WaterNSW has issued a Red Alert warning for high levels of potentially toxic algae in the Shoalhaven River from the boat ramp near Nowra Bridge downstream to the mouth of the river.
The warning is due to the detection of Alexandrium minutum, which can produce harmful toxins.
The Red Alert warning will remain in place until monitoring confirms that the risk is sufficiently diminished.
Recreationally harvested shellfish in these areas should not be used for human consumption due to the risk of Paralytic Shellfish Poisoning.
People should not eat bivalves (such as pippies or mussels) or crayfish from Red Alert warning areas.
Before consumption, any fish caught should be cleaned and washed thoroughly in uncontaminated water and any internal organs disposed of appropriately.
Recreational restrictions are also advised.
People should avoid recreational activities such as swimming, water skiing, canoeing, and any other activity that brings them into contact with this waterbody until the
red alert warning is lifted.
In some cases, the health impacts of marine or estuarine species is largely unknown.
People who suspect they have been affected by algal blooms should seek medical advice.
Marine and estuarine blooms will often move with the wind and tides which means the bloom may present at different locations along the river.
Updates and information about blue-green algae blooms and red level warning areas can be obtained by visiting www.waternsw.com.au/algae or calling 1300 662 077.
