deep intertidal , neritic open-ocean surface.
There are four important oceanic zones where plants and mammals survive in the ocean. The four significant zones are open ocean zone, intertidal zone, neritic zone, and benthic zone. These zones comprise the extensive ecosystem on Earth.
The oceanic zone is typically described as the area of the sea lying beyond the continental rock but operationally is usually applied to a source where the water depths drop to lesser than 200 meters, offshore from the coast to the open shores. It is the area of open sea away from the edge of the continental shelf and accommodates 65% of the ocean’s entirely open water.