These large ships have libraries, hospitals, schools, repair (fixing) shops and other things that are needed for fishermen and their families. Nations like Russia and Japan have lots of huge ships that go to some of the world's best fishing areas for many months. The skies above the open ocean are home to large sea birds, such as the albatross. These include many types of fish, such as tuna, swordfish and marine mammals like dolphins and whales. In deeper water, marine animals of many different shapes and sizes swim through the ocean. In shallow water, you may find lobsters and crabs. Almost all animals in the ocean depend directly or indirectly on these plants. Small plant organisms that live near the surface and use sunlight to produce food are called phytoplankton. Different ocean organisms live near the surface, in shallow waters, and in deep waters. They are affected by sunlight, temperature, water pressure, and water movement. Organisms that live in oceans can live in salt water. Ocean and beach shore (Unsplash) Plants and animals We then see the reflected light as the color of water. However, the main cause of the blue or blue/green color of the oceans is that water absorbs the red part of the incoming light, and reflects the green and blue part of the light. Water has a very slight blue color that can only be seen when there is a lot of water. They do not require energy from the sun to survive, because they use chemicals from deep inside the Earth.Īlthough many people believe that the oceans are blue because the water reflects the blue sky, this is actually not true. Some very unusual organisms live in this part of the ocean. The deep ocean is characterized by cold temperatures, high pressure, and complete darkness. The Southern Ocean is also called the Antarctic Ocean, because it covers the area around Antarctica. Many types of animals live in oceans, such as carp, crabs, starfish, sharks, and whales.ĭifferent water movements separate the Southern Ocean from the Atlantic, Pacific and Indian Oceans. There are five main oceans: the Pacific Ocean, the Atlantic Ocean, the Indian Ocean, the Southern Ocean, and the Arctic Ocean. Oceans (or marine biomes) cover 72% of Earth. Oceans are very big and they join smaller seas together. A map showing the five main oceans of the world.Īn ocean is a large area of water between continents.
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