ / 共生藻類 / 初期生活史 / 造礁サンゴ類 / 海洋生理生態 |
|---|
| Research Abstract |
Reef-building corals harbor unicellular symbiotic dinoflagellates, but little is known regarding the timing and detailed process of the onset of symbiosis in early stage of corals. I examined the onset of symbiosis through the early larval stage of corals under both laboratory and field conditions. The results are as follows : (1)The larvae from 9 corals acquired symbionts under the laboratory conditions. The larval development of both a mouth and coelenteron play important roles in symbiont acquisition, (2)The larvae cultured in site acquired different genotypes of symbionts, (3)Several types of symbionts were found in both one-month-old and more than one-year-old polyps, however, algal types differed. Corals in early stages acquire any genotypes of symbionts and may select suitable ones as longer-term partners when they grow up.
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