| Project/Area Number |
23658165
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
General fisheries
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| Research Institution | University of the Ryukyus |
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Principal Investigator |
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| Project Period (FY) |
2011 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2012: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2011: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
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| Keywords | サンゴ礁 / ルリスズメダイ / 高輝度蓄光剤 / 光受容体 / ルミノーバ / 蓄光シート / 光周期 / 性成熟 / 省エネ |
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| Research Abstract |
The effectiveness of the long-afterglow phosphorescent pigment (LumiNova) on the reproductive performance of the sapphire devil Chrysiptera cyanea was examined. When the fishwere reared in aquaria covered with LumiNova sheets under natural photoperiod and temperature during the breeding season, they maintained high gonadal activity. Rearing the fish with a LumiNova pellet on their head under a programed light-dark cycle during the non-breeding season resulted in induction of gonadal development. Because LumiNova continues to emit green light during dark phase, the extended light conditions probably contributed to active reproduction in the fish. In conclusion, long-afterglow phosphorescent pigment can be used for energy-efficient aquaculture to regulate the reproduction of fish.
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