Journal of the Korean Society of Fisheries and Ocean Technology (수산해양기술연구)

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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Target strength of Antarctic krill and ice krill using the SDWBA model

SDWBA 모델을 이용한 남극 크릴과 아이스 크릴의 반사강도 연구

  • Wuju, SON (Department of Polar Science, University of Science and Technology) ;
  • Hyoung Sul, LA (Division of Ocean Sciences, Korea Polar Research Institute) ;
  • Wooseok, OH (Division of Fisheries Science, Chonnam National University) ;
  • Jongmin, JOO (Emission Inventory Management Team, National Air Emission Inventory and Research Center)
  • 손우주 (한국과학기술연합대학교대학원 극지과학과) ;
  • 나형술 (한국해양과학기술원 극지연구소 해양연구본부) ;
  • 오우석 (전남대학교 수산과학과) ;
  • 주종민 (국가미세먼지정보센터 배출량조사팀)
  • Received : 2022.11.05
  • Accepted : 2022.11.29
  • Published : 2022.11.30
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Abstract

We explored the frequency response of krill target strength (TS) to understand the Antarctic krill (Euphausia superba) and ice krill (Euphausia crystallorophias) using the stochastic distorted-wave Born approximation (SDWBA) model. The results showed that the distribution of orientation and the fatness factor could significantly impact on the frequency response of TS. Krill TS is clearly depended on acoustic properties, which could affect to estimate the biomass of two krill species. The results provide insight into the importance of understanding TS variation to estimate the Antarctic krill and ice krill biomass, and their ecology related to the environmental features in the Southern Ocean.

Keywords

Acknowledgement

이 연구는 해양수산부의 재원으로 해양수산과학기술진흥원의 지원을 받아 수행되었습니다(과제번호: KIMST 20220547).

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