Why Are Mussel Shells Valuable?

The mussel's shells provide an important substrate for algae and insect larvae to attach to. ... Mussels are also an important food source for several different kinds of terrestrial and aquatic animals, including muskrats and raccoons, as well several species of fish.

Why do people sell mussel shells?

Pearl industry Today freshwater mussel shell is used to make pearls overseas. ... When the pearl is big enough, it is collected and sold to make jewelry. The other reasons may be a little complex. Freshwater mussels may be disappearing because their ecosystem or environment (where they live) is changing.

Are mussel shells good for anything?

Yes, mussel shells can be composted and used in the garden. ... The shells are also a valuable source of calcium carbonate, the key ingredient in garden lime. The shells of mussels, clams and oysters are rich in calcium, another essential element for plant health, that raises the pH of soils in areas that are too acidic.