- Thursday 02 October 2008
The Sunshine Coast Council plans to reopen the entrance to Currimundi Creek late next week after tests found the temporary closure of the lake has reduced the local biting midge menace by more than 90%.
Council’s environment portfolio holder, Division Three Councillor Keryn Jones, said the lake’s closure – a key part of Council’s Biting Midge Control Program – was timed to flood the midge habitat and disrupt the breeding cycle as much as possible.
“Council’s testing has found a steady and significant decline in midge numbers,’’ Cr Jones said.
“This week’s results found an average of only 21 larvae per square metre, a reduction of 91% on the average of 219 larvae per square metre that were present when the lake was closed five weeks ago.”
Cr Jones said this was the first time Council took on the challenge of closing the lake at high tide which meant the midge habitat was more quickly flooded.
“This has helped deliver even better results in a shorter period of time than last year’s successful Midge Control Program.
“Council now plans to reopen the lake late next week, weather permitting. That should mean a further reduction in midge numbers.”
Cr Jones said the environmental impact from closing the lake is expected to be very low but the situation will be closely monitored by Council staff.
“The lake has remained open for swimming and Council officers have monitored the water quality very closely. In fact, the higher than usual water level means it has been a very popular spot with paddlers and swimmers over the last few weeks.
“I shared the concerns of some residents that the high water levels could cause some erosion during and after the closure. We will also watch that very closely.”