Exposure to acidic and alkaline pHs results in an ionic imbalance. Cellular responses involved osmoregulation silver catfish exposed different (5.5, 7.5, 9.0) for 24 h were evaluated. The gills kidney collected measure Na+/K+-ATPase (NKA) H+-ATPase (V-ATPase) activities evaluate the expression of ion transporter-related genes: NKA (atp1a1), H+-ATPases (atp6v0a1b, atp6v0a2a, atp6v0a2b), Na+/H+ a...