Effect of Pb~(2+) on Activities of CAT in Tissues of Paralichthys olivaceus

The aim of this work was to study the effect of Pb2+(0.5mg·L-1)under long 10ds' exposure on activities of protecting enzyme CAT in tissues of Paralichthys olivaceus.The results showed that the activities of protecting enzyme CAT in tissues of Paralichthys olivaceus was inhabited on 8-10day at first,and inducted the following days;on 10th day,muscle and viscus of Paralichthys olivaceus were inducted at the highest level,but on 14th day,gill was inducted at the highest leve.Then after a few days' elimination,every tissue's activitie of protecting enzyme CAT was inhabited at the beginning's level.The changes of the activities of CAT can indicate the injured degree of Paralichthys olivaceus by Pb2+.