英语翻译Results and DiscussionAccording to reported information,
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英语翻译
Results and Discussion
According to reported information,the average concentrationof Cd is about 0.05 lg Cd/L in unpolluted water,while in coastal waters it tends to increase to over 0.1 lgCd/L and even over 10 lg Cd/L in some areas due toanthropogenic input,local geological conditions,andhuman activities,according to reported data (Soegiantoet al.1999a).Likewise,Zn concentrations in coast waterhad also been detected as 4–800 lg Zn/L (Bryan 1976).Thus,the impact of heavy metals Cd and Zn should be seriously considered when coastal seawater is directly usedfor shrimp culture and the human health is concerned.
Estimation of LT50 values of L.vannamei was based onthe results of mortality and the determined LC50 values.Regression curves were drawn from LC50 values and exposure times as shown in Table 1 and Fig.1.LT50 values were calculated based on the regression equations as follows:Y = 23.80323 71.54851 9 (e((X - 0.02938)/0.07509)) (R2 = 0.999) for the Cd set; and Y = 3.68762 93.35289 (e(-(X - 0.13033)/0.30121)) (R2 = 0.989) for the Zn set,whereY is the exposure time (h) and X is the LC50 metal concentration(mg/L) for either Cd or Zn.Standard checks of bothregression equations were between -10% and 10% as shownin Table 1.The results of the estimation of LT50 values aftercalculations based on LC50 data sets are shown in Table 2.According to our results,LT50 values of L.vannamei for 1.0,
1.5,2.0,2.5,3.0,3.5,and 4.0 mg/L concentrations were estimated as shown in Table 2.
Results and Discussion
According to reported information,the average concentrationof Cd is about 0.05 lg Cd/L in unpolluted water,while in coastal waters it tends to increase to over 0.1 lgCd/L and even over 10 lg Cd/L in some areas due toanthropogenic input,local geological conditions,andhuman activities,according to reported data (Soegiantoet al.1999a).Likewise,Zn concentrations in coast waterhad also been detected as 4–800 lg Zn/L (Bryan 1976).Thus,the impact of heavy metals Cd and Zn should be seriously considered when coastal seawater is directly usedfor shrimp culture and the human health is concerned.
Estimation of LT50 values of L.vannamei was based onthe results of mortality and the determined LC50 values.Regression curves were drawn from LC50 values and exposure times as shown in Table 1 and Fig.1.LT50 values were calculated based on the regression equations as follows:Y = 23.80323 71.54851 9 (e((X - 0.02938)/0.07509)) (R2 = 0.999) for the Cd set; and Y = 3.68762 93.35289 (e(-(X - 0.13033)/0.30121)) (R2 = 0.989) for the Zn set,whereY is the exposure time (h) and X is the LC50 metal concentration(mg/L) for either Cd or Zn.Standard checks of bothregression equations were between -10% and 10% as shownin Table 1.The results of the estimation of LT50 values aftercalculations based on LC50 data sets are shown in Table 2.According to our results,LT50 values of L.vannamei for 1.0,
1.5,2.0,2.5,3.0,3.5,and 4.0 mg/L concentrations were estimated as shown in Table 2.
结果与讨论
根据报告的信息,平均concentrationof裁谈会是约0.05 LG电子的CD / L在没有污染的水,而在沿海水域往往上升至0.1 lgCd / L和甚至超过10 LG电子的CD / L在一些地区由于toanthropogenic投入,地方地质条件, andhuman活动,根据报告的数据( Soegiantoet基地. 1999年) .同样,锌浓度海岸waterhad也被检测为4-800 LG电子锌/ L的(布莱恩1976年) .因此,所产生的影响重金属镉和锌应该认真考虑在沿海海水直接usedfor对虾养殖和人体健康关注.
估计LT50值属南美白对虾是根据onthe结果死亡率和确定LC50值values.Regression曲线选自半致死浓度值和曝光时间,列于表1和图. 1 . LT50值计算的回归方程如下:为Y = 23.80323 ? 71.54851 9条( e ( (十- 0.02938 ) / 0.07509 ) ) ( R2的= 0.999 ) ,裁谈会集;和Y = 3.68762 ? 93.35289 (英文( - (十- 0.13033 ) / 0.30121 ) ) ( R2的= 0.989 )为锌设置, whereY是曝光时间( h )和X是LC50值金属浓度( mg / L )两种镉或锌.标准检查bothregression方程-10 %和10 %作为shownin表1 .结果的估计LT50值aftercalculations基于LC50值数据集列于表2.According我们的结果, LT50值的影响南美白对虾为1.0 ,
1.5 , 2.0 , 2.5 , 3.0 , 3.5和4.0 mg / L的浓度,估计如表2所示.
根据报告的信息,平均concentrationof裁谈会是约0.05 LG电子的CD / L在没有污染的水,而在沿海水域往往上升至0.1 lgCd / L和甚至超过10 LG电子的CD / L在一些地区由于toanthropogenic投入,地方地质条件, andhuman活动,根据报告的数据( Soegiantoet基地. 1999年) .同样,锌浓度海岸waterhad也被检测为4-800 LG电子锌/ L的(布莱恩1976年) .因此,所产生的影响重金属镉和锌应该认真考虑在沿海海水直接usedfor对虾养殖和人体健康关注.
估计LT50值属南美白对虾是根据onthe结果死亡率和确定LC50值values.Regression曲线选自半致死浓度值和曝光时间,列于表1和图. 1 . LT50值计算的回归方程如下:为Y = 23.80323 ? 71.54851 9条( e ( (十- 0.02938 ) / 0.07509 ) ) ( R2的= 0.999 ) ,裁谈会集;和Y = 3.68762 ? 93.35289 (英文( - (十- 0.13033 ) / 0.30121 ) ) ( R2的= 0.989 )为锌设置, whereY是曝光时间( h )和X是LC50值金属浓度( mg / L )两种镉或锌.标准检查bothregression方程-10 %和10 %作为shownin表1 .结果的估计LT50值aftercalculations基于LC50值数据集列于表2.According我们的结果, LT50值的影响南美白对虾为1.0 ,
1.5 , 2.0 , 2.5 , 3.0 , 3.5和4.0 mg / L的浓度,估计如表2所示.
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