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 15 benchmarks together — the OptimalRange form drives the primary score, while 14 guard(s) constrain the result.
Evidence & Context
A conservative upper detrimental threshold is set at >50 NTU. While fish may survive short-term exposure to higher levels, a system operating consistently above 50 NTU is no longer a high-health, controlled environment.
Upper detrimental threshold for water turbidity indicating the maximum acceptable turbidity level in a managed aquaculture system.
This benchmark defines the maximum acceptable water turbidity level in aquaculture systems within the Arid Inland Floodplains & Ephemeral River Systems biome. Turbidity above 50 NTU indicates significant management failure, increasing disease risk and physiological stress for aquatic organisms.
Exceeding 50 NTU indicates failure of solid waste removal, increased disease risk, and physiological stress in fish.
Sources (1)
Best Pratice Environmental Management Guidelines for Recirculating Aquaculture Systems
View SourceSupporting Sources (2)
Additional references from the underlying research that informed this benchmark.
NSW Land Based Sustainable Aquaculture Strategy
View SourceThe effects of turbidity, prey density and environmental complexity on the feeding of juvenile Murray cod Maccullochella peelii | Request PDF - ResearchGate
View Source