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

The Korean Society of Fisheries and Ocean Technology (한국수산해양기술학회)
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Reproductive ecology of the blackthroat seaperch, Doderleinia berycoides (Hilgendorf) in South Sea of Korean waters

한국 남해에 서식하는 눈볼대, blackthroat seaperch, Doderleinia berycoides (Hilgendorf)의 생식생태연구

  • Cha, Hyung-Kee (Fisheries Resources and Environment Division, Southwest sea Fisheries Research Institute, NFRDI) ;
  • Kang, Su-Kyung (Fisheries Resources Management Division, NFRDI) ;
  • Oh, Taeg-Yun (Fisheries Resources Management Division, NFRDI) ;
  • Choi, Jung-Hwa (Fisheries Resources Management Division, NFRDI)
  • 차형기 (국립수산과학원 남서해수산연구소 자원환경과) ;
  • 강수경 (국립수산과학원 자원관리과) ;
  • 오택윤 (국립수산과학원 자원관리과) ;
  • 최정화 (국립수산과학원 자원관리과)
  • Received : 2010.09.03
  • Accepted : 2010.11.09
  • Published : 2010.11.30
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Abstract

Maturation and spawning of the Blackthroat seaperch, Doderleinia berycoides were investigated based on the samples captured in Korean waters from January 2008 to December 2009. Gonadosomatic index began to increase in June, and reached maximum between July to September. After spawning it began to decrease from October. Reproductive season was estimated to July-September, with peak in August. Fecundity was proportional to the size of the female, with the clutch size varying from 115,500 eggs in the smallest female (TL〓28.2cm) to 652,000 eggs in the largest (TL〓33.5cm). Size at 50% sexual maturity ($TL_{50}$), determined from mature females, was 29.6cm. Annual reproductive cycles of this species could be divided into six successive stages; immature stage (October-May), nucleolus stage (June-July), yolk vesicle stage (July-August), vitellogenic stage (June-September), ripe and spent stage (August-October).

Keywords

References

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