The ocean water column is made up of five zones: the sunlight zone (epipelagic), the twilight zone (mesopelagic), the midnight zone (bathypelagic), the abyssal zone (abyssopelagic) and the hadal zone (trenches).
What are the five ocean zones?
The ocean water column is made up of five zones: the sunlight zone (epipelagic), the twilight zone (mesopelagic), the midnight zone (bathypelagic), the abyssal zone (abyssopelagic), and the hadal zone (trenches).
Oceanus magazine
[ ALL ]In-depth research on Ocean zones
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WHOI News Room
[ ALL ]Press releases
June 3, 2026
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January 27, 2026
New WHOI study cautions that deep-sea fishing could undermine valuable tuna fisheries
September 18, 2025