Figure 1

Concentrations of dissolved organic carbon (DOC) of the control sites, effluents and downstream of the aquacultures of the four sampling sites (A). Fluorescence intensities (Fmax values, Raman units) of the parallel factor analysis (PARAFAC) components of the control sites, effluents and downstream of the aquacultures of the four sampling sites (B–E; Trp: tryptophan-like, Tyr: tyrosine-like, HS, HS2: humic acid-like).