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学科主题: Acoustics
题名: Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers
作者: Li, Songhai1; Akamatsu, Tomonari2; Wang, Ding1; Wang, Kexiong1
通讯作者: Wang, D, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: bioacoustics ; data loggers ; hydrophones
刊名: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
发表日期: 2009-07-01
DOI: 10.1121/1.3147507
卷: 126, 期:1, 页:468-475
收录类别: SCI
文章类型: Article
部门归属: [Li, Songhai; Wang, Ding; Wang, Kexiong] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Akamatsu, Tomonari] Fisheries Res Agcy, NRIFE, Ibaraki 3140408, Japan
WOS标题词: Science & Technology ; Technology ; Life Sciences & Biomedicine
资助者: National Basic Research Program of China [2007CB411600]; Chinese National Natural Science Foundation [30730018]; Ocean Park Conservation Foundation of Hong Kong (OPCFHK)
类目[WOS]: Acoustics ; Audiology & Speech-Language Pathology
研究领域[WOS]: Acoustics ; Audiology & Speech-Language Pathology
摘要: Cetaceans produce sound signals frequently. Usually, acoustic localization of cetaceans was made by cable hydrophone arrays and multichannel recording systems. In this study, a simple and relatively inexpensive towed acoustic system consisting of two miniature stereo acoustic data-loggers is described for localization and tracking of finless porpoises in a mobile survey. Among 204 porpoises detected acoustically, 34 individuals (similar to 17%) were localized, and 4 of the 34 localized individuals were tracked. The accuracy of the localization is considered to be fairly high, as the upper bounds of relative distance errors were less than 41% within 173 m. With the location information, source levels of finless porpoise clicks were estimated to range from 180 to 209 dB re 1 mu Pa pp at 1 m with an average of 197 dB (N=34), which is over 20 dB higher than that estimated previously from animals in enclosed waters. For the four tracked porpoises, two-dimensional swimming trajectories relative to the moving survey boat, absolute swimming speed, and absolute heading direction are deduced by assuming the animal movements are straight and at constant speed in the segment between two consecutive locations.
英文摘要: Cetaceans produce sound signals frequently. Usually, acoustic localization of cetaceans was made by cable hydrophone arrays and multichannel recording systems. In this study, a simple and relatively inexpensive towed acoustic system consisting of two miniature stereo acoustic data-loggers is described for localization and tracking of finless porpoises in a mobile survey. Among 204 porpoises detected acoustically, 34 individuals (similar to 17%) were localized, and 4 of the 34 localized individuals were tracked. The accuracy of the localization is considered to be fairly high, as the upper bounds of relative distance errors were less than 41% within 173 m. With the location information, source levels of finless porpoise clicks were estimated to range from 180 to 209 dB re 1 mu Pa pp at 1 m with an average of 197 dB (N=34), which is over 20 dB higher than that estimated previously from animals in enclosed waters. For the four tracked porpoises, two-dimensional swimming trajectories relative to the moving survey boat, absolute swimming speed, and absolute heading direction are deduced by assuming the animal movements are straight and at constant speed in the segment between two consecutive locations.
关键词[WOS]: NEOPHOCAENA-PHOCAENOIDES ; PHYSETER-MACROCEPHALUS ; ECHOLOCATION SIGNALS ; DIVING BEHAVIOR ; YANGTZE-RIVER ; BEAM PATTERN ; GAIN-CONTROL ; WHALES ; WATER ; CLICK
语种: 英语
WOS记录号: WOS:000268065100058
ISSN号: 0001-4966
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/7648
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, NRIFE, Ibaraki 3140408, Japan

Recommended Citation:
Li, Songhai; Akamatsu, Tomonari; Wang, Ding; Wang, Kexiong.Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers,JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2009,126(1):468-475
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