August 14, 2018
Air curtain aids Tutira clean-up
In preparation for the warmer southern months ahead, Hawkes Bay Regional Council has turned back on an air curtain in Lake Waikopiro designed to address algal blooms and fish deaths in Lake Waikopiro and Lake Tutira.
The curtain is created by air pumped through a 50-metre perforated pipe tethered close to the bottom of lake and across the deepest part.
It increases oxygen levels at all depths throughout the lake by creating a circulation current, much like bubblers in a fish aquarium.
It's part of the $3.5 million Te Waiū o Tutira restoration project run by the council, Maungaharuru-Tangitu Trust, the Ministry for the Environment and residents living near Lake Tutira, which in recent yeqrs has become extremely polluted..
Year two of the project will include building sediment traps for the Te Whatu whewhe and Kahikanui catchments to stop sediment getting into the lakes, and developing an integrated management plan and farm management plans for landowners.
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