the OC value of prawns exposed to 0.5 mg Cu L−1 was not significantly different from the OC value of control prawns both at 0 and at 12 ppt. The copper concentrations on gill tissues increased significantly in prawns exposed to copper both at 0 and at 12 ppt. After the copper exposure, swelling of lamellae, multiple hyperplasia and necrosis were observed in gill lamellae, resulting in abnormal gill tips. An obvious relation between the impairment of osmoregulation and the structural damage of gills are reported in this study.
Effect of copper on survival, osmoregulation, and gill structures of freshwater prawn (Macrobrachium rosenbergii, de Man) at different development stages. Available from: https://www.researchgate.net/publication/263762725_Effect_of_copper_on_survival_osmoregulation_and_gill_structures_of_freshwater_prawn_Macrobrachium_rosenbergii_de_Man_at_different_development_stages [accessed Jan 13, 2016].