Korean Journal of Fisheries and Aquatic Sciences (한국수산과학회지)

The Korean Society of Fisheries and Aquatic Science (한국수산과학회)
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Histological and Biochemical Analyses on Reproductive Cycle of Gomphina melanaegis (Bivalvia; Veneridae)

민들조개 (Gomphina melanaegis) 생식주기에 관한 조직.생화학적 연구

  • Kim, Su-Kyoung (East Sea Fisheries Research Institute, NFRDI) ;
  • Lee, Chu (East Sea Fisheries Research Institute, NFRDI) ;
  • Kim, Yang-Dae (East Sea Fisheries Research Institute, NFRDI) ;
  • Jo, Q-Tae (East Sea Fisheries Research Institute, NFRDI) ;
  • Lee, Jong-Ha (East Sea Fisheries Research Institute, NFRDI) ;
  • Park, Min-Woo (East Sea Fisheries Research Institute, NFRDI) ;
  • Kim, Jae-Won (Dept. of Marine Bio-resources, Gangwon Provincial University) ;
  • Gong, Yang-Geun (Youngdong Inland Fisheries Research Institute)
  • 김수경 (국립수산과학원 동해수산연구소) ;
  • 이주 (국립수산과학원 동해수산연구소) ;
  • 김영대 (국립수산과학원 동해수산연구소) ;
  • 조규태 (국립수산과학원 동해수산연구소) ;
  • 이종하 (국립수산과학원 동해수산연구소) ;
  • 박민우 (국립수산과학원 동해수산연구소) ;
  • 김재원 (강원도립대학교 생명과학부) ;
  • 공용근 (영동내수면연구소)
  • Published : 2009.02.28
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Abstract

The seasonal reproductive cycle of Gomphina melanaegis collected in the coastal area of Jumunjin, between April 2006 and March 2007, was analyzed. Maturation cycle parameters such as the gonad index (GI), ovarian egg diameter, frequency of developmental stages, protein content, and RNA/DNA variation in the gonads were analyzed monthly for the 40 samples. According to the indices from histological sections, the frequency of gonad developmental stages, and the oocyte diameter, this clam has a long-term partial spawning pattern from March to October. However, GI and nucleic acid values showed that the mature stage is from March to July and that the main spawning season is August. The peak RNA and DNA contents were good indicators of sexual maturation in females and males, respectively. The variation in protein content corresponded with the RNA/DNA ratios.

Keywords

References

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