Effects of Herbicides on Algae Growth and Photosynthesis, Laboratory Experiments 2019

Laboratory experiments conducted during 2019 measure the effects of three herbicides on the green algae Raphidocelis subcapitata. The dataset contains results on growth rates from cell density data and photosynthetic efficiency measured as effective quantum yield. It was produced by the NESP TWQ 3.1.5 project involving AIMS and JCU.

Use Cases

• Modeling dose-response relationships for herbicides based on growth inhibition data.
• Comparing toxicity of Photosystem II and alternative herbicides on microalgae.
• Assessing environmental risk of specific herbicides (diuron, haloxyfop-p-methyl, imazapic) detected in coastal waters.
• Calibrating ecotoxicology protocols for regulatory purposes using standard laboratory methods.

Strengths

• Standardized 72-hour exposure bioassays following established ecotoxicology protocols.
• Measurements include both growth rates (cell density) and photosynthetic efficiency (effective quantum yield).
• Herbicide selection based on detection in the Great Barrier Reef catchment area, as cited in publications.

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 temporal bias inherent to the 2019 laboratory experiments.

Provenance

Source

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

Collection Method

Laboratory experiments with Raphidocelis subcapitata exposed to herbicide concentrations; growth measured via cell counts, photosynthesis via PAM fluorometry.

Time Range

2019

Freshness

Last updated 2026-07-10 18:45:46.471533; freshness should be verified.

Geography

Great Barrier Reef catchment area (Australia), though experiments were laboratory-based.