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Chuuk Lagoon에 서식하는 흑진주조개, Pinctada margaritifera (Linnaeus 1758)의 2003년 하계 생식소 발달 및 산란 특성
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  • Chuuk Lagoon에 서식하는 흑진주조개, Pinctada margaritifera (Linnaeus 1758)의 2003년 하계 생식소 발달 및 산란 특성
저자명
강도형,박흥식,이순길,최광식,Kang. Do-Hyung,Park. Heung-Sik,Yi. Soon-Kil,Choi. Kwang-Sik
간행물명
Ocean and polar research
권/호정보
2005년|27권 3호|pp.351-358 (8 pages)
발행정보
한국해양연구원
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이 논문은 한국과학기술정보연구원과 논문 연계를 통해 무료로 제공되는 원문입니다.
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기타언어초록

Reproductive condition of the tropical blacklip pearl oyster, Pinctada margaritifera collected during the period July through September 2003 from Chuuk Lagoon, Federated State of Micronesia was investigated using histology. The level of gonad development for each pearl oyster was determined with an average score of five microscopic fields, and the average score was used as the maturity index (ML). All wild pearl oysters collected in July did exhibit fully ripe eggs in their ovaries ($45{sim}50{mu}M$ in diameter), indicating that they were ready for spawning. In mid August most wild pearl oysters were in spawning and M1 dropped dramatically from mid- to late September, suggesting that the wild pearl oyster completed spawning during this period. In contrast, the cultivated pearl oysters collected in mid-September held ripe eggs in the ovaries and only a few of them spawned, indicating that gonad maturation of the cultivated pearl oyster was somewhat slower than that of the wild pearl oyster in Chuuk Lagoon during the summer period. Histological analysis also indicated that spawning of the pearl oyster is rather incomplete and they may spawn continuously during summer.