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Canonical correspondence analyses (CCA) of the eukaryotic phytoplankton (a), bacteria (b), and archaea (c) community composition in relation to environmental factors. The communities are color coded according to the month of sampling. The arrows represent the different environmental factors (T: temperature, DL: day length, NH4: ammonium, NO3: nitrates, NO2: nitrites, PO4: phosphates, SIOH4: silicates, S: salinity)
