Ecological study on sex change tactics in females of polygynous fishes
| Project/Area Number |
15K07222
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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 |
Ecology/Environment
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| Research Institution | Hiroshima University |
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Principal Investigator |
Sakai Yoichi 広島大学, 生物圏科学研究科, 教授 (70309946)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 性転換 / 一夫多妻 / ハゼ科 / スズメダイ科 / 産卵 / 産卵能力 / 操作実験 / 飼育実験 / 逆戻りコスト |
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| Outline of Final Research Achievements |
To contribute to understandings of mating strategies and tactics in reef fishes, field observational surveys and aquarium experiments focusing on mating behaviors and sex change patterns in females of polygynous damselfishes and gobies were conducted. In field surveys, a new sex change pattern called cryptic sex change was confirmed. In aquarium experiments, fecundity data in female individuals just after reversed-directive sex change were successfully obtained.
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Report
(4 results)
Research Products
(11 results)
