Abstract
The concentration of coelomic fluid glucose and tissue ascorbic acid and glycogen were monitored in Neanthes virens during exposure to sublethal concentrations of cadmium. The responses of N. virens to cadmium were both time and dose-dependent and followed a pattern which is consistent with the general adaptation syndrome. After 3 days of exposure to 10 mg/l Cd, a significant hyperglycemic response was observed which persisted for over a month until the glycogen reserves were depleted. At the termination of the chronic (2-mth) exposure, the tissue ascorbic acid concentration of the Cd-exposed animals was significantly higher than the controls. Glycogen appears to be a limiting constituent during chronic pollutant stress for this polychaete whereas ascorbic acid is not.
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