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题名: Variation in the production rate of biosonar signals in freshwater porpoises
作者: Kimura, Satoko1; Akamatsu, Tomonari2, 4; Wang, Ding3; Li, Songhai3; Wang, Kexiong3; Yoda, Ken1
通讯作者: Kimura, S (reprint author), Nagoya Univ, Grad Sch Environm Studies, Chikusa Ku, Furo Cho, Nagoya, Aichi 4648601, Japan.
关键词: NEOPHOCAENA-PHOCAENOIDES-ASIAEORIENTALIS ; FINLESS PORPOISES ; SPOTTED DOLPHINS ; BEAKED-WHALES ; BEHAVIOR ; ECHOLOCATION ; COMMUNICATION ; CLICKS
刊名: JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
发表日期: 2013-05-01
DOI: 10.1121/1.4796129
卷: 133, 期:5, 页:3128-3134
收录类别: SCI
文章类型: Article
部门归属: [Kimura, Satoko ; Yoda, Ken] Nagoya Univ, Grad Sch Environm Studies, Chikusa Ku, Nagoya, Aichi 4648601, Japan ; [Akamatsu, Tomonari] Natl Res Inst Fisheries Engn, Ibaraki 3140408, Japan ; [Wang, Ding ; Li, Songhai ; Wang, Kexiong] Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Inst Hydrobiol, Wuhan 430072, Peoples R China ; [Akamatsu, Tomonari] Japan Sci & Technol Agcy, CREST, Chiyoda Ku, Tokyo 1020075, Japan
WOS标题词: Science & Technology ; Technology ; Life Sciences & Biomedicine
资助者: Program for Promotion of Basic Research Activities for Innovative Biosciences in Japan; Research and Development Program for New Bio-industry Initiatives in Japan; National Natural Science Foundation of China [31170501]; Chinese Academy of Sciences [KSCX2-EW-Z-4]; Ministry of Agriculture of China; Japan Society for the Promotion of Science [19405005, 24-3578, 24681006]
类目[WOS]: Acoustics ; Audiology & Speech-Language Pathology
研究领域[WOS]: Acoustics ; Audiology & Speech-Language Pathology
摘要: The biosonar (click train) production rate of ten Yangtze finless porpoises and their behavior were examined using animal-borne data loggers. The sound production rate varied from 0 to 290 click trains per 10-min time interval. Large individual differences were observed, regardless of body size. Taken together, however, sound production did not differ significantly between daytime and nighttime. Over the 172.5 h of analyzed recordings, an average of 99.0% of the click trains were produced within intervals of less than 60 s, indicating that during a 1-min interval, the number of click trains produced by each porpoise was typically greater than one. Most of the porpoises exhibited differences in average swimming speed and depth between day and night. Swimming speed reductions and usage of short-range sonar, which relates to prey-capture attempts, were observed more often during nighttime. However, biosonar appears to be affected not only by porpoise foraging, but also by their sensory environment, i.e., the turbid Yangtze River system. These features will be useful for passive acoustic detection of the porpoises. Calculations of porpoise density or abundance should be conducted carefully because large individual differences in the sound production rate will lead to large estimation error. (C) 2013 Acoustical Society of America.
英文摘要: The biosonar (click train) production rate of ten Yangtze finless porpoises and their behavior were examined using animal-borne data loggers. The sound production rate varied from 0 to 290 click trains per 10-min time interval. Large individual differences were observed, regardless of body size. Taken together, however, sound production did not differ significantly between daytime and nighttime. Over the 172.5 h of analyzed recordings, an average of 99.0% of the click trains were produced within intervals of less than 60 s, indicating that during a 1-min interval, the number of click trains produced by each porpoise was typically greater than one. Most of the porpoises exhibited differences in average swimming speed and depth between day and night. Swimming speed reductions and usage of short-range sonar, which relates to prey-capture attempts, were observed more often during nighttime. However, biosonar appears to be affected not only by porpoise foraging, but also by their sensory environment, i.e., the turbid Yangtze River system. These features will be useful for passive acoustic detection of the porpoises. Calculations of porpoise density or abundance should be conducted carefully because large individual differences in the sound production rate will lead to large estimation error. (C) 2013 Acoustical Society of America.
关键词[WOS]: NEOPHOCAENA-PHOCAENOIDES-ASIAEORIENTALIS ; FINLESS PORPOISES ; SPOTTED DOLPHINS ; BEAKED-WHALES ; BEHAVIOR ; ECHOLOCATION ; COMMUNICATION ; CLICKS
语种: 英语
WOS记录号: WOS:000318555900071
ISSN号: 0001-4966
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/19257
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.Nagoya Univ, Grad Sch Environm Studies, Chikusa Ku, Nagoya, Aichi 4648601, Japan
2.Natl Res Inst Fisheries Engn, Ibaraki 3140408, Japan
3.Chinese Acad Sci, Key Lab Aquat Biodivers & Conservat, Inst Hydrobiol, Wuhan 430072, Peoples R China
4.Japan Sci & Technol Agcy, CREST, Chiyoda Ku, Tokyo 1020075, Japan

Recommended Citation:
Kimura, S; Akamatsu, T; Wang, D; Li, SH; Wang, KX; Yoda, K.Variation in the production rate of biosonar signals in freshwater porpoises,JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2013,133(5):3128-3134
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