The Asian clam is an invasive species confirmed in Vermont waters in 2016 in Lake Bomoseen. This is currently the only place they have been found in Vermont, but they have invaded waters throughout the United States. Asian clams are native to temperate and tropical regions throughout much of Asia and Africa, as well as the eastern Mediterranean and parts of Australia Invasive freshwater bivalves like the Asian clam use resources needed by native species and can increase algae blooms. Asian clams form dense populations very quickly, clogging water intake pipes and irrigation canals.

Key Characteristics


The Asian Clam prefers good water quality with moderate currents, sand or gravel substrate, and high oxygen levels, but is found in an extremely wide variety of habitat. It has little tolerance for low oxygen conditions and pollution.

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