Macrostomum balticum is a species of flatworms in the family Macrostomidae. It is associated with freshwater habitat. It is a hermaphrodite. Macrostomum balticum relies on ciliary gliding to move around.
Definition: An aquatic biome that comprises systems of open-ocean and unprotected coastal habitats, characterized by exposure to wave action, tidal fluctuation, and ocean currents as well as systems that largely resemble these. Water in the marine biome is generally within the salinity range of seawater: 30 to 38 ppt.