Acropora microclados

Acropora microclados is a stony coral belonging to the family Acroporidae, known for its branching growth form typical of the genus, with colonies forming arborescent or corymbose structures that provide three-dimensional habitat complexity on reef substrates. Like other Acropora species, it relies on symbiotic zooxanthellae for energy through photosynthesis and reproduces via broadcast spawning, contributing to reef framework building and offering shelter for numerous invertebrate and fish species.

The species occurs in marine neritic waters across the Indo-Pacific, with recorded populations in Australia, Thailand, Taiwan, China, Japan, and the western Indian Ocean including Comoros and Mayotte. It typically inhabits shallow reef environments where light penetration supports its symbiotic algae.

This coral faces a wide array of ongoing pressures. Coastal mining and quarrying degrade reef substrate and increase sedimentation, while fishing and harvesting activities damage reef structure and disrupt associated fauna. Recreational activities, including diving and boating, cause physical damage.

Water quality is compromised by domestic and urban wastewater, agricultural runoff, and pollution from non-timber crop cultivation. Invasive species, coral diseases, and outbreaks of native predators such as crown-of-thorns starfish add further stress. Storms, flooding, and broader habitat shifting linked to climate change compound these impacts, alongside fire and fire suppression effects on adjacent terrestrial runoff patterns.

Conservation efforts include the species' listing under CITES Appendix II, inclusion in regional marine protected areas across its range states, and broader reef monitoring and water-quality management programs implemented by national environmental agencies. Coral reef restoration initiatives in several range countries also target Acropora species for propagation.

The population trend is decreasing, and the species is currently assessed as Endangered, reflecting cumulative and continuing pressure from habitat degradation, pollution, and climate-related disturbances across its range.