Montipora crassituberculata

Montipora crassituberculata is a reef-building coral in the family Acroporidae, distinguished by an encrusting to submassive growth form with distinctive tuberculate (knob-like) surface projections from which its name derives. Like other scleractinian corals, it hosts symbiotic zooxanthellae that supply energy through photosynthesis, while the coral colony provides calcium carbonate structure that forms critical habitat for reef fish, invertebrates, and other marine organisms. Its growth contributes to overall reef accretion and structural complexity, functions important for coastal ecosystem stability.

The species occurs across a broad Indo-Pacific range, spanning shallow marine neritic waters from East Africa-adjacent areas such as Mauritius and Sri Lanka, through South and Southeast Asia including India, Vietnam, Thailand, Malaysia, and Indonesia, into the western Pacific across Japan, Taiwan, China, Papua New Guinea, and numerous Pacific island nations including Australia, Vanuatu, the Solomon Islands, Palau, and the Marshall Islands.

The species faces a combination of pressures degrading reef habitats throughout its range. Fishing and harvesting activities, along with recreational reef use, cause direct physical damage. Water quality is compromised by domestic wastewater, agricultural runoff, and effluents from crop production. Disease, both from invasive species and native pathogens, adds further mortality pressure, compounded by habitat shifting linked to broader environmental change.

Conservation attention centers on Marine Protected Areas across parts of its range and broader coral reef monitoring programs, alongside water quality management initiatives targeting land-based pollution sources. No population figures are available. Given the persistence of multiple concurrent, unresolved threats across its wide but fragmented range, the species' population trend remains decreasing, and its long-term outlook depends heavily on improved coastal water management and reef protection enforcement.