JEQ -- Cole et al. 33 (1): 124 Figure IG2

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Fig. 2. (a) Wastewater as a percentage of total N load modeled with the N-loading model of Valiela et al. (1997)(2000) vs. ${delta}$ ¹⁵N of all species from all ponds and estuaries of study. (b) Water-column dissolved inorganic nitrogen (DIN) concentrations vs. ${delta}$ ¹⁵N of all species from all ponds and estuaries of study. ${delta}$ ¹⁵N values are means of all sampling dates, and error bars represent standard error.