The most intense global coral bleaching event on record has likely ended, NOAA confirms

The fourth global coral bleaching event, the most widespread and intense on record, has likely concluded in mid-2025, NOAA experts have determined following an analysis of satellite data and field bleaching observations. From early 2023 to mid-2025, 84% of the world’s coral reefs were subject to bleaching-level heat stress across all three coral reef-containing ocean […]

Status and Trend of Seychelles Coral Reefs 2026

On Tuesday 26th May, the Seychelles Conservation and Climate Adaptation Trust (SeyCCAT) launched the Status and Trend of Seychelles Coral Reefs: 2026, one of the most comprehensive national coral reef assessments yet produced for the country. Funded through the Global Fund for Coral Reefs under the Seychelles OCEAN’S RESOLVE Programme, the report consolidates dispersed monitoring […]

U.S. Coral Reef Task Force Announces Standard Operating Procedure for Coral Bleaching Monitoring

As coral bleaching events intensify in frequency and severity, the U.S. Coral Reef Task Force (USCRTF) announced the release of its first Standard Operating Procedure (SOP) for monitoring coral bleaching. This new guidance, released in May 2026, addresses the critical need for standardized and simplified procedures to quantify the impacts of bleaching consistently across space […]

1000+ coral reefs ‘discovered’ in northern Australia

Australian Institute of Marine Science (AIMS) scientists have unveiled and mapped more than 1000 previously uncharted coral reefs in northern Australia, all without setting foot on a boat, or even leaving their offices. Despite being a habitat for a wide range of marine life, and possibly known by locals, reefs from Houtman Abrolhos in Western Australia […]

Major milestones for MERMAID

MERMAID, the open-source coral reef data platform led by the Wildlife Conservation Society, has announced a landmark development in reef monitoring governance: Indonesia has become the first government to adopt and integrate MERMAID into its national marine protected area infrastructure. The news was shared in MERMAID’s latest newsletter, which also highlighted a series of platform […]

NOAA monitoring highlights resilience of Flower Garden Banks reefs

A new technical report from the National Oceanic and Atmospheric Administration (NOAA) presents the latest findings from the National Coral Reef Monitoring Program (NCRMP), documenting over a decade of coral reef trends (2013–2024) at the East and West Flower Garden Banks. The report provides a comprehensive assessment of coral and fish communities based on long-term, […]

The Government of Monaco’s Continued Support to the GCRMN

The Global Coral Reef Monitoring Network (GCRMN) is pleased to announce that the Government of Monaco is continuing its support to the GCRMN for 2026, specifically for the production of the Status of Coral Reefs of the World: 2025 report, in partnership with the Australian Institute of Marine Science (AIMS), the host institution of the […]

The GCRMN in Bangkok to advance the Status of Coral Reefs of the World

From 7 to 13 February 2026, the Global Coral Reef Monitoring Network brought together editors and regional coordinators in Bangkok, Thailand, to advance work on the forthcoming Status of Coral Reefs of the World: 2025 report. Hosted by the Australian Institute of Marine Science (AIMS), as the host intimation of the GCRMN, the week combined […]

GCRMN welcomes adoption of IUCN Motion 037

The Global Coral Reef Monitoring Network (GCRMN) welcomes the publication of the Resolutions and Recommendations adopted at the IUCN World Conservation Congress 2025 in Abu Dhabi, now available through the IUCN Resolutions and Recommendations platform in English, French and Spanish. Of particular relevance is IUCN Motion 037: Fourth global coral bleaching event: urgent action to […]