Echolocation signals of free-ranging Indo-Pacific humpback dolphins (Sousa chinensis) in Sanniang Bay, China
Fang, Liang1; Li, Songhai2; Wang, Kexiong1; Wang, Zhitao1,3; Shi, Wenjing1,3; Wang, Ding1,3
2015-09-01
Source PublicationJOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Volume138Issue:3Pages:1346-1352
AbstractWhile the low-frequency communication sounds of Indo-Pacific humpback dolphins ( Sousa chinensis) have been reported in a number of papers, the high-frequency echolocation signals of Sousa chinensis, especially those living in the wild, have been less studied. In the current study, echolocation signals of humpback dolphins were recorded in Sanniang Bay, Guangxi Province, China, using a cross-type hydrophone array with five elements. In total, 77 candidate on-axis clicks from 77 scans were selected for analysis. The results showed that the varied peak-to-peak source levels ranged from 177.1 to 207.3 dB, with an average of 187.7 dB re: 1 mu Pa. The mean peak frequency was 109.0 kHz with a -3-dB bandwidth of 50.3 kHz and 95% energy duration of 22 mu s. The -3-dB bandwidth was much broader than the root mean square bandwidth and exhibited a bimodal distribution. The center frequency exhibited a positive relationship with the peak-to-peak source level. The clicks of the wild Indo-Pacific humpback dolphins were short-duration, broadband, ultrasonic pulses, similar to those produced by other whistling dolphins of similar body size. However, the click source levels of the Indo-Pacific humpback dolphin appear to be lower than those of other whistling dolphins. (C) 2015 Acoustical Society of America.
SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1121/1.4929492
URL查看原文
Indexed BySCI
Language英语
WOS KeywordPORPOISES PHOCOENA-PHOCOENA ; AUTOMATIC GAIN-CONTROL ; SPERM-WHALE CLICKS ; LAGENORHYNCHUS-ALBIROSTRIS ; TURSIOPS-TRUNCATUS ; GRAMPUS-GRISEUS ; KILLER WHALES ; PARAMETERS ; WILD ; WATERS
WOS SubjectAcoustics ; Audiology & Speech-Language Pathology
WOS IDWOS:000368643800041
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Cited Times:11[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.idsse.ac.cn/handle/183446/1345
Collection深海科学研究部_深海生物学研究室_海洋哺乳动物与海洋生物声学研究组
Affiliation1.Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Sanya Key Lab Marine Mammal & Marine Bioacoust, Sanya Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
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GB/T 7714
Fang, Liang,Li, Songhai,Wang, Kexiong,et al. Echolocation signals of free-ranging Indo-Pacific humpback dolphins (Sousa chinensis) in Sanniang Bay, China[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2015,138(3):1346-1352.
APA Fang, Liang,Li, Songhai,Wang, Kexiong,Wang, Zhitao,Shi, Wenjing,&Wang, Ding.(2015).Echolocation signals of free-ranging Indo-Pacific humpback dolphins (Sousa chinensis) in Sanniang Bay, China.JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,138(3),1346-1352.
MLA Fang, Liang,et al."Echolocation signals of free-ranging Indo-Pacific humpback dolphins (Sousa chinensis) in Sanniang Bay, China".JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 138.3(2015):1346-1352.
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