The Korean Journal of Malacology (한국패류학회지)
- Volume 21 Issue 2 Serial No. 34
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- Pages.95-105
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- 2005
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- 1225-3480(pISSN)
Ultrastructural Study on Spermatogenesis and Sexual Maturation of the Male Jicon Scallop, Chlamys farreri on the West Coast of Korea
- Chung, Ee-Yung (School of Marine Live Science, Kunsan National University) ;
- Park, Ki-Yeol (Shellfish Research Center, National Fisheries and development Institute) ;
- Song, Pal-Won (West Sea Fisheries Research Institute)
- Published : 2005.12.31
Abstract
Gonadosomatic index, reproductive cycle, spermatogenesis and first sexual maturity of Chlamys farreri were investigated by cytological and histological observations, from January 1998 to December 1999. The gonadosomatic index (GSI) rapidly increased in April and reached a maximum in May when seawater temperature rapidly increase. Then the GSI gradually decreased from June to August when spawning occur. Accordingly, monthly changes in the GSI in males coincide with the reproductive cycle. The spermatozoon of Chlamys farreri is the primitive type found in external fertilization species. The head of the spermatozoon is approximately