Most marine life is found in coastal habitats, even though the shelf area occupies only seven percent of the total ocean area. Open ocean habitats are found in the deep ocean beyond the edge of the continental shelf.
What is the most important marine ecosystem?
The most important marine ecosystems for marine life are estuaries and coral reefs. These two marine ecosystems are important because the estuaries are breeding territories for many marine animals, because it is easy for young-lings to survive there, since there are no known predators that live in that region.
Which ocean ecosystem supports a greater variety of living organisms?
And the variety of species living on coral reefs is greater than almost anywhere else in the world. Scientists estimate that more than one million species of plants and animals are associated with coral reef ecosystems.
What area of the ocean has the greatest variety of life?
The epipelagic zone extends from the surface to 200m down. It receives plenty of sunlight and therefore contains the most biodiversity in the ocean.
Where is most life found in the ocean?
Most ocean life can be found in coastal habitats on the continental shelf, even if this area occupies only 7% of the total ocean area. Most of the open ocean habitats are found in the deep ocean beyond the edge of the continental shelf.
How does the marine environment support marine life?
The marine environment is a vital resource for life on Earth. Marine eco- systems perform a number of key environmental functions — they regulate the climate, prevent erosion, accumulate and distribute solar energy, absorb carbon dioxide, and maintain biological control.
What is considered marine life?
Marine life, sea life, or ocean life is the plants, animals, and other organisms that live in the salt water of the sea or ocean, or the brackish water of coastal estuaries. At a fundamental level, marine life affects the nature of the planet.
What ecosystems does the ocean support?
Although there is some disagreement, several types of marine ecosystems are largely agreed on: estuaries, salt marshes, mangrove forests, coral reefs, the open ocean, and the deep-sea ocean. An estuary is a coastal zone where oceans meets rivers.
What percent of marine life live in coral reefs?
Coral reefs are among the most biologically diverse and valuable ecosystems on Earth. An estimated 25 percent of all marine life, including over 4,000 species of fish, are dependent on coral reefs at some point in their life cycle.
Where is life in oceans most abundant and why?
The majority of biodiversity in the ocean in found in the photic zone where light permeates the water column making photosynthesis possible; however, even in the deep sea where little to no light is available, life has found a way.
How do coral reefs benefit marine life?
Benefits of coral reef ecosystems
Coral reefs protect coastlines from storms and erosion, provide jobs for local communities, and offer opportunities for recreation. They are also are a source of food and new medicines. Over half a billion people depend on reefs for food, income, and protection.
Why do oceans support different ecosystems?
There are many different ecosystems within the ocean depending on conditions such as the water temperature, the amount of sunlight that filters through the water, and the amount of nutrients. … Others are able to survive at a range of temperatures and can live in more places in the ocean.
Which ocean has the most coral reefs?
The Pacific Ocean has the most coral species.
Reef-building corals are restricted in their geographic distribution by factors such as the temperature and the salinity (salt content) of the water.
Where does 90% of the marine life live in oceans?
Sunlit Zone: This is the top layer, nearest the surface.
It is also called the euphotic zone. Here there is enough light penetrating the water to support photosynthesis. Because photosynthesis occurs here, more than 90 percent of all marine life lives in the sunlit zone.
What marine life lives in the continental rise?
Lobster, Dungeness crab, tuna, cod, halibut, sole and mackerel can be found. Permanent rock fixtures are home to anemones, sponges, clams, oysters, scallops, mussels and coral. Larger animals such as whales and sea turtles can be seen in continental shelf areas as they follow migration routes.
Where is marine life concentrated?
Sea life is concentrated in the sunlit waters near the surface, but most organic matter is far below, in deep waters and on the sea floor.