| Project/Area Number |
25870508
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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 |
Aquatic bioproduction science
Aquatic life science
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| Research Institution | Kyushu University |
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Principal Investigator |
Kitano Hajime 九州大学, (連合)農学研究科(研究院), 助教 (30635008)
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| Co-Investigator(Renkei-kenkyūsha) |
Matsuyama Michiya 九州大学, 大学院農学研究院, 教授 (00183955)
Nagano Naoki 九州大学, 大学院農学研究院, 准教授 (50437943)
Sakaguchi Keishi 九州大学, 大学院農学研究院, 准教授 (50396280)
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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 |
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2013: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
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| Keywords | カタクチイワシ / 性成熟 / 産卵 / 環境応答 / 繁殖特性 |
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| Outline of Final Research Achievements |
The aim of this study is to evaluate the environmental response of reproductive traits in Japanese anchovy Engraulis japonicus under captive conditions. Expression analyses of reproduction-related genes were also undertaken to enable to quantitative evaluation of the environmental response of reproductive traits. In individuals reared in the low-temperature condition, the body size (total length) of puberty onset was larger compared with individuals under natural water temperature. In addition, lower growth rate, slower increase of condition factor were observed in individuals under the low-temperature condition. The database of reproduction-related gene was constructed by transcriptome analyses using next-generation sequencer.
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