Laboratory experiments from 2019 measured the effects of the herbicide imazapic on the growth rate of the cyanobacteria Microcystis aeruginosa over 72-hour exposures. The data was generated by a project under the NESP TWQ 3.1.5 program, involving AIMS and JCU, to develop standard ecotoxicology protocols. The work aims to improve risk assessment for herbicides detected in the Great Barrier Reef catchment area.
Use Cases
- Modeling dose-response relationships for imazapic based on cell density measurements over time.
- Comparing herbicide toxicity across different aquatic taxa using standardized bioassay data.
- Informing water quality guidelines and regulatory decisions for the Great Barrier Reef catchment.
- Studying the physiological response of cyanobacteria to Photosystem II (PSII) inhibiting herbicides.
Strengths
- Data is derived from controlled laboratory experiments with specified temperature (26.6 ± 0.5 °C) and light cycle (12:12 h) conditions.
- The experimental design includes control and solvent control treatments to validate test protocols.
- The herbicide exposure period and measurement endpoint (72-hour growth rate) are clearly defined.
Limitations
- Column-level documentation is absent; field semantics must be inferred after download.
- Row count is unknown, which may limit suitability assessment.
- The dataset description is detailed but the actual data files (PNG, HTML) suggest the primary data may be embedded in reports or figures.
Provenance
- Source
- Australian Ocean Data Network, associated with the NESP TWQ 3.1.5 project, AIMS, and JCU.
- Collection Method
- Laboratory bioassays where Microcystis aeruginosa cultures were exposed to imazapic concentrations, with cell densities counted manually using a haemocytometer.
- Time Range
- Experiments conducted in 2019.
- Freshness
- Last updated 2026-07-10 20:23:54.963580; freshness should be verified
- Geography
- Research is relevant to the Great Barrier Reef catchment area; organisms and experiments were laboratory-based.