지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 1998.8
- 수록면
- 285 - 294 (10page)
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초록· 키워드
오류제보하기
When Cochlodinium polykrikoides came into the culture tanks through influent cultivated water during the red tides, hundred thousands of commercial flounders were concomitantly killed and many culturists suffered from a great deal of financial loss in the east coast of Korea. It is characterized by high sinking rate after sunset and the formation of clump which results in oxygen deficiency by its respiration at tank bottom under dark condition. We investigated the efficacy of hydrogen peroxide and chlorine dioxide, known to form free radicals, for extermination of red tide organism C. polykrikoides. When C. polykrikoides seawater with a density of 6,000 cells/㎖ was treated with 14, 28 and 42 ㎎/ℓ of hydrogen peroxide, its survival rate was markedly decreased to 9.8, 0.8 and 0.3% respectively immediately after 6 hours of treatments whereas when it was treated with 1.5, 2.1 and 3.0 ㎎/ℓ chlorine dioxide, its survival rate showed 87.7, 81.3 and 80.1% respectively at the same treatment time. Hydrogen peroxide was the effective agent since it has scarcely injured the cultured olive flounder when exposed to the tested concentration range of 14~28 ㎎/ℓ with the extermination of almost3 C. polykrikoides during the experimental period of 5 days and has shown the oxygen increase of approximately 1.23 ㎎/ℓ 2 hours immediately after the treatment of same concentration. We propose that the main mechanism to kill cultured olive flounder by C. polykrikoides in the land-based culture tank is assumed to be not by the toxicity of itself but by oxygen deficiency from the rapid respiration of dinoflagellate clump sunken to the tank bottom.
목차
Abstract
Introduction
Materials and Methods
Results and Discussion
Acknowledgements
References
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UCI(KEPA) : I410-ECN-0101-2009-529-015345405