铜、锌、铬金属离子对黄金鲫的急性毒性研究  

Acute Toxicity Experiment of Heavy Metal Cu^(2+),Zn^(2+),Cr^(2+) on Carassius auratus

作　　者：程民杰[1] 黄亚冬 孙学亮[1] 万刚涛 孙朦朦[1] 邢克智[1] 陈成勋[1] 王庆奎[1] 郭永军[1] 于宏[1] 

机构地区：[1]天津农学院水产学院天津市水产生态与养殖重点实验室,天津300384 [2]天津海升水产养殖有限公司,天津300272

出　　处：《天津农学院学报》2014年第4期1-4,共4页Journal of Tianjin Agricultural University

基　　金：国家星火计划项目"黄金鲫工厂化育苗及健康养殖技术示范"(2010GA610007);天津市农业科技成果转化与推广项目"黄金鲫良种繁育及健康养殖技术推广"(201001010);天津市科技成果转化及产业化推进计划项目"黄金鲫良种繁育及健康养殖技术示范"(09ZHXHNC0510)

摘　　要：为研究黄金鲫对铜(Cu2+)、锌(Zn2+)和铬(Cr6+)3种重金属离子的耐受性,试验分别设定不同浓度梯度的重金属离子处理组,进行急性毒性试验。结果表明,Cu2+半致死浓度(LC50)在24、48、72 h分别为2.63、0.80、0.73 mg/L,安全浓度(SC)为0.022 mg/L。Zn2+和Cr6+在24、48、72、96 h的LC50分别为72.74、59.75、58.05、57.80和519.05、391.05、375.53、347.03 mg/L,二者的SC依次为12.040和66.660 mg/L。3种重金属对黄金鲫的毒性大小依次为Cu2+>Zn2+>Cr6+。In order to study the tolerance of Carassius auratus for heavy metal（Cu2 ＋,Zn2 ＋ and Cr6 ＋）,acute toxicity experiments of heavy metal groups with different concentration gradients were designed.The results show that the LC50 of Cu2＋solution at 24,48,72 h were 2.63,0.80,0.73 mg/L,respectively,while SC was 0.022 mg/L.The LC50 of Zn2 ＋ and Cr6 ＋ at 24,48,72 and 96 h were 72.74,59.75,58.05,57.80 and 519.05,391.05,375.53,347.03 mg/L,respectively,while SC of Zn2 ＋ and Cr6 ＋ were 12.040 and 66.660 mg/L,respectively.The toxicity of the three heavy metal for Carassius auratus was Cu2＋Zn2＋Cr6＋.

关 键 词：铜 锌 铬 黄金鲫 急性毒性 

分 类 号：S941.91[农业科学—水产养殖]