EN

Montipora venosa

Declining

Overview

Montipora venosa is a colonial reef-building coral in the family Acroporidae, typically forming encrusting to plate-like or laminar colonies. Like other Montipora species, its surface is covered in small, densely packed corallites that give the colony a finely textured appearance, and its tissue hosts symbiotic algae (zooxanthellae) that supply the majority of its energy through photosynthesis. As a colonial polyp organism, it contributes to the physical framework of reef systems, offering structural habitat and contributing to reef accretion, which supports the broader community of fish and invertebrates that depend on coral substrate.

The species occurs in marine neritic waters across the Indo-Pacific, with recorded ranges spanning Australia, Vietnam, Taiwan, China, Japan, and Palau. It inhabits shallow reef environments typical of the genus, where light penetration supports its symbiotic algae.

Montipora venosa is classified as Endangered, with a decreasing population trend. Key threats include outbreaks of coral disease and predation pressure from problematic native species, such as coral-eating invertebrates, which can rapidly degrade colony tissue. Additionally, habitat shifting and alteration—linked to changing sea temperatures, water chemistry, and reef structural loss—compound stress on existing colonies and limit successful recruitment of new individuals.

Conservation efforts affecting this species largely fall under broader regional reef protection frameworks, including marine protected areas across its range states, coral reef monitoring programs, and international trade regulation under CITES, which lists Acroporidae corals generally. Species-specific interventions remain limited.

Given ongoing disease pressure and habitat degradation across its range, the outlook for Montipora venosa remains concerning, with continued population decline expected unless broader reef stressors are addressed at a regional and global scale.

Montipora venosa, a coral species, faces ongoing harm from native species and diseases that damage or kill coral tissue, weakening colonies over time. It is also threatened by changes to its reef habitat, such as shifts in water conditions and coral reef structure that make it harder for the species to survive and grow. Both of these threats are currently ongoing and appear to be stable rather than clearly worsening or improving, based on available information.

Threat summary

Habitat

Marine neritic· major

Conservation measures underway

Habitat & natural process restorationSpecies recoveryLegislation

Frequently asked questions

Why is Montipora venosa classified as Endangered?
Montipora venosa is classified as Endangered — facing a very high risk of extinction in the wild — because population numbers are declining steeply and key habitats are under sustained pressure. Montipora venosa, a coral species, faces ongoing harm from native species and diseases that damage or kill coral tissue, weakening colonies over time. It is also threatened by changes to its reef habitat, such as shifts in water conditions and coral reef structure that make it harder for the species to survive and grow. Both of these threats are currently ongoing and appear to be stable rather than clearly worsening or improving, based on available information.
Where does Montipora venosa live?
Montipora venosa occurs in Australia, China, Japan, Palau, Taiwan, and Vietnam. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Montipora venosa?
The main threats to Montipora venosa are 11.1, and 8.2. The full IUCN-classified threat record for this species is detailed on the species page.

Get weekly conservation intelligence

One short digest a week of the most striking species and country data we ship, plus breaking conservation news paired with our database where it matters.

Free, no spam. One-click unsubscribe in every email.