marine ecosystem

The marine ecosystem is in three zones the Abbysal, euphoric, and bathyal. The geography of the under sea are coral reefs deep canyons. Plankton live there and the sun light can be seen by some zones. in the euphotic zone there is sunlight in the bathyal zone there is some or none sunlight and in the abyssal zone there is none. Different animals live in different zones. Coral Reefs are made from fish skins. There are more than 21,000 fish in the sea.