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Density estimation of Yangtze finless porpoises using passive acoustic sensors and automated click train detection
Kimura, Satoko; Akamatsu, Tomonari; Li, Songhai; Dong, Shouyue; Dong, Lijun; Wang, Kexiong; Wang, Ding; Arai, Nobuaki; Wang, KX, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2010
Conference Name5th Animal Sonar Symposium
Source PublicationJOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Pages1435-1445
Conference DateSEP 14-18, 2009
Conference PlaceKyoto, JAPAN
Publication PlaceMELVILLE
PublisherACOUSTICAL SOC AMER AMER INST PHYSICS
ISSN0001-4966
Department[Li, Songhai; Dong, Shouyue; Dong, Lijun; Wang, Kexiong; Wang, Ding] Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; [Kimura, Satoko; Arai, Nobuaki] Kyoto Univ, Grad Sch Informat, Kyoto 6068501, Japan; [Akamatsu, Tomonari] Natl Res Inst Fisheries Engn, Ibaraki 3140408, Japan
AbstractA method is presented to estimate the density of finless porpoises using stationed passive acoustic monitoring. The number of click trains detected by stereo acoustic data loggers (A-tag) was converted to an estimate of the density of porpoises. First, an automated off-line filter was developed to detect a click train among noise, and the detection and false-alarm rates were calculated. Second, a density estimation model was proposed. The cue-production rate was measured by biologging experiments. The probability of detecting a cue and the area size were calculated from the source level, beam patterns, and a sound-propagation model. The effect of group size on the cue-detection rate was examined. Third, the proposed model was applied to estimate the density of finless porpoises at four locations from the Yangtze River to the inside of Poyang Lake. The estimated mean density of porpoises in a day decreased from the main stream to the lake. Long-term monitoring during 466 days from June 2007 to May 2009 showed variation in the density 0-4.79. However, the density was fewer than 1 porpoise/km(2) during 94% of the period. These results suggest a potential gap and seasonal migration of the population in the bottleneck of Poyang Lake. (c) 2010 Acoustical Society of America. [DOI: 10.1121/1.3442574]
KeywordNeophocaena-phocaenoides-asiaeorientialis Wild Harbor Porpoises Echolocation Signals Beaked-whales Phocoena-phocoena Beam Pattern Sperm-whales Data Logger Dolphins Abundance
Indexed BySCI
Language英语
WOS IDWOS:000281799800053
Citation statistics
Cited Times:24[WOS]   [WOS Record]     [Related Records in WOS]
Document Type会议论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/13864
Collection水生生物多样性与资源保护研究中心_会议论文
Corresponding AuthorWang, KX, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
Recommended Citation
GB/T 7714
Kimura, Satoko,Akamatsu, Tomonari,Li, Songhai,et al. Density estimation of Yangtze finless porpoises using passive acoustic sensors and automated click train detection[C]. MELVILLE:ACOUSTICAL SOC AMER AMER INST PHYSICS,2010:1435-1445.
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