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| Description: Marine life zones Several factors are used to divide the ocean into distinct marine life zones Availability of light Photic (light) zone Upper part of ocean Sunlit Euphotic zone is near the surface where the light is strong Aphotic (without light) zone Deep ocean No sunlight Distance from shore Intertidal zone – area where land and ocean meet and overlap Neritic zone – seaward from the low tide line, the continental shelf out to the shelf break Oceanic zone – beyond the continental shelf Water depth Pelagic zone – open ocean of any depth Benthic zone – includes any sea-bottom surface Abyssal zone – a subdivision of the benthic zone Deep Extremely high water pressure Low temperatures No sunlight Sparse life Food sources include decaying particles from above, large fragments falling, and hydrothermal vents Picture Stats: Views: 2135 Filesize: 2.12MB Height: 912 Width: 1400 Source: https://biology-forums.com/index.php?action=gallery;sa=view;id=39685 |