Acute Toxicity of Formalin to the Red-tide Dinoflagellate Prorocentrum minimum Schiller(Protozoa,Mastigophora)  

作　　者：XUHenglong SONGWeibo ZHUMingzhuang QIUYantao MAHonggang 

机构地区：[1]TheLabofProtozoology,KLMEM,OceanUniversityofChina,Qingdao266003,P.R.China／／DepartmentofBiology,LiaochengUniversity,Liaocheng252059,P.R.China [2]TheLabofProtozoology,KLMEM,OceanUniversityofChina,Qingdao266003,P.R.China

出　　处：《Journal of Ocean University of China》2005年第1期89-92,共4页中国海洋大学学报（英文版）

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, 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 4-12mgL-1 within 1-24h.The acute toxic levels of formalin to a marine red-tide dinoflagellateProrocentrum minimum Schiller (Mastigophora, Dinoflagellida) were determined by linear regressionanalysis. The data obtained revealed that there is a close regression relationship betweenlogarithmic concentrations of formalin and mortality probit scales of the organism when exposuretimes are 1, 2, 6, 12, 24 h. The median lethal concentrations (LC_(50) values) obtained fromcorrelation analysis for these exposure times (with 95% confidence intervals), were 11.83, 6.76,4.37, 4.27 and 3.98 mg L^(-1), respectively. A toxicity curve was obtained to connect the exposuretime and LC_(50) value from the correlation between them. The results indicated that P. minimumcould be killed or fixed by formalin in the concentration range of 4-12 mg L^(-1) within 1-24h.

关 键 词：TOXICITY FORMALIN DINOFLAGELLATE prorocentrum minimum BIOASSAY 

分 类 号：Q959.112.6[生物学—动物学]