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Estimated detection distance of a baiji's (Chinese river dolphin, Lipotes vexillifer) whistles using a passive acoustic survey method
Wang, Kexiong; Wang, Ding; Akamatsu, Tomonari; Fujita, Kaoru; Shiraki, Rika; Wang, K, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2006-09-01
Source PublicationJOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
ISSN0001-4966
Volume120Issue:3Pages:1361-1365
AbstractSource 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.; 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.
SubtypeArticle
KeywordFinless Porpoises Behavior
DepartmentChinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Fisheries Res Agcy, Natl Res Inst Fisheries Engn, Kamisu, Ibaraki 3140408, Japan
Subject AreaAcoustics
DOI10.1121/1.2221416
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
Indexed BySCI
Language英语
WOS Research AreaAcoustics ; Audiology & Speech-Language Pathology
WOS SubjectAcoustics ; Audiology & Speech-Language Pathology
WOS IDWOS:000240474100023
WOS KeywordFINLESS PORPOISES ; BEHAVIOR
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Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8836
Collection期刊论文
Corresponding AuthorWang, K, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Affiliation1.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
GB/T 7714
Wang, Kexiong,Wang, Ding,Akamatsu, Tomonari,et al. Estimated detection distance of a baiji's (Chinese river dolphin, Lipotes vexillifer) whistles using a passive acoustic survey method[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2006,120(3):1361-1365.
APA Wang, Kexiong,Wang, Ding,Akamatsu, Tomonari,Fujita, Kaoru,Shiraki, Rika,&Wang, K, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2006).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,120(3),1361-1365.
MLA Wang, Kexiong,et al."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 120.3(2006):1361-1365.
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