Information

Ecological parameter:  trophy TDI

Parameter group: trophy related parameters

Explanation:
The Trophic Diatom Index (TDI; Kelly & Whitton, 1995) is an index for monitoring the trophic status of rivers based on diatom compostion. Values taken from OMNIDIA (Lecointe et al., 1993).
Kelly, M.G. & Whitton, B.A. (1995): The trophic Diatom Index, a new index for monitoring eutrophication in rivers. J. Appl. Phycol. 7: 433-444.
Lecointe, C., Coste, M. & Prygiel, J. (1993): OMNIDIA software for taxonomy, calculation of diatom indices and inventories management. Hydrobiologia 269/270: 509-513.

Abbreviations:
Category nameAbbreviationExplanation
trophic indicatorindicatortrophic indicator
trophic weightweighttrophic weight
Assigned taxa for each higher systematic unit
TaxagroupNumber of assigned taxa / total number of taxa - percentage
Surirellacees1408 / 6949 - 20.2%