NESP TWQ 3.1.5, AIMS and JCU data shows the effects of herbicides detected in Great Barrier Reef catchments on the growth rates of the stonewort Ceratophyllum demersum. The dataset is based on 7-day laboratory exposure experiments conducted in 2019, measuring stem length and biomass. The project aimed to develop standard ecotoxicology protocols for non-PSII herbicides to improve risk assessment for aquatic macrophytes.
Use Cases
- Modeling dose-response relationships for herbicides based on described growth rate measurements.
- Comparing toxicity of haloxyfop-p-methyl, imazapic, and triclopyr on aquatic macrophytes as described in the methods.
- Calibrating ecotoxicology risk assessment frameworks for non-PSII herbicides using the standard protocols developed.
- Benchmarking herbicide effects on Ceratophyllum demersum against other aquatic taxa as mentioned in the project aims.
Strengths
- Experimental design includes control and solvent control treatments, supporting test validity.
- Growth measurements (stem length and biomass) were taken at standardized time points (Day 0 and Day 7).
- Specific herbicide concentrations and laboratory conditions (e.g., 26.6 ± 0.5 °C, 12:12 light:dark cycle) are documented.
- Herbicide selection is based on prior detection in Great Barrier Reef coastal waters, linking to a real-world context.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- Data may reflect geographic bias inherent to data_gov_au, focusing on the Great Barrier Reef catchment.
Provenance
- Source
- Australian Ocean Data Network, associated with NESP TWQ 3.1.5, AIMS and JCU.
- Collection Method
- Laboratory growth bioassays over 7-day exposures, with plants photographed and biomass weighed.
- Time Range
- Experiments conducted in 2019.
- Freshness
- Last updated 2026-07-10 16:26:54.464549; freshness should be verified.
- Geography
- Great Barrier Reef catchment area, Australia.