DOI QR코드

DOI QR Code

Acoustic target strength measurements on immobile riverine shrimp, oriental river prawn(Macrobrachium koreana), in freshwater

담수역 징거미 새우(Macrobrachium koreana)의 음향 반사 강도 특성

  • Hwang, Bo-Kyu (Research Center for Ocean Industry Development, Pukyong National University) ;
  • Shin, Hyeon-Ok (Division of Marine Production System Management, Pukyong National University) ;
  • Cho, Sung-Ho (Department of Environmental Marine Science, Hanyang University) ;
  • Lee, Dae-Jae (Division of Marine Production System Management, Pukyong National University) ;
  • Kang, Don-Hyug (Marine Living Resources Division Research, Korea Ocean Research & Development Institute)
  • 황보규 (부경대학교 해양산업개발연구소) ;
  • 신현옥 (부경대학교 해양생산시스템관리학부) ;
  • 조성호 (한양대학교 해양환경과학과) ;
  • 이대재 (부경대학교 해양생산시스템관리학부) ;
  • 강돈혁 (한양해양연구원 해양자원연구본부)
  • Published : 2008.02.29

Abstract

Assessment and management of fisheries abundance in fresh water like a river or a lake is very important to maintain fisheries itself as well as tourist industry even if their scale is not much large. The species for catch in fresh water are mainly a mandarin fish, a carp, an eel, and others. Because oriental river prawn is a main prey of these species and the change in its abundance is directly related to their abundance change in fresh water, information on the abundance and distribution of the species are necessary. Hydroacoustic survey is known to one of the efficient method among several methodology. Information on acoustic target strength is key parameter to estimate abundance for acoustic survey. In this study, measurements on oriental river prawn, Macrobrachium koreana, were conducted for two high frequencies(200kHz and 420kHz) with tilt angle using automatic rotating system. The results of acoustic target strength obtained from the experiment were compared with those of acoustic scattering model, Distorted Wave Born Approximation(DWBA) model. For 200kHz, the result of acoustic target strength experiments was expressed in terms of the averaged target strength dependence on the body langth(BL, cm) as a following relationship; < $TS_{200kHz}$ > = 45.9log(BL) - 107.4. These results provide basic information for studying acoustic target strength and conducting acoustic survey of oriental river prawn.

Keywords

Target strength;High frequency;DWBA model;Oriental river prawn

References

  1. Amakasu, K and M. Furusawa, 2006. The target strength of Antarctic krill(Euphausia superba) measured by the split-beam method in a small tank at 70 kHz. ICES Journal of Marine Science, 63, 36-45 https://doi.org/10.1016/j.icesjms.2005.07.012
  2. Chu, D., P.H. Weibe, T.K. Stanton, T.R. Hammer, K.W. Doherty, N.J. Copley, J. Zhang, D.B. Reeder and M.C. Benfield, 2000. Measurement of the material properties of live marine organism and their influence on acoustic scattering. Proceedings of the oceans 2000 MTS/IEEE, 3, 1963-1967
  3. Clay, C.S. and J.K. horne, 1994. Acoustic models of fish: the Atlantic cod(Gadus morhua). J. Acoust. Soc. Am., 96, 1661-1668 https://doi.org/10.1121/1.410245
  4. Demer, D.A. and S.G. Conti, 2003. Reconciling theoretical versus empirical target strength of krill: effects of phase variability on the distorted-wave born approximation. ICES J. Mar. Sci., 60, 429-434 https://doi.org/10.1016/S1054-3139(03)00002-X
  5. Furusawa, M., T. Asami and E. Hamada, 1994. Prediction of krill target strength by liquid prolate spheroid model. Fish. Sci., 60, 261-265 https://doi.org/10.2331/fishsci.60.261
  6. Furusawa, M., 1995. Review on plankton measurements by acoustic methods. J. Marine Acoust. Soc. Jpn., 33(1), 24-31
  7. Holliday, D.V. and R.E. Pieper, 1984. Acoustic measurement of zooplankton distribution in the sea. J. Cons. int. Explor. Mer., 46, 52-61
  8. Hwang, B.K., M. Frusawa and M. Ogata, 2007. Validation of Multi-frequency inversion method by using dummy scatterers of zooplankton. Fisheries Sci., 73(2), 250-262 https://doi.org/10.1111/j.1444-2906.2007.01331.x
  9. Kang, D.H. D.J Hwang, T. Mukai and K. Iida, 2004. Acoustic target strength of live japanese common squid(Todarodes pacifica) for applying biomass estimation. J. Kor. Fish. Soc., 37(4), 345-353
  10. McGehee, D.E., R.L. O Driscoll and L.V.M. Traykovski, 1998. Effects of orientation on acoustic scattering from antarctic krill at 120kHz. Deep-Sea Res. , 45, 1273-1294 https://doi.org/10.1016/S0967-0645(98)00036-8
  11. Mun, J.H, D.J. Lee, H.I. Shin and Y.W. Lee, 2006. Fish length dependance of target strength for black rockfish, goldeye rockfish at 70kHz and 120kHz. J. kor. Soc. Fish. Tech. 42(1), 30-37, 2006 https://doi.org/10.3796/KSFT.2006.42.1.030
  12. Simmonds, J. and D, Maclennan, 2005. Fisheries acoustics. Blackwell Publishing, Oxford, pp. 294-328
  13. Stanton, T.K., 1988. Sound scattering by cylinders of finite length :deformed cylinders. J. Acoust. Soc. Am., 86, 691-705 https://doi.org/10.1121/1.398193