This suggests that cercariae released into snail tissue containing cadmium are possibly reacting to the unfavourable environment by encysting before emergence into the water occurs.
However, with decreasing temperature cadmium and zinc induced similar effects at many concentrations and water hardnesses.
Inhibition of egg hatching by short-term exposure to high concentrations of cadmium and zinc has also been shown in the present study.
These changes may be associated with the accumulation of cadmium by developing cercariae within the exposed host which subsequently inhibited the glycogen utilization.
Results were obtained for arsenic, cadmium, chromium, cobalt, copper, lead, nickel, and zinc.
Cadmium is a common constituent of industrial and mining effluent.
The heavy metals in the ash included arsenic, cadmium, chromium, manganese, nickel, cobalt, copper, zinc, and lead.
Both are equally selective for barium and calcium, have a relatively low sensitivity to external cadmium, and a negative activation range.
