CR

Alveopora japonica

Declining

Overview

A detailed profile for this species is sourced from the IUCN Red List of Threatened Species as assessments become available.

Alveopora japonica faces severe population declines primarily due to ocean acidification and rising sea temperatures associated with climate change, which compromise its calcium carbonate skeleton formation and cause widespread bleaching events. Coastal development and sedimentation from land-based activities have degraded critical reef habitats, while collection for the marine aquarium trade has further reduced wild populations in accessible areas.

Threat summary

Habitat

Alveopora japonica inhabits shallow coral reef environments and rocky substrates in tropical and subtropical waters of the Indo-Pacific region. This hard coral species typically occurs at depths of 5-30 meters in areas with moderate water flow and adequate light penetration for its symbiotic zooxanthellae.

Rocky areas· major

Conservation measures underway

Habitat & natural process restorationSpecies recoveryLegislation

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Frequently asked questions

Why is Alveopora japonica classified as Critically Endangered?
Alveopora japonica is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Alveopora japonica faces severe population declines primarily due to ocean acidification and rising sea temperatures associated with climate change, which compromise its calcium carbonate skeleton formation and cause widespread bleaching events. Coastal development and sedimentation from land-based activities have degraded critical reef habitats, while collection for the marine aquarium trade has further reduced wild populations in accessible areas.
Where does Alveopora japonica live?
Alveopora japonica occurs in Japan, South Korea, and Taiwan. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Alveopora japonica?
The main threats to Alveopora japonica 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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