Where has the Crown of thorns starfish been recorded?

Acanthaster planci occurrence evidence comes from 517 records in 43 countries and territories, from 1883 to 2026. Most records come from Mexico.

• 517 records
• 43 places
• 65 years recorded
• Asteroidea class

Observation evidence passport

Compare this animal’s observation pattern

When it is recorded

Peak month: May. Records cluster in the months an animal is present and being looked for, so a summer peak can reflect observer effort as much as the animal.

Records over time

Recording effort has risen steeply almost everywhere since the 1990s, so a rising line usually shows more observers rather than more animals.

Where Crown of thorns starfish has been recorded

The countries below show where occurrence evidence exists for Crown of thorns starfish. They do not define a complete habitat range: survey effort differs by place, and historical or one-off records can appear alongside repeated presence.

Showing the top 40 of 43 places.