Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers
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 describ...
Published in: | The Journal of the Acoustical Society of America |
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ftchinacadsciihb:oai:ir.ihb.ac.cn:152342/7648 2023-05-15T17:59:29+02:00 Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers Li, Songhai Akamatsu, Tomonari Wang, Ding Wang, Kexiong Wang, D, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China 2009-07-01 http://ir.ihb.ac.cn/handle/152342/7648 https://doi.org/10.1121/1.3147507 英语 eng JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 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 http://ir.ihb.ac.cn/handle/152342/7648 doi:10.1121/1.3147507 Bioacoustics Data Loggers Hydrophones Acoustics Science & Technology Technology Life Sciences & Biomedicine Audiology & Speech-Language Pathology NEOPHOCAENA-PHOCAENOIDES PHYSETER-MACROCEPHALUS ECHOLOCATION SIGNALS DIVING BEHAVIOR YANGTZE-RIVER BEAM PATTERN GAIN-CONTROL WHALES WATER CLICK Article 期刊论文 2009 ftchinacadsciihb https://doi.org/10.1121/1.3147507 2019-07-01T11:26:37Z 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. 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. Article in Journal/Newspaper Physeter macrocephalus Institute of Hydrobiology, Chinese Academy of Sciences: IHB OpenIR The Journal of the Acoustical Society of America 126 1 468 475 |
institution |
Open Polar |
collection |
Institute of Hydrobiology, Chinese Academy of Sciences: IHB OpenIR |
op_collection_id |
ftchinacadsciihb |
language |
English |
topic |
Bioacoustics Data Loggers Hydrophones Acoustics Science & Technology Technology Life Sciences & Biomedicine Audiology & Speech-Language Pathology NEOPHOCAENA-PHOCAENOIDES PHYSETER-MACROCEPHALUS ECHOLOCATION SIGNALS DIVING BEHAVIOR YANGTZE-RIVER BEAM PATTERN GAIN-CONTROL WHALES WATER CLICK |
spellingShingle |
Bioacoustics Data Loggers Hydrophones Acoustics Science & Technology Technology Life Sciences & Biomedicine Audiology & Speech-Language Pathology NEOPHOCAENA-PHOCAENOIDES PHYSETER-MACROCEPHALUS ECHOLOCATION SIGNALS DIVING BEHAVIOR YANGTZE-RIVER BEAM PATTERN GAIN-CONTROL WHALES WATER CLICK Li, Songhai Akamatsu, Tomonari Wang, Ding Wang, Kexiong Wang, D, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers |
topic_facet |
Bioacoustics Data Loggers Hydrophones Acoustics Science & Technology Technology Life Sciences & Biomedicine Audiology & Speech-Language Pathology NEOPHOCAENA-PHOCAENOIDES PHYSETER-MACROCEPHALUS ECHOLOCATION SIGNALS DIVING BEHAVIOR YANGTZE-RIVER BEAM PATTERN GAIN-CONTROL WHALES WATER CLICK |
description |
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. 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. |
format |
Article in Journal/Newspaper |
author |
Li, Songhai Akamatsu, Tomonari Wang, Ding Wang, Kexiong Wang, D, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
author_facet |
Li, Songhai Akamatsu, Tomonari Wang, Ding Wang, Kexiong Wang, D, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
author_sort |
Li, Songhai |
title |
Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers |
title_short |
Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers |
title_full |
Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers |
title_fullStr |
Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers |
title_full_unstemmed |
Localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers |
title_sort |
localization and tracking of phonating finless porpoises using towed stereo acoustic data-loggers |
publishDate |
2009 |
url |
http://ir.ihb.ac.cn/handle/152342/7648 https://doi.org/10.1121/1.3147507 |
genre |
Physeter macrocephalus |
genre_facet |
Physeter macrocephalus |
op_relation |
JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 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 http://ir.ihb.ac.cn/handle/152342/7648 doi:10.1121/1.3147507 |
op_doi |
https://doi.org/10.1121/1.3147507 |
container_title |
The Journal of the Acoustical Society of America |
container_volume |
126 |
container_issue |
1 |
container_start_page |
468 |
op_container_end_page |
475 |
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1766168298176643072 |