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

  • 제46권2호
  • /
  • Pages.165-172
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  • 2010
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  • 2671-9940(pISSN)
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  • 2671-9924(eISSN)
한국수산해양기술학회 (The Korean Society of Fisheries and Ocean Technology)
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음향도플러유향유속계를 이용한 꽁치어군의 유영속도 측정

Swimming speed measurement of Pacific saury (Cololabis saira) using Acoustic Doppler Current Profiler

  • 이경훈 (국립수산과학원 시스템공학과) ;
  • 이대재 (부경대학교 해양생산시스템관리학부) ;
  • 김형석 (부경대학교 해양생산시스템관리학부) ;
  • 박성욱 (국립수산과학원 시스템공학과)
  • Lee, Kyoung-Hoon (Fisheries System Engineering Division, National Fisheries Research & Development Institute) ;
  • Lee, Dae-Jae (Division of Marine Production System Management, Pukyong National University) ;
  • Kim, Hyung-Seok (Division of Marine Production System Management, Pukyong National University) ;
  • Park, Seong-Wook (Fisheries System Engineering Division, National Fisheries Research & Development Institute)
  • 투고 : 2010.04.01
  • 심사 : 2010.05.03
  • 발행 : 2010.05.31
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초록

This study was performed to estimate the swimming velocity of Pacific saury (Cololabis saira) migrated offshore Funka Bay of Hokkaido using an acoustic Doppler current profiler (OceanSurveyor, RDI, 153.6kHz) established in T/S Ushio-maru of Hokkaido University, in September 27, 2003. The ADCP's doppler shift revealed as the raw data that the maximum swimming velocity was measured 163.0cm/s, and its horizontal swimming speed and direction were $72.4{\pm}24.1\;cm/s$, $160.1^{\circ}{\pm}22.3^{\circ}$ while the surrounding current speed and direction were $19.6{\pm}8.4\;cm/s$, $328.1^{\circ}{\pm}45.3^{\circ}$. To calculate the actual swimming speed of Pacific saury in each bins, comparisons for each stratified bins must be made between the mean surrounding current velocity vectors, measured for each stratified bin, and its mean swimming velocity vectors, assumed by reference (threshold > -70dB) and 5dB margin among four beams of ADCP. As a result, the actual averaged swimming velocity was 88.6cm/s and the averaged 3-D swimming velocity was 91.3cm/s using the 3-D velocity vector, respectively.

키워드

과제정보

연구 과제번호 : 선망용 집어시스템 개발

연구 과제 주관 기관 : 국립수산과학원

참고문헌

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피인용 문헌

  1. Classification of sound-scattering layers using swimming speed estimated by acoustic Doppler current profiler vol.80, pp.1, 2014, https://doi.org/10.1007/s12562-013-0683-9
  2. Overview of the Applications of Hydroacoustic Methods in South Korea and Fish Abundance Estimation Methods vol.17, pp.3, 2014, https://doi.org/10.5657/FAS.2014.0369