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铜离子对中国花鲈幼鱼的毒性研究
引用本文:朱友芳,洪万树,林金忠.铜离子对中国花鲈幼鱼的毒性研究[J].生态毒理学报,2011,6(3):331-336.
作者姓名:朱友芳  洪万树  林金忠
作者单位:1. 福建莆田市水产科学研究所,福建莆田,351100
2. 厦门大学海洋与环境学院,福建厦门,361005
基金项目:福建省莆田市科技局项目[2009N15(5)]
摘    要:为给中国花鲈(Lateolabrax maculatus)养殖提供污染生物学的理论数据,研究了中国花鲈幼鱼的铜离子中毒症状和半致死浓度(LC50);检测了幼鱼肝脏的谷胱甘肽(GSH)和丙二醛(MDA)含量及超氧化物歧化酶(SOD)、过氧化氢酶(CAT)、谷丙转氨酶(GPT)和谷草转氨酶(GOT)活力;分析了铜离子胁迫对...

关 键 词:中国花鲈  铜离子  半致死浓度  肝脏组织  酶活力  微核测定
收稿时间:2010/10/31 0:00:00
修稿时间:5/6/2011 12:00:00 AM

Toxicity of Cu2+ to Juvenile Perch Lateolabrax maculatus
Zhu Youfang,Hong Wanshu and Lin Jingzhong.Toxicity of Cu2+ to Juvenile Perch Lateolabrax maculatus[J].Asian Journal of Ecotoxicology,2011,6(3):331-336.
Authors:Zhu Youfang  Hong Wanshu and Lin Jingzhong
Institution:Putian Municipal Institute of Fishery Science, Putian Fujian 351100, China;College of Oceanography and Environmental Science, Xiamen University, Xiamen 361005, China;Putian Municipal Institute of Fishery Science, Putian Fujian 351100, China
Abstract:In order to provide data of pollution biology for the perch (Lateolabrax maculatus) culture, the toxic symptom and LC50 were studied in the juvenile perch exposed to Cu2+. The levels of GSH and MDA and activities of SOD, CAT, GOT and GPT were examined; The effects of Cu2+ stress on the total dyskaryosis and micronuclear rates of the juvenile erythrocytes were analyzed. The results showed that LC50 for juvenile exposed to Cu2+ for 24, 48, 72 and 96 h was 1.85, 1.66, 1.48 and 0.86 mg·L-1, respectively. The liver tissue of agonal individuals necrosed and a mass of blood sinuses occurred in the gill tissue. GSH, MDA, SOD, GPT and GOT in the liver were sensitive, while CAT was not sensitive to Cu2+ stress. Exposed to Cu2+ at concentration of 0.42 mg·L-1 for 96 h, total dyskaryosis and micronuclear rates of the juvenile erythrocytes in the treated groups were significantly higher (p<0.05) than that in the control. Cu2+ stress not only damaged the liver antioxidant system, liver and gill tissues, but also had definite genetic toxity to the juvenile perch.
Keywords:Lateolabrax maculatus  Cu2+  LC50  liver tissue  enzyme activity  micronuclear test
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