The Korean Journal of Malacology (한국패류학회지)
- Volume 24 Issue 1
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- Pages.1-10
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- 2008
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- 1225-3480(pISSN)
Spermatogenesis and Reproductive Cycle in Male Spisula sachalinensis (Bivalvia: Mactridae) of Korea
- Lee, Ki-Yong (School of Marine Life Science, College of Ocean Science & Technology, Kunsan National University) ;
- Chung, Ee-Yung (Korea Marine Environment & Ecosystem Research Institute) ;
- Lee, Jeong-Yong (Marine Ranching Development & Management Center, NFRDI)
- Published : 2008.05.31
Abstract
Spermatogenesis and the reproductive cycle in male Spisula sachalinensis were investigated by cytological and histological observations. The morphology of the spermatozoon has a primitive type and is similar to those of other bivalves in that it contains a short midpiece with four mitochondria surrounding the centrioles. But spermatozoon of this species has not axial rod and satellite body in the midpiece. The morphologies of the sperm nucleus type and the acrosome shape of this species have a globe-shape type and modified cap-like shape, respectively. The spermatozoon is approximately
Keywords
- Spisula sachalinensis;
- Ultrastructure;
- Spermatogenesis;
- Germ Cell Differentiation;
- Reproductive cycle