Anacropora forbesi

Anacropora forbesi is a colonial stony coral in the family Acroporidae, distinguished by its delicate, arborescent branching structure with small, tubular corallites arranged along slender branches. Like other scleractinian corals, it relies on symbiotic zooxanthellae for energy through photosynthesis while extending polyps to capture plankton at night. As a reef-building species, it contributes calcium carbonate skeletal material to reef structure, providing habitat complexity that supports associated invertebrate and fish communities.

This species occurs in shallow marine neritic waters across parts of the western Pacific and Indo-Pacific region, including Micronesia, Australia, Thailand, Taiwan, China, Japan, and Palau. It typically inhabits protected lagoon and reef flat environments where water movement is moderate.

The species faces a range of ongoing pressures. Fishing and harvesting activities, along with recreational use of reef areas, cause physical damage to fragile branching colonies. Water quality is degraded by domestic and urban wastewater discharge, agricultural runoff, and effluents from non-timber crop production, all of which elevate nutrient loads and promote algal competition.

Coral disease, outbreaks of problematic native species such as crown-of-thorns starfish, and invasive species further stress colonies. Broader habitat alteration and unspecified pollution sources compound these effects, collectively reducing colony survival and recruitment.

Conservation attention for Anacropora forbesi occurs primarily within the framework of broader coral reef protection, including marine protected areas across its range, reef monitoring programs, and international trade regulation under CITES, which lists all scleractinian corals. Habitat restoration and water quality management initiatives in several range countries indirectly support this species.

The population trend is currently decreasing, and the species is classified as Vulnerable. Without substantial reduction in cumulative reef stressors, continued decline is expected.