What is the biodiversity like in coral reefs?

Coral reefs are believed by many to have the highest biodiversity of any ecosystem on the planet—even more than a tropical rainforest. Occupying less than one percent of the ocean floor, coral reefs are home to more than 25% of all marine life.

How do coral reefs have high biodiversity?

Coral reefs have high levels of biodiversity because of their abundant microhabitats, high levels of nutrients, and high levels of sunlight and warm…

Are coral reefs biodiversity hotspot?

Not only are coral reefs biodiversity hotspots, they serve as part of the food chain, provide shelter for animals and are key indicators of overall ocean health. They attract billions of dollars in tourism dollars annually. Despite their importance, the health of coral reefs are threatened by: Overfishing.

What is the coral reef ecosystem like?

A coral reef is an underwater ecosystem characterized by reef-building corals. Reefs are formed of colonies of coral polyps held together by calcium carbonate. Most coral reefs are built from stony corals, whose polyps cluster in groups. … Most reefs grow best in warm, shallow, clear, sunny and agitated water.

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Why is biodiversity important in coral reef?

Biodiversity ensures that some life will continue to survive, even after major catastrophic events that wipe out many species. Biodiverse ecosystems also provide services, for example nursery habitat to edible fish species, which would be difficult and expensive to reproduce artificially.

Why is biodiversity important in the Great Barrier reef?

It provides habitat for nearly 9,000 species of marine life—and that’s just the (relatively) easy to count ones! The reef’s rich biodiversity helps it to maintain a stable and healthy coral reef system. Another way to look at biodiversity is from the perspective of the ‘jobs’ that organisms do within the system.

How much biodiversity is 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.

How does coral bleaching affect the biodiversity?

A devastating decline in coral cover caused a parallel decline in fish biodiversity, both in marine reserves and in areas open to fishing. Over 75% of reef fish species declined in abundance, and 50% declined to less than half of their original numbers. … Several rare coral-specialists became locally extinct.

What makes an ecosystem have high biodiversity?

High biodiversity means that a region supports a wide variety of species, while low biodiversity implies that an area supports only a few. The reasons for variances in biodiversity are complex, but they include both natural and man-made causes.

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What do you know about biodiversity?

Biodiversity is the variability among living organisms from all sources, including terrestrial, marine, and other aquatic ecosystems and the ecological complexes of which they are part; this includes diversity within species, between species, and of ecosystems.

Which of the following ecosystem has the most biodiversity?

Species richness is greatest in tropical ecosystems. Tropical rain forests on land and coral reefs in marine systems are among the most biologically diverse ecosystems on Earth and have become the focus of popular attention.

Why are coral reefs considered to be an ecosystem?

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.

What is the biodiversity of the Great Barrier Reef?

Its diversity includes but is not restricted to over 410 species of hard coral, over 1,620 species of fish, 2,000 species of sponge, 14 species of sea snake, six of the world’s seven species of marine turtle, at least 300 mollusc species, 630 species of echinoderm, and 500 species of marine alga.

Does the Great Barrier Reef have high biodiversity?

The Great Barrier Reef is internationally recognised for its outstanding biodiversity. The world heritage status of the Reef recognises its great diversity of species and habitats.