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Table 1 Categories used for the classification of the Trophic State Index

From: Integrated approach to the understanding of the degradation of an urban river: local perceptions, environmental parameters and geoprocessing

Category

Trophic State Index (TSI)

Ultraoligotrophic

TSI ≤ 47

Oligotrophic

47 < TSI ≤ 52

Mesotrophic

52 < TSI ≤ 59

Eutrophic

59 < TSI ≤ 63

Supereutrophic

63 < TSI ≤ 67

Hypereutrophic

TSI > 67

  1. Categories used for the classification of the Trophic State Index. Source: CETESB (2013)
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Journal of Ethnobiology and Ethnomedicine

ISSN: 1746-4269

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