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首页> 外文期刊>Korean Journal of Fisheries and Aquatic Sciences >Target Strength According to Tilt Angle and Length of Black Seabream Acanthopagrus schlegeli at 200 kHz-frequency
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Target Strength According to Tilt Angle and Length of Black Seabream Acanthopagrus schlegeli at 200 kHz-frequency

机译:根据200 kHz频率的倾斜角度和黑色河流Acanthopagrus Schlegeli的倾斜角度和长度

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摘要

This study determined the acoustic target strength (TS; dB) of black seabream Acanthopagrus schlegeli off the southern coast of Korea. For the ex-situ measurements, 200 kHz split beam transducers were used, and a Kirchhoff-ray mode (KRM) model acoustic model was used for the calculation. The fork length and total weight of the black seabream ranged from 6.4 to 30.8 cm and 6.4 to 683.8 g. respectively 200 kHz , the TS could beexpressed as a function of fork length as: TSmix=201ogI0(FL)-60.35(R=0.92) and TS_(avg)=201og_(10)(FL)-66.89(R=0.88). These TS results for black seabream can be used for estimating the biomass of fish in acoustic surveys in coastal areas.
机译:这项研究确定了韩国南部海岸的黑河射射刺素的声学目标力量(TS; DB)。 对于出原位测量,使用200kHz分体束换能器,并且使用Kirchhoff射线模式(KRM)模型进行计算。 黑河流的叉长和总重量从6.4到30.8厘米,6.4至683.8克。 分别为200 kHz,TS可以作为叉长的函数作为:tsmix = 201ogi0(fl)-60.35(r = 0.92)和ts_(avg)= 201og_(10)(fl)-66.89(r = 0.88)。 这些Black Leabream的TS结果可用于估算沿海地区的声学调查中鱼的生物量。

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