Target strength estimation of dominant species in marine ranching ground of Jeju coastal water by KRM model

KRM 모델을 이용한 제주바다목장 해역 주요 우점종의 음향반사강도 추정

  • Lee, Seung-Jong (Subtropical Fisheries research center, Southwest Sea Fisheries Research Institute, National Fisheries Research and Development Institute) ;
  • Lee, Yoo-Won (Division of Marine Production System Management, Pukyong National University) ;
  • Kim, Joo-Il (Fisheries Resources Management Division, Southeast Sea Fisheries Research Institute, NFRDI) ;
  • Oh, Taeg-Yun (Fisheries Resources Management Division, NFRDI) ;
  • Hwang, Bo-Kyu (Research Center for Ocean Industry Development, Pukyong National University) ;
  • Kim, Byung-Yeob (Subtropical Fisheries research center, Southwest Sea Fisheries Research Institute, National Fisheries Research and Development Institute) ;
  • Lee, Kyoung-Hoon (Fisheries System Engineering Division, NFRDI)
  • 이승종 (국립수산과학원 남서해수산연구소 아열대수산연구센터) ;
  • 이유원 (부경대학교 해양생산시스템관리학부) ;
  • 김주일 (국립수산과학원 남동해수산연구소 자원관리과) ;
  • 오택윤 (국립수산과학원 자원관리과) ;
  • 황보규 (부경대학교 해양산업개발연구소) ;
  • 김병엽 (국립수산과학원 남서해수산연구소 아열대수산연구센터) ;
  • 이경훈 (국립수산과학원 시스템공학과)
  • Received : 2010.04.15
  • Accepted : 2010.05.06
  • Published : 2010.05.31


The indirect target strength (TS) estimation method which uses the Kirchhoff ray mode model (KRM model) was discussed to apply for a biomass estimation in the water of mixed species. TS of 25 live scorpion fishes for 120kHz were measured by a tethered method and of others dominant 5 species in the marine ranching ground of Jeju coastal water including a scorpion fish were also estimated by KRM model. The measurement TS of scorpion fish well agreed with the theoretical values and the standard formula of scorpion fish was estimated as $TS_{120kHz}=20Log\;(L)-72.9$ ($r^2=0.67$). TScm values estimated on trial to each sample of dominant 5 species were from -69.3dB to -75.1dB at 120kHz and they were in the general range of swimbladdered fish. It was clarified that TS by KRM model can be used to estimate fish biomass estimation by increasing a sample number and is more effective under the condition that there is rare TS information for inhabiting species in mixed-species area.


Supported by : 국립수산과학원 제주수산연구소


  1. Clay, C.S. and J.K. Horne, 1994. Acoustic models of fish: the Atlantic (Gadus morhua). J. Acoust. Soc. Am., 96, 1661-1668.
  2. Hwangbo, Y., D.J. Lee, Y.W. Lee and K. Lee, 2009. The frequency of length dependence of the target strength of the largehead hairtail (Trichiurus lepturus) in Korean waters. Fish. Aqua. Sci., 12 (2), 152-161.
  3. Kang, D. and D. Hwang, 2003. Ex situ target strength of rockfish (Sebastes schlegeli) and red sea bream (Pagrus major) in the Northwest Pacific. ICES J. Mar. Sci., 60, 538-542.
  4. Kang, D., S. Cho, C. Lee, J.G. Myoung and J. Na, 2009. Ex situ target strength measurements of Japanese anchovy (Engraulis japonicus) in the coastal Northwest Pacific. ICES J. Mar. Sci., 66, 1219-1224.
  5. Kang, D., T. Mukai, K. Iida, D. Hwang and J.G. Myoung, 2005. The influence of tilt angle on the acoustic target strength of the Japanese common squid (Todarodes pacificus). ICES J. Mar. Sci., 62 (4), 779-789.
  6. Kim, S., 1991. Assessment of fisheries resources. WooSung Publishing, p. 175.
  7. Lee, D.J., 2005. Fish length dependence of acoustic target strength for 12 dominant fish species caught in the Korean waters at 75kHz. J. Kor. Soc. Fish. Tech., 41 (4), 296-305.
  8. Lee, D.J. and H.I. Shin, 2005. Construction of a data bank for acoustic target strength with fish species, length and acoustic frequency for measuring fish size distribution. J. Kor. Fish. Soc., 38 (4), 265-275.
  9. Moon, J.H., D.J. Lee, H.I. Shin and Y.W. Lee, 2006. Fish length dependence of target strength for black rockfish, goldeye rockfish at 70kHz and 120kHz. J. Kor. Soc. Fish. Tech., 42 (1), 30-37.
  10. Oh, S.W. and J.Y. Ahn, 2001. Studies on dorsal aspect target strengths of rock bream, Oplegnathus Fasciatus and dusky spinefoot, Siganus Fuscescens. Bull. Kor. Soc. Fish. Tech., 37 (2), 133-139.
  11. Simmonds, E.J. and D.N. MacLennan, 2005. Fisheries acoustics. Blackwell, pp. 217-261.

Cited by

  1. Efficient eliminating methods of noises imbedded acoustic signals vol.51, pp.3, 2015,
  2. Verification and application of Target Strength for Japanese anchovy (Engraulis japonicas) by theoretical acoustic scattering model vol.48, pp.4, 2012,
  3. Multifrequency acoustic scattering characteristics of jack mackerel by KRM model vol.51, pp.3, 2015,
  4. Acoustic method for discriminating plankton from fish in Lake Dom Helvecio of Brazil using a time varied threshold vol.48, pp.4, 2012,
  5. Visual census and hydro-acoustic survey of demersal fish aggregations in Ulju small scale marine ranching area (MRA), Korea vol.51, pp.1, 2015,
  6. Backscattering strength and vertical distribution of dominant fishes in inland waters by hydroacoustics vol.50, pp.4, 2014,