Sources,MEANd13C,SDd13C,MEANd15N,SDd15N POM,-16.02888889,1.497242836,11.74777778,2.294366894 Macro,-12.955,2.422893337,15.44642858,0.541158886 Epilith,-7.125555556,3.628946511,16.39888889,0.905848283