I hope it is plankton not strontium 90
Council Coastal Monitoring Team Leader Bruce Howse says the Council has fielded inquiries recently from people concerned at bands of bright pinky, red-orange water in the tide in the Bream Bay area.
However, Mr Howse says it appears the culprit is probably the planktonic organism Noctiluca, which appears on Northland’s east coast every few years about this time.
Warm, calm conditions have contributed to the bloom and the very obvious pink-red colour is caused by pigments within the cell of the organism as it floats on the surface. Noctiluca is also one of many species which can cause phosphorescence in the water at night.
Other planktonic organisms which might also be responsible for the colour are Mesodinium rubrum and Gymnodinium sanguineum.