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Composition, abundance and biomass of phytoplankton
Composition and abundance of other aquatic flora
Composition and abundance of benthic invertebrate fauna
Composition and abundance of fish fauna
Morphological conditions
depth variation
quantity, structure and substrate of the bed
structure of the intertidal zone
Tidal regime
freshwater flow
wave exposure
General
Transparency
Thermal conditions
Oxygenation conditions
Salinity
Nutrient conditions
Specific pollutants
Pollution by all priority substances identified as being discharged into the body of water
Pollution by other substances identified as being discharged in significant quantities into the body of water