Montipora informis

Montipora informis is a colonial stony coral in the family Acroporidae, typically forming encrusting to plate-like or laminar growth forms with small, evenly distributed corallites across its surface. Like other scleractinian corals, it builds a calcium carbonate skeleton and depends on a symbiotic relationship with photosynthetic algae (zooxanthellae) housed within its tissues, which supply the coral with energy while the coral in turn provides shelter and access to sunlight. Colonies contribute to the physical structure of reef habitats, offering substrate and shelter for numerous invertebrates and fish species, and playing a role in overall reef calcification and growth.

This species occurs in shallow marine neritic waters across a broad Indo-Pacific range, with recorded populations in Madagascar, Australia, Taiwan, China, and Japan. It is generally found on reef flats, slopes, and lagoons where light penetration supports its symbiotic algae.

Montipora informis faces pressure from problematic native species and disease outbreaks, which can cause tissue loss and colony mortality, sometimes triggered or worsened by declining water quality. Habitat shifting and alteration, linked to changing sea temperatures and ocean conditions, further destabilizes the reef environments this coral depends on. These pressures act cumulatively, reducing colony resilience and recovery capacity.

Conservation efforts affecting this species largely fall under broader regional reef management programs, including marine protected areas, water quality monitoring, and international trade regulation through CITES, which lists Acroporidae corals. Species-specific interventions remain limited.

Currently listed as Endangered with a decreasing population trend, Montipora informis continues to face compounding environmental stressors across its range. Without substantial reduction in disease pressure and habitat degradation, its populations are expected to remain under sustained decline.