Global Coral Reef Monitoring Network

Providing scientific information on the status and trends of coral reef ecosystems worldwide

Anett Szaszi | Ocean Image Bank

About

The Global Coral Reef Monitoring Network (GCRMN)​ is an operational network of the International Coral Reef Initiative (ICRI) aiming to provide the best available scientific information on the status and trends of coral reef ecosystems for their conservation and management. The GCRMN is a global network of scientists, managers and organisations that monitor the condition of coral reefs throughout the world, operating through 10 regional nodes.

Regions

Learn more about each GCRMN region by clicking on the map below.

Status of Coral Reefs of the World: 2025 report

The flagship product of the GCRMN is the Status of Coral Reefs of the World report that describes the status and trends of coral reefs worldwide. The seventh and latest edition was published in 2026:

10

Regions

40+

Years of Data

87,299


Surveys

21.1M

Observations