A layer of the oceanic zone lying below the "mesopelagic" zone and above the "abyssopelagic" zone, at depths generally between 1,000 and 4,000 meters (3,280 to 13,120 feet): The bathypelagic zone receives no sunlight and water pressure is considerable. The abundance and diversity of marine life decreases with depth through the bathypelagic zone and the lower zones.