The effect of the algal bloom on Lakes Hayes water quality is
a community issue, the Otago Regional Council's hearing panel
was told last week.
The Friends of Lake Hayes group made a submission to the
council's draft annual plan and spokesman Kerry Dunlop asked
the council to support the group's efforts to have more
research done into the algal blooms.
''It's not just those who reside around Lake Hayes who are
concerned about the water quality. This is a community issue
and the condition of the lake has wider impact than just the
residents,'' Mr Dunlop told the panel, which met in Cromwell
The group has asked for council support in seeking Central
Lakes Trust funding for a deep water monitoring buoy. The
application might be made in conjunction with the Guardians
of Lake Wanaka and Lake Hawea, as those lakes ''would also
benefit from the information from having deep water
monitoring buoys installed'', Mr Dunlop said.
Before any cost-effective method could be applied to reduce
the level of algal blooms in Lake Hayes, more study was
required. The group has sought council funding towards
research by a University of Otago student into the issue.
The group was formed seven years ago because of concerns
about Lake Hayes water quality and had about 50 members, Mr
Dunlop said. His association with the lake spanned more than
The lake's fishery values were also under threat, he said.
''There are some fish being caught in the lake, but not
Although the bloom cleared in 2010-11, it was back this year,
Mr Dunlop said.
An approach was made to the trust about funding a deep-water
monitoring buoy in 2009, but the trust said it was ''highly
unlikely'' to support any grant application because research
was a core responsibility of the regional council. However,
he believed there might be a ''change of heart'' by the
The Guardians of Lake Wanaka also submitted to the annual
plan saying the plan did not adequately address the needs and
requirements of deep-water lake management in the upper
It asked the council to support groups seeking funding to
develop a southern lakes management plan. The use of
deep-water monitoring buoys to collect data would be one
element of the plan.
The guardians would seek funding from trusts but recommended
the council own any capital equipment, such as the buoys, and
take responsibility for maintenance, as the data gathered
would be of benefit to the council.
The council's annual plan attracted a total of 55 submissions
and the council heard from submitters last week in Cromwell
and in Dunedin. It has yet to announce its decisions.