Surface areas of weed have been noticed growing in several areas around the lake. The exact cause of the growth has not been determined but could be contributed to the very warm water temperature coupled with the lack of rainfall/ flushing of the lake providing an ideal growing environment.
The plant has been identified as the Prickly Water Nymph. It is a native and is beneficial to the lake water quality as plants take up nutrients which are in excess in water tests carried out over several years.
With bird life foraging on the growth as well as the weak stem of the plant, build up of loose material is being washed ashore.
Council will be routinely cleaning the beach areas to remove build-up over the coming days. Currently the limited growth of the plant does not warrant mechanical harvesting of open water areas.