A marine habitat
inside the pelagic zone
, but not quite part of the oceanic zone
. Commonly used as a synonym for the neritic zone
, it could be more accurately described as the area extending from just below the lowest low tide
to just before the continental break
-- that is, the break between the continental shelf
and the continental slope
; generally about 200 meters down.
The subtidal zone is a fairly diverse soft-bottom habitat, home to a wide range of benthic, epibenthic, infaunal, semi-infaunal, and nekton organisms.