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襟裳岬におけるゼニガタアザラシ(Phoca vitulina stejnegeri)の標識と計測

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Title: 襟裳岬におけるゼニガタアザラシ(Phoca vitulina stejnegeri)の標識と計測
Other Titles: Tagging and measuring of Harbor seals (Phoca vitulina stejnegeri) in Erimo Cape, Japan
Authors: 藤井, 啓1 Browse this author
石川, 朋子2 Browse this author
渡邊, 有希子3 Browse this author
齋藤, 幸子4 Browse this author
中川, 恵美子5 Browse this author
小林, 由美6 Browse this author
Authors(alt): Fujii, K1
Ishikawa, T2
Watanabe, Y3
Saito, S4
Nakagawa, E5
Kobayashi, Y6
Keywords: ゼニガタアザラシ
Phoca vitulina stejnegeri
Issue Date: 31-Mar-2005
Publisher: えりも町郷土資料館・水産の館
Journal Title: えりも研究 : えりも町郷土資料館調査研究報告
Volume: 2
Start Page: 1
End Page: 8
Abstract: 138 harbor seals (Phoca vitulina stejnegeri), 3 larga seals (P. Largha), 1 ringed seal (P. hispida) and 3 undiscriminated seal were measured from 1990 to 2004 in Erimo Cape, Japan. They were captured with dip net or caught in fixed salmon net. Living seals were released after tagging. 4 of 10 pups, which were tagged on Jun in 2004, were caught in fixed salmon net in that autumn. By-catch may be one of serious problem for pups. Sexual dimorphism of harbor seal pups was not recognized statistically. Mean length of one-month-old harbor seal pups in Erimo (male: 96.6 cm, female: 93.3 cm) were shorter than the mean length of harbor seal (P. v. s.) pups in Nemuro, Japan. In autumn, mean length of harbor seal pups in Erimo also shorter than that in Nemro.
Type: article (author version)
Appears in Collections:獣医学院・獣医学研究院 (Graduate School of Veterinary Medicine / Faculty of Veterinary Medicine) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 藤井 啓

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