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Mesh selectivity of gill net for female Japanese sandfish (Arctoscopus japonicus) in spawning season

산란기 도루묵(Arctoscopus japonicus) 암컷의 자망에 대한 망목선택성

  • Park, Hae-Hoon (Fisheries Resources Research Team, East Sea Fisheries Research Institute, NFRDI) ;
  • Jeong, Eui-Cheol (Fisheries Resources Research Team, East Sea Fisheries Research Institute, NFRDI) ;
  • Bae, Bong-Seong (Fisheries Resources Research Team, East Sea Fisheries Research Institute, NFRDI) ;
  • Yang, Jae-Hyeong (Fisheries Resources Research Team, East Sea Fisheries Research Institute, NFRDI) ;
  • Chol, Soo-Ha (Faculty of Marine Bioscience and Technology, Kangnung National University) ;
  • Lee, Sung-Il (Fisheries Resources Research Team, East Sea Fisheries Research Institute, NFRDI)
  • 박해훈 (국립수산과학원 동해수산연구소 어업자원팀) ;
  • 정의철 (국립수산과학원 동해수산연구소 어업자원팀) ;
  • 배봉성 (국립수산과학원 동해수산연구소 어업자원팀) ;
  • 양재형 (국립수산과학원 동해수산연구소 어업자원팀) ;
  • 최수하 (강릉대학교 해양생명과학부) ;
  • 이성일 (국립수산과학원 동해수산연구소 어업자원팀)
  • Published : 2007.11.30

Abstract

The mesh selectivity of gill net for Japanese sandfish (Arctoscopus japonicus) caught in the East Sea, Korea was described. The experiment was conducted with five different kinds of mesh size (39.4, 45.5, 51.5, 53.0, 57.6mm) between November and December 2006 in spawning season. The catch was mostly Japanese sandfish (93.3%) and some others (6.7%), and almost all of the female Japanese sandfish were larger than the fork length at 50% maturity (16.7cm). The selection curve for the female Japanese sandfish caught from the experiments was fitted by the Kitahara's method to a polynomial equation which was $s(R)={\exp}\{(0.2584R^3-5.3445R^2+32.269R-59.868)-0.6585\}$ where R=l/m, and l and m are fork length and mesh size, respectively.

Keywords

Selectivity;Gill net;Kitahara's method;Japanese sandfish

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