Social structure of young male sperm whales and its determinant factors
Project/Area Number |
21570020
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Single-year Grants |
Section | 一般 |
Research Field |
Ecology/Environment
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Research Institution | Nagasaki University |
Principal Investigator |
AMANO Masao 長崎大学, 大学院・水産・環境科学総合研究科, 教授 (50270905)
|
Co-Investigator(Renkei-kenkyūsha) |
NOBUYUKI Miyazaki 海洋政策研究財団, 主任研究員 (40101464)
MOTOI Yoshioka 三重大学, 生物資源学部, 教授 (30262992)
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Research Collaborator |
AYA Kourogi 長崎大学, 大学院水産・環境科学総合研究科, 技能補佐員(実験助手)
HARUKO Sato シーライフ・ウオッチ, 代表
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Project Period (FY) |
2009 – 2011
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Project Status |
Completed (Fiscal Year 2011)
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Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2011: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2010: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2009: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
|
Keywords | 鯨類 / ハクジラ類 / マッコウクジラ / 社会構造 / マツコウクジラ |
Research Abstract |
We examined social structure based on photo-identification and habitat use pattern based on land-based observation for young male sperm whales feeding in the Nemuro Strait in summer. Social structure of young male sperm whales is multilevel ; long lasting units temporally associate for a short time, and they showed clear diurnal movement pattern. High predation pressure and cooperation in feeding are considered to be major drives for their multilevel society and habitat use pattern.
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Report
(4 results)
Research Products
(22 results)
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[Journal Article]2009
Author(s)
Mori, K., Yoshioka, M., Amano, M.
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Journal Title
The Wild Mammals of Japan(Shoukadou)
Pages: 336-337
Related Report
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[Presentation] Diumal horizontal movement of sperm whales in the Nemuro Strait, Hokkaido, Japan2011
Author(s)
Amano, M., Sueishi, Y., Kourigi, A., Sato, H.
Organizer
19th Biennial Conference on the Biology of Marine Mammals
Place of Presentation
Tamapa Convention Center, Florida, USA
Year and Date
2011-11-29
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