Water Nitrate — Benchmark Detail - Nature Index

Benchmark Value

No specific value — see range

Range: 100 to 150 mg/L

Optimal Range: 100 to 150

Direction: Lower is desirable ↓

Form: OptimalRange

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 10 benchmarks together — the OptimalRange form drives the primary score, while 9 guard(s) constrain the result.

Contributing Benchmarks

OptimalRange Primary MaximumOnly Guard MaximumOnly Guard MinimumOnly Guard Point Guard MaximumOnly Guard Point Guard MaximumOnly Guard Point Guard MaximumOnly Guard

Evidence & Context

Indicator Name: Water Nitrate Reference Value: <100 Unit: mg/L Source Title: Nitrification and Maintenance in Media Bed Aquaponics

Metric Definition:

Water Nitrate concentration in Recirculating Aquaculture Systems (RAS) representing a managed operational state balancing system health and fish welfare.

Benchmark Definition:

This benchmark defines the optimal nitrate concentration range for water in aquaculture systems within Australia's Arid Karstic Woodlands & Shrublands, supporting robust fish species health and effective nitrification.

Justification:

Derived by proxy from best-practice Recirculating Aquaculture Systems (RAS), the only viable technology for this water-scarce biome, balancing system health with fish welfare.

Sources (1)

Preview of Nitrification and Maintenance in Media Bed Aquaponics | Oklahoma State University, accessed July 25, 2025,

Nitrification and Maintenance in Media Bed Aquaponics | Oklahoma State University, accessed July 25, 2025, Government

Nitrification and Maintenance in Media Bed Aquaponics | Oklahoma State University, accessed July 25, 2025,

Supporting Sources (32)

Additional references from the underlying research that informed this benchmark.

Preview of (PDF) Eucla Basin and peripheral paleovalleys - ResearchGate, accessed July 25, 2025,

(PDF) Eucla Basin and peripheral paleovalleys - ResearchGate, accessed July 25, 2025,

Contextual Support GreyLiterature

(PDF) Eucla Basin and peripheral paleovalleys - ResearchGate, accessed July 25, 2025

Preview of A-Culture: HOME, accessed July 25, 2025,

A-Culture: HOME, accessed July 25, 2025,

Contextual Support GreyLiterature

A-Culture: HOME, accessed July 25, 2025

Preview of analysis and best applicable technology be referenced instead of the existing Paragraph 7 and blue highlighted line below it. Re - Maine.gov, accessed July 25, 2025,

analysis and best applicable technology be referenced instead of the existing Paragraph 7 and blue highlighted line below it. Re - Maine.gov, accessed July 25, 2025,

Contextual Support

analysis and best applicable technology be referenced instead of the existing Paragraph 7 and blue highlighted line below it. Re - Maine.gov, accessed July 25, 2025

Preview of Aquaculture - CSIRO, accessed August 1, 2025

Aquaculture - CSIRO, accessed August 1, 2025

Contextual Support Government

Aquaculture - CSIRO, accessed July 25, 2025

Preview of Australia - Brackish Water Aquaculture, accessed July 20, 2025,

Australia - Brackish Water Aquaculture, accessed July 20, 2025,

Contextual Support GreyLiterature

SA Arid Lands Landscape Regional Summary 2022 Aquatic ...

Preview of Barramundi - NSW Department of Primary Industries, accessed July 25, 2025,

Barramundi - NSW Department of Primary Industries, accessed July 25, 2025,

Contextual Support GreyLiterature

Real time monitoring of water quality and mechanisation of pond management to boost productivity and increase profit in Barramundi (Lates calcarifer), accessed July 24, 2025,

Preview of Barramundi Farming For Beginners - Google Sites, accessed July 25, 2025,

Barramundi Farming For Beginners - Google Sites, accessed July 25, 2025,

Contextual Support GreyLiterature

Filtration rate and bioremediatory potential of the tropical blacklip rock oyster >Saccostrea >lineage J - Charles Darwin University, accessed August 1, 2025

Preview of Eucla Basin hydrogeological inventory - Product catalogue - Geoscience Australia, accessed July 25, 2025,

Eucla Basin hydrogeological inventory - Product catalogue - Geoscience Australia, accessed July 25, 2025,

Contextual Support Government

Eucla Basin hydrogeological inventory - Product catalogue - Geoscience Australia, accessed July 25, 2025,

Preview of Guide to New South Wales Karst and Caves - Environment and Heritage, accessed July 25, 2025,

Guide to New South Wales Karst and Caves - Environment and Heritage, accessed July 25, 2025,

