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学科主题: Acoustics
题名: Estimated detection distance of a baiji's (Chinese river dolphin, Lipotes vexillifer) whistles using a passive acoustic survey method
作者: Wang, Kexiong; Wang, Ding; Akamatsu, Tomonari; Fujita, Kaoru; Shiraki, Rika
通讯作者: Wang, K, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: FINLESS PORPOISES ; BEHAVIOR
刊名: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
发表日期: 2006-09-01
DOI: 10.1121/1.2221416
卷: 120, 期:3, 页:1361-1365
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Fisheries Res Agcy, Natl Res Inst Fisheries Engn, Kamisu, Ibaraki 3140408, Japan
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
摘要: Source levels and phonation intervals of whistles produced by a free-ranging baiji (Chinese river dolphin) were measured in the seminatural reserve of Shishou in Hubei, China. A total of 43 whistles were recorded over 12 recording sessions. The mean dominant frequency (the frequency at the highest energy) was 5.7 kHz (s.d.=0.67). The calculated source level was 143.2 dB rms re 1 mu Pa (s.d.=5.8). Most phonation intervals were shorter than 460 s, and the average interval was 205 s (s.d. = 254). Theoretical detection range of baiji's whistle was 6600 m at the present study site, but it could reduce a couple of hundred meters in practical noisy situation in the Yangtze River. Sporadic phonation (205 s interval on average) with relatively faint signal of baiji was considered, to be difficult to be detected by a towing hydrophone system. Stationed monitoring or slow speed towing of hydrophones along the river current is recommended. (c) 2006 Acoustical Society of America.
英文摘要: Source levels and phonation intervals of whistles produced by a free-ranging baiji (Chinese river dolphin) were measured in the seminatural reserve of Shishou in Hubei, China. A total of 43 whistles were recorded over 12 recording sessions. The mean dominant frequency (the frequency at the highest energy) was 5.7 kHz (s.d.=0.67). The calculated source level was 143.2 dB rms re 1 mu Pa (s.d.=5.8). Most phonation intervals were shorter than 460 s, and the average interval was 205 s (s.d. = 254). Theoretical detection range of baiji's whistle was 6600 m at the present study site, but it could reduce a couple of hundred meters in practical noisy situation in the Yangtze River. Sporadic phonation (205 s interval on average) with relatively faint signal of baiji was considered, to be difficult to be detected by a towing hydrophone system. Stationed monitoring or slow speed towing of hydrophones along the river current is recommended. (c) 2006 Acoustical Society of America.
关键词[WOS]: FINLESS PORPOISES ; BEHAVIOR
语种: 英语
WOS记录号: WOS:000240474100023
ISSN号: 0001-4966
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/8836
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Fisheries Res Agcy, Natl Res Inst Fisheries Engn, Kamisu, Ibaraki 3140408, Japan

Recommended Citation:
Wang, Kexiong; Wang, Ding; Akamatsu, Tomonari; Fujita, Kaoru; Shiraki, Rika.Estimated detection distance of a baiji's (Chinese river dolphin, Lipotes vexillifer) whistles using a passive acoustic survey method,JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2006,120(3):1361-1365
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