Fig. 7

Differential metabolite profiles in the muscle tissue of olive flounder across low and high temperature treatments. This heatmap analysis illustrates the relative intensity of metabolites that show significant differences in abundance. Each row corresponds to a specific metabolite, with the names labeled on the right. Original values are ln(x + 1)-transformed. Rows are centered; unit variance scaling is applied to rows. Both rows and columns are clustered using correlation distance and average linkage. The color gradient from red to blue across the map indicates the level of metabolite intensity, with red representing high intensity (or higher relative abundance) and blue indicating low intensity (or lower relative abundance)