How important are corals in the marine ecosystem?

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 are coral reefs important to marine lives?

Coral reefs provide an important ecosystem for life underwater, protect coastal areas by reducing the power of waves hitting the coast, and provide a crucial source of income for millions of people. Coral reefs teem with diverse life. Thousands of species can be found living on one reef.

Why are coral ecosystems important for the environment?

Functions of Coral Reefs: Coral reefs are important for many different reasons aside from supposedly containing the most diverse ecosystems on the planet. They: protect coastlines from the damaging effects of wave action and tropical storms. provide habitats and shelter for many marine organisms.

What would happen if there were no corals?

Without them, shorelines would be vulnerable to erosion and rising sea levels would push coast-dwelling communities out of their homes. Nearly 200 million people rely on coral reefs to safeguard them from storms.

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What is the importance of coral reefs essay?

(i) Corals remove and recycle carbon dioxide. Excessive amounts of this gas contribute to global warming. (ii) Reefs shelter land from harsh ocean storms and floods by breaking the force of the waves, thereby allowing mangroves and seagrass to flourish. (iii) Reefs provide resources for fisheries.

Why are coral reefs important to biodiversity?

Coral reefs support more species per unit area than any other marine environment, including about 4,000 species of fish, 800 species of hard corals and hundreds of other species. Scientists estimate that there may be millions of undiscovered species of organisms living in and around reefs.

What are the economic importance of coral reefs?

Healthy coral reefs contribute to fishing and tourism, providing millions of jobs and contributing to economies all over the world. Scientists develop important drugs from coral reef organisms as treatments for cancer, arthritis, and viruses.

How does ocean warming affect coral reefs?

A warming ocean: causes thermal stress that contributes to coral bleaching and infectious disease. Sea level rise: may lead to increases in sedimentation for reefs located near land-based sources of sediment. Sedimentation runoff can lead to the smothering of coral.

How does coral bleaching affect marine life?

Bleaching leaves corals vulnerable to disease, stunts their growth, affects their reproduction, and can impact other species that depend on the coral communities. Severe bleaching kills them. The average temperature of tropical oceans has increased by 0.1˚ C over the past century.

Why are coral reefs important and why are they dying?

Since the beginning of the 20th century, sea surface temperatures have increased, and they continue to rise. Not able to cope with the unusually warm temperatures, corals reefs have experienced mass bleaching events at increasingly short intervals. Coral bleaching is a stress response.

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What happens to coral when it dies?

Once coral reefs disappear, we will lose everything they provide, including marine biodiversity, productive fisheries and potential source of medicines. “Coral reefs are some of the most diverse and valuable ecosystems on Earth,” Miller says.

Why is coral reef destruction a problem?

Pollution, overfishing, destructive fishing practices using dynamite or cyanide, collecting live corals for the aquarium market, mining coral for building materials, and a warming climate are some of the many ways that people damage reefs all around the world every day.

What is the importance of coral reefs PDF?

Coral reefs protect the shoreline and reduce flooding. Very importantly, coral reefs protect the shoreline, providing a physical barrier – a wall – against tidal surges, extreme weather events, ocean currents, tides and winds. In doing so, they prevent coastal erosion, flooding and loss of infrastructure.