Blue-Green Algae

Blue-green algae (cyanobacteria) is a type of bacteria with traits of both bacteria and algae. It can be found in almost all water systems, and can appear individually or in a group.

In appropriate conditions, blue-green algae can grow rapidly and form visible blooms, or scums. Blooms generally occur during summer and autumn, when nutrient levels are high, temperatures are warm, and the water is relatively still. Weather conditions, nutrient levels and water flow will affect how long a bloom lasts.

Water affected by blue-green algae may not be suitable for drinking, recreation or agricultural use.

Find out more about blue-green algae on the Goulburn-Murray Water website