Fig. 6
From: Radiocarbon evidence of river transport and food web uptake of old carbon in Lake Athabasca, Canada
Radiocarbon content (fraction modern carbon, FMC) of plankton, fish and colonial waterbirds from aquatic food webs of the Athabasca River, Peace-Athabasca Delta (PAD), and Lake Athabasca. Note that biota from Lake Athabasca are separated by western (W.) and eastern (E.) basins. Shiner species were analyzed for small-bodied preyfish and eggs were analyzed for Common Tern (PAD), Caspian Tern (Lake Athabasca) and Herring Gull (Lake Athabasca). Sample sizes are in parentheses.
