Abstract
Pilsbryoconcha exilis is freshwater mussel that derive its feed through filtering water. The mussels could filter such as phytoplankton and suspended material to get their feed. Its ability may be used in water remediation which is polluted by organic contaminant, such as at Cirata reservoir in West JavaTo undesrtand that freshwater mussels have ability to adapt in Cirata reservoir, a group of mussels kept in certain water column at some station observation. Then mussels growth rate was measured. Research result indicated that freshwater mussel could be adapted and grown in different water column as well as in their habitat (bottom sediment with muddy substrate). The mussels planted in Cirata reservoir have relation length and weight pattern which categorize as negative allo-metric (increasing of length is more dominant than weight). Observation result of mussels grow at Jangari Station was remarked by coefficient of growth (k=0.47) and infinity of length ( 8 =9.41); at Pasir Empul k=0.64 and L8 =9.62; at Jati Nenggang k=0.47 and L8 =9.41; also at mussels stock cages k=0.65 dan L8 =9.62. The result of this study concluded that mussels could be grown in Cirata reservoir of West Java.
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