Overall change in this indicator is shown as a trend line, while the map shows indicator values at surveyed reef sites. Select a year from the time series to dive into how reef condition varies across this location over time.
Overall change across this Network is shown as a trend line, with MPA-level trends shown where data are sufficient. The map shows indicator values at surveyed reef sites. Select a year to explore reef conditions across the Network over time, or select an MPA to view its time series.
Overall change across this MPA is shown as a trend line, with zone-level trends shown where data are sufficient. The map shows indicator values at surveyed reef sites. Select a year to explore reef conditions across the MPA over time, or a zone to view its time series.
An indication of the overall health of reefs in different regions. The values tell you the percentage of survey sites in each region that rank among the healthiest 25% of surveyed reefs, worldwide. Higher values generally indicate healthier reefs.
Average indicator values for each reef site globally, based on all surveys conducted over time.
Select a location marker to dive into overall reef condition, location-wide trends over time, and how conditions at individual reef sites vary from year to year.
Select an MPA marker to dive into overall reef conditions inside the MPA, MPA-wide and zone-level trends over time, and how conditions at individual reef sites vary from year to year.
Explore indicator trends over time for locations where surveys have been undertaken for three or more years. More locations will appear as divers continue to collect data on the condition of the world's reefs.
Explore indicator trends over time for marine protected areas (MPAs) and MPA networks where surveys have been undertaken for three or more years. More MPAs will appear as divers continue to collect data on the condition of the world's reefs.