Definitions
The variability among living organisms from all sources, including inter alia, terrestrial, marine and other aquatic ecosystems and the ecological complexes of which they are part; including diversity within species, between species and of ecosystems. (Source: CBD, Art. 2)
The variety of life in the ocean and seas (Source: UN)
Hierarchy
Broader: Concepts
Concept URI: http://www.informea.org/terms/marine-biodiversity