Subchronic effects of environment-like cadmium levels on the bivalve Anodonta anatina (Linnaeus 1758): II. Effects on energy reserves in relation to calcium metabolism
2011
Ngo, Huong Thi Thuy | Gerstmann, Silke | Frank, Hartmut
Glucose, glycogen and protein levels in freshwater mussels (Anodonta anatina) exposed to algae- and water-borne Cd for 35 days and allowed to depurate for posterior 120 days were monitored. In body fluids, glucose was increased while protein levels were decreased. Glycogen stores in the tissues generally declined during exposure and remained low until the end of depuration, associated with decreased dry weight and condition index. Tissue protein concentrations remained stable, but subcellular fractions exhibited some alterations. Negative correlations of glycogen to newly incorporated Cd and total Cd were observed in the mantle and digestive gland. Glucose concentrations in the body fluids and glycogen in the mantle and digestive gland were strongly correlated to Ca content.
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