The open water zone is beneath the littoral zone and is only as light can reach. The deep water zone is below the open water zone where no light reaches
deep zone
surface/ open ocean zone was warmer than the deep ocean. Sunlight can reach the open ocean so the temp. is warm.
The open ocean is split up into three parts: the intertidal zone (near the surface) the neritic zone (on the continental shelf) and the deep ocean zone. The deep-ocean zone's depth ranges from 200-9,000 meters. it is filled with a fishes bad romance from lady gaga
Yes.
Areas of the open ocean are often very deep. Primary productivity relies on sunlight, and sunlight only penetrates the first 10m or so (varies widely) of the ocean surface. Therefore, only this surface zone is photosynetically productive, which in turn fuels secondary (small crustaceans, zooplankton, etc.) and tertiary (fish) production.
It becomes a reef.
5 miles
Very much because the open ocean is basically the surface-ish area.
It becomes a reef.
100m deep to to 400m deep
open-ocean surface zone
This is very much a matter of the detail you wish to go into. Marine habitats can be divided into coastal and open ocean habitats. You might distinguish between warmer and colder surface waters, or the different levels of the deep sea such as benthic, demersal and pelagic. There are vast differences as habitats between a kelp bed and a coral reef.