| Project/Area Number |
15255003
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 海外学術 |
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| Research Field |
Environmental dynamic analysis
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| Research Institution | The University of Tokyo (2004-2006)
National Institute of Polar Research (2003) |
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Principal Investigator |
SATO Katsufumi The University of Tokyo, Ocean Research Institute, Associate professor, 海洋研究所, 助教授 (50300695)
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| Co-Investigator(Kenkyū-buntansha) |
ARAI Nobuaki Kyoto University, Graduate School of Informatics, Associate Professor, 大学院情報学研究科, 助教授 (20252497)
AKAMATSU Tomonari National Research Institute of Fisheries Engineering, Senior Researcher, 水産工学研究所, 主任研究官 (00344333)
WATANUKI Yutaka Hokkaido University, Graduate School of Fisheries Sciences, Associate Professor, 大学院水産科学研究院, 助教授 (40192819)
SAKAMOTO Wataru Kinki University, Fisheries Laboratory, Professor, 水産研究所, 教授 (50013587)
TAKAHASHI Akinori National Institute of Polar Research, Associate professor, 研究教育系, 助教授 (40413918)
内藤 靖彦 国立極地研究所, 研究系, 教授 (80017087)
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| Project Period (FY) |
2003 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥32,240,000 (Direct Cost: ¥24,800,000、Indirect Cost: ¥7,440,000)
Fiscal Year 2006: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2005: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2004: ¥8,450,000 (Direct Cost: ¥6,500,000、Indirect Cost: ¥1,950,000)
Fiscal Year 2003: ¥13,650,000 (Direct Cost: ¥10,500,000、Indirect Cost: ¥3,150,000)
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| Keywords | bio-logging / data logger / penguin / turtle / Antarctica / seal / オオミズナギドリ / 亜南極 / Satellite Relayed Data Logger / 小笠原 / プリビロフ / エンペラーペンギン / アオウミガメ / ジュゴン / タイ |
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| Research Abstract |
Bio-logging science, the use of small, data-logging electronic devices on animals, provides the capacity for researchers to examine oceanographic environment that define critical habitat of aquatic animals. The aim of this project is to develop new technique to monitor animal behavior in relation to their surrounding environments. Field studies were conducted at various places from tropical region to Antarctica. Target species were many aquatic animals such as fishes, reptile, seabirds and marine mammals.
For example, we examined the diving behavior of thick-billed murres (Uria lomvia) at St. George Island, southeastern Bering Sea, in relation to sea surface temperature and thermocline depth using ventrally attached depth-temperature recorders. Murres dove deeper in the mixed water mass, than in the stratified water, where most dives were to just below the thermocline depth. It suggests that the thermocline is important in shaping dive profiles of seabirds, possibly through its effect on the vertical distribution of both zooplankton and fish prey.
In other case, animal-borne cameras deployed on Weddell seals revealed that the underside of an Antarctic ice shelf was covered by aggregated invertebrate communities, most likely cnidarians and isopods. This observation indicates that, similar to the sea floor, ice shelves serve as an important habitat for a remarkable amount of marine invertebrate fauna in Antarctica, and seals are effective for collecting oceanographic environment in severe condition.
In conclusion, marine animals are favorable platforms for oceanographic sampling and bio-logging science is highly available to investigate aquatic animal behavior and physiology in relation to their surrounding environments.
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