Abstract
Freshwater sponges, one of the important invertebrate fauna of aquatic ecosystem, are understudied compared to their marine forms. The infrequent records of their occurrence indicate the paucity of work on them. The study presents diversity of sponges in a lake of Kalyan, Maharashtra (India). Four species of sponges belonging to family Spongillidae were found in Sapad lake. A significant decline in sponge abundance was noted after the lake restoration. The sponge population and species number were found reduced post dredging activity. This study showed the deteriorating effect of human interference on freshwater sponges, and would thus, prove beneficial for lake management plans in future.
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