한국어류학회지 (Korean Journal of Ichthyology)

  • 제18권4호
  • /
  • Pages.363-367
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  • 2006
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  • 1225-8598(pISSN)
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  • 2288-3371(eISSN)
한국어류학회 (The Ichthyological Society of Korea)
권호 표지

한국 동해안 참가자미, Pleuronectes herzensteini (Jordan et Snyder)의 성숙과 산란

Maturity and Spawning of Brown Sole, Pleuronectes herzensteini (Jordan et Snyder) in the East Sea of Korea

  • 차형기 (국립수산과학원 동해수산연구소) ;
  • 박기영 (강릉대학교 해양생명공학부) ;
  • 이성일 (국립수산과학원 동해수산연구소) ;
  • 박헌우 (강릉대학교 해양생명공학부) ;
  • 권혁찬 (국립수산과학원 동해수산연구소) ;
  • 최수하 (강릉대학교 해양생명공학부)
  • Cha, Hyung Kee (East Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Park, Kie Young (Faculty of Marine Bioscience & Technology, Kangnung National University) ;
  • Lee, Sung Il (East Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Park, Heon Woo (Faculty of Marine Bioscience & Technology, Kangnung National University) ;
  • Kwon, Hyeok Chan (East Sea Fisheries Research Institute, National Fisheries Research & Development Institute) ;
  • Choi, Soo Ha (Faculty of Marine Bioscience & Technology, Kangnung National University)
  • 투고 : 2006.11.06
  • 심사 : 2006.12.01
  • 발행 : 2006.12.31
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초록

2003년 4월부터 2004년 3월까지 우리나라 동해안 강원도 양양군 현남면 남애리 연안에서 어획된 참가자미를 대상으로 성숙과 산란에 관한 연구를 수행하였다. 암컷의 생식소 발달과정 및 생식소중량지수의 월 변화로부터 참가자미의 산란기는 2~5월, 주 산란기는 3~4월로 추정된다. 전장 (TL)과 포란수 (F)간의 관계식은 $F=11.307TL^{2.628}$으로 체장이 커질수록 포란수도 증가하는 경향을 보였다. 산란에 참여하는 군성숙체장은 전장 17.8 cm이었고, 이때의 연령은 3세이었다. 전 조사기간에 대한 성비 (암 수)는 60.2 : 39.8로 암컷이 우세하였고, 체급별 성비는 전장 17 cm 이하에서는 수컷의 비율이 높았으나 체장이 커질수록 암컷의 비율이 증가하여 27 cm 이상에서는 전 출현개체가 암컷이었다.

The maturity and spawning of brown sole, Pleuronectes herzensteini were investigated using samples randomly collected in the East Sea of Korea from April, 2003 to March, 2004. We analyzed monthly changes in maturity stages, gonadosomatic index (GSI), egg diameter, fecundity (F), total length (TL) at 50% group maturity, and sex ratio. The spawning period was February to May, and the main spawning period was March to April. The fecundity was 38,702 eggs at 22 cm (TL) to 133,085 eggs at 37 cm (TL), and the relationship between TL and F was $F=11.307TL^{2.628}$. The TL at first maturity was 15 cm and at 100% maturity, 21 cm. Thus, TL at 50% group maturity was estimated to be 17.8 cm, which corrensponded to the age of 3 years. The sex ratio was 60.2 for female and 39.8 for male, where the female population was seen to be slightly predominant.

키워드

과제정보

연구 과제번호 : 동해연안어업자원관리연구

연구 과제 주관 기관 : 국립수산과학원

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