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学科主题: Acoustics
题名: Echolocation signals of the free-ranging Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientialis)
作者: Li, SH; Wang, KX; Wang, D; Akamatsu, T
通讯作者: Li, SH, Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
关键词: CEPHALORHYNCHUS-COMMERSONII ; HARBOR PORPOISE ; DOLPHIN ; ABILITY
刊名: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
发表日期: 2005-05-01
DOI: 10.1121/1.1882945
卷: 117, 期:5, 页:3288-3296
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China; Fisheries Res Agcy, Natl Res Inst Fisheries Engn, Ibaraki 3140421, Japan
WOS标题词: Science & Technology ; Technology ; Life Sciences & Biomedicine
类目[WOS]: Acoustics ; Audiology & Speech-Language Pathology
研究领域[WOS]: Acoustics ; Audiology & Speech-Language Pathology
摘要: This paper describes the high-frequency echolocation signals from free-ranging Yangtze finless porpoise in the Tian-e-zhou Baiji National Natural Reserve in Hubei Province, China. Signal analysis showed that the Yangtze finless porpoise clicks are typical high-frequency narrow-band (relative width of the frequency spectrum Q=6.6 &PLUSMN; 1.56, N=548) ultrasonic pulses. The peak frequencies of the typical clicks range from 87 to 145 kHz with an average of 125 &PLUSMN; 6.92 kHz. The durations range from 30 to 122 μ s with an average of 68 &PLUSMN; 14.12 μ s. The characteristics of the signals are similar to those of other members of the Phocoenidae as well as the distantly related delphinids, Cephalorhynchus spp. Comparison of these signals to those of the baiji (Lipotes vexillifer), who occupies habitat similar to that of the Yangtze finless porpoise, showed that the peak frequencies of clicks produced by the Yangtze finless porpoise are remarkably higher than those produced by the baiji. Difference in peak frequency between the two species is probably linked to the different size of prefer-red prey fish. Clear double-pulse and multi-pulse reverberation structures of clicks are noticed, and there is no indication of any low-frequency (< 70 kHz) components during the recording period. © 2005 Acoustical Society of America.
英文摘要: This paper describes the high-frequency echolocation signals from free-ranging Yangtze finless porpoise in the Tian-e-zhou Baiji National Natural Reserve in Hubei Province, China. Signal analysis showed that the Yangtze finless porpoise clicks are typical high-frequency narrow-band (relative width of the frequency spectrum Q=6.6 +/- 1.56, N=548) ultrasonic pulses. The peak frequencies of the typical clicks range from 87 to 145 kHz with an average of 125 +/- 6.92 kHz. The durations range from 30 to 122 mu s with an average of 68 +/- 14.12 mu s. The characteristics of the signals are similar to those of other members of the Phocoenidae as well as the distantly related delphinids, Cephalorhynchus spp. Comparison of these signals to those of the baiji (Lipotes vexillifer), who occupies habitat similar to that of the Yangtze finless porpoise, showed that the peak frequencies of clicks produced by the Yangtze finless porpoise are remarkably higher than those produced by the baiji. Difference in peak frequency between the two species is probably linked to the different size of prefer-red prey fish. Clear double-pulse and multi-pulse reverberation structures of clicks are noticed, and there is no indication of any low-frequency (< 70 kHz) components during the recording period. (c) 2005 Acoustical Society of America.
关键词[WOS]: CEPHALORHYNCHUS-COMMERSONII ; HARBOR PORPOISE ; DOLPHIN ; ABILITY
语种: 英语
WOS记录号: WOS:000229068700060
ISSN号: 0001-4966
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/9262
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Sch, Beijing 100039, Peoples R China
3.Fisheries Res Agcy, Natl Res Inst Fisheries Engn, Ibaraki 3140421, Japan

Recommended Citation:
Li, SH; Wang, KX; Wang, D; Akamatsu, T.Echolocation signals of the free-ranging Yangtze finless porpoise (Neophocaena phocaenoides asiaeorientialis),JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2005,117(5):3288-3296
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