It says lake Ontario is sitting a whopping 50 degrees. I imagine the rivers would be warmer than that eh?
Actually, the rivers are COLDER than Lake Ontario. Warmer than they’d normally be, but the water temp in most rivers is dropping quite fast. The Gull, because its watershed is very close to the river, may be 5C or something close to that.
Lake Ontario is a HUGE body of water, very deep, and never freezes. You can’t make comparisons to that with a tiny river like the black.