Behavioral Responses of Zebrafish(Danio rerio)Exposed to Cadmium and Deltamethrin by Using a Real-Time Monitoring System

摘要：

　　This study investigated and compared the behavioral responses of zebrafish (Danio rerio) under sudden stress from sublethal exposure to delta methrin (C22H19Br2NO3; 15 × 10-3 mg/L) and cadmium (CdCl2; 3.5 mg/L).The behavioral endpoints, including swimming speed, depth, turning frequency, and distance, were observed by a computer-imaging system for 3 h.Results showed that the first response to toxicants might be avoidance via increased swimming activity, followed by a second response of changed distnibution in the test chamber under continued exposure.Swimming speed increased immediately after exposed to two pollutants in accordance with the stepwise stress model (SSM).However, the distriboution in the test chamber started to change 20 min later.Fish exposed to cadmium stayed near the bottom, whereas fish exposed to deltamethrin surfaced more frequently than unexposed fish.In addition, the duration of increased speed and turning frequency under deltamethrin exposure was much longer than with cadmium exposure.Such clear differences might be attribouted to the different pathways and mechanisms of toxic biological effects.R is proved that these different responses of zebrafish do exist under different environ ment stresses, and this will increase the significance and usefulness of fish behavioral indicators for the detection of pollutants in water.

关键词： Real time bio monitoring Zebrafish Cadmium Deltamethrin Behavioral response

作者: Yi Huang Jinsong Zhang Xiaobo Han Alice K Y Chan Tinglin Huang

作者单位: Xian University of Architecture and Technology,No.13 Yanta Road,Xian,China Xian University of Architecture and Technology,No.13 Yanta Road,Xian,China;Shenzhen Water (Group) Shenzhen Water (Group) Co.,Ltd.,No.l019 Shennan Middle Road,Shenzhen,China;Research Center for Eco-E Department of Biology & Chemistry,City University of Hong Kong,83 Tat Chee Ave.,Kowloon,Hong Kong SA

会议类型: 国际会议

会议名称: International Conference on Recent Advances in Pollution Control and Resource Recovery for the Livestock Farming Industry(RAPCP 2013)2013年畜禽养殖污染防治国际会议

会议地点: 浙江嘉兴

会议语种:英文

页码: 45-51

在线出版日期: 2013-10-24（万方平台首次上网日期，不代表论文的发表时间）