Lace Coral

Overview

Lace Coral (Pocillopora damicornis) is a widespread and highly adaptable stony coral found throughout the tropical and subtropical waters of the Indian and Pacific Oceans. It is a colonial species that forms dense, branching clusters, playing a significant role in the structure and health of reef ecosystems.

Distribution & habitat

This species is remarkably versatile, thriving in a variety of environments ranging from sheltered lagoons and mangrove swamps to exposed reef slopes. It is commonly found at depths between 1 and 40 meters, with peak abundance often occurring in the 5 to 20-meter range. It can form expansive, monospecific stands or grow alongside other coral species.

Appearance

Colonies typically grow into compact, bushy clumps. The branches are characterized by the presence of verrucae—small, wart-like protuberances—though these are often irregular in arrangement and can sometimes resemble incipient branches. The growth form is highly plastic; colonies in calm waters tend to be more open and branched, while those in high-energy environments develop a more compact, sturdy structure. Their coloration is variable, appearing in shades of pale brown, greenish, yellowish-brown, or pink.

Biology & behavior

Pocillopora damicornis maintains a vital symbiotic relationship with micro-algae (zooxanthellae) that live within its tissues. These algae provide the coral with essential nutrients through photosynthesis, which in turn supports the rapid growth of the coral's calcareous skeleton. The species is known for its relatively fast growth rates compared to many massive coral types, making it a frequent subject in reef restoration efforts.