Water Turbidity
Benchmark Value
Scoring Curve
This curve shows how a field measurement for this indicator would score across all available benchmark forms in this context. The scoring engine uses 8 benchmarks together — the OptimalRange form drives the primary score, while 7 guard(s) constrain the result.
Evidence & Context
A study examining trait responses along environmental gradients identified a significant ecological tipping point for macroinvertebrate communities, observing a substantial drop in the abundance of tegument-respiring invertebrates at turbidity levels beyond just 5 NTU.
Water turbidity measured as the optical measure of water clarity, quantifying the degree to which light is scattered and absorbed by suspended and dissolved materials.
This benchmark marks the turbidity level beyond which sensitive macroinvertebrate communities begin to decline, indicating ecological degradation.
This threshold marks the beginning of ecological degradation for sensitive macroinvertebrate taxa.
Sources (1)
Determining Tipping Points and Responses of Macroinvertebrate Traits to Abiotic Factors in Support of River Management. Water, 15(8), 1589.
View SourceSupporting Sources (51)
Additional references from the underlying research that informed this benchmark.
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