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Hearing pathways in the Yangtze finless porpoise, Neophocaena asiaeorientalis asiaeorientalis
Mooney, T. Aran1; Li, Songhai2,3; Ketten, Darlene R.1,4; Wang, Kexiong2; Wang, Ding2; Mooney, TA (reprint author), Woods Hole Oceanog Inst, Dept Biol, Woods Hole, MA 02543 USA.
2014-02-01
Source PublicationJOURNAL OF EXPERIMENTAL BIOLOGY
ISSN0022-0949
Volume217Issue:3Pages:444-452
AbstractHow an animal receives sound may influence its use of sound. While 'jaw hearing' is well supported for odontocetes, work examining how sound is received across the head has been limited to a few representative species. The substantial variation in jaw and head morphology among odontocetes suggests variation in sound reception. Here, we address how a divergent subspecies, the Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis) hears low-, mid-and high-frequency tones, as well as broadband clicks, comparing sounds presented at different locations across the head. Hearing was measured using auditory evoked potentials (AEPs). Click and tone stimuli (8, 54 and 120 kHz) were presented at nine locations on the head and body using a suction-cup transducer. Threshold differences were compared between frequencies and locations, and referenced to the underlying anatomy using computed tomography (CT) imaging of deceased animals of the same subspecies. The best hearing locations with minimum thresholds were found adjacent to a mandibular fat pad and overlaying the auditory bulla. Mean thresholds were not substantially different at locations from the rostrum tip to the ear (11.6 dB). This contrasts with tests with bottlenose dolphins and beluga whales, in which 30-40 dB threshold differences were found across the animals' heads. Response latencies increased with decreasing response amplitudes, which suggests that latency and sensitivity are interrelated when considering sound reception across the odontocete head. The results suggest that there are differences among odontocetes in the anatomy related to receiving sound, and porpoises may have relatively less acoustic 'shadowing'.; How an animal receives sound may influence its use of sound. While 'jaw hearing' is well supported for odontocetes, work examining how sound is received across the head has been limited to a few representative species. The substantial variation in jaw and head morphology among odontocetes suggests variation in sound reception. Here, we address how a divergent subspecies, the Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis) hears low-, mid-and high-frequency tones, as well as broadband clicks, comparing sounds presented at different locations across the head. Hearing was measured using auditory evoked potentials (AEPs). Click and tone stimuli (8, 54 and 120 kHz) were presented at nine locations on the head and body using a suction-cup transducer. Threshold differences were compared between frequencies and locations, and referenced to the underlying anatomy using computed tomography (CT) imaging of deceased animals of the same subspecies. The best hearing locations with minimum thresholds were found adjacent to a mandibular fat pad and overlaying the auditory bulla. Mean thresholds were not substantially different at locations from the rostrum tip to the ear (11.6 dB). This contrasts with tests with bottlenose dolphins and beluga whales, in which 30-40 dB threshold differences were found across the animals' heads. Response latencies increased with decreasing response amplitudes, which suggests that latency and sensitivity are interrelated when considering sound reception across the odontocete head. The results suggest that there are differences among odontocetes in the anatomy related to receiving sound, and porpoises may have relatively less acoustic 'shadowing'.
SubtypeArticle
KeywordSensory Auditory Brainstem Response Noise Marine Mammal Odontocete Communication
Department[Mooney, T. Aran; Ketten, Darlene R.] Woods Hole Oceanog Inst, Dept Biol, Woods Hole, MA 02543 USA; [Li, Songhai; Wang, Kexiong; Wang, Ding] Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China; [Li, Songhai] Univ Hawaii, Hawaii Inst Marine Biol, Marine Mammal Res Program, Kailua, HI 96734 USA; [Ketten, Darlene R.] Harvard Univ, Sch Med, Dept Otol & Laryngol, Boston, MA 02114 USA
DOI10.1242/jeb.093773
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
Funding OrganizationOffice of Naval Research; Mellon Joint Initiatives Award; Knowledge Innovation Program of Chinese Academy of Sciences [KSCX2-EW-Z-4]; National Natural Science Foundation of China [31170501] ; Office of Naval Research; Mellon Joint Initiatives Award; Knowledge Innovation Program of Chinese Academy of Sciences [KSCX2-EW-Z-4]; National Natural Science Foundation of China [31170501] ; Office of Naval Research; Mellon Joint Initiatives Award; Knowledge Innovation Program of Chinese Academy of Sciences [KSCX2-EW-Z-4]; National Natural Science Foundation of China [31170501] ; Office of Naval Research; Mellon Joint Initiatives Award; Knowledge Innovation Program of Chinese Academy of Sciences [KSCX2-EW-Z-4]; National Natural Science Foundation of China [31170501]
Indexed BySCI
Language英语
WOS Research AreaLife Sciences & Biomedicine - Other Topics
WOS SubjectBiology
WOS IDWOS:000331204100025
WOS KeywordDOLPHIN TURSIOPS-TRUNCATUS ; PHOCOENA-PHOCOENA ; PHOCAENOIDES-ASIAEORIENTALIS ; ECHOLOCATION SIGNALS ; TEMPORAL RESOLUTION ; GRAMPUS-GRISEUS ; AUDITORY-SYSTEM ; RISSOS DOLPHIN ; WHALE ; CETACEANS
Funding OrganizationOffice of Naval Research; Mellon Joint Initiatives Award; Knowledge Innovation Program of Chinese Academy of Sciences [KSCX2-EW-Z-4]; National Natural Science Foundation of China [31170501] ; Office of Naval Research; Mellon Joint Initiatives Award; Knowledge Innovation Program of Chinese Academy of Sciences [KSCX2-EW-Z-4]; National Natural Science Foundation of China [31170501] ; Office of Naval Research; Mellon Joint Initiatives Award; Knowledge Innovation Program of Chinese Academy of Sciences [KSCX2-EW-Z-4]; National Natural Science Foundation of China [31170501] ; Office of Naval Research; Mellon Joint Initiatives Award; Knowledge Innovation Program of Chinese Academy of Sciences [KSCX2-EW-Z-4]; National Natural Science Foundation of China [31170501]
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Cited Times:12[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/342005/19999
Collection水生生物多样性与资源保护研究中心_期刊论文
Corresponding AuthorMooney, TA (reprint author), Woods Hole Oceanog Inst, Dept Biol, Woods Hole, MA 02543 USA.
Affiliation1.Woods Hole Oceanog Inst, Dept Biol, Woods Hole, MA 02543 USA
2.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China
3.Univ Hawaii, Hawaii Inst Marine Biol, Marine Mammal Res Program, Kailua, HI 96734 USA
4.Harvard Univ, Sch Med, Dept Otol & Laryngol, Boston, MA 02114 USA
Recommended Citation
GB/T 7714
Mooney, T. Aran,Li, Songhai,Ketten, Darlene R.,et al. Hearing pathways in the Yangtze finless porpoise, Neophocaena asiaeorientalis asiaeorientalis[J]. JOURNAL OF EXPERIMENTAL BIOLOGY,2014,217(3):444-452.
APA Mooney, T. Aran,Li, Songhai,Ketten, Darlene R.,Wang, Kexiong,Wang, Ding,&Mooney, TA .(2014).Hearing pathways in the Yangtze finless porpoise, Neophocaena asiaeorientalis asiaeorientalis.JOURNAL OF EXPERIMENTAL BIOLOGY,217(3),444-452.
MLA Mooney, T. Aran,et al."Hearing pathways in the Yangtze finless porpoise, Neophocaena asiaeorientalis asiaeorientalis".JOURNAL OF EXPERIMENTAL BIOLOGY 217.3(2014):444-452.
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