Measurement of single-fish target strength in the South China Sea

文献类型: 外文期刊

第一作者: Chen Guobao

作者: Chen Guobao;Li Yongzhen;Chen Pimao;Zhang Jun;Fang Lichen;Li Nana;Chen Guobao;Li Yongzhen;Chen Pimao;Zhang Jun;Fang Lichen;Li Nana;Fang Lichen;Li Nana

作者机构:

关键词: target strength (TS);single-fish;caging experiment;tethering experiment;South China Sea

期刊名称:CHINESE JOURNAL OF OCEANOLOGY AND LIMNOLOGY ( 影响因子:1.068; 五年影响因子:0.983 )

ISSN: 0254-4059

年卷期: 2012 年 30 卷 4 期

页码:

收录情况: SCI

摘要: We measured the target strength (TS) of three commercial fish species: whitespotted spinefoot (Siganus canaliculatus), black porgy (Acanthopagrus schlegelii), and creek red bream (Lutjanus argentimaculatus), in the South China Sea. The TS of caged or tethered fish (n=76 total) was measured using a Simrad EY60 portable scientific echosounder at 120 kHz. We evaluated the relationship between TS and total length (TL, cm) for the three species. This is the first attempt to use split-beam acoustics to measure single-fish TS in the South China Sea by Chinese researchers. Our results will improve the accuracy and precision of acoustic abundance estimates of commercially important species and further the development of underwater acoustic survey techniques in fisheries in the South China Sea.

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