Trophic state definition

Trophic state means a classification of the productiv- ity of a lake ecosystem. Lake productivity depends on the amount of biologically available nutrients in water and sedi- ments and may be based on total phosphorus (TP). Secchi depth and chlorophyll-a measurements may be used to improve the trophic state classification of a lake. Trophic states used in this rule include, from least to most nutrient rich, ultra-oligotrophic, oligotrophic, lower mesotrophic, upper mesotrophic, and eutrophic.
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Trophic state means the level of biological productivity or amount of plant biomass within a water body at the time of measurement.
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Trophic state means a classification of the productivity of a lake ecosystem. Lake productivity depends on the amount of biological- ly available nutrients in water and sediments and may be based on to-
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Examples of Trophic state in a sentence

  • Trophic state determinations were calculated only for Station PR-3 within the reservoir.

  • Trophic state determinations were calculated only for Station WA-2 within the reservoir.

  • It is important to recognise that water quality measurement parameters are not always the same between EO and in-situ campaigns: • Turbidity – frequently measured in-situ using a Secchi disc or a turbidity meter (absorbance), compared with reflectance in EO data • Trophic state (Chlorophyll-a) – measured in relation to reflectance in EO campaigns, but through fluorescence (in sensors) or absorption (in laboratory analyses).

  • Trophic state determinations were made using criteria defined by Carlson and EPA (1983) and calculated only for Station BZ-6 within the deepest portion of the reservoir.

  • Trophic state in clear and colored, soft and hardwater lakes with special consideration of nutrients, anoxia, phytoplankton and fish.

  • It is the responsibility of each team leader to provide the leadership necessary to increase team performance.

  • The hall is nearby, provides a space that is accessible and is a suitable size for the increased number of electors.

  • Trophic state indices (TSIs) are calculated for lakes on the basis of total phosphorus (TP), chlorophyll a (Chl-a) concentrations, and Secchi disc (SD) transparencies.

  • Trophic state reflects the biological response to several factors, including nutrient effects on phytoplankton chl.

  • Trophic state of clear and colored, soft- and hard-water lakes with special consideration of nutrients, anoxia, phytoplankton and fish.

Related to Trophic state

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