Readers ask: How To Draw Coral Reef?

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How coral reefs are formed step by step?

Coral reefs begin to form when free-swimming coral larvae attach to submerged rocks or other hard surfaces along the edges of islands or continents. As the corals grow and expand, reefs take on one of three major characteristic structures — fringing, barrier or atoll.

What are the three types of coral?

The three main types of coral reefs are fringing, barrier, and atoll.

What are the 4 types of coral reefs?

Scientists generally divide coral reefs into four classes: fringing reefs, barrier reefs, atolls, and patch reefs.

  • Fringing reefs grow near the coastline around islands and continents.
  • Barrier reefs also parallel the coastline but are separated by deeper, wider lagoons.

What eats a coral?

In addition to weather, corals are vulnerable to predation. Fish, marine worms, barnacles, crabs, snails and sea stars all prey on the soft inner tissues of coral polyps. In extreme cases, entire reefs can be devastated if predator populations become too high.

What are in coral reefs?

Coral reefs provide habitat for a large variety of marine life, including various sponges, oysters, clams, crabs, sea stars, sea urchins, and many species of fish. Coral reefs are also linked ecologically to nearby seagrass, mangrove, and mudflat communities.

Why are the coral reefs bleaching?

The leading cause of coral bleaching is climate change. A warming planet means a warming ocean, and a change in water temperature—as little as 2 degrees Fahrenheit—can cause coral to drive out algae. Coral may bleach for other reasons, like extremely low tides, pollution, or too much sunlight.

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What eats kelp in the ocean?

Jewelled top snails live on kelp blades and eat detritus and things that grow on the kelp. Purple sea urchins eat kelp at their holdfasts (the parts that attach kelp to the bottom). They can reproduce very quickly. In the north Pacific, the sea otter is the main and only predator of kelp.

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