IHB OpenIR  > 期刊论文
Comparison between visual and passive acoustic detection of finless porpoises in the Yangtze river, China
Akamatsu, T; Wang, D; Wang, KX; Wei, Z; Akamatsu, T, Natl Res Inst Fisheries Engn, Kashiwa, Chiba 3140421, Japan
2001
Source PublicationJOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Volume109Issue:4Pages:1723-1727
AbstractRecently, sonar signals and other sounds produced by cetaceans have been used for acoustic detection of individuals and groups in the wild. However, the detection probability ascertained by concomitant visual survey has not been demonstrated extensively. The finless porpoises (Neophocaena phocaenoides) have narrow band and high-frequency sonar signals, which are distinctive from background noises. Underwater sound monitoring with hydrophones (B&K8103) placed along the sides of a research vessel, concurrent with visual observations was conducted in the Yangtze River from Wuhan to Poyang Lake in 1998 in China. The peak to peak detection threshold was set at 133 dB re 1 mu Pa. With this threshold level, porpoises could be detected reliably within 300 m of the hydrophone. In a total of 774-km cruise, 588 finless porpoises were sighted by visual observation and 44 864 ultrasonic pulses were recorded by the acoustical observation system. The acoustic monitoring system could detect the presence of the finless porpoises 82% of the time. A false alarm in the system occurred with a frequency of 0.9%. The high-frequency acoustical observation is suggested as an effective method for field surveys of small cetaceans, which produce high-frequency sonar signals. (C) 2001 Acoustical Society of America.
KeywordNeophocaena-phocaenoides Echolocation Signals Phocoena-phocoena Localization Density Range
DepartmentNatl Res Inst Fisheries Engn, Kashiwa, Chiba 3140421, Japan; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Subject AreaAcoustics
Indexed BySCI
WOS IDWOS:000167932600042
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/10016
Collection期刊论文
Corresponding AuthorAkamatsu, T, Natl Res Inst Fisheries Engn, Kashiwa, Chiba 3140421, Japan
Recommended Citation
GB/T 7714
Akamatsu, T,Wang, D,Wang, KX,et al. Comparison between visual and passive acoustic detection of finless porpoises in the Yangtze river, China[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2001,109(4):1723-1727.
APA Akamatsu, T,Wang, D,Wang, KX,Wei, Z,&Akamatsu, T, Natl Res Inst Fisheries Engn, Kashiwa, Chiba 3140421, Japan.(2001).Comparison between visual and passive acoustic detection of finless porpoises in the Yangtze river, China.JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,109(4),1723-1727.
MLA Akamatsu, T,et al."Comparison between visual and passive acoustic detection of finless porpoises in the Yangtze river, China".JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 109.4(2001):1723-1727.
Files in This Item:
File Name/Size DocType Version Access License
Comparison between v(62KB) 开放获取--View Application Full Text
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Akamatsu, T]'s Articles
[Wang, D]'s Articles
[Wang, KX]'s Articles
Baidu academic
Similar articles in Baidu academic
[Akamatsu, T]'s Articles
[Wang, D]'s Articles
[Wang, KX]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Akamatsu, T]'s Articles
[Wang, D]'s Articles
[Wang, KX]'s Articles
Terms of Use
No data!
Social Bookmark/Share
File name: Comparison between visual and passive acoustic detection of finless porpoises in the Yangtze river, China.pdf
Format: Adobe PDF
This file does not support browsing at this time
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.