Table 1 in Sub-lethal toxic effect of cadmium chloride (CdCl) on freshwater murrel Channa punctata (BLOCH)

Table 1: Morphological and behavioural changes in fishes when exposed to doses (5 ppm and 10 ppm) of CdCl 2 at different exposure time
Exposure TimeDoseColour ChangesOpercular activityBottom to surface movementResting at BottomMucous SecretionLoss of EquilibriumControlDay 1SL-I=*+=++SL-II**+=+*ControlDay 2SL-I+==*+=SL-II==**+*Day 3Control SL-I+*==+=SL-II=**=+*Day 4ControlSL-I+*=*+*SL-II=*==+*Day 5ControlSL-I+==**=SL-II=+*+=*Day 6ControlSL-I+*=+=*SL-II+=+==+Day 7ControlSL-I*=++==SL-II+=*+*+
SL-I = 5 ppm; SL-II = 10 ppm
“=” indicates no change or no increase/decrease
“+” indicates occurrence of changes or increase in change
“*” indicates occurrence of changes or decrease in change