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Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers
Li, Songhai1; Akamatsu, Tomonari2; Wang, Ding1; Wang, Kexiong1; Wang, D, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2009-07-01
Source PublicationJOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
ISSN0001-4966
Volume126Issue:1Pages:468-475
AbstractCetaceans 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.; 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.
SubtypeArticle
KeywordBioacoustics Data Loggers Hydrophones
Department[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
Subject AreaAcoustics
DOI10.1121/1.3147507
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
Funding OrganizationNational Basic Research Program of China [2007CB411600]; Chinese National Natural Science Foundation [30730018]; Ocean Park Conservation Foundation of Hong Kong (OPCFHK) ; National Basic Research Program of China [2007CB411600]; Chinese National Natural Science Foundation [30730018]; Ocean Park Conservation Foundation of Hong Kong (OPCFHK) ; National Basic Research Program of China [2007CB411600]; Chinese National Natural Science Foundation [30730018]; Ocean Park Conservation Foundation of Hong Kong (OPCFHK) ; National Basic Research Program of China [2007CB411600]; Chinese National Natural Science Foundation [30730018]; Ocean Park Conservation Foundation of Hong Kong (OPCFHK)
Indexed BySCI
Language英语
WOS Research AreaAcoustics ; Audiology & Speech-Language Pathology
WOS SubjectAcoustics ; Audiology & Speech-Language Pathology
WOS IDWOS:000268065100058
WOS KeywordNEOPHOCAENA-PHOCAENOIDES ; PHYSETER-MACROCEPHALUS ; ECHOLOCATION SIGNALS ; DIVING BEHAVIOR ; YANGTZE-RIVER ; BEAM PATTERN ; GAIN-CONTROL ; WHALES ; WATER ; CLICK
Funding OrganizationNational Basic Research Program of China [2007CB411600]; Chinese National Natural Science Foundation [30730018]; Ocean Park Conservation Foundation of Hong Kong (OPCFHK) ; National Basic Research Program of China [2007CB411600]; Chinese National Natural Science Foundation [30730018]; Ocean Park Conservation Foundation of Hong Kong (OPCFHK) ; National Basic Research Program of China [2007CB411600]; Chinese National Natural Science Foundation [30730018]; Ocean Park Conservation Foundation of Hong Kong (OPCFHK) ; National Basic Research Program of China [2007CB411600]; Chinese National Natural Science Foundation [30730018]; Ocean Park Conservation Foundation of Hong Kong (OPCFHK)
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Cited Times:18[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/7648
Collection期刊论文
Corresponding AuthorWang, D, 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, NRIFE, Ibaraki 3140408, Japan
Recommended Citation
GB/T 7714
Li, Songhai,Akamatsu, Tomonari,Wang, Ding,et al. Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2009,126(1):468-475.
APA Li, Songhai,Akamatsu, Tomonari,Wang, Ding,Wang, Kexiong,&Wang, D, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China.(2009).Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers.JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,126(1),468-475.
MLA Li, Songhai,et al."Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers".JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 126.1(2009):468-475.
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