Nearly 40 years ago, the species was the first fish in Canada to be assessed as endangered by the Committee on the Status of Endangered Wildlife. The whitefish faces several threats including warming waters and invasive smallmouth bass and chain pickerel introduced into the watershed.
Nature Conservancy of Canada touts plan to protect 5,000 square km of Prairie grasslands
"They provide a lot of what we call ecosystem services," he said. "So, they provide a lot of benefit to everyday Canadians' lives, even if you don't live or work in the grasslands." They store and filter water, preventing both floods and droughts. They improve water quality. They keep soil in place, because of extensive root networks, so there's less erosion along lakes and rivers.