Effect of Copper and Silver Nanoparticles on Trunk Muscles in Rainbow Trout (Oncorhynchus mykiss, Walbaum, 1792)

Özet

Nanotechnology has been developing rapidly for the last 20 years. Silver and copper nanoparticles are commonly usedin various industries. Popularization of nanoparticles (NPs) led to increase of their concentration in the aquatic environment.Therefore, it is necessary to investigate the effects of nanoparticle contamination on fish growth.In this study, to define nanoparticles impact on juvenile freshwater fish survivalability and growth, rainbow trout(Oncorhynchus mykiss, Walbaum, 1792) were treated with silver (AgNPs) or copper (CuNPs) nanoparticles suspended inwater. During the experiment body weight and length were measured. After the treatment trunk muscle tissue was sampled forhistological and genetic analysis.The highest mortality and the lowest body weight was observed in juvenile rainbow trout treated CuNPs. Histologicalanalysis showed disruptions in muscle structure in both experimental groups. Differences between AgNPs and CuNPs wereobserved in expression of genes associated with the growth of muscle tissue. These results indicate that metallic nanoparticlescan affect growth and survivability of juvenile freshwater fish.