The Purple Tipped Acropora, scientifically known as Acropora secale, is a species of hard coral found in tropical and subtropical waters. Its unique appearance, characterized by its vibrant purple tips, has made it a captivating subject for marine enthusiasts and researchers alike.
Description & Characteristics
Acropora secale is a branching coral with a distinctive growth pattern, forming colonies that can reach significant sizes. The coral’s branches, often referred to as “corallites,” are cylindrical and can be relatively thick. What sets this species apart is its vibrant coloration. While the base of the branches is usually a pale brown or beige, the tips of the branches exhibit a striking purple hue, a characteristic that gives this species its common name.
Habitat and Occurrence
Acropora secale is a resilient species that thrives in a variety of marine environments. It can be found in the subtidal, sublittoral, and infralittoral zones, ranging from the lower limit of the intertidal zone down to the shelf edge at around 200 meters in depth. This wide depth range reflects its adaptability to different light conditions and water currents. The species is classified as neritic, meaning it primarily occurs in shallow waters over the continental shelf, making it a common sight in these marine ecosystems.
Taxonomy
Acropora secale belongs to the Class: Hexacorallia, an extensive class of marine invertebrates that includes corals, sea anemones, and jellyfish. The Hexacorallia further comprises the Order: Scleractinia, which encompasses the hard corals characterized by their rigid skeletons composed of calcium carbonate. Finally, Acropora secale is part of the Family: Acroporidae, a diverse group of branching corals known for their complex structures and ecological significance.
Feeding
Acropora secale, like most corals, relies on a dual-feeding strategy. It obtains nutrients through a symbiotic relationship with microscopic algae called zooxanthellae, which live within its tissues. These algae photosynthesize, providing the coral with essential energy. Additionally, Acropora secale captures plankton, small organisms drifting in the water, using its tentacles. This combination of zooxanthellae and plankton feeding allows Acropora secale to thrive in its diverse habitats.
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