الفهرس 
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Abstract
The results of this study showed that high temperature, ammonia and salinity led to
stress that affected and changed respiratory, acid base, haematological, biochemical
parameters, expression of some genes and histological features to adapt the environmental
changes to overcome oxidative stress. However, some fish could not tolerate these
stressors and died, consequently the growth, reproduction, immunity, flesh quality and
production of fish will be affected and this in turn leads to economic loses of aquaculture.
So, these results give useful information for improvement of the management practices in
aquaculture and monitoring changes in the health status of fish.