Fig. 7. Total amounts of aliphatics (n-C₁₂ to n-C₃₃, pristane, and phytane) relative to hopane and normalized by initial values in oil-spiked control and treated sediments on Days 0, 15, 30, and 45. Mean and standard deviation of duplicates are shown. C, control; Ip, Inipol; Os, Osmocote; SN, soluble nutrients.