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 20 benchmarks together — the OptimalRange form drives the primary score, while 19 guard(s) constrain the result.
Contributing Benchmarks
Evidence & Context
Therefore, a lower critical threshold exists, likely in the range of < 2 NTU, below which negative physiological effects may occur.
Lower critical turbidity threshold below which negative physiological effects may occur in cultured species.
Lower critical turbidity threshold indicating stress onset in fish species adapted to turbid environments.
Research shows fish species experience physiological stress below this turbidity level, compromising welfare and productivity.
Sources (2)
Effects of turbidity, temperature and predation cue on the stress response of juvenile delta smelt | Conservation Physiology | Oxford Academic
View SourceDevelopment of regional water quality and catchment guidelines for the conservation of aquatic ecosystems - NSW Environment Protection Authority
View SourceSupporting Sources (2)
Additional references from the underlying research that informed this benchmark.
NSW Land Based Sustainable Aquaculture Strategy, accessed July 21, 2025
View SourceAustralian and New Zealand Guidelines for Fresh and Marine Water Quality (2000)
View Source