How are ecosystem in the deep sea different from ecosystem in shallow ocean water?

Shallow water – Some tiny fish and coral only live in the shallow waters close to land. While Deep water – Big and even gigantic creatures can live deep in the waters of the oceans. Some of the strangest creatures in the world live right at the bottom of the sea.  Ocean ecosystems are relatively contained, although they, like freshwater ecosystems, also include certain birds that hunt for fish and insects close to the ocean’s surface. There are different sorts of ocean ecosystems.