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Target strength of juvenile Antarctic silverfish (Pleuragramma antarcticum)

남극 은암치(Pleuragramma antarcticum) 치어의 음향산란특성

  • 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)
  • 이사라 (전남대학교 수산과학과) ;
  • 오우석 (전남대학교 수산과학과) ;
  • 나형술 (한국해양과학기술원 극지연구소 해양연구본부) ;
  • 손우주 (한국과학기술연합대학교대학원 극지과학과) ;
  • 김정훈 (극지연구소 생명과학연구본부) ;
  • 이경훈 (전남대학교 해양생산관리학과)
  • Received : 2022.10.27
  • Accepted : 2022.11.25
  • Published : 2022.11.30

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

Acknowledgement

이 연구는 해양수산부의 재원으로 해양수산과학기술진흥원의 지원을 받아 수행되었습니다(과제번호 : KIMST 20220547). 본 논문을 사려 깊게 검토하여 주신 심사위원님들과 편집위원님께 감사드립니다

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