The Environment Protection Agency (EPA) has issued a statement on the microalgae bloom, Karenia mikimotoi, which has been affecting the state’s coastline since mid-March.

It says the naturally occurring bloom continues to affect beaches on the Fleurieu Peninsula, and Kangaroo Island and is increasingly prevalent along the southern coast of the Yorke Peninsula.

“This is a dynamic situation as the bloom travels depending on weather and water conditions and the impact on people in these areas can therefore be unpredictable.

“The event is likely being driven by an ongoing marine heatwave impacting southern Australian waters, with water temperatures currently 2.5C warmer than usual, as well as relatively calm marine conditions with little wind and small swells.

The bloom has led to significant marine life deaths and may cause mild health symptoms such as skin, eye or throat irritation in some individuals, particularly after exposure to discoloured or foamy water or sea spray.

There is currently no treatment or method to remove the bloom. It is expected to ease when weather and ocean conditions change.

Such changes would usually be expected to take place by late April and there are fears in the community that the ongoing marine heatwave condition may adversely affect the upcoming whale season.

SA Health has advised people to avoid contact with discoloured, foamy or smelly water.

Fish deaths should be reported to Fishwatch on 1800 065 522, while injured or deceased marine mammals can be reported to Parks SA on 8207 7700.

Keep up to date with SA Health water quality alerts online. For more information on algal blooms, visit the EPA website.