| Project/Area Number |
25871062
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| Research Category |
Grant-in-Aid for Young Scientists (B)
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| Allocation Type | Multi-year Fund |
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| Research Field |
Aquatic bioproduction science
Conservation of biological resources
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| Research Institution | Kyoto University (2014-2016)
Research Institute for Humanity and Nature (2013) |
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Principal Investigator |
Ichikawa Kotaro 京都大学, フィールド科学教育研究センター, 准教授 (70590511)
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| Project Period (FY) |
2013-04-01 – 2017-03-31
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| Project Status |
Completed (Fiscal Year 2016)
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| Budget Amount *help |
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2015: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
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| Keywords | 受動的音響観察 / ジュゴン / ジュゴン鳴音 / バイオロギング / 国際情報交換 / タイ国：オーストラリア |
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| Outline of Final Research Achievements |
Due to safety concerns in Sudan, we had to change our study site to Thailand and Malaysia. In a warm water season, vocalization rate of the dugongs in Thailand was affected by time of day, tide level, and tidal current (p<0.05). Also in a warm water season, vocalization was observed almost all day around Tinggi Island, Johor, Malaysia. This suggests that multiple dugongs visited the monitoring area. In a cold season in Thailand, dugongs visited the feeding ground during the night. But in a warm season in Malaysia, dugongs visited the feeding ground in the afternoon. These results suggest that their feeding behavior may be different between warm and cold seasons.
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