What does euphotic means?

Euphotic means "relating to the upper level of the ocean that receives enough sunlight for photosynthesis." The euphotic zone is the upper layer of the ocean that receives enough sunlight for photosynthesis to occur. This zone is typically between 0 and 100 meters deep, although it can vary depending on the clarity of the water. The euphotic zone is home to a wide variety of marine life, including phytoplankton, zooplankton, fish, and marine mammals.