VU

starry cup coral

Acanthastrea hemprichii

Unknown

Overview

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

Starry cup coral faces severe pressure from ocean warming and acidification, which cause bleaching events and weaken its calcium carbonate skeleton. Coastal development and sedimentation from land-based activities smother coral colonies and reduce water quality in shallow reef environments. Collection for the marine aquarium trade has historically impacted accessible populations, though this pressure has decreased with improved captive propagation techniques.

Threat summary

Habitat

Starry cup coral inhabits shallow coral reefs and lagoons in the Indo-Pacific, typically found at depths of 5-30 meters on reef slopes and protected areas with moderate water flow. It forms large colonies on hard substrates and requires clear, warm waters with stable salinity levels.

MARINE· major

Frequently asked questions

Why is starry cup coral classified as Vulnerable?
starry cup coral is classified as Vulnerable because the population is declining and the species faces a high risk of extinction in the medium-term future if current pressures continue. Starry cup coral faces severe pressure from ocean warming and acidification, which cause bleaching events and weaken its calcium carbonate skeleton. Coastal development and sedimentation from land-based activities smother coral colonies and reduce water quality in shallow reef environments. Collection for the marine aquarium trade has historically impacted accessible populations, though this pressure has decreased with improved captive propagation techniques.
Where does starry cup coral live?
starry cup coral occurs in American Samoa, Australia, Djibouti, Egypt, French Southern Territories, and Indonesia (plus 13 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 starry cup coral?
The main threats to starry cup coral are ai-1, ai-2, ai-3, and ai-4. The full IUCN-classified threat record for this species is detailed on the species page.

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