中国科学院水生生物研究所机构知识库
Advanced  
IHB OpenIR  > 中科院水生所知识产出(2009年前)  > 期刊论文
题名: A passive acoustical survey method of finless porpoises
作者: Akamatsu, Tomonari1; Wang, Ding2; Wang, Kexiong2; Wei, Zhuo2; Naito, Yasuhiko
关键词: echolocation ; dolphin ; porpoise ; sonar ; underwater acoustics ; data logger
刊名: FISHERIES SCIENCE
发表日期: 2002
卷: 68, 页:294-297
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Fisheries
研究领域[WOS]: Fisheries
英文摘要: The finless porpoises (Neophocaena phocaenoides) have narrow band and high frequency sonar signals, which are distinctive from background noises. Underwater sound monitoring with hydrophones placed along the sides of a research vessel, concurrent with visual observations was conducted in the Yangtze River from Wuhan to Poyang Lake in China. In a total of 774 km cruise, 588 finless porpoises were sighted by visual observation and 44,864 ultrasonic pulses were recorded by the acoustical observation system. The acoustic monitoring system could detect presence of the finless porpoises 88% of the time, 300 m away from the hydrophone. False alarm in the system occurred with a frequency of 0.9%. Such a high detection performance of the present system was due to a large sound pressure level of sonar signals and frequent sound production. Over 160 dB off-axis sound pressure level and sonar signal production at every 3 to 4 s were observed by an acoustic and a behavioral data logger. The high frequency acoustical observation is suggested as an effective method for field surveys of small cetaceans, which produce sonar signals.
语种: 英语
WOS记录号: WOS:000207780600067
ISSN号: 0919-9268
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/342005/28830
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

Files in This Item:

There are no files associated with this item.


作者单位: 1.Natl Res Inst Fisheries Engn, Kashima, Ibaraki 3140421, Japan
2.Chinese Acad Sci, Inst Hydrol, Wuhan 430072, Peoples R China
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Akamatsu, Tomonari]'s Articles
[Wang, Ding]'s Articles
[Wang, Kexiong]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Akamatsu, Tomonari]‘s Articles
[Wang, Ding]‘s Articles
[Wang, Kexiong]‘s Articles
Related Copyright Policies
Null
Social Bookmarking
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院水生生物研究所 - Feedback
Powered by CSpace