Damaged curtain in Clear Lake to be removed
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Hey there, time traveller!
This article was published 10/09/2024 (413 days ago), so information in it may no longer be current.
Parks Canada is ditching the containment curtain on Clear Lake in Riding Mountain National Park, it announced in a press release Monday.
The curtain, which was installed in Clear Lake in early August, was put in place in an effort to contain the possible spread of zebra mussels after the invasive species was found in Boat Cove last November and again this July.
Parks Canada said the curtain is damaged and is no longer an effective means of containment, the release said, adding that the curtain cannot be repaired or replaced this fall.
For the rest of the 2024 open water season, Parks Canada said it will continue monitoring for environmental DNA, veligers (zebra mussel lareve), and evidence of the mussels. The monitoring will continue until ice forms and will help determine whether Parks Canada makes plans to use potash in the lake to destroy the mussels, the release said.
Potash is a molluscicide approved for use by Health Canada.
The private contractor that provided and installed the curtain will be responsible for its removal.
The curtain encompassed Boat Cove, the pier near the Wasagaming Visitor Centre and the Clear Lake Marina. Installation of the curtain finished on Aug. 6, but heavy winds and waves over the next couple of days caused it to drift toward the shore in several locations.
When eDNA was detected from a sample taken near the Clear Lake Marina late last month, Parks Canada revoked permission for the Martese tour boat to operate.
The temporary watercraft management measures for Clear Lake remain in place and Boat Cove remains closed to public access.
A clump of 48 live zebra mussels were found there in November — the first discovery of its kind in the national park.
» The Brandon Sun