Diversity and environmental adaptation of functional morphology of marine mammals

• Project/Area Number: 23570103
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Biodiversity/Systematics
• Research Institution: Obihiro University of Agriculture and Veterinary Medicine
• Principal Investigator: SASAKI Motoki 帯広畜産大学, 畜産学部, 准教授 (50332482)
• Co-Investigator(Kenkyū-buntansha): YAMADA Kazutaka 帯広畜産大学, 畜産学部, 教授 (80292093) ; ENDO Hideki 東京大学, 学内共同利用施設等, 教授 (30249908)
• Project Period (FY): 2011 – 2013
• Project Status: Completed (Fiscal Year 2013)
• Budget Amount: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000); Fiscal Year 2013: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000); Fiscal Year 2012: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000); Fiscal Year 2011: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
• Keywords: 海生哺乳類 / 多様性 / 機能形態 / 鰭脚類 / 鯨類 / CT / 骨格 / アザラシ / ネズミイルカ

Research Abstract

In this study, the fore- and hindlimbs of the harbor seal and the forelimbs of the harbor porpoise were examined three dimensionally to analyze the motion range using CT scanner. In the harbor seal, the broad motion range of tarsal joint with lateral and medial motion was observed. Moreover, the flexion and extension of the shoulder and elbow joints buried within trunk and the pronation of forearm were recognized. In the harbor porpoise, the motion of forelimbs was accompanied by almost none of scapular movement, and the circumnutation of forearms was not confirmed.

Research Products

• [Journal Article] The Structure of the Masticatory Muscles in the Arctic Fox (<I>Vulpes lagopus</I>) (2013)
  • Author(s): Motoki SASAKI, Eva FUGLEI, Oystein WIIG,Yutaka FUKUI, Nobuo KITAMURA.
  • Journal Title: Japanese Journal of Zoo and Wildlife Medicine Volume: 18 Issue: 1 Pages: 23-27
  • DOI: 10.5686/jjzwm.18.23
  • NAID: 10031138524
  • ISSN: 1342-6133, 2185-744X
  • Peer Reviewed
• [Journal Article] Structure and Steroidogenesis of the Placenta in the Antarctic Minke Whale (<i>Balaenoptera bonaerensis</i>) (2013)
  • Author(s): Motoki SASAKI, Yoko AMANO, Daisuke, HAYAKAWA, Toshio TSUBOTA, Hajime ISHIKAWA, Toshihiro MOGOE, Seiji OHSUMI,Masafumi TETSUKA, Akio MIYAMOTO, Yutaka FUKUI.
  • Journal Title: Journal of Reproduction and Development Volume: 59 Issue: 2 Pages: 159-167
  • DOI: 10.1262/jrd.2012-132
  • NAID: 10031170774
  • ISSN: 0916-8818, 1348-4400
  • Peer Reviewed
• [Journal Article] Structure and Steroidogenesis of the Placenta in the Antarctic Minke Whale (Balaenoptera bonaerensis) (2013)
  • Author(s): Motoki SASAKI, Yoko AMANO, Daisuke HAYAKAWA, Toshio TSUBOTA, Hajime ISHIKAWA, Toshihiro MOGOE, Seiji OHSUMI, Masafumi TETSUKA, Akio MIYAMOTO, Yutaka FUKUI, Teguh BUDIPITOJO, Nobuo KITAMURA
  • Journal Title: Journal of Reproduction and Development Volume: 59 Pages: 159-167
  • NAID: 10031170774
  • Peer Reviewed