Results (1) – Eutrophication indicators ΜSFDOSPARHELCOMUNEP/MAPBSCEEA Indicators Common indicators Core indicators Proposed common indicators Indicators in Diagnostic Report, 2010 Indicators Waterborne nutrient inputs Core indicators of nutrient inputs under development Inputs of nutrients from direct (point) sources Atmospheric nutrient inputs 5.1.1 Nutrients concentration in the water column Winter nutrient concentrations Concentration of dissolved inorganic nitrogen Concentration of key nutrients in the water column NO 3 +NO 2 CSI021-Nutrients in transitional, coastal and marine waters Concentration of dissolved inorganic phosphorus PO 4 5.1.2 Nutrient ratios (silica, nitrogen and phosphorus), where appropriate 5.2.1 Chlorophyll concentration in the water column Chlorophyll concentrations Concentration of chlorophyll a Chlorophyll-a concentration in the water column Chlorophyll-a CSI023 -Chlorophyll in transitional, coastal and marine waters 5.2.2 Water transparency related to increase in suspended algae, where relevant Water transparency (Secchi depth) 5.2.3 Abundance of opportunistic macroalgae Considered and adopted by the CBD AG in 2013 7 5.2.4 Species shift in floristic composition such as diatom to flagellate ratio, benthic to pelagic shifts, as well as bloom events of nuisance/toxic algal blooms (e.g.
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