Photic zone
= Photic zone
{wiki=Photic_zone}
The photic zone, also known as the euphotic zone, refers to the upper layer of a body of water, typically the ocean or a large lake, where there is sufficient sunlight for photosynthesis to occur. This zone generally extends from the surface down to a depth of about 200 meters (approximately 656 feet), although the exact depth can vary depending on factors such as water clarity, latitude, and season.