Dwarf wedgemussel (Alasmidonta heterodon)
Dwarf wedgemussels are filter feeders. They filter plankton. These mussels prefer streams with slow to moderate current and bottoms that are silt-free. The females carry eggs in their gills where they are fertilized after males release sperm into the water. The larvae or glochidia are released from the gills but must attach to a fish host to survive. The glochidia drop off the fish once they have grown into juvenile mussels. Once on the bottom, they grow into adults.
North Carolina to Canada. In this region, they are found in CT, MD, NH, NY, VA and VT
Dwarf wedgemussel recovery plan (pdf - 2.20MB)
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