English: sublittoral biogenic reef on sediment
Welsh: riff biogenig isforlannol ar waddod
Subject: Amgylchedd
Welsh definition: Sediment habitats in the sublittoral near shore zone (i.e. covering the infralittoral and circalittoral zones), typically extending from the extreme lower shore down to the edge of the bathyal zone (200m). Sublittoral biogenic reef communities. This complex includes polychaete reefs, bivalve reefs (e.g. mussel beds) and cold water coral reefs.
Notes: Term o system ddosbarthu EUNIS o gynefinoedd morol. SS.SBR. yw’r Cod Cynefin. Mae’r Cyd-bwyllgor Cadwraeth Natur yn defnyddio system arall o gategoreiddio cynefinoedd morol, yn seiliedig ar system ddosbarthu EUNIS. Yn y drefn honno “subtidal biogenic reef” yw’r term cyfatebol.