| Acute Toxicity of Formalin to the Red-tide Dinoflageilate Prorocentrum minimum Schiller （Protozoa, Mastigophora） |
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| 作者姓名： | XUHenglong SONGWeibo ZHUMingzhuang QIUYantao MAHonggang |
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| 作者单位： | [1]TheLabofProtozoology,KLMEM,OceanUniversityofChina,Qingdao266003,P.R.China／／DepartmentofBiology,LiaochengUniversity,Liaocheng252059,P.R.China [2]TheLabofProtozoology,KLMEM,OceanUniversityofChina,Qingdao266003,P.R.China |
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| 摘 要： | The acute toxic levels of formalin to a marine red-tide dinoflagellate Prorocentrum minimum Schiller (Mastigophora, Dinoflagellida) were determined by linear regression analysis. The data obtained revealed that there is a close regression relationship between logarithmic concentrations of formalin and mortality probit scales of the organism when exposure times are 1, 2, 6, 12, 24 h. The median lethal concentrations (LC50 values) obtained from correlation analysis for these exposure times (with 95% confidence intervals), were 11.83, 6.76, 4.37, 4.27 and 3.98mgL^-1 respectively. A toxicity curve was obtained to connect the exposure time and LC50 value from the correlation between them. The results indicated that P. minimum could be killed or fixed by formalin in the concentration range of 4-12mgL^-1 within 1-24h.
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| 关 键 词： | 毒性研究 福尔马林 腰鞭毛虫 原生动物 生物测定 |
| 收稿时间： | 28 September 2003 |
| 修稿时间： | 2 February 2004 |
Acute toxicity of formalin to the red-tide dinoflagellate <Emphasis Type="Italic">Prorocentrum minimum</Emphasis> schiller (protozoa,mastigophora) |
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| XUHenglong SONGWeibo ZHUMingzhuang QIUYantao MAHonggang.Acute toxicity of formalin to the red-tide dinoflagellate Prorocentrum minimum schiller (protozoa,mastigophora)[J].Journal of Ocean University of China,2005,4(1):89-92. |
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| Authors: | Xu Henglong Song Weibo Zhu Mingzhuang Qiu Yantao Ma Honggang |
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| Institution: | (1) The Lab of Protozoology, KLMEM, Ocean University of China, 266003 Qingdao, P.R.China;(2) Department of Biology, Liaocheng University, 252059 Liaocheng, P.R.China |
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| Abstract: | The acute toxic levels of formalin to a marine red-tide dinoflagellate Prorocentrum minimum Schiller (Mastigophora, Dinoflagellida) were determined by linear regression analysis. The data obtained revealed that there
is a close regression relationship between logarithmic concentrations of formalin and mortality probit scales of the organism
when exposure times are 1, 2, 6, 12, 24h. The median lethal concentrations (LC50 values) obtained from correlation analysis for these exposure times (with 95% confidence intervals), were 11.83, 6.76, 4.37,
4.27 and 3.98mgL−1, respectively. A toxicity curve was obtained to connect the exposure time and LC50 value from the correlation between them.
The results indicated that P. minimum could be killed or fixed by formalin in the concentration range of 4-12 mgL−1 within l-24h. |
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| Keywords: | toxicity formalin dinoflagellate Prorocentrum minimum bioassay |
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