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http://dx.doi.org/10.5657/kfas.2006.39.1.027

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

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)
Publication Information
Korean Journal of Fisheries and Aquatic Sciences / v.39, no.1, 2006 , pp. 27-34 More about this Journal
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
Asterina pectinifera; GSI; GI; Reproductive cycle;
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