2012 Fiscal Year Final Research Report
Global warming and salmonid fishes: impact of rising temperature on population process through life history changes
| 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
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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 |
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| 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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Research Products
(13 results)
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[Journal Article] Strategies for the conservation and management of isolated salmonid populations: lessons from Japanese streams2013
Author(s)
Tsuboi, J., Iwata, T., Morita, K., Endou, S., Oohama, H., Kaji, K.
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Journal Title
Freshwater Biology
Volume: 58巻
Pages: 908-917
Peer Reviewed
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