An adult Irukandji jellyfish (Carukia barnesi) that periodically infests North Queensland beaches and reefs.

Laboratory photograph of an adult Irukandji jellyfish, Carukia barnesi. The bell is approximately 5 mm across. Irukandji periodically infest North Queensland beaches and reefs and it's sting produces life-threatening illness in its victims. A model developed through the project will enable early warning of these influxes.