VU

lesser star coral

Goniastrea ramosa

Unknown

Overview

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

Lesser star 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. Destructive fishing practices and physical damage from boat anchors and diving activities further fragment remaining populations across its Indo-Pacific range.

Threat summary

Habitat

Lesser star coral inhabits shallow coral reef environments and lagoons throughout the Indo-Pacific, typically found in depths of 1-20 meters where it forms branching colonies on reef flats and slopes. The species prefers areas with moderate water flow and clear conditions, often growing in mixed coral communities alongside other scleractinian corals.

MARINE· major

Frequently asked questions

Why is lesser star coral classified as Vulnerable?
lesser star 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. Lesser star 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. Destructive fishing practices and physical damage from boat anchors and diving activities further fragment remaining populations across its Indo-Pacific range.
Where does lesser star coral live?
lesser star coral occurs in Australia, Indonesia, and Solomon Islands. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to lesser star coral?
The main threats to lesser star 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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