한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)

  • 제43권6호
  • /
  • Pages.670-678
  • /
  • 2010
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  • 0374-8111(pISSN)
  • /
  • 2287-8815(eISSN)
한국수산과학회 (The Korean Society of Fisheries and Aquatic Science)
권호 표지
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겨울철 동해 왕돌토 지역에 서식하는 대게자원 (Chionoecetes opilio) 출현 양상

Winter Occurrence Pattern of Chionoecetes opilio around Wangdol Reef in the East Sea near Uljin

  • 김성한 (군산대학교 해양생명과학과)
  • Kim, Sung-Han (College of Ocean Science Department of Aquaculture and Aquatic Resources, Kunsan National University)
  • 투고 : 2010.11.11
  • 심사 : 2010.12.20
  • 발행 : 2010.12.31
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초록

An ecological investigation was conducted in winter from November 2007 to February 2008, around Wangdol Reef in the East Sea to analyze the population structure and fecundity of Chinoecetes opilio. The sex ratio was 30.11:69.89% (female:male) in November, 62.03:37.97% in December, 37.59:62.41% in January and 14.69:85.31% in February. Regression equations indicated highly positive relationships between size and weight parameters (carapace length, width, total weight). During the sampling period ovigerous females were continuously collected. The percentage of ovigerous females was 96% in November, 90.57% in December 89.80% in January, and 88.46% in February. The average number of embryos was 64,800. The regression equation between carapace width and the number of embryos was y = 2.6805x - 0.9182 ($R^2$ = 0.7166). Embryo volume increased as embryo development proceeded. The mean size of an embryo was 0.72 mm. Embryo volume ranged from 0.42 to $0.84\;m^3$ during embryo developmental stages 1 to 3.

키워드

참고문헌

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