Difference Between Coral and Reef

Coral vs Reef

Coral and reef often come together in the form of coral reef, yet the two are different entities that function as a unit. Both corals and reefs bring a lot of interests for biology in general and for ecology and environmental science in particular. When both coral and reef are further studied, additional differences between them could be understood.

Coral

Coral is acnidarianin the Class: Anthozoa living in the marine environment. Corals live in colonies that are composed of identical individuals in thepolypform. Beinginvertebrates, coral polyps do not have an internal skeleton, but they secrete calcium carbonate that forms a hard skeleton around each coral polyp. Thisexoskeletonis usually formed around the base of the polyp, and the secretion is continued over many generations, which create a large reef eventually. The shape of the exoskeleton is characteristic for each species.

There are more than 70,000 different species of corals in the world, and the vast majority of them inhabit the tropical warm marine waters. The common name referred for each coral species has been usually based on the external appearance of the exoskeleton, which is resulted from the secretions of the polyp colony. It would be important to state that there are two main types of corals known asHermatypic (reef-builders)andAhermatypic. With the presence of various colours in the live polyps, coral colonies present an attractive and colourful appearance to their environment. One of the features that attract the coral watchers is this beauty of the corals.

Corals feed on other organisms such asplanktonand small fish, by immobilizing the prey vianematocysts.Asexual reproductionis most common in corals, but sexual reproduction via spawning is also present among them. Spawning is very interesting as it occurs synchronously with the other species during the same night. Although they are made ofanimal cells, as they are so classified, corals appear as ever blooming underwater gardens.

Reef

Reef is a physical structure that has been formed underwater through eitherbiotic or abioticprocesses. The best-known reefs are thecoral reefs, which have been resulted through the biotic process known as reef formation by live reef-building corals in tropical marine waters. In addition to these natural reefs, there may be artificial reefs such as shipwrecks on the seafloor. It is highly interesting that such artificial reefs provide highly complexhabitatsfor fish and other marine organisms so that they can hide frompredatorseasily.

Biotic reefs such as coral reefs and oyster beds are of great ecological importance, providing habitats for a range of organisms from microscopicalgaeup to massivevertebrates. Depending on the place and shape of the biotic reef, there are three main types known as Fringing reef, Barrier reef, and Atoll reef.Fringing reefis attached to the land, whilebarrier reefis formed slightly away from the land forming a lagoon that is protected from waves, whereasatollsare formed where there is no land around.

It would be important to notice that the ever loving coral reefs are formed through the secretion of calcareous exoskeleton by the coral polyps. Reefs are extremely important physical structures that provide habitats for a vast range of organisms.

What is the difference between Coral and Reef?

•有限公司ral is a live animal while reef is a physical structure.

• Reef is the habitat of the corals, which has been created through the secretions of coral polyps over many generations.

•有限公司rals are always live while a reef could be resulted through either biotic or abiotic processes.