Archive for featured

Lake Winnipeg fish species in ‘grave peril’ due to mismanagement, wildlife group says

Oct. 22, CBC News:

Some Lake Winnipeg fish species are on the brink of extinction due to “decades of mismanagement” of the commercial fishing industry, says the Manitoba Wildlife Federation.

“The issue of declining fish stocks in Lake Winnipeg is a direct result of commercial fishing policies that are not based on science,” said Brian Kotak, managing director of the wildlife federation.

“The harvest levels are unsustainable.”

Commercial fishers are allowed to catch a quota of any of the three main species — walleye, sauger and lake whitefish.

That system encourages intense fishing pressure on whichever species is most in demand, which has meant a heavier focus on walleye for many decades due to market prices, said the federation. Read more.

Event: Disentangling the Impacts of Climate Change and Human Interventions on the Hydrology of Key Canadian Watersheds

This presentation will explore climate change and flow regulation impacts on daily and annual river discharge variations and trends into Hudson Bay, the Nechako and Fraser River Basins over the past half-century or so. The first part of the presentation will focus on the 3.7 million km2 Hudson Bay drainage basin for which daily observed streamflow data from the Water Survey of Canada, Manitoba Hydro, Ontario Power Generation and Hydro-Québec for 21 rivers were used to analyze the basin from 1960 to 2016. Decadal hydrographs were developed to assess the changing hydrological regimes in both regulated and unregulated sub-basins and spectral analyses are used to infer the dominant modes of temporal variability on the river discharge input to Hudson Bay. While the unregulated systems exhibit signals of climate change, these remain secondary relative to flow regulation even at the larger Hudson Bay drainage basin scale. More information and registration.

Sewage S.O.S. Aging wastewater infrastructure is putting our lakes at risk

Check out this fantastic series of articles from the Lake Winnipeg Foundation – April 9, 2018

Out of sight, beneath the ground and behind the walls of industrial plants, a national crisis is growing.

Water and wastewater systems make up approximately 30 percent of Canada’s municipal infrastructure – and, across the nation, these systems are in serious trouble: crumbling due to age, chronically underfunded and increasingly inefficient.