Coelastrea
Coelastrea is a genus of stony corals in the family Merulinidae. It includes several species of branching corals that are commonly found in the Indo-Pacific region. They are known for their distinctive branching growth forms and their ability to form large colonies. These corals are important reef builders and play a crucial role in the health and biodiversity of coral reef ecosystems.
Common Names
Coelastrea corals are commonly known as "branching corals" or "staghorn corals" due to their characteristic branching growth forms. However, specific common names for individual species may vary depending on location and language.
Characteristics
Coelastrea corals are characterized by their branching growth forms, which can vary from short, stubby branches to long, slender ones. They typically have a hard, calcareous skeleton made up of calcium carbonate. The polyps, which are the individual animals that make up the coral colony, are small and have a ring of tentacles surrounding their mouths. The coral's color can vary depending on the species and the environment, ranging from brown and grey to yellow and green. Some species may also have fluorescent pigments that make them appear brightly colored under UV light.
Environment
Coelastrea corals are typically found in shallow, clear waters in tropical and subtropical regions. They prefer areas with strong water circulation and plenty of sunlight. These corals can tolerate a wide range of temperatures and salinity, but they are sensitive to pollution and sedimentation. Coelastrea species play a vital role in coral reef ecosystems, providing habitat for fish and other marine life.
Species
The genus Coelastrea includes several species, some of the most commonly recognized are:
- Coelastrea aspera
- Coelastrea echinata
- Coelastrea rosea
- Coelastrea tenuis