Brown Staghorn Coral

Overview

Brown Staghorn Coral (Acropora muricata) is a prominent reef-building species widely distributed across the Indo-Pacific. It is known for forming extensive, arborescent thickets that serve as vital structural components of tropical reef ecosystems.

Distribution & habitat

This species is found throughout the tropical Indo-Pacific, ranging from the Red Sea and the Gulf of Aden to the Indian Ocean, Southeast Asia, and the western Pacific. It typically inhabits shallow reef environments, including reef slopes and lagoons, where it thrives in areas with sufficient sunlight.

Appearance

Acropora muricata forms large, branching colonies that can span over 10 meters in diameter. The colony structure is arborescent, featuring cylindrical branches that appear compact in shallow, high-energy waters and more open in deeper, calmer environments. The coral is generally cream, brown, or blue in color, often with distinctively pale branch tips. Its surface is characterized by protruding axial corallites and tube-shaped radial corallites.

Biology & behavior

As a hermatypic coral, it maintains a symbiotic relationship with photosynthetic algae known as zooxanthellae, which provide the majority of its energy requirements. It is a hermaphroditic species that reproduces sexually through broadcast spawning, releasing gametes into the water column. Like many corals, it is highly sensitive to environmental stressors, including rising water temperatures and pollution, which can lead to bleaching and colony mortality.