Coral Reefs

1. What makes coral reefs so important?

Answer:

Coral reefs offer possibilities for recreation, serve as a barrier against erosion and storm damage, and support local economies. They are also a source of fresh medications and food. More than 500 million people rely on reefs for safety, income, and food.

2. What defines a Coral Reef?

Answer:

Coral reefs are the massive seawater structures formed by the accumulation of tiny-bodied organisms known as coral.

3. Where are Coral Reefs found in India?

Answer:

The Gulf of Mannar, the Gulf of Kutch, the Andaman and Nicobar Islands, and the Lakshadweep Islands are the only places in India with significant reef formations. The other reefs are all fringing reefs, whereas the Lakshadweep reefs are atolls. The country’s central west coast has patchy coral in the intertidal zones.

4. What are the three main types of coral reefs?

Answer:

The three main types of coral reefs are Fringing, Barrier, and Atoll.



Coral Reefs: Types, Importance and Threats

Coral reef is an oceanic ecosystem that is made up of corals that construct reefs. Reefs are constructed by coral polyp colonies that are connected by calcium carbonate. Most coral reefs are composed of stony corals, whose polyps cluster. Coral belongs to the animal group Cnidaria’s class Anthozoa, which includes sea anemones and jellyfish. The majority of reefs thrive in warm, shallow, clear, bright, and turbulent water. In this article, we will look into the meaning, formation, types, and importance of Coral Reefs.

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What are Coral Reefs?

Coral reefs are massive seawater structures formed by the accumulation of tiny-bodied organisms known as coral. Corals are living animals that have a symbiotic relationship with microscopic algae called ‘Zooxanthellae’. Each coral is referred to as a Polyp and each polyp secretes lime, whose agglomeration results in the formation of coral reefs over a period of time. Coral reefs are of three types i.e., fringing, barrier, and atoll reefs, and each reef has a difference in its formation and distribution. Coral reefs are much more than just a beautiful oceanic ecosystem, they provide an important support system to underwater life, protect coastal areas, and provide a source of income for millions of people along with food and medicine....

Formation of Coral Reefs

The majority of coral reefs were created following the Last Glacial Period when rising sea levels from melting ice flooded continental shelves. The majority of coral reefs are under 10,000 years old. The reefs expanded higher as settlements grew, keeping pace with the sea level rise. Reefs that climbed too slowly could drown if there wasn’t enough light. Coral reefs can also be found in the deep ocean, next to oceanic islands and atolls, distant from continental shelves. Most of these islands were formed by volcanic activity. Others stem from tectonic plate movements that raised the deep ocean floor....

Types of Coral Reefs

Based on their shape, nature, and manner of occurrence, coral reefs are divided into three groups:...

Importance of Coral Reefs

The following are some key roles that coral reefs play:...

Coral Reefs in India

Some of the major Coral Reefs in India are:...

Threats to Coral Reefs

The following is a list of the threats affecting coral reefs:...

FAQs on Coral Reefs

1. What makes coral reefs so important?...