Effect of heavy metal model mixture on rainbow trout biological parameters
Effect of heavy metal model mixture on rainbow trout biological parameters
复制标题
重金属模型混合物对虹鳟鱼生物学参数的影响
DOI：
--
复制
发表时间：
2006
期刊：
影响因子：
--
通讯作者：
M. Zita
中科院分区：
文献类型：
--
作者：
M. Zita
利用一组生物学参数对维尔纽斯-考纳斯-克莱普ėda公路附近土壤中的重金属模型混合物(HMMM)的急性和长期毒性进行了研究。浓度为129.7%的HMMM溶液为：Cu0.66；Zn0.93；Pb4.7；Ni0.66；Cr0.33；Mn18 mg/L，计算出虹鱼幼鱼48小时的LC_(50)值为129.7%，96小时的LC_(50)值为108.97%。而21.79%和10.89%的HMMM溶液对鱼的肝重和肝体指数均有显著影响。血液参数(红细胞计数、红细胞压积水平、白细胞计数)的变化显示出对鱼类的特定HMMM毒性。暴露于所研究的所有浓度的HMMM的鱼的血液中的红细胞数量减少。我们的数据表明，即使是少量的交通排放污染物也会对鱼类有机体产生负面影响，对其健康和福祉造成各种干扰。
Studies of the acute and long-term toxicity of a heavy metal model mixture (HMMM) (based on real metal concentrations and proportion in soil near the Vilnius–Kaunas–Klaipėda highway on rainbow trout were performed using a set of biological parameters. The concentration of HMMM solution considered to be equal to 100% was for Cu 0.874; Zn 0.93; Pb 4.7; Ni 0.66; Cr 0.33; Mn 18 mg/l. The calculated 48-hour LC 50 value for rainbow trout juveniles comprised 129.7%, and the 96-hour LC 50 value 108.97% of HMMM solution. No significant changes were found in the weight of HMMM-exposed fish, while the liver weight of fish exposed to 21.79% of HMMM solution and the hepato-somatic index of fish exposed to 21.79 and 10.89% of HMMM solution differed significantly from control. Changes in blood parameters (erythrocyte count, haematocrit level, leukocyte count) revealed a specific HMMM toxicity to fish. Erythrocyte count decreased in the blood of fish exposed to all HMMM concentrations studied. Our data suggest that even low amounts of traffic emission pollutants can negatively affect the fish organism, causing various disturbances in its health and wellbeing.