Mytilus trossulus filter 2-3 liters of water per hour while they feed and respire. Just one 40′ x 40′ stocked mussel raft can filter 3 million liters of water per hour. By filtering water, mussels positively effects nutrient and sediment removal. Some Nutrients are made into the body tissues of mussels that we later eat, the rest is excreted as waste which ends up on the seafloor, helping stimulate the rate of decomposition within the ecosystem. This means bivalves such as mussels have a role in controlling boom and bust cycles of seasonal phytoplankton blooms. Shellfish help stabilize marine environments leading to higher overall productivity and diversity of species.