Mesh Selectivity of Beam Trawl for Shrimps

새우조망의 망목선택성

  • Published : 2004.02.01


This study was conducted to mesh selectivity of Beam trawl for shrimps fishing experiment in the coastal waters around Geomundo, South sea of Korea, during from Oct. to Nov. 2002. The selectivity parameters of big head shrimp (Solenocera melantho) have been studied on the covered con-end method. with mesh of 8, 38, 51 and 61 mm. Selection curves and selection parameters were calculated by using a logistic function S=1/(1+exp-(aCL+b)). The mesh selection master curves were estimated by S=1/(1+exp$^{({\alpha}(CL/M)+{\beta}}$), and the optimum mesh size were calculated with (L/M)50 of master curve. Optimum mesh size and selectivity master curves for the southern rough shrimp (Yrachysalambria curvirostris) and smoothshell shrimp (Parapenaeopsis tenella) optimum mesh size and selectivity master curves were estimated by big head shrimp master curves. The results obtained are summarized as follows : Selection parameters '${\alpha}$' and '${\beta}$' of the master curve for big head shrimp were 8.84 and -5.89, and The selection factor of the master curve (L/M)$_{50}$ was 0.67. The optimum mesh size of minimum length for sexual maturity for big head shrimp was 30.7 mm. Estimated (L/M)$_{50}$ for southern rough shrimp and smoothshell shrimp by using the master curve of big head shrimp was 0.73 and the optimum mesh sizes were 25.5 mm for southern rough shrimp and 16.9 mm for smoothshell shrimp, respectively.


Solenocera melantho;Trachysalambria curvirostris;Parapenaeopsis tenella;mesh selectivity;optimum mesh sizes


  1. Graham N. (2003): By-catch reduction in the in the North Sea brown shrimp, Crangon crangon fisheries using a rigid separation Nordm$\phi$re grid (grate). Fish. Res. 59, 393~407
  2. Lancaster J. and Frid C. L. J. (2002) : The fate of discarded juvenile brown shrimps (Crangon crangon) in the Solway Firth UK fishery. Fish. Res 58, 95-107
  3. Polet H. (2002) : electivity experiments with sorting grids in the North Sea brown shrimp (Crangon crangon) fishery. Fish. Res. 54; 217-233
  4. Ragonese S., M. L. Bianchini and L. Di. Stefano (2002) : Trawl cod-end selectivity for deepwater red shrimp (Aristaeomorpha foliacea, Risso 1827) in the Strait of Sicily (Mediterranean Sea). Fish. Res. 57, 131-144
  5. Campos A., P. Fonseca and K. Erizini (2002) : Size selectivity of diamond and square mesh cod ends for rose shrimp (Parapenaeus longirostris) and Norway Lobster (Nephrops norvegicus) off the Portuguese south coast. Fish. Res. 58, 281-301
  6. Sobrino I., T. garcia and J. Barb (2000) : Trawl gear selectivity and the effect of mesh size on the deep-water rose shrimp (Parapeneaus longirostris, Lucas, 1846) fishery off the gulf of cadiz (SW Spain). Fish. Res. 44, 235-245
  7. Polet H. (2000): Codendand whole trawl selectivity of a shrimp beam trawl used in the North Sea. Fish. Res. 48, 167-183
  8. Mounsey, R. P., G. A Baulch and R. C. Buckworth(l995) : Development of a trawl efficiency device (TED) for Australian prawn fisheries. I. The Aus TED design. Fish. Res., 22, 99-105
  9. Nishikawa, T., Tanda, M. and Nagahama, T.(1994) : Mesh selectivity of small otter trawl targeting southern rough shrimp trachypenaeus curvirostris in Bay. Bull. Hyogo. Prefect. Fish. Exp. Stn. 31. 1-8
  10. Tokai, T. (1993) : Fisheries Management of a Small Shrimp Trawl in the Seto Inland Sea. -Discarded Fishes and Mesh Size Regulation - Bull. Nansai. Natl. Fish. Res. Inst. 26, 31-106
  11. Tokai, T. and H. Sak aji (1993): Mesh Selectivity of a Shrimp Trawl for Tara Velvet Shrimp Metapenaeopsis acclivis, Kishi velvet Shrimp Metapenaeopsis dalei and Smoothshell Shrimp Parapenaeopsis tenella. Bull. Nansai. Natl. Fish. Res. Inst. 26, 21-30
  12. LEE J. H, S. G KIM, J. G. KIM (1992) : A Study on the Selectivity of Trawl net for the Demersal Fishes in the East chaina Sea - I, Catch Rate by Meash Size of Cod-end. Bull. Korean Soc. Fish. Tech., 28, 360-370
  13. Vendeville, P. (1990): Tropical shrimp fisheries, -Types of fishing gear used and their selectivity-, Roma, FAO, pp. 75
  14. Tokai, T, and T Kitahara (1989) : Methods of determining the mesh selectivity curve of trwalnet. Nippon Suisan Gakkaishl; 55, 643-649 (in Japanese)
  15. Miyao, M. and Yamaguchi, K. (1989) : Mesh selectivity for deep-sea shrimp, Pandalus borealis KROYER by thedanish seine fishert (Teguri Type 1). Bull. Niigata. Prefect. Fish. Exp. Stn. 13. 1-10
  16. 안회춘 . 양용수 . 박창두 . 조삼광 . 정의철 (2000) : 끌그물 탈출어류의 생존율 향상연구. 수진사업보고서. 122-131
  17. 권병국 . 이주희 . 이춘우 . 김용식 . 안영일 . 김정문 (2001) : 동해구트를 어구어법의 개량, 한국어업기술학회지 37(2), 106-116
  18. 金良燮 (1994) : 새우 빔 트롤漁具의 改良에 관한 硏究. 麗水水大 水産工學科 碩師學位 論文

Cited by

  1. Catches characteristics between fishing area and non-fishing area in the shrimp beam trawl of Geoje waters, Korea vol.49, pp.4, 2013,
  2. Size Selectivity of a Shrimp Beam Trawl for the Southern Rough Shrimp Trachysalambria curvirostris with the Extended SELECT Method vol.44, pp.4, 2011,
  3. Catching efficiency of a shrimp beam trawl according to the length of beam and wing net and its influence on the hauling work vol.50, pp.3, 2014,