has part composed primarily of oceanic mussel bed Bathymodiolus-dominated oceanic mussel bed An oceanic mussel bed which has mussel communities dominated by members of the genus Bathymodiolus. envoCmecs This class extends the Coastal and Marine Ecological Classification Standard (CMECS). In ENVO, we may adapt the definition for consistency, but the semantics (meaning) of the term should be unaffected. Please consult the CMECS catalogue (https://cmecscatalog.org/) for authoritative and semantically unconstrained definitions. If individual mussels are present in densities sufficient to construct biogenic substrate, please use the mussel reef class. envoMarine Bathymodiolus ecological community