Data sets used for the correlation matrixes shown in Fig 6 as well as S10 and S11 Figs.

Of the chosen variables, chlorophyll-a and all POM-related parameters depict depth-integrated values. The δ13C, δ15N, and C:N values from all other food web members (except POM) represent average values from the respective sites. Gaps in the data set are highlighted in white. Gaps at the northern (station 1) or southern (station 9) extremities of the lake were filled by assuming the same value as from the neighbouring site. Other gaps were filled by calculating the average value between the two neighbouring sites. Rows (i.e. stations) used for calculating the correlation matrixes are highlighted in bold black font. (XLSX)