Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Size Selectivity of Gill Net for Male Japanese Sandfish (Arctoscopus japonicus) off Gangwon in winter

강원 영안 겨울 도루묵(Arctoscopus japonicus) 수컷의 자망에 대한 어획선택성

  • Jeong, Eui-Cheol (Fisheries Resources Research Division, East Sea Fisheries Research Institute NFRDI) ;
  • Park, Hae-Hoon (Fisheries Resources Research Division, East Sea Fisheries Research Institute NFRDI) ;
  • Bae, Bong-Seong (Fisheries Resources Research Division, East Sea Fisheries Research Institute NFRDI) ;
  • Chang, Dae-Soo (Fisheries Resources Research Division, NFRDI) ;
  • Kim, Chan-Seob (Fisheries Resources Research Division, East Sea Fisheries Research Institute NFRDI) ;
  • Choi, Soo-Ha (Faculty of Marine Bioscience and Technology, Kangnung National University) ;
  • Cha, Hyung-Kee (Fisheries Resources Research Division, NFRDI)
  • 정의철 (국립수산과학원 동해수산연구소 어업자원과) ;
  • 박해훈 (국립수산과학원 동해수산연구소 어업자원과) ;
  • 배봉성 (국립수산과학원 동해수산연구소 어업자원과) ;
  • 장대수 (국립수산과학원 자원연구과) ;
  • 김찬섭 (국립수산과학원 동해수산연구소 어업자원과) ;
  • 최수하 (강릉대학교 해양생명공학부) ;
  • 차형기 (국립수산과학원 자원연구과)
  • Published : 2009.02.28
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Abstract

We describe a catch experiment and the size selectivity of gill nets for male Japanese sandfish (Arctoscopus japonicus) caught near Gosung, Korea. The experiment, which was conducted between October and December 2007, examined six different mesh sizes: 36.4, 39.4, 45.5, 51.5, 53.0, and 57.6 mm. The catch was mostly Japanese sandfish (91.3%) and some others (8.7%). More male Japanese sandfish were caught with smaller mesh sizes and more females with larger mesh sizes. Relationships between the weight and fork length of the male and female Japanese sandfish were obtained. The relationship between the catch (Y) and mesh size of the gill net (X) was $Y=0.1773X^3-5.3753X^2+40.042X+26.846$ ($R^2=0.99$). The selection curve for male Japanese sandfish caught in the experiment was fit, via Kitahara's method, to a polynomial equation, which was $s(R={\exp}\{(-2.1391\;R^3+24.294\;R^2-88.289\;R+105.5)-5.180\}$, where R=l/m, and l and m are the fork length and mesh size, respectively.

Keywords

References

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