Marine Ecosystems: Open Ocean Marine Ecosystems

surface --> 200m deep

Zone that sunlight cannot penetrate

found along the ocean floor

Deepest region of the pelagic zone

water is very cold, except near hydrothermal vents

Organisms that need sunlight cannot live here

sunlight is able to penetrate this zone

tubeworms can be found living here

dolphins & jellyfish live in this zone

Currents can change the temperature of the water in this zone

Organisms that live here depend on food scraps to drift down from zones above