There have been calls for taskforce to address the current crisis affecting Lough Neagh.
SDLP Mid Ulster councillor Malachy Quinn accused the various departments and statutory agencies responsible for Ireland's largest freshwater lake of "passing the blame" for its deteriorating condition.
No single department has oversight of the lough, while the bed is owned by the Earl of Shaftesbury.
In recent months Lough Neagh's waters have become clogged with blue-green algae, the result of years of pollution by agriculture and sewage, triggered by warm weather and exacerbated by the presence of invasive zebra mussels.
Mr Quinn said the current situation was "critical"
Read more: Lough Neagh could take two decades to return to 'good' ecological status, agency warns
"I want to see all of the parties involved come together around one table and discuss the issues with the lough," he said.
"The best way to do this is through a taskforce involving our local councils, NI Water, the Northern Ireland Environment Agency, Lough Neagh Partnership and the Shaftsbury Estate."
He said the lack of a Stormont executive would "hamper our efforts to address these problems in the long-term".
Mr Quinn also highlighted recent delays dredging the mouth of the Blackwater River in the south west of the lough.
Boat owners are expected to hold a protest on the lough on Sunday to highlight the build-up of silt just off-shore from Maghery in Co Tyrone.
It is understood that funding is in place for the dredging but that there are delays in carrying it out.