Azime KÜÇÜKGÜL
In this study, the effects of several stressing factors were investigated on cortisol, glucose andhaemoglobin in common carp (Cyprinus carpio Linnaeus, 1758) blood. The group of fish were kept at different water temperature ranging from 24 to 33oC and an increase in water temperature up to 27oC resulted in increases of haemoglobin and cortisol with the amount of glucose in carp's blood plasma decreasing (P 0.05). Other group of fish was subected to catching net (with keeping it out of the water included). The fish were caught with the net and taken it outof the water-each time for 50s (12-36 times during 15-45 min of the experiment time). After the practice, proved the cortisol, glucose and haemoglobin levels were a decline rates in 2-3 hours whereas the highest rates observed in 1 hour.
