Trophic level index

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The trophic level index is used in New Zealand as a measure of nutrient status of lakes.[1] It is similar to the trophic state index but was proposed as alternative that suited New Zealand.[2]

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External links[edit]


  1. ^ New Zealand Ministry for the Environment - Trophic Level Index for lakes
  2. ^ Burns, Noel; Graham Bryers; Eddie Bowman (March 2000). Protocol for Monitoring Trophic Levels of New Zealand Lakes and Reservoirs (PDF). Retrieved 2009-11-11.