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http://dx.doi.org/10.3796/KSFOT.2022.58.4.345

Target strength of juvenile Antarctic silverfish (Pleuragramma antarcticum)  

Sara, LEE (Division of Fisheries Science, Chonnam National University)
Wooseok, OH (Division of Fisheries Science, Chonnam National University)
Hyoung Sul, LA (Division of Ocean Sciences, Korea Polar Research Institute)
Wuju, SON (Department of Polar Science, University of Science and Technology)
Jeong-Hoon, KIM (Division of Life Sciences, Korea Polar Research Institute)
Kyounghoon, LEE (Department of Marine Production Management, Chonnam National University)
Publication Information
Journal of the Korean Society of Fisheries and Ocean Technology / v.58, no.4, 2022 , pp. 345-351 More about this Journal
Abstract
In this study, the target strength for multi-frequency (38 kHz, 120 kHz, 200 kHz) of juvenile silverfish (Pleuragramma antarcticum) was estimated using by the KRM (Kirchhoff-ray mode) model. The body shape of the silverfish was described by a picture and the body length of nine individuals ranged in 1.8 cm to 8.8 cm. The maximum TScm according to the total length for the constant term (b20) was -92.93 dB at 38 kHz, -86.63 dB at 120 kHz, and -85.89 dB at 200 kHz, respectively. The averaged TScm according to total length for the constant term (b20) was -100.0 dB at 38 kHz, -93.0 dB at 120 kHz, and -106.9 dB at 200 kHz, respectively.
Keywords
Antarctic silverfish; Juvenile fish; Target strength; Kirchhoff-ray mode model;
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