渔业科学进展Issue(5)：115-121,7.DOI:10.11758/yykxjz.20140517
Cu2+、Zn2+、Pb2+对七带石斑鱼（Epinephelus septemfasciatus）胚胎和初孵仔鱼的毒性效应
The toxic effects of Cu2+, Zn2+, and Pb2+on the embryos and larvae of Epinephelus septemfasciatus
孔祥迪 1陈超 2李炎璐 3贾瑞锦 4于欢欢 3翟介明 1刘江春2
作者信息
- 1. 上海海洋大学水产与生命学院，上海 201306
- 2. 农业部海洋渔业可持续发展重点实验室中国水产科学研究院黄海水产研究所 青岛 266071
- 3. 农业部海洋渔业可持续发展重点实验室中国水产科学研究院黄海水产研究所 青岛 266071
- 4. 上海海洋大学水产与生命学院，上海 201306
- 折叠
摘要
Abstract
The current study investigated the toxic effects of Cu2+, Zn2+, and Pb2+on the embryos and larvae of Epinephelus septemfasciatus. The results indicated that as the three heavy metals ion levels increased the fertilized egg hatching speed and the hatching rate gradually declined while the malformation rate gradually increased. The malformation of the embryos and larvae included bended tail sprouts, incomplete hatching, the “L”, “S” and “V”-shaped vertebrate of newly-hatched larvae and comma-shaped un-expanded tail deformity. Based on the comprehensive hatching rate, hatching rate and malformation rate, the toxicity to the embryonic development of these heavy metal ions were:Cu2+>Zn2+>Pb2+. The newly-hatched larvae toxicity test cycle was 96 h. The survival rate of the larvae gradually reduced with the increased time. The increased concentrations of these heavy metal ions dramatically decreased the survival rate while increased the number of deformity. Based on the time period of the half lethal concentration (LC50) and the safety concentration, the toxicity of three heavy metal ions on the newly-hatched larvae were:Cu2+>Pb2+>Zn2+. These results may contribute to the formulation of new fishery water quality standard and parameters of water environment monitoring and provide important scientific basis for E. septemfasciatus breeding of heavy metal monitoring and management.关键词
七带石斑鱼/金属离子/胚胎/仔鱼/毒性效应Key words
Epinephelus septemfasciatus/Metal ions/Embryos/Larvae/Toxic effects分类
农业科技引用本文复制引用
孔祥迪,陈超,李炎璐,贾瑞锦,于欢欢,翟介明,刘江春..Cu2+、Zn2+、Pb2+对七带石斑鱼（Epinephelus septemfasciatus）胚胎和初孵仔鱼的毒性效应[J].渔业科学进展,2014,(5):115-121,7.
