Species identification of Chinese sturgeon using acoustic descriptors and ascertaining their spatial distribution in the spawning ground of Gezhouba Dam | |
Tao JiangPing1,2,3,4; Qiao Ye1,2; Tan XiChang3,5; Chang JianBo1,2 | |
刊名 | CHINESE SCIENCE BULLETIN |
2009-11-01 | |
卷号 | 54期号:21页码:3972-3980 |
关键词 | hydroacoustics fisheries acoustics echo-signal species identification Chinese sturgeon spatial distribution |
ISSN号 | 1001-6538 |
通讯作者 | Chang, JB, Minist Water Resources, Inst Hydroecol, Wuhan 430079, Peoples R China |
中文摘要 | This study has developed an improved subjective approach of classification in conjunction with Step wise DFA analysis to discriminate Chinese sturgeon signals from other targets. The results showed that all together 25 Chinese sturgeon echo-signals were detected in the spawning ground of Gezhouba Dam during the last 3 years, and the identification accuracy reached 90.9%. In Stepwise DFA, 24 out of 67 variables were applied in discrimination and identification. PCA combined with DFA was then used to ensure the significance of the 24 variables and detailed the identification pattern. The results indicated that we can discriminate Chinese sturgeon from other fish species and noise using certain descriptors such as the behaviour variables, echo characteristics and acoustic cross-section characteristics. However, identification of Chinese sturgeon from sediments is more difficult and needs a total of 24 variables. This is due to the limited knowledge about the acoustic-scattering properties of the substrate regions. Based on identified Chinese sturgeon individuals, 18 individuals were distributed in the region between the site of Gezhouba Dam and Miaozui reach, with a surface area of about 3.4 km(2). Seven individuals were distributed in the region between Miaozui and Yanshouba reach, with a surface area of about 13 km(2). |
英文摘要 | This study has developed an improved subjective approach of classification in conjunction with Step wise DFA analysis to discriminate Chinese sturgeon signals from other targets. The results showed that all together 25 Chinese sturgeon echo-signals were detected in the spawning ground of Gezhouba Dam during the last 3 years, and the identification accuracy reached 90.9%. In Stepwise DFA, 24 out of 67 variables were applied in discrimination and identification. PCA combined with DFA was then used to ensure the significance of the 24 variables and detailed the identification pattern. The results indicated that we can discriminate Chinese sturgeon from other fish species and noise using certain descriptors such as the behaviour variables, echo characteristics and acoustic cross-section characteristics. However, identification of Chinese sturgeon from sediments is more difficult and needs a total of 24 variables. This is due to the limited knowledge about the acoustic-scattering properties of the substrate regions. Based on identified Chinese sturgeon individuals, 18 individuals were distributed in the region between the site of Gezhouba Dam and Miaozui reach, with a surface area of about 3.4 km(2). Seven individuals were distributed in the region between Miaozui and Yanshouba reach, with a surface area of about 13 km(2). |
学科主题 | Multidisciplinary Sciences |
WOS标题词 | Science & Technology |
类目[WOS] | Multidisciplinary Sciences |
研究领域[WOS] | Science & Technology - Other Topics |
关键词[WOS] | SPLIT-BEAM SONAR ; FIXED-LOCATION ; FISHERIES ACOUSTICS ; ACIPENSER-SINENSIS ; TARGET STRENGTHS ; FISH ; DISCRIMINATION ; ABUNDANCE ; TRACKING ; RIVER |
收录类别 | SCI |
资助信息 | National Natural Science Foundation of China [30490234]; Special Public Sector Research of the Ministry of Water Resources of China [200701029, 200701008] |
语种 | 英语 |
WOS记录号 | WOS:000271760400018 |
公开日期 | 2010-10-13 |
内容类型 | 期刊论文 |
源URL | [http://ir.ihb.ac.cn/handle/152342/7490] |
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.Minist Water Resources, Inst Hydroecol, Wuhan 430079, Peoples R China 2.Chinese Acad Sci, Wuhan 430079, Peoples R China 3.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430071, Peoples R China 4.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China 5.Chinese Acad Fishery Sci, Pearl River Fishery Res Inst, Guangzhou 510380, Guangdong, Peoples R China |
推荐引用方式 GB/T 7714 | Tao JiangPing,Qiao Ye,Tan XiChang,et al. Species identification of Chinese sturgeon using acoustic descriptors and ascertaining their spatial distribution in the spawning ground of Gezhouba Dam[J]. CHINESE SCIENCE BULLETIN,2009,54(21):3972-3980. |
APA | Tao JiangPing,Qiao Ye,Tan XiChang,&Chang JianBo.(2009).Species identification of Chinese sturgeon using acoustic descriptors and ascertaining their spatial distribution in the spawning ground of Gezhouba Dam.CHINESE SCIENCE BULLETIN,54(21),3972-3980. |
MLA | Tao JiangPing,et al."Species identification of Chinese sturgeon using acoustic descriptors and ascertaining their spatial distribution in the spawning ground of Gezhouba Dam".CHINESE SCIENCE BULLETIN 54.21(2009):3972-3980. |
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