Public warned to avoid algae at Killarney lake

A section of the shoreline on Killarney’s largest lake is being monitored this weekend after the emergence of an algal “scum” which saw a number of dogs take ill, one of which died.

At least three dogs became ill after coming in contact with the shoreline scum, which is linked to over- enrichment of the lake.

Warning signs were erected on Tuesday asking the public not to touch, swim or drink the water in the area, which is near a popular walkway near Muckross Abbey. Samples were also taken.

The algae has been identified as “oscillataria”, a lakeside scum. The water quality is excellent, the tests have shown.

The dead dog may have had other underlying conditions which were exacerbated by the algae.

Humans are also asked not to come in contact with the scum as it can cause skin conditions.

“We will be monitoring it on a daily basis over the weekend,” said council spokesman Owen O’Shea.

Blue-green algal blooms is a near annual occurrence in Killarney because of decades of overloading of phosphates into the lake. Much of the problem stems from over-loaded and poorly functioning domestic and business septic tanks as well as animal slurry tanks run-off.