The Korean Journal of Malacology (한국패류학회지)
- Volume 21 Issue 1
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- Pages.1-11
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- 2005
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- 1225-3480(pISSN)
Reproductive Biology of the Female Manila Clam, Ruditapes philippinarum (Bivalvia: Veneridae) on the West Coast of Korea
- Chung, Ee-Yung (School of Marine Life Science, Kunsan National University) ;
- Hur, Young-Baek (Namhae Marine Hatchery, National Fisheries Research and Development Institute) ;
- Shin, Moon0-Seup (School of Civil Engineering and Environmental Engineering, Kunsan National University) ;
- Kim, Yong-Min (Department of Fisheries Science, Graduated School, Kunsan National University)
- Published : 2005.06.01
Abstract
Reproductive cycle, first sexual maturity, spawning amount related with the size and spawning interval in female Ruditapes philippinarum were investigated by histological observation and the analysis of morphometric data during artificial spawning induction. Ruditapes philippinarum is dioecious and oviparous. The reproductive cycle of this species can be subdivided into five successive stages: early active stage (January to March), late active stage (February to May), ripe stage (April to August), partially spawned stage (May to October), and spent/inactive stage (August to February). The spawning period was once a year between May and early October, and the main spawning occurred between July and August when seawater temperature was approximately
Keywords
- Ruditapes philippinarum;
- gonadal maturation;
- first sexual maturity;
- artificial spawning amount;
- spawning interval