Contextual Support

The Nullarbor deserves better protection - La Trobe University, accessed July 27, 2025

Preview of Inland Saline Aquaculture - Australian Centre for International Agricultural Research, accessed July 20, 2025,

Inland Saline Aquaculture - Australian Centre for International Agricultural Research, accessed July 20, 2025,

Contextual Support

Australia - Brackish Water Aquaculture, accessed July 25, 2025

Preview of Inland saline aquaculture - past progress, new opportunities and a ..., accessed July 25, 2025,

Inland saline aquaculture - past progress, new opportunities and a ..., accessed July 25, 2025,

Contextual Support

Saltwater success inland: Exploring the potential of saline aquaculture | FRDC, accessed July 25, 2025

Preview of Inland Saline Aquaculture | FRDC, accessed July 20, 2025,

Inland Saline Aquaculture | FRDC, accessed July 20, 2025,

Contextual Support Government

Inland Saline Aquaculture | FRDC, accessed July 25, 2025,

Preview of Nitrate determines the bacterial habitat specialization and impacts ..., accessed July 25, 2025,

Nitrate determines the bacterial habitat specialization and impacts ..., accessed July 25, 2025,

Contextual Support Journal

Palaeovalley Groundwater Resources in Arid and Semi-Arid Australia - Geoscience Australia, accessed July 25, 2025

Preview of NITRATE IN GROUNDWATER | Water Research Commission, accessed July 25, 2025,

NITRATE IN GROUNDWATER | Water Research Commission, accessed July 25, 2025,

Contextual Support Journal

NITRATE IN GROUNDWATER | Water Research Commission, accessed July 25, 2025,

Preview of Nitrate Levels in Aquaculture May be More Dangerous Than You Think - YSI, accessed July 25, 2025,

Nitrate Levels in Aquaculture May be More Dangerous Than You Think - YSI, accessed July 25, 2025,

Contextual Support GreyLiterature

Nitrate Levels in Aquaculture May be More Dangerous Than You Think - YSI, accessed July 25, 2025,

Preview of Nitrate removal in recirculating aquaculture systems for reduced water exchange rates and healthier production, accessed July 25, 2025,

Nitrate removal in recirculating aquaculture systems for reduced water exchange rates and healthier production, accessed July 25, 2025,

Contextual Support GreyLiterature

Nitrate Levels in Aquaculture May be More Dangerous Than You Think - YSI, accessed July 25, 2025

Preview of Nitrite & Nitrate in RAS Aquaculture - Reducing Risk, Improving Profits - Aquamonitrix, accessed July 25, 2025,

Nitrite & Nitrate in RAS Aquaculture - Reducing Risk, Improving Profits - Aquamonitrix, accessed July 25, 2025,

Contextual Support GreyLiterature

Nitrate removal in recirculating aquaculture systems for reduced water exchange rates and healthier production, accessed July 25, 2025

Preview of Nullarbor Plain - Wikipedia, accessed July 25, 2025,

Nullarbor Plain - Wikipedia, accessed July 25, 2025,

Contextual Support GreyLiterature

Nullarbor Plain - Wikipedia, accessed July 24, 2025

Preview of Palaeovalley Groundwater Resources in Arid and Semi-Arid Australia - Geoscience Australia, accessed July 25, 2025,

Palaeovalley Groundwater Resources in Arid and Semi-Arid Australia - Geoscience Australia, accessed July 25, 2025,

Contextual Support Journal

Eucla Basin hydrogeological inventory - Product catalogue - Geoscience Australia, accessed July 25, 2025

Preview of Recent Developments in Recirculating Aquaculture Systems: A Review - ResearchGate, accessed July 25, 2025,

Recent Developments in Recirculating Aquaculture Systems: A Review - ResearchGate, accessed July 25, 2025,

Contextual Support Journal

Recent Developments in Recirculating Aquaculture Systems: A Review - ResearchGate, accessed July 25, 2025

Preview of Recirculating aquaculture system - Wikipedia, accessed July 25, 2025,

Recirculating aquaculture system - Wikipedia, accessed July 25, 2025,

Methodology Source GreyLiterature

Inland saline aquaculture - past progress, new opportunities and a ..., accessed July 25, 2025

Preview of Recirculating Aquaculture Systems (RAS) for Cultivating Oncorhynchus mykiss and the Potential for IoT Integration: A Systematic Review and Bibliometric Analysis - MDPI, accessed July 25, 2025,

Recirculating Aquaculture Systems (RAS) for Cultivating Oncorhynchus mykiss and the Potential for IoT Integration: A Systematic Review and Bibliometric Analysis - MDPI, accessed July 25, 2025,

