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Acoustic scattering characteristics of chub mackerel (Scomber japonicus) by KRM model

KRM 모델을 이용한 고등어(Scomber japonicus)의 음향산란특성 규명

  • PARK, Geunchang (Division of Fisheries Science, Chonnam National University) ;
  • OH, Wooseok (Division of Fisheries Science, Chonnam National University) ;
  • OH, Sunyoung (Division of Fisheries Science, Chonnam National University) ;
  • LEE, Kyounghoon (Department of Marine Production Management, Chonnam National University)
  • 박근창 (전남대학교 수산과학과) ;
  • 오우석 (전남대학교 수산과학과) ;
  • 오선영 (전남대학교 수산과학과) ;
  • 이경훈 (전남대학교 해양생산관리학과)
  • Received : 2021.10.07
  • Accepted : 2022.02.16
  • Published : 2022.02.28

Abstract

In this study, Target strength for multi-frequency (38 kHz, 70 kHz, 120 kHz and 200 kHz) of chub mackerel (Scomber japonicus) was estimated using by the KRM model. The body shape of the Chub mackerel was described by an X-ray system and the body length of 20 individuals ranged from 16 cm to 28 cm. The swimbladder tilt angle ranged between -8 and -14°, the maximum TS value according to the swimming angle of chub mackerel was -33.0 dB at -11°. The averaged TScm according to fork length was -66.02 dB at 38 kHz, -66.50 dB at 70 kHz, -66.00 dB at 120 kHz and -67.35 dB at 200kHz, respectively.

Keywords

Acknowledgement

이 논문은 2021년 해양수산부 재원으로 해양수산과학기술진흥원(AI 기반 스마트어업관리시스템 개발 사업, No.20210499)의 지원을 받아 수행되었으며, 본 논문을 사려 깊게 검토하여 주신 심사위원님들과 편집위원님께 감사드립니다.

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