Acoustic properties of a short-finned pilot whale head with insight into temperature influence on tissues' sound velocity
Dong, Jianchen1,4; Song, Zhongchang2; Li, Songhai1,5; Gong, Zining1,4; Li, Kuan1,4; Zhang, Peijun1; Zhang, Yu2; Zhang, Meng3; Li, Songhai(Chinese Acad Sci, Sanya Key Lab Marine Mammal & Marine Bioacoust, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China)
2017-10-01
Source PublicationJOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
Volume142Issue:4Pages:1901-1912
Contribution Rank第1完成单位
Abstract

Acoustic properties of odontocete head tissues, including sound velocity, density, and acoustic impedance, are important parameters to understand dynamics of its echolocation. In this paper, acoustic properties of head tissues from a freshly dead short-finned pilot whale (Globicephala macrorhynchus) were reconstructed using computed tomography (CT) and ultrasound. The animal's forehead soft tissues were cut into 188 ordered samples. Sound velocity, density, and acoustic impedance of each sample were either directly measured or calculated by formula, and Hounsfield Unit values (HUs) were obtained from CT scanning. According to relationships between HUs and sound velocity, HUs and density, as well as HUs and acoustic impedance, distributions of acoustic properties in the head were reconstructed. The inner core in the melon with low-sound velocity and low-density is an evidence for its potential function of sound focusing. The increase in acoustic impedance of forehead tissues from inner core to outer layer may be important for the acoustic impedance matching between the outer layer tissue and seawater. In addition, temperature dependence of sound velocity in soft tissues was also examined. The results provide a guide to the simulation of the sound emission of the short-finned pilot whale. (C) 2017 Acoustical Society of America.

SubtypeArticle
WOS HeadingsScience & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1121/1.5005509
URL查看原文
Indexed BySCI
Language英语
WOS KeywordDOLPHIN TURSIOPS-TRUNCATUS ; GLOBICEPHALA-MELAENA MELAENA ; FINITE-ELEMENT MODEL ; ZIPHIUS-CAVIROSTRIS ; SPERM-WHALE ; COMPOSITIONAL TOPOGRAPHY ; ULTRASONIC-ATTENUATION ; DELPHINUS-DELPHIS ; LIPID-COMPOSITION ; DIVING BEHAVIOR
WOS SubjectAcoustics ; Audiology & Speech-Language Pathology
WOS IDWOS:000413528900032
Citation statistics
Document Type期刊论文
Version出版稿
Identifierhttp://ir.idsse.ac.cn/handle/183446/4764
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
Corresponding AuthorLi, Songhai(Chinese Acad Sci, Sanya Key Lab Marine Mammal & Marine Bioacoust, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China)
Affiliation1.Chinese Acad Sci, Sanya Key Lab Marine Mammal & Marine Bioacoust, Inst Deep Sea Sci & Engn, Sanya 572000, Peoples R China
2.Xiamen Univ, Key Lab Underwater Acoust Commun & Marine Informa, Minist Educ, Xiamen 361005, Peoples R China
3.Peoples Hosp Sanya, Radiol Dept, Sanya 572000, Peoples R China
4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
5.Qingdao Natl Lab Marine Sci & Technol, Funct Lab Marine Fisheries Sci & Food Prod Proc, Qingdao 266237, Peoples R China
First Author Affilication海洋哺乳动物与海洋生物声学研究组
Recommended Citation
GB/T 7714
Dong, Jianchen,Song, Zhongchang,Li, Songhai,et al. Acoustic properties of a short-finned pilot whale head with insight into temperature influence on tissues' sound velocity[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2017,142(4):1901-1912.
APA Dong, Jianchen.,Song, Zhongchang.,Li, Songhai.,Gong, Zining.,Li, Kuan.,...&Li, Songhai.(2017).Acoustic properties of a short-finned pilot whale head with insight into temperature influence on tissues' sound velocity.JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,142(4),1901-1912.
MLA Dong, Jianchen,et al."Acoustic properties of a short-finned pilot whale head with insight into temperature influence on tissues' sound velocity".JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 142.4(2017):1901-1912.
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