[1] This species occurs in salinity range of 3 ppt in August to 16 ppt in May and the dissolved oxygen content ranged from a high of 6.5 ml/L during August–November to a low of 2.83 ml/L in February.

The black clam attains sexual maturity at a length of 11 to 15 mm (0.43 to 0.59 in).

It spawns twice a year, from May to August, and from January to late March.

The optimum salinity for spawning is about 10–12 ppt.

Other recorded threats are closure of the Thaneermukham Barrage near Vambanad Lake, frequent dredging, pollution from effluents from shrimp processing plants/factories, ecotourism and Water Hyacinth weed.