Responses to environmental changes in the Arctic top predators based on fine-scale behavioral data
| Project/Area Number |
21681002
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| Research Category |
Grant-in-Aid for Young Scientists (A)
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| Allocation Type | Single-year Grants |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | National Institute of Polar Research |
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Principal Investigator |
WATANABE Yuuki 国立極地研究所, 研究教育系, 助教 (60531043)
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| Project Period (FY) |
2009 – 2012
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| Project Status |
Completed (Fiscal Year 2012)
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| Budget Amount *help |
¥20,410,000 (Direct Cost: ¥15,700,000、Indirect Cost: ¥4,710,000)
Fiscal Year 2012: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2011: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2010: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2009: ¥9,620,000 (Direct Cost: ¥7,400,000、Indirect Cost: ¥2,220,000)
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| Keywords | 北極 / 捕食動物 / 北極海 / 水温 / 遊泳 / サメ / 捕食 / 遊泳能力 / データロガー / 捕食者 / ニシオンデンザメ |
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| Research Abstract |
Fine-scale behavioral data were recorded for the Greenland shark and the polar bear, the top predators in the Arctic ecosystems. Greenland sharks showed the slowest swim speed and tail-beat frequency across fishes, when the effect of body size was accounted for. This result indicates that the swimming performance of this species is limited by cold water in the Arctic Ocean. Polar bears were active for about the half of their time, without showing clear diel activity patterns, in April.
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Report
(5 results)
Research Products
(36 results)
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[Journal Article] Scaling of swim speed in breath-hold divers.2011
Author(s)
Watanabe YY, Sato K, Watanuki Y, Takahashi A, Mitani Y, Amano M, Aoki K, Narazaki T, Iwata T, Minamikawa S, Miyazaki N
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Journal Title
Journal of Animal Ecology
Volume: 80
Pages: 57-68
Related Report
Peer Reviewed
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[Journal Article] A new method to calibrate attachment angles of data loggers in swimming sharks. Eurasip J. Advance in Signal2010
Author(s)
Kawatsu, S., Sato, K., Watanabe, Y., Hyodo, S., Breves, J. P., Fox, B. K., Grau, E. G., Miyazaki, N.
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Journal Title
Processing
Volume: Article ID 732586
Issue: 1
Pages: 732586-732586
DOI
Related Report
Peer Reviewed
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