In vivo changes in the activity of (Gill, Brain and RBC)‎ atpases from Oreochromis mossambicus as a response of environmental ionic changes

الملخص EN

The study concerns with the effects of different ionic strength concentrations of NaCl in fish environment on the in vivo activity of Na +, K + - ATPase from the gills, brain and red blood cells of tilipia, Oreochromis mossambicus.

The most important changes in Na+, K + - ATPase activity during exposure to the NaCl concentrations were represented by an increase in the brain and a decrease in gills and RBC Na+, K + - ATPases activity at higher concentrations.

Total protein concentrations of gills and brain homogenates were decreased but increased in RBCs homogenates at higher ionic strengths.