what are unique environment of ocean bottom ecosystem
Here, we can see different types of starfish, coral reefs and fishes in the Great Barrier Reef. Marine ecosystems are among the largest of Earth's aquatic ecosystems. They include oceans, salt marshes, intertidal zones, estuaries, lagoons, mangroves, coral reefs, the deep sea, and the sea floor.They can be contrasted with freshwater ecosystems, which have a lower salt content. Marine waters cover two-thirds of the surface of the Earth.Such places are considered ecosystems because the plant life supports the animal life and vice versa.arine waters cover two-thirds of the surface of the Earth. Such places are considered ecosystems because the plant life supports the animal life and vice versa.