reasonably large rivers, lakes, and a beach.
Many anglers tell me science has been slow with regard to solutions for didymo infestations and algal blooms – the bane of anglers at so many rivers when flows are reduced over summer while other rivers run dry during drought periods.
To be fair, science has been accumulating facts and appraising test regimes for some years, and given time and funding may find solutions to algal blooms.
But in terms of water issues in Canterbury the time may be running out.
Otago, Canterbury, and Marlborough regional councils have each issued health warnings this season, and so, too, Wellington and Taranaki. Algal blooms are indeed a widespread problem.
Scientists from the University of Waikato and volunteers recently scoured Lake Rotokare for two days and believe perch may be responsible for the toxic blue-green algae known as cyanobacteria.
They say these fish eat microscopic animals (zooplankton), which affect the foodchain and water quality and if seriously reduced the
Letting it go: The 32-cumec spill through the Opuha Dam control gate during the test period.