Alterations on the Activities of Ion ATPases in the Gill and Muscle of Freshwater Mussel (Unio tigridis) Exposed to Copper

Ion ATPases in the tissues of aquatic animals are sensitive to metal exposures. Mussels filter-feeding and have a sedentary lifestyle that makes them good bio-indicator animals. Thus, present study was carried out investigate effects copper (0, 30, 90 µg/L) on activities Na-ATPase, Mg-ATPase, Ca-ATPase gill muscle freshwater mussels (Unio tigridis) different exposure durations 7, 14, 21 days). Feeding during experiments were done with cultured unicellular algae (Cholorella vulgaris), serving approximately 300,000 algae/ml. At end days period, no mussel mortality recorded. Total protein concentrations did not change significantly (P>0.05) any groups. Likewise, control ATPase alter periods. However, altered (P<0.05) following copper, especially at higher concentration. Although there significant increases decreases activity Mg-ATPase both tissues, Na-ATPase fluctuate as only The data demonstrated environmentally realistic able ion emphasized osmoregulatory stress which might face waters contaminated copper.