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.
Definition: Salts and esters of phosphoric and oligophosphoric acids and their chalcogen analogues. In inorganic chemistry, the term is also used to describe anionic coordination entities with phosphorus as central atom.
