Astreopora listeri

Astreopora listeri is a colonial stony coral in the family Acroporidae, forming massive or encrusting structures with a distinctively pimpled or papillate surface texture created by raised, tubercle-like calices. Like other scleractinian corals, it is a colonial animal whose polyps host symbiotic zooxanthellae, which supply energy through photosynthesis and give the colony its coloration. The species contributes to the structural framework of reef ecosystems, providing substrate and shelter for other invertebrates and fish.

This coral occurs across the Indo-Pacific region, with records from the Philippines, Australia, Thailand, Taiwan, China, Japan, and Fiji. It inhabits marine neritic waters, typically on shallow reef slopes and reef flats within the photic zone required for its symbionts to function.

The species is listed as Endangered, with a decreasing population trend. Threats include destructive fishing and harvesting practices, damage from recreational activities such as diving and anchoring, disease outbreaks and pressure from problematic native species, and pollution from domestic wastewater, agricultural runoff, and non-timber crop cultivation. Habitat shifting linked to broader environmental change further compounds these pressures, and invasive species add additional ecological stress to already weakened reef systems.

Conservation measures affecting this species are largely indirect, arising from marine protected areas, reef monitoring programs, and water quality regulations implemented across parts of its range. Regional coral reef management initiatives in Southeast Asia and Australia aim to reduce sedimentation, nutrient loading, and destructive fishing, though enforcement and coverage remain inconsistent.

Given the combination of localized human pressures and the compounding effects of disease and habitat degradation, the species' trajectory remains negative. Continued decline is expected unless water quality and reef management measures are substantially strengthened across its range.