Parks Canada has announced it is removing a curtain deployed last month in an effort to contain zebra mussels to one corner of Clear Lake.
The curtain, which was weighted to the bottom of the lake, was positioned from Boat Cove to Wasagaming's main beach.
But it was recently dislodged by winds and high waves.
Parks Canada officials say the curtain was damaged and is no longer an effective means of containment and cannot be repaired or replaced this fall.
They add the private contractor that provided and installed the curtain will be responsible for its removal.
Clear Lake will continue to be monitored for mussel DNA, larvae, and adult mussels until ice forms this winter.
The monitoring will help determine whether plans for a potential eradication or control treatment using potash are feasible.
Temporary watercraft bans at Clear Lake remain in place and Boat Cove remains closed to the public