c550296d_e_Carpet_Shell___The_Fish_Site__3
[0] Bacterial (abnormal calcification; brown ring) [1] Vibrio tapetis [2] Bacteria [4] No curative measure. Prevention & site selection; monitoring clam transfer [3] 
Stunted growth; brownish coloured deposit along leading edge of mantle caused by organic material (conchiolin)
How to Farm Japanese Carpet Shell - The Fish Site
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