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In situ target-strength measurement of young hairtail (Trichiurus haumela) in the Yellow Sea

文献类型: 外文期刊

作者: Zhao, XY 1 ;

作者机构: 1.Chinese Acad Fisheries Sci, Yellow Sea Fisheries Sea Inst, Minist Agr, Key Lab Sustainable Utilizat Marine Fisheries Res, Qingdao 266071, Peoples R China

关键词: hairtail;target strength;Yellow Sea

期刊名称:ICES JOURNAL OF MARINE SCIENCE ( 影响因子:3.593; 五年影响因子:4.037 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: The target strength of hairtail (Trichiurus haumela) in the Yellow Sea was measured in situ with a 38 kHz, split-beam echosounder on 2 January 2001. The fish measured were of the 2000 year class, its anal length ranged from 62 to 115 mm, with a mean of 89.8 mm. The mean target strength of these young hairtail was estimated to be —49.2 dB, with a 95% confidence interval of (—49.4, —49.0) dB. This provided a rare and useful reference for the acoustic-abundance estimation of hairtail.

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