Tubastraea tagusensis, commonly known as the Ahermatypic Coral, is a fascinating and important member of the marine ecosystem. While often overshadowed by its photosynthetic counterparts, this coral plays a vital role in the balance of its habitat, particularly in the deeper regions where sunlight struggles to penetrate.
Description & Characteristics
Tubastraea tagusensis is a solitary, non-photosynthetic coral that typically grows to a maximum size of 5-10 centimeters. It features a robust, cup-shaped skeleton adorned with numerous radial septa, giving it a distinctive appearance. The coral’s surface is covered in polyps, the feeding units of the organism, which are responsible for capturing prey.
Habitat and Occurrence
Tubastraea tagusensis is a notable example of an ahermatypic coral, meaning it does not rely on symbiotic algae (zooxanthellae) for energy. This allows it to thrive in a wider range of environments, including those with limited sunlight penetration. The Ahermatypic Coral often inhabits the mesophotic zone, a region between 30 and 150 meters deep, where light levels are significantly reduced. It can also be found in shallower waters, particularly in areas with strong currents or turbidity.
Taxonomy
The species Tubastraea tagusensis belongs to the Class: Hexacorallia, Order: Scleractinia, and Family: Dendrophylliidae. This family is known for its diversity of forms and its ability to colonize a wide range of habitats, demonstrating the evolutionary success of this group of corals.
Feeding
As an azooxanthellate coral, Tubastraea tagusensis is a carnivore, relying on a diet of zooplankton, copepods, brine shrimp nauplii, and amphipods. The coral’s polyps extend their tentacles into the water column, capturing prey and transferring it to the central mouth. This feeding strategy allows Tubastraea tagusensis to thrive in the dimly lit depths of the ocean.
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