Photosymbiotic animals encrusting corals: dispersal, reproduction, and current status of their distribution
| Project/Area Number |
23510296
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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 |
Resource conservation science
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| Research Institution | University of the Ryukyus |
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Principal Investigator |
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| Co-Investigator(Renkei-kenkyūsha) |
HIROSE Mamiko お茶の水女子大学, 理学部, 特任講師 (10398307)
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| Project Period (FY) |
2011 – 2013
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| Project Status |
Completed (Fiscal Year 2013)
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| Budget Amount *help |
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2013: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
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| Keywords | サンゴ礁 / 光共生 / ホヤ / 海綿 / 垂直伝播 / 外来種 / 国際情報交換（台湾、スペイン、イスラエル、米国） / 国際情報交流（台湾、スペイン、米国、イスラエル） |
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| Research Abstract |
Diplosoma simile and Trididemnum cyclops are considered to be wide-spreading species based on the faunal surveys in the Ryukyus, Taiwan, Panama, and some oceanic islands in North Pacific (i.e., Minami Daito-jima, Bonin Islands, Hawai'i). Especially, D. simile has already spread in not only Indo-Pacific but also in Caribbean Panama. In the monthly monitoring of drifting seaweeds, colonies of T. cyclops were found on the Sargassum leaves, indicating that these species have a long-dispersal ability using drifting materials. These two species are the most possible candidates that expand the distribution range toward higher latitude following the increase of seawater temperature.
Larval spawning was confirmed by direct observation and histological and electron-microscopic studies in a cyanobacteriosponge Terpios hoshinota that encrusts scleractinian corals.
A new species of a colonial hydroid Zancrea sango was described. This species spread the colonies on a scleractinian coral colony.
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Report
(4 results)
Research Products
(35 results)
