The Cheewaht Lake watershed provides a home for dense and rare biodiversity.
Off the rugged west coast of Vancouver Island, inland from the West Coast Trail, is a quiet and remote lake brimming with vibrant ecosystems. From trumpeter swans to black bears, the Cheewaht Lake watershed provides a home for dense and rare biodiversity.
Cla-oose Riverkeepers Historically, the village of Cla-oose managed the salmon population traveling to Cheewhat Lake, and further upstream to spawn. “[They had] a certain family or combination of families that would actually manage the fishery,” continued Sieber. “They just managed it for the benefit of all, and for the fishermen. They weren't allowed to overfish it.”
“You're taking water that would have been more concentrated to transport sediment, and now you're losing that because it's going elsewhere,” said Wright. “There's all these things that get layered on that make incubation success very difficult.” “[It] was a real wake up, then the populations were at high risk of being extirpated,” noted Wright, reflecting upon 2014.
Parks Canada received a letter from Ditidaht nation urging them to address restoration in the creek, said Yuri Zharikov, an ecologist for Pacific Rim National Park Reserve. The regions that had been previously harvested, causing impacts in the Cheewaht Lake watershed, are no longer being logged, said Ryan Abbott, a registered professional biologist at M.C. Wright Associates.
The team removed a total of 3,206 square metres of gravel, which is over ten times the capacity of the sediment basins at the top of S-2. In phase two, which occurred in 2021, the team focused on improving the flow splitter, removing features that contributed to blockages, and anchoring woody debris along the streams.
The fluvial process, a healthy system The consistent delivery of gravel that continues from the sediment trap about one kilometre upstream from the anadromous barrier is what made this restoration project particularly complicated, said Abbott. The flow splitter, at the confluence of S-1 and S-2, has a V shape to it in order for woody debris to deflect into either stream and continue traveling, said Wright.Salmon returns According to the Government of Canada Website, in October 2020 salmon started returning to the Cheewaht Lake watershed to spawn in the streams.
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