photic zone: Quick Facts

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Diagram showing ocean zonation by depth and region, with labeled layers: littoral, sublittoral, bathyal, abyssal, and hadal along the seafloor, and epipelagic, mesopelagic, bathypelagic, and abyssalpelagic in open water. The littoral zone is at the high-tide mark. Vertical scale marks photic and aphotic zones from surface to 10,000 meters.

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disphotic zone euphotic zone epipelagic zone Marine ecosystem abyssal zone Today in History—October 20: The Monterey Bay Aquarium Opens bathyal zone bottom water littoral zone halocline deep-scattering layer neritic zone

Chutes d'Ekom - a waterfall on the Nkam river in the rainforest near Melong, in the western highlands of Cameroon in Africa.

Ecosystems