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Sexual Maturation and Reproduction Cycle of the Bat Star, Asterina pectinifera (Echinodermata: Asteroidae)

별불가사리, Asterina pectinifera의 성 성숙과 생식주기

  • Cho, In-Young (Department of Marine Biology, Pukyong National University) ;
  • Lee, Jung-Sik (Department of Aqualife Medicine, Yosu National University) ;
  • Yoo, Myoung-Suk (Department of Marine Biology, Pukyong National University)
  • 최인영 (부경대학교 자원생물학과) ;
  • 이정식 (여수대학교 수산생명의학과) ;
  • 유명숙 (부경대학교 자원생물학과)
  • Published : 2006.02.01

Abstract

Sexual maturation and reproductive cycle of the bat star Asterina pectinifera were investigated by histological method. Specimens were collected monthly in Donghwari, Gosunggun, Korea from January 2004 to February 2005. The bat star was dioecious. The gonads are composed of a number of gametogenic follicles. The gonadosomatic index (GSI) of female and male were reached the maximum in July (5.72, 4.54) and the minimum in December (0.89) and January, February (0.51), and the gonad index (GI) of female and male were reached the maximum in July (3.53, 3.91) and the minimum in August (0.95) and October to December (1.0), respectively. The main spawning was from August to September. The reproductive cycle of the bat star could be divided into five stages: in the female, inactive (November-February), early active (January February), late active (March-June), ripe (July), spent and degenerative (August-November) and in the male, inactive (November-February), early active (January-March), late active (April-June), ripe (July), spent and degenerative (August-October), respectively.

Keywords

References

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