The comet assay, a sensitive biomarker of water quality improvement following adoption of beneficial agricultural practices? - HTML from https://open.canada.ca/data/en/dataset/898745bb-c67d-4a4c-b924-1686232543d7

Numerous actions have been undertaken by farmers to attenuate the impact of agricultural activities on aquatic ecosystems. The identification of biomarkers that respond quickly to water quality improvement could facilitate the assessment of adopted alternative practices and help maintain mobilization among stakeholders. Here, we evaluated the potential of the Comet assay, a biomarker of genotoxic effects, using a freshwater mussel, Elliptio complanata, as a model animal. The frequency of DNA damage was assessed in hemocytes of mussels collected from a pristine habitat (MSH) and caged for 8 weeks in the Pot au Beurre River (PAB), a tributary of Lake St-Pierre (QC, Canada) impacted by agricultural activities. Pesticides and water quality parameters were also measured in surface water on a weekly basis during the caging period. Our findings suggest that the Comet assay is a sensitive tool for the early detection of changes in water toxicity following the adoption of agricultural beneficial practices.

All data are a part subject of a publication containing method details, full QA/QC, interpretation and conclusions. Citation: Gendron, A.D., Lacaze, É., Taranu, Z.E., Gouge, R., Larbi-Youcef, Y., Houde, M., André, C., Gagné, F., Triffault-Bouchet, G. and Giroux, I. (2023), The Comet Assay, a Sensitive Biomarker of Water Quality Improvement Following Adoption of Beneficial Agricultural Practices?. Environ Toxicol Chem. doi.org/10.1002/etc.5711

Supplemental Information

The St. Lawrence Action Plan (SLAP) 2011 to 2026 (see http://planstlaurent.qc.ca/en/home.html) is the latest Canada-Quebec Agreement on the St. Lawrence and builds on the four previous agreements implemented since 1988.

The agreement aims to conserve and enhance the St. Lawrence. It is based on strong collaboration and the pooling of resources and expertise between the governments of Canada and Quebec. As part of their respective responsibilities for the management of the St. Lawrence basin, these two governments recognize the need for close cooperation to tackle the environmental challenges facing this important ecosystem. Other partners are also joining in this initiative, including local organizations, environmental groups, research centres, and universities.

For more information on SLAP, please visit https://www.canada.ca/en/environment-climate-change/services/environmental-funding/ecosystem-initiatives/st-lawrence-action-plan.html

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Dernière modification de la donnée	16 janvier 2026
Dernière modification de la métadonnée	16 janvier 2026
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