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Environment committee On the Experimental Lakes, we have had some scientific involvement over the years, but it has been led through Fisheries and Oceans. A lot of the scientific effort has come through that department. A lot of our scientific effort on nutrients in the last 10 years, or probably 20
February 13th, 2014Committee meeting
Dr. Patricia Chambers
Environment committee It's related to that, yes. That's consuming some of the oxygen.
February 13th, 2014Committee meeting
Dr. Patricia Chambers
Environment committee Yes, changes to the oxygen or the extent of the oxygenated zone can affect the fish.
February 13th, 2014Committee meeting
Dr. Patricia Chambers
Environment committee It can. I really can't speak to the details of that, but it affects the zonation of the lake.
February 13th, 2014Committee meeting
Dr. Patricia Chambers
Environment committee We collect sediments routinely for both analysis of contaminants as well as nutrients to look at the oxygen demand of the sediment. One of the concerns is that we've had nutrients coming into these lakes...well, they come in naturally so they've been coming in since geologic time
February 13th, 2014Committee meeting
Dr. Patricia Chambers
Environment committee I was simply going to say that we have two what we call master stations for atmospheric deposition monitoring, and maybe eight or ten others around the edge of the lake and in the watershed. Those are paralleled by similar stations on the U.S. side so that we have good estimates
February 13th, 2014Committee meeting
Dr. Patricia Chambers
Environment committee That's correct. They're experiencing near record lows in Georgian Bay.
February 13th, 2014Committee meeting
Dr. Patricia Chambers
Environment committee What we've seen is that with the water levels going down, the temperatures in the summer and the slight increase in temperatures is driving those warmer waters down deeper into the water column, so to speak. That collapses that narrow cold band on the bottom and makes it more sha
February 13th, 2014Committee meeting
Dr. Patricia Chambers
Environment committee Maybe I'll start by being a little bit technical, but then I'll bring it to a higher level. Basically, as scientists, we look at dissolved and particulate phosphorus. These are technical terms; it depends on what passes through one of our laboratory filters, a very fine filter,
February 13th, 2014Committee meeting
Dr. Patricia Chambers
Environment committee There are still a number of questions about that one. Part of it seems to be changing farm practices. Initially we used farm practices where there was a lot of tillage on the land, and that tillage resulted in the soil particles being loosened. When we had a heavy snowfall and t
February 13th, 2014Committee meeting
Dr. Patricia Chambers