Chlorophyll a definition

Chlorophyll a means a pigment in green plants including algae. The concentration of chlorophyll-a, expressed in weight per unit volume of water, is a measurement of the abundance of algae.
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Chlorophyll a means the mass of chlorophyll a pigment after correction for phaeophytins.
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Chlorophyll a means one of three green pigments in plant cells, used as a measure of productivity in aquatic environments. Elevated levels of nutrients are usually reflected in corresponding elevations in chlorophyll a.
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Examples of Chlorophyll a in a sentence

  • Primary Productivity, Phytoplankton (Chlorophyll a, Phaeophytin, Population, Species), Zooplankton (Biomass, Population, Species) and Benthos (Biomass, Population, Species).

  • Chlorophyll a (corrected): not greater than 40 ug/l for lakes, reservoirs, and other waters subject to growths of macroscopic or microscopic vegetation not designated as trout waters, and not greater than 15 ug/l for lakes, reservoirs, and other waters subject to growths of macroscopic or microscopic vegetation designated as trout waters (not applicable to lakes or reservoirs less than 10 acres in surface area).

  • Ambient Water Quality Criteria for Dissolved Oxygen, Water Clarity and Chlorophyll a for the Chesapeake Bay and its Tidal Tributaries.

  • Chlorophyll a (corrected): not greater than 40 ug/l in sounds, estuaries, and other waters subject to growths of macroscopic or microscopic vegetation.

  • Ambient Water Quality Criteria for Dissolved Oxygen, Water Clarity and Chlorophyll a for the Chesapeake Bay and Its Tidal Tributaries.

  • During the current YR17 reporting period, DRWW’s monitoring program includes: Water/Sediment sampling and analysis at 73 Monitoring Locations for 2019; Bioassessment monitoring at 31 monitoring locations; Continuous water quality monitoring with data sondes and Chlorophyll a sampling and analysis at 14 Monitoring Locations; and Flow Monitoring data collection at 22 sites.

  • It also affects the length of the recreational season Secchi Disk Transparency (m) Conductivity (µmho/cm) pH Color (true) (platinum color units) Phosphorus (total, mg/l) Nitrogen (nitrate, ammonia, and total (dissolved), mg/l) Chlorophyll a (µg/l) Calcium (mg/l)Determined by measuring the depth at which a black and white disk disappears from sight, the Secchi disk transparency estimates the clarity of the water.

  • Chlorophyll a data shall be corrected for or free from the interference of pheophytin.

  • Chlorophyll a measures increase in relation to algal densities in a water body.

  • Chlorophyll a 1 µg/L Report Chlorophyll a values free from pheophytin and other chlorophyll pigments.


More Definitions of Chlorophyll a

Chlorophyll a means the mass of chlorophyll a
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Chlorophyll a means a green pigment present in all green plants and in cyanobacteria, responsible for the absorption of light to provide energy for photosynthesis.
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Chlorophyll a means a pigment in green plants including algae. The
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Chlorophyll a means a primary pigment in all oxygen evolving photosynthetic organisms and is present in all algae and photosynthetic organisms other than bacteria.
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Chlorophyll a means one of three green pigments in plant cells, used as a measure of productivity in aquatic environments. Elevated levels of nutrients are usually reflected in corresponding elevations in chlorophyll a. [(12)] (17) "Chronic toxicity" means the capacity or potential of a substance to cause deleterious effects in living
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Chlorophyll a means a pigment in green plants including algae. The concentration of chlorophyll-a, expressed
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