Whole-body autoradiography: An efficient technique to study copper accumulation and body distribution in small organisms

► Copepods have been widely used to evaluate toxicity of compounds. ► In copepods there is not a detailed study on compounds accumulation and distribution. ► Autoradiography was an efficient technique to study accumulation in a small organism. ► Cu accumulated mostly on the ventral followed by dorsal, urossoma and internal region.