Browsing HELCOM Manuals and Guidelines by Subject "Secchi disk"

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    • Guidelines for monitoring of water transparency (Secchi depth). 

      HELCOM (HELCOM, Helsinki, Finland, 2017)
      Water transparency serves as an index for the trophic state of a water body. It reflects eutrophication through changes in the phytoplankton abundance; increase in the ambient nutrient status in the water leads to higher ...