Acropora hoeksemai

Acropora hoeksemai is a stony coral belonging to the family Acroporidae, one of the most diverse groups of reef-building corals. Like other Acropora species, it forms colonies with branching growth patterns, secreting calcium carbonate skeletons that provide the structural foundation for reef ecosystems. These colonies host symbiotic algae (zooxanthellae) that supply energy through photosynthesis, while the coral itself provides habitat and shelter for a wide range of fish, invertebrates, and other reef organisms, making it an important contributor to reef architecture and biodiversity.

This species inhabits marine neritic waters across the Coral Triangle and surrounding Indo-Pacific region, with recorded populations in Papua New Guinea, the Philippines, the Solomon Islands, Australia, Malaysia, the Maldives, Thailand, and Palau. It typically occurs on shallow reef environments where light penetration supports its symbiotic algae.

The species faces a broad array of pressures. Fishing and harvesting activities, along with recreational use of reef areas, cause direct physical damage. Water quality is degraded by domestic and urban wastewater, agricultural runoff, and pollution from non-timber crop production.

Coral disease and competition from invasive or problematic native species further stress colonies, while storms, flooding, and broader habitat alteration—linked in part to climate change—compound existing damage. Fire and fire suppression practices affecting adjacent terrestrial watersheds also indirectly influence coastal water conditions.

Conservation efforts include marine protected areas across parts of its range, reef monitoring programs, and regional initiatives targeting water quality improvement and sustainable fisheries management within Coral Triangle nations. International trade is regulated under CITES Appendix II for Acropora species.

Given the accumulation of ongoing threats and the sensitivity of Acropora corals to environmental disturbance, the population trend remains decreasing, and the species is currently assessed as Endangered.