Lobos María Gabriela, Sáez Claudio, Chavarría Alejandra, Sepúlveda Maritza, Díaz Patricia, Gaete Hernán
Instituto de Química y Bioquímica, Facultad de Ciencias, Universidad de Valparaíso, Av. Gran Bretaña, 1111, Playa Ancha, Valparaiso, Chile.
Centro de Investigación y Gestión de Recursos Naturales (CIGREN), Universidad de Valparaíso, Av. Gran Bretaña, 1111, Playa Ancha, Valparaiso, Chile.
Bull Environ Contam Toxicol. 2019 Mar;102(3):419-424. doi: 10.1007/s00128-019-02540-1. Epub 2019 Jan 11.
The aim of this study was to determine metal distribution in different tissues in early life stages of Atlantic salmon. The concentrations of the metals Al, Cd, Cu, Fe, Mn, Pb and Zn in liver, gills, muscle of fish and water from a salmon farm in the Region de los Lagos of southern Chile were determined. Results show that Cd and Pb had the lowest concentrations, while Zn the highest concentration, followed by Cu, Fe and Mn. Cu and Fe had the highest concentrations in liver, while Mn and Zn were the highest in gills. Cu and Fe in liver were higher in pre-smolts than in fingerlings. Cu had the highest bioaccumulation factor in pre-smolts, both in liver and gills. In conclusion the metals tend to bioaccumulate selectively in different tissues of Salmo salar. Liver is the most relevant for Cu and Fe, and liver and gills for Zn.
本研究的目的是确定大西洋鲑鱼幼体不同组织中的金属分布情况。测定了智利南部洛斯湖地区一个鲑鱼养殖场鱼类肝脏、鳃、肌肉以及水中铝、镉、铜、铁、锰、铅和锌的浓度。结果表明，镉和铅的浓度最低，而锌的浓度最高，其次是铜、铁和锰。肝脏中铜和铁的浓度最高，而鳃中锰和锌的浓度最高。前洄游期幼鱼肝脏中的铜和铁含量高于仔鱼。前洄游期幼鱼肝脏和鳃中铜的生物累积因子最高。总之，金属倾向于在大西洋鲑鱼的不同组织中选择性地生物累积。肝脏对于铜和铁最为重要，而肝脏和鳃对于锌最为重要。
