Corals and Coral Reefs

Individual coral polyps in coral reefs are usually very small, usually less than 1/2 inch (or ~ 1.5 cm) in diameter. The largest polyps are found in mushroom corals and are 5 inches or longer in length. However, as corals are colonies, the size of colonies can be much larger. The large pier will be the size of a small car and one branch colony can cover the whole coral reef.

Coral reefs mostly consist of many colonies, but they are still bigger. The largest coral reef is the Great Barrier Reef, 1,600 miles (2,600 km) from the eastern coast of Australia. It is too big to see from the universe!

Coral reefs are formed when coral grows in shallow waters near the shore of the continent and near small islands. Most of coral reefs are known as the surrounding coral reefs because they surround the coastline of the nearby land. However, there are some interesting things that happen when coral reefs grow around volcanic islands. For millions of years, as coral continues to grow, volcano gradually sinks outward towards the open sea, facing upwards toward the surface. Over time, a lagoon is formed between the coral reef and the sinking island, and coral reefs are formed around the lagoon. Eventually the volcano was completely submerged and only the coral circle remained. This is called an atoll. The waves eventually accumulate sand and coral fragments on the coral growing at the atoll, forming a part of the land. Many of the Marshall Islands are the Pacific island system, home to the Marshall Islands, atolls.

Large coral reefs and planting of coral reefs take a long time as each coral slowly grows. The fastest coral grows more than 6 inches (15 cm) a year, but most grow less than 1 inch per year. Coral reefs grow slowly as corals become dead and become smaller and become harder. Individual colonies can usually survive for decades to centuries and some deep-sea colonies survived for more than 4,000 years. One way we know this is because the corals just lay the rings like trees. These flaws will tell us about hundreds or thousands of years ago. The Great Barrier Reef, which exists today, began to grow about 20,000 years ago.

In the shallow and deep sea, corals can be seen all over the world, but coral reefs exist only in shallow waters of the tropical subtropical zone. This is because the algae contained in the tissue needs light for photosynthesis and it is preferable that the water temperature is 70 to 85 ° F (22 to 29 ° C).

The deep-sea coral flourishes in a cold, dark sea, with a depth of 20,000 feet (6,000 meters). Both stone-rich corals and soft corals are in the deep sea. Deep ocean corals do not have the same algae and do not require sunlight or warm water to survive, but they also grow very slowly. The place to find them is the seamount called Seamount.

Coral reefs are often referred to as tropical tropical forests because they are more plants and animal species than any other marine ecosystem. Coral reefs are made by invertebrate marine organisms known as polyps. Coral polyps form a hard limestone skeleton underneath them and around their base. These limestone skeletons help to protect polyps by attaching polyps to stable surfaces such as rocks and other corals. As the polyp dies and leaves the limestone skeleton, a new lizard has grown over the old bone and has made a large coral reef for thousands of years. Microscopic algae inhabit corals. Algae inhabiting polyps undergo photosynthesis and produce sugars and oxygen consumed by polyps. Instead, the polyp provides a shelter for the algae and also produces carbon dioxide for the algae used for photosynthesis.

How will coral reefs be formed? Coral reefs are composed of coral skeletons. The coral secretes a hard calcium carbonate skeleton that protects coral polyps. Each polyp forms a small skeleton cup called a flowerbed. It is hidden when not active or threatened. As coral crowds grow, it must secrete new bone material on old bones. Years later, aggregate accumulation formed coral reefs.