Comparison between visual and passive acoustic detection of finless porpoises in the Yangtze river, China
文献类型：期刊论文
| 作者 | Akamatsu, T; Wang, D; Wang, KX; Wei, Z |
| 刊名 | JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA
 |
| 出版日期 | 2001-04-01 |
| 卷号 | 109期号:4页码:1723-1727 |
| 关键词 | NEOPHOCAENA-PHOCAENOIDES ECHOLOCATION SIGNALS PHOCOENA-PHOCOENA LOCALIZATION DENSITY RANGE |
| ISSN号 | 0001-4966 |
| 通讯作者 | Akamatsu, T, Natl Res Inst Fisheries Engn, Kashiwa, Chiba 3140421, Japan |
| 中文摘要 | Recently, sonar signals and other sounds produced by cetaceans have been used for acoustic detection of individuals and groups in the wild. However, the detection probability ascertained by concomitant visual survey has not been demonstrated extensively. The finless porpoises (Neophocaena phocaenoides) have narrow band and high-frequency sonar signals, which are distinctive from background noises. Underwater sound monitoring with hydrophones (B&K8103) placed along the sides of a research vessel, concurrent with visual observations was conducted in the Yangtze River from Wuhan to Poyang Lake in 1998 in China. The peak to peak detection threshold was set at 133 dB re 1 mu Pa. With this threshold level, porpoises could be detected reliably within 300 m of the hydrophone. 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 the presence of the finless porpoises 82% of the time. A false alarm in the system occurred with a frequency of 0.9%. The high-frequency acoustical observation is suggested as an effective method for field surveys of small cetaceans, which produce high-frequency sonar signals. (C) 2001 Acoustical Society of America. |
| 英文摘要 | Recently, sonar signals and other sounds produced by cetaceans have been used for acoustic detection of individuals and groups in the wild. However, the detection probability ascertained by concomitant visual survey has not been demonstrated extensively. The finless porpoises (Neophocaena phocaenoides) have narrow band and high-frequency sonar signals, which are distinctive from background noises. Underwater sound monitoring with hydrophones (B&K8103) placed along the sides of a research vessel, concurrent with visual observations was conducted in the Yangtze River from Wuhan to Poyang Lake in 1998 in China. The peak to peak detection threshold was set at 133 dB re 1 mu Pa. With this threshold level, porpoises could be detected reliably within 300 m of the hydrophone. 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 the presence of the finless porpoises 82% of the time. A false alarm in the system occurred with a frequency of 0.9%. The high-frequency acoustical observation is suggested as an effective method for field surveys of small cetaceans, which produce high-frequency sonar signals. (C) 2001 Acoustical Society of America. |
| WOS标题词 | Science & Technology ; Technology ; Life Sciences & Biomedicine |
| 学科主题 | Acoustics |
| 类目[WOS] | Acoustics ; Audiology & Speech-Language Pathology |
| 研究领域[WOS] | Acoustics ; Audiology & Speech-Language Pathology |
| 关键词[WOS] | NEOPHOCAENA-PHOCAENOIDES ; ECHOLOCATION SIGNALS ; PHOCOENA-PHOCOENA ; LOCALIZATION ; DENSITY ; RANGE |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000167932600042 |
| 公开日期 | 2010-10-13 |
| 源URL | [http://ir.ihb.ac.cn/handle/152342/10016]  |
| 专题 | 水生生物研究所_中科院水生所知识产出（2009年前）_期刊论文 |
| 作者单位 | 1.Natl Res Inst Fisheries Engn, Kashiwa, Chiba 3140421, Japan 2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China |
| 推荐引用方式 GB/T 7714 | Akamatsu, T,Wang, D,Wang, KX,et al. Comparison between visual and passive acoustic detection of finless porpoises in the Yangtze river, China[J]. JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,2001,109(4):1723-1727. |
| APA | Akamatsu, T,Wang, D,Wang, KX,&Wei, Z.(2001).Comparison between visual and passive acoustic detection of finless porpoises in the Yangtze river, China.JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA,109(4),1723-1727. |
| MLA | Akamatsu, T,et al."Comparison between visual and passive acoustic detection of finless porpoises in the Yangtze river, China".JOURNAL OF THE ACOUSTICAL SOCIETY OF AMERICA 109.4(2001):1723-1727. |
入库方式： OAI收割
来源：水生生物研究所
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