Variables Calcium Label: Ca Definition: the amount of calcium in solution measured in mg/l or ppm Type: Physical quantity Unit: microgramsPerLiter Maximum: Not specified Minimum: Not specified Precision: Not specified Missing values: None specified Variables (legacy): Ca Label: Calcium Definition: The amount of calcium in solution measured in mg/l or ppm. Type: Physical quantity Unit: milligramsPerLiter Maximum: Not specified Minimum: Not specified Precision: 0.00999999977648258 Missing values: NA = , Mg Label: Magnesium Definition: The amount of magnesium in solution. Measured as mg/L or ppm. Type: Physical quantity Unit: milligramsPerLiter Maximum: Not specified Minimum: Not specified Precision: 0.100000001490116 Missing values: NA = , Date Label: Date Definition: The day on which the sample was taken. Type: Date/time Date format: MM/DD/YYYY Missing values: None specified , depth_m Label: Water Depth (m) Definition: Depth of water at which a measurement was taken. Type: Physical quantity Unit: meter Maximum: Not specified Minimum: Not specified Precision: Not specified Missing values: None specified , K Label: Potassium Definition: The amount of Potassium. Measured in mg/L or ppm. Type: Physical quantity Unit: milligramsPerLiter Maximum: Not specified Minimum: Not specified Precision: 0.100000001490116 Missing values: NA = , Na Label: Sodium Definition: The amount of sodium. Measured in mg/L or ppm. Type: Physical quantity Unit: milligramsPerLiter Maximum: Not specified Minimum: Not specified Precision: 0.100000001490116 Missing values: NA = , Cl Label: Chloride Definition: The amount of Chloride. Measured in mg/L or ppm. Type: Physical quantity Unit: milligramsPerLiter Maximum: Not specified Minimum: Not specified Precision: 0.100000001490116 Missing values: NA = , ChlA Label: Chlorophyll A Definition: The amount of Chlorophyll A present. Measured in ug/L or ppb. Type: Physical quantity Unit: microgramsPerLiter Maximum: Not specified Minimum: Not specified Precision: 0.00999999977648258 Missing values: NA = , Phaeophytin A Label: Phaeophytin A Definition: Type: Nominal Missing values: None specified , Silica Label: Silica Definition: Type: Nominal Missing values: None specified , Total Phosphorous Label: Total Phosphorous Definition: Type: Nominal Missing values: None specified , Soluble Phosphorous Label: Soluble Phosphorous Definition: Type: Nominal Missing values: None specified , NO3 Label: Nitrate Definition: The amount of Nitrate. Measured in ug/L or ppb. Type: Physical quantity Unit: microgramsPerLiter Maximum: Not specified Minimum: Not specified Precision: 0.00999999977648258 Missing values: NA = , NH3 Label: Ammonia Definition: The amount of ammonia present. Measured in ug/L or ppb. Type: Physical quantity Unit: microgramsPerLiter Maximum: Not specified Minimum: Not specified Precision: 0.00999999977648258 Missing values: NA = Methods: Nutrient samples were taken at various depths (0-22 m) over 59 dates from 1972-1975. Related sites: South Fishtail Bay - Douglas Lake