BeCA made inquiries with Council over concerns arising from the condition of the lakes at Canavan Gracie Recreational Park. Lilies seem to be encroaching across the lake and there seems to be an outbreak of a weed of some sort.
Council’s response appears below:
Council believes this is one of the worst water plant seasons they have had across the region. The contractors are telling them it is the same in other council regions all across SE Queensland.
The cause may be a warmer than usual winter and lower water levels across the regions along with a build up sedimentation in the catchments. The weed is known as plantis Potomogeton javanicus, formally a species known as Octandrus.
This plant is taking up space left by both the lilies and the ongoing Azolla blooms. The reason the lakes appears so unattractive is that sediment in the under water filaments is being stirred up by the pest fish Tilapia.
Council removed a large number of these fish recently when the pest fish survey was conducted in the Bellvista lakes (and other lakes across the region).
Council will continue to monitor the growth and if it gets worse over time, hand removal is possible, though there are very few if any netters left working for Council.
Council also inspected Bellvista Lake’s pumps recently and appear to be in fine working order.