한국수산과학회

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  • pISSN : 2234-8395
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  • eISSN : 2234-1757

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kfas, vol. 51, no. 5, pp.566-570, October, 2018
DOI. https://doi.org/10.5657/KFAS.2018.0566

Target Strength According to Tilt Angle and Length of Black Seabream
Acanthopagrus schlegeli at 200 kHz-frequency
감성돔(Acanthopagrus schlegeli)의 유영자세각과 체장에 따른 200
kHz대역 음향산란강도

최정화·오우석1*·윤은아2·임양재·이경훈2
국립수산과학원 수산자원연구센터, 1전남대학교 수산과학과, 2전남대학교 해양기술학부

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 Kirchhoffray
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: TSmax=20log10(FL)-60.35(R=0.92) and TSavg.=20log10(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.

Keyword : Key words: Target strength, Acoustic, Split beam, Black seabream, KRM model

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