Jennifer Leman, December 14, 2017
Northern Canada is speckled with lakes. And those lakes tell stories, according to Tamlin Pavelsky, an associate professor at the University of North Carolina at Chapel Hill.
Pavelsky and other researchers are using data from a series of flights flown for NASA’s Arctic-Boreal Vulnerability Experiment (ABoVE) to understand how permafrost—which rests beneath roughly 50% of Canada and 80% of Alaska—affects the lakes that lie above it.
The goal is to understand “whether there’s a relationship to water levels in lakes and whether or not there’s permafrost underneath them,” said Pavelsky. He presented the team’s research methods in a poster session on 12 December at the American Geophysical Union’s 2017 Fall Meeting in New Orleans, La.
As you are likely aware, the province recently launched their Made in Manitoba Climate and Green Plan. One of the pillars of this plan includes water. Information and proposed suggestions on how to address water issues can be found on pages 9, 33-49 and 52. You can download a copy of the plan here – Made-in-Manitoba Climate and Green Plan and provide your comments regarding how the plan addresses water issue in the province here – views, ideas, and suggestions
Aug. 15, CBC News:
A new study out of the University of Manitoba shows some lake predators are changing their behaviour due to climate change, which may have a wide-ranging effect on aquatic ecosystems.
Researchers watched the feeding habits of lake trout at the IISD Experimental Lakes Area in northwestern Ontario over an 11-year span and found the fish can quickly adapt their behaviour — moving to deeper and cooler parts of the lake to feed — as water temperatures rise.
Matthew Guzzo, a PhD candidate in the U of M’s department of biological sciences and lead author of the study published in the proceedings of National Academy of Sciences, said as temperatures rise, lake trout move from shallow, more productive waters to the deep part of the lake where water is cooler but food is of a lower quality. Read more.