| Project/Area Number |
22780187
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Single-year Grants |
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| Research Field |
General fisheries
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| Research Institution | Fisheries Research Agency |
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Principal Investigator |
MORITA Kentaro 独立行政法人水産総合研究センター, 北海道区水産研究所さけます資源部, 主任研究員 (30373468)
|
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| Project Period (FY) |
2010 – 2012
|
| Project Status |
Completed (Fiscal Year 2012)
|
| Budget Amount *help |
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2012: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2011: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2010: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
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| Keywords | サケ科魚類 / 温暖化 / 水温 / 生活史 / 個体群過程 / シミュレーション / 緯度的変化 |
|---|
| Research Abstract |
Because most of the physiological processes of ectotherms are controlled by temperature, climate warming could affect a variety of population processes (e.g., age at maturity and migratory behavior). In the study, (i) the thermal habitat use by salmonid fishes during ocean life, and (ii) the effect of rising temperature on life-history traits and population dynamics of masu salmon were examined. Active migrations throughout their ocean lifespan allowed salmon to their preferred temperatures. By contrast, life-history traits of freshwater parr (age at smolting and maturity) were passively affected by temperature, which may magnify fluctuation in fish abundance.
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