Comparison of feeding ground usage of the dugongs between cold and warm seasons
| 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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Report
(5 results)
Research Products
(59 results)
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[Presentation] Schooling behaviour of Pacific bluefin tuna in a sea net cage2014
Author(s)
Fukuda, H, Fujioka, K, Takeuchi, Y, Ichikawa, K, Mitamura,H, and Arai, N
Organizer
20th Symposium of the International Society on Biotelemetry
Place of Presentation
Kyoto
Year and Date
2014-05-20
Related Report
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[Presentation] Classification of stroke pattern of dugongs in Dungonab Bay, Sudan by using an acoustic data logger2014
Author(s)
Ichikawa, Kotaro, Khalf alla Adm, Badr Eldinn, Arai, Nobuaki, Gaiballa, Abdelmoneim Karamalla, Nawata, Hiroshi
Organizer
20th Symposium of the International Society on Biotelemetry
Place of Presentation
Kyoto
Year and Date
2014-05-20
Related Report
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[Presentation] Acoustic bio-logging of dugongs in Dungonab Bay, Sudan2013
Author(s)
ICHIKAWA, Kotaro, Khalf alla Adm, Badr Eldinn, ARAI, Nobuaki, Karamalla Gaiballa, Abdelmoneim, NAWATA, Hiroshi
Organizer
20th Biennial Conference on the Biology of Marine Mammals
Place of Presentation
Otago University, New Zealand
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[Book] 科学2013
Author(s)
市川光太郎（分担執筆）
Total Pages
82
Publisher
岩波書店
Related Report
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