eDNA Biodiversity Detection
Benchmark Value
Scoring Curve
The scoring engine could not generate a curve for this benchmark context. The primary form is CompositeFramework, but the benchmark data may be missing required fields (e.g., optimal range bounds for an OptimalRange benchmark). This is typically a data quality issue in the benchmark pipeline.
Evidence & Context
A lower critical threshold for biodiversity is not merely a low number of species, but rather a state where the ecosystem has lost its capacity to withstand predictable environmental stress. The data from Parikh et al. (2024) provides a clear, evidence-based definition of this state.
Significant seasonal decline in native fish taxa richness detected by eDNA metabarcoding indicating loss of ecosystem resilience.
This benchmark indicates a significant seasonal decline in native fish taxa during the wet season, signaling degraded ecosystem resilience in agriculturally-impacted estuaries.
This threshold is based on observed significant declines in fish taxa richness during the wet season in agriculturally-impacted estuaries, indicating loss of resilience and ecosystem function.
Sources (1)
Environmental DNA highlights the influence of salinity and agricultural run-off on coastal fish assemblages in the Great Barrier Reef region - PubMed
View SourceSupporting Sources (10)
Additional references from the underlying research that informed this benchmark.
www.csiro.au
View SourceEnvironmental DNA highlights the influence of salinity and agricultural run-off on coastal fish assemblages in the Great Barrier - Macquarie University
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Environmental DNA highlights the influence of salinity and agricultural run-off on coastal fish assemblages in the Great Barrier Reef region - Macquarie University
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SEA-MES coupled eDNA experiment – Southeast Australian Marine Ecosystem Survey, accessed August 17, 2025
View SourceGrazing land management - FutureBeef
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Geology | Norfolk Island National Park | Parks Australia
View SourceE528M Grazing management that protects sensitive areas from gully erosion - Natural Resources Conservation Service, accessed July 30, 2025
View SourceProject Pioneer, accessed July 30, 2025
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Reef water quality: Why floods and cyclones cause pollution levels to spike
View SourceEvidence of Large-Scale Chronic Eutrophication in the Great Barrier Reef: Quantification of Chlorophyll a Thresholds for Sustaining Coral Reef Communities - PubMed Central, accessed August 1, 2025
View Source