Zones of the Open Ocean

Oceanographers divide the ocean into three broad zones. Together, they could hide 20 Washington Monuments stacked on top of each other. Each zone has a different mix of species adapted to its light levels, pressures, and temperatures. About three-fourths of the ocean is deep, permanently dark, and cold. Learn more about these different zones.

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Submitted by Lulu (not verified) on

This diagram could definitely use more information. Please add more info, thank you.

Submitted by joxemar (not verified) on


Submitted by Alex (not verified) on

really helpful

Submitted by ed (not verified) on

crazy stuff

Submitted by J (not verified) on

What location was the oil spill in the Gulf of Mexico? Was it near Sigsbee Deep?

Submitted by yo mom (not verified) on

very ggpd

Submitted by $$$$$$ (not verified) on

this is not what i am looking for add more information.please be more specific.thank u ;)

Submitted by Anonymous (not verified) on

That fish that in 3500m deep in the sea looks like the one that i seen in one piece anime

Submitted by Anonymous (not verified) on

It was creapy

Submitted by Anonymous (not verified) on

That is so amazing that it takes that many Washinton Monuments to make up the ocean

Submitted by The Ocean Portal Team on

Thanks for your comment.

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The Ocean Portal Team

Submitted by Anonymous (not verified) on

1. It would be helpful if you could click on different options such as vertical zonation by depth or by amount of light and present the appropriate terminology for that type of zonation: epipelagic, mesopelagic, etc. vs photic, twilight and aphotic zone.
2. When the only organisms shown are animals, students don't appreciate the diversity of the ocean or the importance of the producers to the ecosystems. Please include phytoplankton, kelp, etc.
3. There could be an active link on the photos of the organisms identifying the creatures or providing more information about the dominant organisms of the zone.

Submitted by Anonymous (not verified) on

Two things- Maybe include a small thumbnail version of the zone picture to one side- perhaps with a box showing where you are on the picture. Perception of depth can be lost to scrolling if you can't see the entire picture. Secondly- more pictures of ocean animals are needed. It would be nice to include those depths to which people have traveled (by scuba, sub, and ROV) as well! Thanks!