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题名: Possible age-related hearing loss (presbycusis) and corresponding change in echolocation parameters in a stranded Indo-Pacific humpback dolphin
作者: Li, Songhai1, 2; Wang, Ding2; Wang, Kexiong2; Hoffmann-Kuhnt, Matthias1; Fernando, Nimal3; Taylor, Elizabeth A.1; Lin, Wenzhi4; Chen, Jialin4; Ng, Timothy5
通讯作者: Li, SH (reprint author), Chinese Acad Sci, Marine Mammal & Marine Bioacoust Lab, Sanya Inst Deep Sea Sci & Engn, 62 Fenghuang Rd, Sanya 572000, Peoples R China.
关键词: biosonar ; high-frequency hearing ; marine mammals ; auditory evoked potential
刊名: JOURNAL OF EXPERIMENTAL BIOLOGY
发表日期: 2013-11-01
DOI: 10.1242/jeb.091504
卷: 216, 期:22, 页:4144-4153
收录类别: SCI
文章类型: Article
部门归属: [Li, Songhai ; Hoffmann-Kuhnt, Matthias ; Taylor, Elizabeth A.] Natl Univ Singapore, Trop Marine Sci Inst, Singapore 119227, Singapore ; [Li, Songhai ; Wang, Ding ; Wang, Kexiong] Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China ; [Fernando, Nimal] Ocean Pk Corp, Aberdeen, Hong Kong, Peoples R China ; [Lin, Wenzhi ; Chen, Jialin] Pearl River Estuary Chinese White Dolphin Natl Na, Zhuhai Tangjia 519080, Guangdong, Peoples R China ; [Ng, Timothy] Ocean Pk Conservat Fdn, Aberdeen, Hong Kong, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
资助者: Ocean Park Conservation Foundation, Hong Kong (OPCFHK); National Natural Science Foundation of China [31070347, 31170501]; Ministry of Science and Technology of China [2011BAG07B05-3]; State Oceanic Administration of China [2011050113]; 'Hundred Talents Program' of the Chinese Academy of Sciences [SIDSSE-BR-201201]; Knowledge Innovation Program of the Chinese Academy of Sciences [SIDSSE-201210]; Marine Mammal Research Laboratory, Tropical Marine Science Institute, National University of Singapore
类目[WOS]: Biology
研究领域[WOS]: Life Sciences & Biomedicine - Other Topics
摘要: The hearing and echolocation clicks of a stranded Indo-Pacific humpback dolphin (Sousa chinensis) in Zhuhai, China, were studied. This animal had been repeatedly observed in the wild before it was stranded and its age was estimated to be similar to 40. years. The animal's hearing was measured using a non-invasive auditory evoked potential (AEP) method. Echolocation clicks produced by the dolphin were recorded when the animal was freely swimming in a 7.5m (width) x22m (length)x4.8m (structural depth) pool with a water depth of similar to 2.5m. The hearing and echolocation clicks of the studied dolphin were compared with those of a conspecific younger individual, similar to 13 years of age. The results suggested that the cut-off frequency of the high-frequency hearing of the studied dolphin was similar to 30-40 kHz lower than that of the younger individual. The peak and centre frequencies of the clicks produced by the older dolphin were similar to 16 kHz lower than those of the clicks produced by the younger animal. Considering that the older dolphin was similar to 40years old, its lower high-frequency hearing range with lower click peak and centre frequencies could probably be explained by age-related hearing loss (presbycusis).
英文摘要: The hearing and echolocation clicks of a stranded Indo-Pacific humpback dolphin (Sousa chinensis) in Zhuhai, China, were studied. This animal had been repeatedly observed in the wild before it was stranded and its age was estimated to be similar to 40. years. The animal's hearing was measured using a non-invasive auditory evoked potential (AEP) method. Echolocation clicks produced by the dolphin were recorded when the animal was freely swimming in a 7.5m (width) x22m (length)x4.8m (structural depth) pool with a water depth of similar to 2.5m. The hearing and echolocation clicks of the studied dolphin were compared with those of a conspecific younger individual, similar to 13 years of age. The results suggested that the cut-off frequency of the high-frequency hearing of the studied dolphin was similar to 30-40 kHz lower than that of the younger individual. The peak and centre frequencies of the clicks produced by the older dolphin were similar to 16 kHz lower than those of the clicks produced by the younger animal. Considering that the older dolphin was similar to 40years old, its lower high-frequency hearing range with lower click peak and centre frequencies could probably be explained by age-related hearing loss (presbycusis).
关键词[WOS]: WHALE PSEUDORCA-CRASSIDENS ; BOTTLE-NOSED-DOLPHIN ; EVOKED-POTENTIAL AUDIOMETRY ; TURSIOPS-TRUNCATUS ; NOISE EXPOSURE ; AUDIOGRAM ; SIGNALS ; SENSITIVITY ; CETACEANS ; HISTORY
语种: 英语
WOS记录号: WOS:000326499900007
ISSN号: 0022-0949
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19757
Appears in Collections:水生生物多样性与资源保护研究中心_期刊论文

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作者单位: 1.Natl Univ Singapore, Trop Marine Sci Inst, Singapore 119227, Singapore
2.Chinese Acad Sci, Inst Hydrobiol, Key Lab Aquat Biodivers & Conservat, Wuhan 430072, Peoples R China
3.Ocean Pk Corp, Aberdeen, Hong Kong, Peoples R China
4.Pearl River Estuary Chinese White Dolphin Natl Na, Zhuhai Tangjia 519080, Guangdong, Peoples R China
5.Ocean Pk Conservat Fdn, Aberdeen, Hong Kong, Peoples R China

Recommended Citation:
Li, Songhai; Wang, Ding; Wang, Kexiong; Hoffmann-Kuhnt, Matthias; Fernando, Nimal; Taylor, Elizabeth A.; Lin, Wenzhi; Chen, Jialin; Ng, Timothy.Possible age-related hearing loss (presbycusis) and corresponding change in echolocation parameters in a stranded Indo-Pacific humpback dolphin,JOURNAL OF EXPERIMENTAL BIOLOGY,2013,216(22):4144-4153
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