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Trophic state index

The Trophic State Index (TSI) is a classification system designed to rate water bodies based on the amount of biological productivity they sustain. Although the term "trophic index" is commonly applied to lakes, any surface water body may be indexed.

Products, Trophic classifications & Carlson's Trophic State Index

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Overview

Carlson's Trophic State Index

Trophic classifications

Trophic index drivers

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Trophic state index

Nodes42
Edges41
Triples25
Avg. degree1.95
Density0.047619
Components1

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Trophic state index

Top relations

related to Carlson's Trophic State Index · 12
Trophic state index → According, Agency, Because, Carlson, Carlson Index, Carlson's, It, Lakes, Robert Carlson, The, United States Environmental Protection, US EPA

Important terminology Word statistics

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Important terminology

water trophic lakes index oligotrophic may algal phosphorus eutrophic biomass oxygen mesotrophic lake productivity bodies body nutrients tsi nitrogen biological

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
nitrogeninstance ofNutrients0.80text
phosphorus tend to be limiting resources in standing water bodiesinstance ofNutrients0.80text
so increased concentrations tend to result in increased plant growthinstance ofNutrients0.80text
followed by corollary increases in subsequent trophic levelsinstance ofNutrients0.80text
agriculture in the watershedinstance ofas can arise from human activities0.80text
lake troutinstance ofoligotrophic lakes often support fish species0.80text
which require coldinstance ofoligotrophic lakes often support fish species0.80text
well-oxygenated watersinstance ofoligotrophic lakes often support fish species0.80text
agricultural runoffinstance ofNutrients carried into water bodies from non-point sources0.80text
residential fertilisersinstance ofNutrients carried into water bodies from non-point sources0.80text
and sewage will all increase the algal biomassinstance ofNutrients carried into water bodies from non-point sources0.80text
and can easily cause an oligotrophic lake to become hypereutrophic.Freshwater lakesAlthough there is no absolute consensus as to which nutrients contribute the most to increasing primary productivityinstance ofNutrients carried into water bodies from non-point sources0.80text

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