Acropora sukarnoi

Acropora sukarnoi is a reef-building coral in the family Acroporidae, characterized by a branching colonial structure typical of the genus Acropora. Like other scleractinian corals, it consists of numerous small polyps that secrete calcium carbonate skeletons, collectively forming complex three-dimensional structures. These colonies provide critical habitat and shelter for reef fish, invertebrates, and other marine organisms, while also contributing to reef framework building and coastal protection.

The species relies on symbiotic zooxanthellae algae for the majority of its nutritional needs through photosynthesis.

This coral occurs across the Indo-Pacific region, with recorded populations in Indonesia, the Philippines, Solomon Islands, Madagascar, Australia, Sri Lanka, Thailand, and Brunei. It inhabits shallow reef environments typical of tropical marine ecosystems, where light penetration supports its photosynthetic symbionts.

The species faces numerous ongoing pressures. Fishing and harvesting practices, along with recreational activities, cause direct physical damage to colonies. Water quality is degraded by domestic and urban wastewater discharge and agricultural runoff, while disease outbreaks and invasive species add further biological stress.

Habitat alteration, storms, and flooding events cause structural damage to reef systems, and broader pollution sources compound these impacts. Fire and fire suppression practices affecting adjacent terrestrial watersheds also influence coastal water conditions.

Conservation efforts for this species occur largely within the framework of broader marine protected area networks and coral reef management programs across its range countries, including regulations on fishing practices and water quality monitoring initiatives. Regional coral reef conservation initiatives across Southeast Asia and the Indo-Pacific also contribute to habitat protection.

The population trend is decreasing, and the species is classified as Endangered. Given the persistence and diversity of threats affecting its habitat, the outlook remains concerning without sustained intervention.