Copper (1x10 /xmoles/g wet weight) 
Figure 4. Changes in the quantities of copper in the high 
molecular-weight (HMW) and low-molecular-weight. (L M W) Protein 
fractions in the supernatant fluid from homogenized digesti 
glands from 25 mussels that had been exposed to 25 pq Cu/t 
114 
