They serve as an important aspect of the ecological system of the water in which they occupy. However, the number of mussels have been declining such that many are now considered as endangered species. There are a few reasons for the decline in population, including domination by a single species of mussels called the zebra mussel. Conservation has begun on mussels because of their strong environmental influence. The two groups interested in mussels involve parties that use the lakes for recreation and consider mussels as a threat to their gaming as well as ecologists that understand the domination of zebra mussels and attempt to protect the native mussels from the zebra mussels.
Mussels are in a group of invertebrate animals called mollusks.
Freshwater mussels are also referred to as clams, naiads, and unionids. Mussels spend its life anchored in rivers or lake bottom sediments. The vast majority of them are found in streams. Their movement is through either muscular feet or powerful flood currents. Mussels continuously pump water through their bodies.