: of, relating to, or constituting the part of the oceanic zone into which enough light penetrates for photosynthesis.

What is another term for Epipelagic zone?

The epipelagic zone (or upper open ocean) is the part of the ocean where there is enough sunlight for algae to utilize photosynthesis (the process by which organisms use sunlight to convert carbon dioxide into food).

What does Euphotic mean in Greek?

: of, relating to, or constituting the upper layers of a body of water into which sufficient light penetrates to permit growth of green plants.