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题名: Acoustic capture-recapture method for towed acoustic surveys of echolocating porpoises
作者: Kimura, Satoko1; Akamatsu, Tomonari2, 6; Dong, Lijun3; Wang, Kexiong3; Wang, Ding3; Shibata, Yasutoki4; Arai, Nobuaki5, 6
关键词: LINE TRANSECT SURVEYS ; FINLESS PORPOISES ; NEOPHOCAENA-PHOCAENOIDES ; POPULATION-DENSITY ; ABUNDANCE ; SIGNALS ; CETACEANS ; BEHAVIOR ; DOLPHINS
刊名: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
发表日期: 2014-06-01
DOI: 10.1121/1.4875710
卷: 135, 期:6, 页:3364-3370
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Technology ; Life Sciences & Biomedicine
类目[WOS]: Acoustics ; Audiology & Speech-Language Pathology
研究领域[WOS]: Acoustics ; Audiology & Speech-Language Pathology
英文摘要: Passive acoustic monitoring for cetaceans mainly employ fixed-location methods or point transect samplings; an acoustic survey from a moving platform to conduct line transects is less common. In this study, acoustic capture-recapture by combining a double-observer method with line transect sampling was performed to observe Yangtze finless porpoises. Two acoustic devices were towed with the distance between them varying 0.5 to 89.5 m. The conditional probabilities that both devices would detect the porpoises within the same time window were calculated. In a 1-s time window, it became smaller as the distance between the devices increased, approaching zero when the distance between them was more than 50 m. It was considered that the devices with less than 50m distance detected the same signals from the same animals, which means the identical detection. When the distance between them is too great, the recapture rate is reduced and the incidence of false matching may increase. Thus, a separation distance of around 50m between two devices in acoustic capture-recapture of Yangtze finless porpoises was recommended. Note that the performance of the double detections can change depending on the particular device used and on animal behaviors such as vocalizing interval, ship avoidance. (C) 2014 Acoustical Society of America.
关键词[WOS]: YANGTZE FINLESS PORPOISES ; LINE TRANSECT SURVEYS ; NEOPHOCAENA-PHOCAENOIDES ; POPULATION-DENSITY ; DATA-LOGGERS ; ABUNDANCE ; SIGNALS ; CETACEANS ; BEHAVIOR ; DOLPHINS
语种: 英语
WOS记录号: WOS:000337110200039
ISSN号: 0001-4966
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/20288
Appears in Collections:水生生物多样性与资源保护研究中心_期刊论文

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作者单位: 1.Kyoto Univ, Grad Sch Informat, Sakyo Ku, Kyoto 6068501, Japan
2.Fisheries Res Agcy, Natl Res Inst Fisheries Engn, Kamisu, Ibaraki 3140408, Japan
3.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China
4.Fisheries Res Agcy, Tohoku Natl Fisheries Res Inst, Same, Aomori 0310841, Japan
5.Kyoto Univ, Field Sci Educ Res Ctr, Sakyo Ku, Kyoto 6068502, Japan
6.Japan Sci & Technol Agcy, CREST, Chiyoda Ku, Tokyo 1020075, Japan
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