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

  • 제46권3호
  • /
  • Pages.195-203
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  • 2010
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  • 2671-9940(pISSN)
  • /
  • 2671-9924(eISSN)
한국수산해양기술학회 (The Korean Society of Fisheries and Ocean Technology)
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스프링식 붕장어그물통발의 어획성능에 미치는 입구크기의 영향

The effect of the entrance size on the catch of trap for conger eel

  • 김성훈 (국립수산과학원 시스템공학과) ;
  • 박창두 (국립수산과학원 시스템공학과) ;
  • 박성욱 (국립수산과학원 시스템공학과) ;
  • 신종근 (국립수산과학원 남서해수산연구소 자원환경과)
  • 투고 : 2010.07.01
  • 심사 : 2010.07.25
  • 발행 : 2010.08.31
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초록

Recently, Fishermen have required to expand the circumference of trap entrance for conger eel because it was difficult to take the catch out as well as to put the baits into. A series of fishing experiments was carried out in coastal areas of Tongyoung, Korea in 2008 and 2009 using the traps to describe the effect of the entrance size on the catch. The experimental traps (five types) were used in filed experiments with four types circumference size traps (140, 180, 220 and 260mm) with mesh size 22mm and another type was used the same one usually using in filed with mesh size 35mm (750mm circumference). The experiment results were, the conger eels of total length 35mm more or so were caught 85, 93, 142 and 176 individual by the experiment traps with mesh size 22mm as increase circumference size from 140mm to 260mm, respectively. And the small conger eels of the total length below 35mm to be prohibited to catch by law were caught 145, 160, 288 and 304 individual according to increase the circumference size of trap, respectively. In addition, in case of the trap with mesh size 22mm, bycatches were 230 - 260 individuals and much more than bycatches of the trap with mesh size 35mm. In conclusion, when we expand the circumference size of trap according to fishermen's requirement, we should review not only economic of fishery but also increasement the bycatch of non-target fishes and small size fishes.

키워드

과제정보

연구 과제번호 : 생분해성 수산자재 응용기술 개발 및 연안어업 체질개선을 위한 핵심전략과제

연구 과제 주관 기관 : 국립수산과학원

참고문헌

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피인용 문헌

  1. Fishing capacity and bycatch on spring net pot for conger eel by entrance size vol.52, pp.1, 2016, https://doi.org/10.3796/KSFT.2016.52.1.009
  2. On the hydrodynamic resistance and stabilization of the coonstripe shrimp pot to reduce catch of a small size shrimp vol.48, pp.1, 2012, https://doi.org/10.3796/KSFT.2012.48.1.001