Research Article
Antagonistic Effects of Sublethal Concentrations of Certain Mixtures of Metal Oxide Nanoparticles and the Bulk (Al2O3, CuO, and SiO2) on Gill Histology in Clarias gariepinus
Figure 5
(a) Histological section of gill exposed to nano-SiO/CuO (1 : 1) showing primary gill lamella (PGL) shortened secondary gill lamella (SSGL), blood vessel, oedema of primary lamella, and eroded epithelium (H&E stains, ×100). (b) Histological section of gill exposed to nano-SiO/Al2O3 (1 : 1) showing primary gill lamella (PGL), eroded secondary gill lamella (ESGL), and hypertrophy (HPT) (H&E stains, ×100).
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