TY - JOUR A1 - Zigah, P. K. A1 - Minor, E. C. A1 - Werne, J. P. A1 - Leigh McCallister, S. T1 - An isotopic (Δ14C, δ13C, and δ15N) investigation of the composition of particulate organic matter and zooplankton food sources in Lake Superior and across a size-gradient of aquatic systems JO - Biogeosciences J1 - BG VL - 9 IS - 9 SP - 3663 EP - 3678 Y1 - 2012/09/25 PB - Copernicus Publications SN - 1726-4189 UR - https://bg.copernicus.org/articles/9/3663/2012/ L1 - https://bg.copernicus.org/articles/9/3663/2012/bg-9-3663-2012.pdf DO - 10.5194/bg-9-3663-2012 ER -