2016 Fiscal Year Final Research Report
Clarification and conservation of the characteristic of the local population through the spawning season variation between the Japanese fluvial sculpin population
| Project/Area Number |
26450277
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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 |
Aquatic bioproduction science
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| Research Institution | Gifu Prefectural Research Institute for Fisheries and Aquatic Environments |
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Principal Investigator |
Fujii Ryouji 岐阜県水産研究所, 下呂支所, 専門研究員 (70455525)
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| Project Period (FY) |
2014-04-01 – 2017-03-31
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| Keywords | カジカ / 個体群 / 産卵期 / 放流 |
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| Outline of Final Research Achievements |
To explain the risk of genetic disturbance by disorder transplantation, the spawning experiments and river investigations was conducted to reveal the difference of the spawning season among populations in the Japanese fluvial sculpin.
Populations of different environments start spawning at different times, even at the same temperature. It was considered began to spawn is irrelevant as the timing of temperature change, such as minimum temperature or increased to a specific water temperature. Therefore it was thought that the start spawning of the Japanese fluvial sculpin was determined not by the water temperature at that time but by other factors such as the light cycle.
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| Free Research Field |
水産増殖学
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