한국수산과학회지 (Korean Journal of Fisheries and Aquatic Sciences)
- 제31권2호
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- Pages.210-216
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- 1998
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- 0374-8111(pISSN)
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- 2287-8815(eISSN)
북만 양식굴의 개체군 특성과 DHA 함량조성의 변동
Relevance of Population Group Properties and Fluctuation of DHA Content of The Pacific Oyster, Crassostrea gigas in Bukman, Korea
- KIM Yong-Sool (Department of Aquaculture, Gyeongsang National University) ;
- KANG Seok-Joong (Department of Aquaculture, Gyeongsang National University) ;
- JEONG Woo-Geon (Department of Aquaculture, Gyeongsang National University) ;
- CHO Chang-Hwan (Department of Aquaculture, Gyeongsang National University)
- 발행 : 1998.03.01
초록
(1) 통영시 관내 북만해역의 굴양식장군의 8개 조사양식장에서
Relationship between population group properties and docosahexaenoic acid (DHA) content of the Pacific oyster had been carried out at the Bukman oyster farm near Tongyeong based on the regular monthly sampling from November 1994 through April 1996. DHA content in lipids was least abundant in June and most abundant in November. Minimum DHA content close to 'zero' in lune suggests that much of DHA are being used for maturing and discharging of eggs and sperms, in consideration of the fact that lure is the spawning periods of the oyster. The corelationships among DHA content, mortality, and growth coefficient, have not been recognized. The approximate positive relations have been acknowledged between DHA content and the individual density in times of harvest, and also the individual weight. But it seems that the relaltions between DHA content and the individual weight are not directly related, rather it seems that it is the result from the population density effects caused by the relations between DHA and the number of individuls. But the meaning of the above mentioned relations can not be clearly defined yet.