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| 采用BioSonicsDT-X超声波回声仪评估青海湖裸鲤资源量及其空间分布 | |
| 引用本文： | 王崇瑞,张辉,杜浩,祁洪芳,史建全,危起伟.采用BioSonicsDT-X超声波回声仪评估青海湖裸鲤资源量及其空间分布[J].淡水渔业,2011,41(3):15-21. |
| 作者姓名： | 王崇瑞 张辉 杜浩 祁洪芳 史建全 危起伟 |
| 作者单位： | 1. 华中农业大学水产学院,武汉430070;农业部淡水生物多样性保护与利用重点开放实验室,中国水产科学研究院长江水产研究所,武汉430223 2. 农业部淡水生物多样性保护与利用重点开放实验室,中国水产科学研究院长江水产研究所,武汉430223;中国水产科学研究院淡水渔业研究中心,江苏无锡214081 3. 青海湖裸鲤救护中心,西宁,810016 4. 华中农业大学水产学院,武汉430070;农业部淡水生物多样性保护与利用重点开放实验室,中国水产科学研究院长江水产研究所,武汉430223;中国水产科学研究院淡水渔业研究中心,江苏无锡214081 |
| 基金项目： | 中国水产科学研究院长江水产研究所所长基金(SZ2010-05) |
| 摘 要： | 2010年8月10日至8月13日,采用美国BioSonics DT-X(210 kHz)鱼探仪对青海湖中青海湖裸鲤(Gymnocypris przwalskii)资源量及空间分布特征进行了为期4d的水声学调查.分析结果显示:2010年8月青海湖裸鲤在全湖区的平均密度为(1.83±0.36)ind./1000m3,总尾数... |
| 关 键 词： | 青海湖裸鲤(Gymnocypris przwalskii) 水声学 资源量评估 空间分布 |
Hydroacoustic assesment of abundance and spatial distribution of Gymnocypris przewalskii in Qinghai Lake with BioSonics DT-X echosounder |
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| WANG Chong-rui,ZHANG Hui,DU Hao,QI Hong-fan,SHI Jian-quan,WEI Qi-wei.Hydroacoustic assesment of abundance and spatial distribution of Gymnocypris przewalskii in Qinghai Lake with BioSonics DT-X echosounder[J].Freshwater Fisheries,2011,41(3):15-21. | |
| Authors: | WANG Chong-rui ZHANG Hui DU Hao QI Hong-fan SHI Jian-quan WEI Qi-wei |
| Institution: | WANG Chong-rui1,2,ZHANG Hui2,3,DU Hao2,QI Hong-fang4,SHI Jian-quan4,WEI Qi-wei1,3(1.Fishery College,Huazhong Agricultural University,Wuhan 430070,2.Key Laboratory of Freshwater Biodiversity Conservation and Utilization,Ministry of Agriculture of China,Yangtze River Fisheries Research Institute,Chinese Academy of Fishery Sciences,Wuhan 430223,3.Fresh water Fisheries Research Center,Wuxi,Jiangsu 214081,4.Qinghai Naked Carp Rescue Center,Xining,Qinghai 810016) |
| Abstract: | A BioSonics DT-X digital scientific echosounder with 210 kHz split beam transducer was used to survey the Gymnocypris przwalskii abundance and spatial distribution in Qinghai Lake on August 10—13,2010.The results indicated that the average fish density was 1.83 ind./1000 m3,with the amounts were 1.42×108 ind.,and the catchable abundance was about 17771.23 t,at 16990.84 t～18551.62 t,with 95% confidence inteval.The horizontal distribution of G.przewalskii was inconsistently,and the results indicated that the maximum fish density located at the Buha estuary and Quanji estuary,and the average fish density were 6.04 ind./1000 m3 and 6.35 ind./1000 m3.The minimum fish density located at the area of 151 Base and fishing ground wharf,and the average fish density was 0.26 ind./1000 m3.For the vertical didtribution of G.przewalskii were also inconsistently at the same time.The results indicated that the G.przewalskii mainly distributed at 1～6 m water depth.The maximum fish density was 28.22 ind./1000 m3 located at the 1～6 mwater depth of Buha estuary,and the minimum was 0.02 ind./1000 m3 located at the 21～26 m water depth of Sankuaishi area. |
| Keywords: | Gymnocypris przwalskii hydroacoustic stock assessment spatial distribution |
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