Herbicide Effects on Chlorella Microalgae Growth and Photosynthesis, 2017-2019

Laboratory experimental data on the effects of eight herbicides on the growth and photosynthetic efficiency of the microalgae Chlorella sp. The dataset was generated by the NESP TWQ 3.1.5 project, AIMS, and JCU from 2017 to 2019. It includes measurements of cell density and effective quantum yield from 72-hour exposure bioassays.

Use Cases

• Modeling dose-response relationships for herbicides based on growth inhibition data.
• Comparing the toxicity of Photosystem II (PSII) and alternative herbicide classes on microalgae.
• Calibrating ecotoxicology risk assessment frameworks with laboratory-derived toxicity endpoints.
• Investigating the correlation between growth rate inhibition and photosynthetic efficiency impairment.

Strengths

• Data covers eight specific herbicides (e.g., bromacil, diuron) with analytical grade purity (HPLC >= 98%).
• Experiments were conducted under controlled laboratory conditions (26 ± 2°C, 12:12 light:dark cycle).
• Methods are described in detail, including culture maintenance and exposure protocols over a 72-hour period.

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count is unknown, which may limit suitability assessment.
• Data is from controlled laboratory experiments; ecological relevance for field conditions may require further validation.

Provenance

Source

Australian Ocean Data Network, NESP TWQ 3.1.5, AIMS and JCU.

Collection Method

Laboratory bioassays with Chlorella sp. exposed to herbicide concentrations, measuring cell density and chlorophyll fluorescence.

Time Range

2017-2019

Freshness

Last updated 2026-07-10 13:44:06.498255; freshness should be verified.

Geography

Focus on herbicides detected in the Great Barrier Reef catchment area; experiments conducted in laboratory settings.