Applied Aquatic Ecosystem Concepts. University of Guelph Custom Coursepack.
All bivalves are filter-feeding organisms.
The Asian clam is a warm water species and cannot survive waters that freeze. Fingernail clams are closely related to the Asian clams. There are four genera, but only three, Sphaerium , Musculium and Pisidium , are common. Most species of Musculium can be found in temporary aquatic habitats. Most other fingernail clams require clean water with high oxygen tensions.