This PDF file includes:

• Supplementary Materials and Methods
  
• eq. S1. Calculation of MeHg concentration (pmol g⁻¹ d.w.) in sediment.
  
• eq. S2. Calculation of MeHg concentration (pmol g⁻¹ d.w.) in biota.
  
• fig. S1. Schematic illustration of the mesocosm experiment setup.
  
• fig. S2. Pelagic biological productivity parameters.
  
• fig. S3. Total ²⁰⁴Hg and Me¹⁹⁹Hg concentrations in water.
  
• fig. S4. Projected changes in runoff following climate scenario RCP8.5 (IPCC) (7).
  
• fig. S5. Sedimentation rate of NOM.
  
• table S1. Schematic description of the mesocosm experiment treatments.
  
• table S2. Chemical speciation calculations for Hg^II and MeHg in the mesocosm water phase.
  
• table S3. Statistics for the treatment effects from repeated-measures ANOVA for eight response variables (Table 1) in mesocosm.
  
• table S4. Input data for the Hg mass balance calculations based on eqs. S1 and S2.
  
• table S5. Nutrient addition scheme for the mesocosm water phase.
  
• References (61, 62)

Download PDF