Layers of the ocean
The ocean, covering over 70% of Earth’s surface, is an ecosystem, a community of living things together with the nonliving things of their surroundings. It's divided into five zones based on factors like depth, light , temperature, and pressure. Each zone has its own animals, with species specially adapted to their particular environments. These zones are:
- Epipelagic (Sunlight Zone)
- Mesopelagic (Twilight Zone)
- Bathypelagic (Midnight Zone)
- Abyssopelagic (The Abyss)
- Hadalpelagic (Hadal Zone)
Layers Of The Ocean Media
World map of the five-ocean model with approximate boundaries
Bathymetry of the ocean floor showing the continental shelves and oceanic plateaus (red), the mid-ocean ridges (yellow-green) and the abyssal plains (blue to purple) 
Lighthouse at the coast of Ocean County, New Jersey, U.S., facing the Atlantic Ocean at sunrise
Ocean chlorophyll concentration is a proxy for phytoplankton biomass. In this map, blue colors represent lower chlorophyll and reds represent higher chlorophyll. Satellite-measured chlorophyll is estimated based on ocean color by how green the color of the water appears from space.
The ocean is a major driver of Earth's water cycle.
Movement of water as waves pass
High tide and low tide in the Bay of Fundy, Canada
The major oceanic zones, based on depth and biophysical conditions
This diagram offers a basic illustration of the depth at which different colors of light penetrate ocean waters.
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