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Tracking Kuril harbor seals (Phoca vitulina stejnegeri) at Cape Erimo using a new mobile phone telemetry system

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Title: Tracking Kuril harbor seals (Phoca vitulina stejnegeri) at Cape Erimo using a new mobile phone telemetry system
Other Titles: 携帯電話ネットワークを利用した、襟裳岬におけるゼニガタアザラシのテレメトリー調査
Authors: Fujii, Kei1 Browse this author →KAKEN DB
Suzuki, Masatsugu2 Browse this author →KAKEN DB
Era, Satoshi3 Browse this author
Kobayashi, Mari4 Browse this author
Ohtaishi, Noriyuki5 Browse this author
Authors(alt): 藤井, 啓1
鈴木, 正嗣2
江良, 聡3
小林, 万里4
大泰司, 紀之5
Keywords: Kuril harbor seal
Phoca vitulina stejnegeri
mobile phone telemetry
GPS
diving behavior
Issue Date: 2006
Publisher: Japanese Society of Livestock Management and Japanese Society for Applied Animal Behaviour, 日本家畜管理学会, 応用動物行動学会
Journal Title: Animal Behavior and Management
Volume: 42
Issue: 3
Start Page: 181
End Page: 189
Abstract: We developed a tracking unit that uses the Japanese mobile phone network to transmit data from Kuril harbor seals (Phoca vitulina stejnegeri), which are difficult to recapture. The unit senses location by GPS, hauling-out status, depth and temperature. Six wild Kuril harbor seal pups were tracked at Cape Erimo, Japan, in summer. GPS data indicated that the seals hauled out only on insular rocks in a known haul-out site at Cape Erimo. Although the data of hauling-out status were limited in accuracy, they at least indicated the seals often hauled out both at daytime and at nighttime. The depth logs of four of the seals were analyzed. The greatest depth recorded was 131m. Of the depth logs >1 m, 98% were <50 m. The seals may tend to use deep water when nearshore water is rough. Three of four seals tended to have depth logs distributed at about 30 m. The seals tended to spend more time at shallow depths at night than at other times.
Type: article
URI: http://hdl.handle.net/2115/14758
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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