| Project/Area Number |
19380112
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| Research Category |
Grant-in-Aid for Scientific Research (B)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
General fisheries
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| Research Institution | Mie University |
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Principal Investigator |
YOSHIOKA Motoi Mie University, 大学院・生物資源学研究科, 教授 (30262992)
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| Co-Investigator(Kenkyū-buntansha) |
KOHSHIMA Shiro 京都大学, 野生動物研究センター, 教授 (60183802)
天野 雅男 帝京科学大学, 理工学部, 准教授 (50270905)
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| Co-Investigator(Renkei-kenkyūsha) |
AMANO Masao 長崎大学, 水産学部, 教授 (50270905)
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| Research Collaborator |
ARAI Kazutoshi 鴨川シーワールド, 館長
UCHIDA Senzo 沖縄美ら海水族館, 館長
OTANI Seiji 日本鯨類研究所, 調査部, 研究員
KOGI Kazunobu 御蔵島観光協会, 理事
SAKAI Mai 東京大学, 生命科学ネットワーク, 特任助教 (40512299)
SHIRAKIHARA Miki 東邦大学, 理学部, 訪問研究員 (30449251)
SEKIGUCHI Yusuke 千葉商科大学, 商経学部, 准教授 (50420386)
HAYANO Azusa 京都大学, 野生動物研究センター, 教務補佐員 (10379018)
MORI Kyoichi 帝京科学大学, 生命環境学部, 准教授 (20570708)
MORISAKA Tadamichi 京都大学, 野生動物研究センター, 特定助教 (00422923)
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| Project Period (FY) |
2007 – 2010
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| Project Status |
Completed (Fiscal Year 2010)
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| Budget Amount *help |
¥15,600,000 (Direct Cost: ¥12,000,000、Indirect Cost: ¥3,600,000)
Fiscal Year 2010: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2009: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2008: ¥5,200,000 (Direct Cost: ¥4,000,000、Indirect Cost: ¥1,200,000)
Fiscal Year 2007: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
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| Keywords | 鯨類 / ミナミハンドウイルカ / Tursiops / 個体群 / 分布 / 社会行動 / ホルモン / 生理 / 保全 / 行動観察 / 血液性状 / 遺伝子解析 / イルカ / 海生哺乳類 / 生態・保全 / 衛星標識 / 鳥島 / 御蔵島 / 生態 / 水族館 / 衛星追跡 |
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| Research Abstract |
Distribution, genetic relationship among local populations, behavior and reproductive physiology were studied for the conservation of Indo-Pacific bottlenose dolphins around Japan. In Amami Is.area where the species was first reported in Japan, more than 50 dolphins were photo-identified by boat-based surveys. A population was found around Torishima Is., Tokyo for the first time and it is genetically related to Mikura and Ogasawara populations. Frequency of social behaviors of the wild dolphins around Mikura Is.varied with sex and developmental stage. Male reproductive activity was higher in spring to fall seasons.
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