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Hokkaido University Collection of Scholarly and Academic Papers >
Graduate School of Fisheries Sciences / Faculty of Fisheries Sciences >
北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University >
第61巻 第2/3号 >
2003， 2005～2009 年，練習船おしょろ丸からの目視調査によるシャチ (Orcinus orca) の写真識別カタログ
| Title: | 2003， 2005～2009 年，練習船おしょろ丸からの目視調査によるシャチ (Orcinus orca) の写真識別カタログ |
| Other Titles: | Photographic Identification Catalogue of Killer Whales Orcinus orca Sighted during T/S Oshoro-maru Cruise in 2003, 2005-2009 |
| Authors: | 三谷, 曜子1 Browse this author | | 岡崎, 宏美2 Browse this author | | 関口, 圭子3 Browse this author | | 宮下, 和士4 Browse this author →KAKEN DB |
| Authors(alt): | Mitani, Yoko1 | | Okazaki, Hiromi2 | | Sekiguchi, Keiko3 | | Miyashita, Kazushi4 |
| Keywords: | Orcinus orca | | Photo identification | | T/S Oshoro-maru |
| Issue Date: | 26-Dec-2011 |
| Publisher: | 北海道大学大学院水産科学研究院 |
| Journal Title: | 北海道大学水産科学研究彙報 |
| Journal Title(alt): | Bulletin of Fisheries Sciences, Hokkaido University |
| Volume: | 61 |
| Issue: | 2/3 |
| Start Page: | 65 |
| End Page: | 74 |
| Abstract: | Killer whales Orcinus orca are cosmopolitan in distribution, but study sites are restricted to small geographic areas, primarily shore-based and boat-based studies focusing on nearshore areas. To contribute understanding about the biology of killer whales in pelagic areas, we created photographic identification catalogue of killer whales sighted during T/S Oshoro-maru cruise to the northern North Pacific, Bering Sea and Chukchi Sea in 2003, 2005-2009. For 6 years, 37 groups were found, containing 182 whales, and 29 individuals were identified from left side photos of dorsal fin. No individual was re-sighted within-year, nor between-year. And no matches were found between killer whales observed in Alaska, Russian far east seas, Kushiro and Shiretoko, Japan. Our result can serve as background information for the future study of pelagic killer whales. |
| Type: | bulletin (article) |
| URI: | http://hdl.handle.net/2115/48640 |
| Appears in Collections: | 北海道大学水産科学研究彙報 = Bulletin of Fisheries Sciences, Hokkaido University > 第61巻 第2/3号
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