Contextual Support Journal

Recirculating Aquaculture Systems (RAS) for Cultivating Oncorhynchus mykiss and the Potential for IoT Integration: A Systematic Review and Bibliometric Analysis - MDPI, accessed July 25, 2025

Preview of Recirculating aquaculture systems (RAS): Environmental solution and climate change adaptation - Find an Expert - The University of Melbourne, accessed July 25, 2025,

Recirculating aquaculture systems (RAS): Environmental solution and climate change adaptation - Find an Expert - The University of Melbourne, accessed July 25, 2025,

Contextual Support Journal

Recirculating aquaculture systems (RAS): Environmental solution and climate change adaptation - Find an Expert - The University of Melbourne, accessed July 25, 2025,

Preview of Removal of nitrates from groundwater in remote indigenous settings in and Central Australia, accessed July 25, 2025,

Removal of nitrates from groundwater in remote indigenous settings in and Central Australia, accessed July 25, 2025,

Contextual Support GreyLiterature

Strategies for promoting sustainable aquaculture in arid and semi-arid areas, accessed July 25, 2025

Preview of Removal of nitrates from groundwater in remote indigenous settings in arid Central Australia - OPUS at UTS, accessed July 25, 2025,

Removal of nitrates from groundwater in remote indigenous settings in arid Central Australia - OPUS at UTS, accessed July 25, 2025,

Contextual Support Journal

NITRATE IN GROUNDWATER | Water Research Commission, accessed July 25, 2025

Preview of Saltwater success inland: Exploring the potential of saline aquaculture | FRDC

Saltwater success inland: Exploring the potential of saline aquaculture | FRDC

Contextual Support GreyLiterature

Inland Saline Aquaculture | FRDC

Preview of So You Want to Be a Fish Farmer? | The Better Fish® Barramundi by Australis Aquaculture, accessed July 25, 2025,

So You Want to Be a Fish Farmer? | The Better Fish® Barramundi by Australis Aquaculture, accessed July 25, 2025,

Contextual Support GreyLiterature

Barramundi - NSW Department of Primary Industries, accessed July 25, 2025

Preview of Strategies for promoting sustainable aquaculture in arid and semi-arid areas, accessed July 20, 2025,

Strategies for promoting sustainable aquaculture in arid and semi-arid areas, accessed July 20, 2025,

Contextual Support

Recirculating aquaculture systems (RAS): Environmental solution and climate change adaptation - Find an Expert - The University of Melbourne, accessed July 25, 2025

Preview of TERN - Australia's Terrestrial Ecosystem Research Network, accessed July 30, 2025,

TERN - Australia's Terrestrial Ecosystem Research Network, accessed July 30, 2025,

Contextual Support Government

Australia's State of the Forests Report 2018 - DAFF, accessed July 31, 2025,

Preview of The Influence of Water Nitrate Concentration Combined with Elevated Temperature on Rainbow Trout Oncorhynchus mykiss in an Experimental Aquaponic Setup - MDPI, accessed July 25, 2025,

The Influence of Water Nitrate Concentration Combined with Elevated Temperature on Rainbow Trout Oncorhynchus mykiss in an Experimental Aquaponic Setup - MDPI, accessed July 25, 2025,

Contextual Support Journal

Nitrification and Maintenance in Media Bed Aquaponics | Oklahoma State University, accessed July 25, 2025

Preview of THE WAIKERIE PROJECT - A-Culture, accessed July 25, 2025,

THE WAIKERIE PROJECT - A-Culture, accessed July 25, 2025,

Contextual Support GreyLiterature

THE WAIKERIE PROJECT - A-Culture, accessed July 25, 2025

Preview of Untitled - DBCA Library, accessed July 25, 2025,

Untitled - DBCA Library, accessed July 25, 2025,

Contextual Support Journal

Untitled - DBCA Library, accessed July 26, 2025,

Context

Region Australia
Biome Arid Karstic Woodlands & Shrublands
Land Use Aquaculture
Assessment Not Stated
Evidence Type TargetCondition

Lifecycle

Status Active
Version 1
Effective From 1 Jun 2026

Notes

No direct data exists for aquaculture in Australia's Arid Karstic Woodlands & Shrublands. The benchmark is based on operational guidelines for warm-water fish. Lower critical threshold near 20 mg/L indicates biofilter failure risk. Upper detrimental threshold is 150-200 mg/L with potential sub-lethal stress above 330 mg/L. AssessmentContext defaulted to 'Not Stated' because the source document did not state one.

Related Benchmarks

Other benchmarks in the AUS-AKW-AQU-WNI family.