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Anacropora reticulata

Declining

Overview

Anacropora reticulata is a colonial stony coral in the family Acroporidae, distinguished by its delicate, arborescent branching structure formed from small, tubular corallites arranged in a net-like (reticulate) pattern. Like other scleractinian corals, it is a colonial cnidarian that secretes a calcium carbonate skeleton and hosts photosynthetic zooxanthellae, which supply the majority of its energy needs. Colonies contribute to the physical framework of reef habitats, providing structural complexity that supports associated invertebrate and fish communities in shallow lagoon and reef environments.

The species occurs across the Indo-Pacific, with records from Indonesia, Australia, Japan, Papua New Guinea, the Philippines, Malaysia, the Solomon Islands, Vanuatu, the Marshall Islands, Mauritius, China, Palau, and Fiji. It inhabits marine neritic zones, typically in sheltered, shallow reef flats and lagoons.

The species is classified as Endangered, with a decreasing population trend. Threats include destructive fishing and harvesting practices, recreational activities such as anchoring and diving, disease outbreaks and invasive species, and pollution from domestic wastewater and agricultural runoff. Habitat alteration linked to coastal development and shifting environmental conditions further compounds these pressures, and cumulative sedimentation and nutrient loading reduce water quality critical to coral health.

Conservation efforts rely largely on broader reef protection frameworks, including marine protected areas within its range states, water quality regulations, and international trade controls under CITES, which lists Acroporidae corals.

Given its restricted colony form, sensitivity to water quality, and exposure to multiple compounding stressors across a wide but fragmented range, the species' long-term outlook remains precarious without sustained reef-wide protective measures.

This coral faces pressure from fishing activities and disturbance from recreational use like diving and boating, along with damage from invasive species and disease. It's also harmed by pollution from sewage, agricultural runoff, and farming near coastal areas, as well as changes to its ocean habitat, likely including warming waters and shifting conditions. These combined threats appear to be ongoing and show no signs of easing.

Threat summary

Habitat

Marine neritic· major

Conservation measures underway

Habitat & natural process restorationSpecies recoveryLegislation

Frequently asked questions

Why is Anacropora reticulata classified as Endangered?
Anacropora reticulata 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. This coral faces pressure from fishing activities and disturbance from recreational use like diving and boating, along with damage from invasive species and disease. It's also harmed by pollution from sewage, agricultural runoff, and farming near coastal areas, as well as changes to its ocean habitat, likely including warming waters and shifting conditions. These combined threats appear to be ongoing and show no signs of easing.
Where does Anacropora reticulata live?
Anacropora reticulata occurs in Australia, China, Fiji, Indonesia, Japan, and Malaysia (plus 7 other countries). Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Anacropora reticulata?
The main threats to Anacropora reticulata are 11.1, 2.1, 5.4, and 6.1. The full IUCN-classified threat record for this species is detailed on the species page.

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