Isabelle Lavoie, Institut national de la recherche scientifique

Research

biofilms bioindicators/biomarkers biomonitoring diatom assemblages eutrophication fatty acids food web invertebrate assemblages

Latest papers

Interspecific interactions modulate atrazine and S-metolachlor toxicity on aquatic microbial autotrophs.
Ecotoxicology and environmental safety · 2026
Use of periphyton and macroinvertebrates to assess pesticide contamination in agricultural streams.
Environmental monitoring and assessment · 2026 · senior author
Charting a course for freshwater biomonitoring: The grand challenges identified by the global scientific community.
Ecological indicators · 2025

All 13 publications

Latest funding

Mise à jour du laboratoire multidisciplinaire de microscopie électronique de l'INRS
NSERC · 2020 · Co-investigator
$120,374
Basal food resource quality and trophic energy flow across the biofilm-consumer interface: aquatic ecosystem response to environmental stressors
NSERC · 2019 · Principal investigator
$196,000
Basal food resource quality and trophic energy flow across the biofilm-consumer interface: aquatic ecosystem response to environmental stressors
NSERC · 2019 · Principal investigator
$12,500

All 5 grants and awards

13 publications.

01

Interspecific interactions modulate atrazine and S-metolachlor toxicity on aquatic microbial autotrophs.

Malbezin L, Mazzella N, Boutry S, Lavoie I, Morin S

Ecotoxicology and environmental safety2026

DOI: 10.1016/j.ecoenv.2026.120340 PMID: 42259116

02

Use of periphyton and macroinvertebrates to assess pesticide contamination in agricultural streams.

Malbezin L, Moïse S, Mainville-Gamache J, Morin S, Comte J, Lavoie I

Environmental monitoring and assessment2026Senior author

DOI: 10.1007/s10661-025-14947-x PMID: 41498988

03

Charting a course for freshwater biomonitoring: The grand challenges identified by the global scientific community.

Yates AG, Brua RB, Culp JM, Aguiar FC, Ajayan AP, Aspin T, Bundschuh M, Calderón MR, Csabai Z, Dallas H, Datry T, Silva KD, Dzavi J, England J, Erős T, Gebler D, Goedkoop W, González-Ferreras AM, Hamilton DP, Hughes RM, Juen L, Kefford BJ, Koroiva R, Krynak EM, Lavoie I, Lento J, Ligeiro R, Martins RT, Masese FO, Montag LFA, Musetta-Lambert J, Painter KJ, Poikane S, Rico A, Ruaro R, Sabater S, Michelan TS, Schoelynck J, Smucker NJ, Stanković I, Stubbington R, van Deventer H, van Niekerk L, Van den Brink PJ, Várbíró G, Wanderi EW

Ecological indicators2025

DOI: 10.1016/j.ecolind.2025.113646 PMID: 40672111

04

Interspecific differences in the response of autotrophic microorganisms to atrazine and S-metolachlor exposure.

Malbezin L, Mazzella N, Boutry S, Lavoie I, Morin S

Ecotoxicology and environmental safety2025

DOI: 10.1016/j.ecoenv.2024.117616 PMID: 39799914

05

Effects of atrazine and S-metolachlor on stream periphyton taxonomic and fatty acid compositions.

Malbezin L, Morin S, Lavoie I

Ecotoxicology (London, England)2024Senior author

DOI: 10.1007/s10646-024-02738-y PMID: 38386230

06

Episodic loadings of phosphorus influence growth and composition of benthic algae communities in artificial stream mesocosms.

Pearce NJT, Thomas KE, Lavoie I, Chambers PA, Yates AG

Water research2020

DOI: 10.1016/j.watres.2020.116139 PMID: 32823192

07

Influence of Temperature and Nickel on Algal Biofilm Fatty Acid Composition.

Fadhlaoui M, Laderriere V, Lavoie I, Fortin C

Environmental toxicology and chemistry2020

DOI: 10.1002/etc.4741 PMID: 32367541

08

Towards a multi-bioassay-based index for toxicity assessment of fluvial waters.

Pandey LK, Lavoie I, Morin S, Depuydt S, Lyu J, Lee H, Jung J, Yeom DH, Han T, Park J

Environmental monitoring and assessment2019

DOI: 10.1007/s10661-019-7234-5 PMID: 30693376

09

Morphological, physiological and molecular responses of Nitzschia palea under cadmium stress.

Kim Tiam S, Lavoie I, Doose C, Hamilton PB, Fortin C

Ecotoxicology (London, England)2018

DOI: 10.1007/s10646-018-1945-1 PMID: 29797171

10

Using biofilms for monitoring metal contamination in lotic ecosystems: The protective effects of hardness and pH on metal bioaccumulation.

Leguay S, Lavoie I, Levy JL, Fortin C

Environmental toxicology and chemistry2016

DOI: 10.1002/etc.3292 PMID: 26510090

Mise à jour du laboratoire multidisciplinaire de microscopie électronique de l'INRS

Co-investigatorNSERC2020Research Tools and Instruments

Principal investigators: Francus, Pierre

$120,374

Basal food resource quality and trophic energy flow across the biofilm-consumer interface: aquatic ecosystem response to environmental stressors

Principal investigatorNSERC2019Discovery Grants Program - Individual

Principal investigators: Lavoie, Isabelle

Keywords: eutrophication; biomonitoring; bioindicators/biomarkers; food web; biofilms; diatom assemblages; invertebrate assemblages; fatty acids; streams; land use

$196,000

Basal food resource quality and trophic energy flow across the biofilm-consumer interface: aquatic ecosystem response to environmental stressors

Principal investigatorNSERC2019Discovery Launch Supplement

Principal investigators: Lavoie, Isabelle

$12,500

Improving management and protection of drinking water supplies and environmental sustainability in urban settings

Principal investigatorNSERC2018Collaborative Research and Development Grants

Principal investigators: Lavoie, Isabelle

$150,000

Scenarios of freshwater biodiversity and ecosystem services in a changing Arctic

Co-investigatorNSERC2018Belmont Forum / BiodivERsA Scenarios of Biodiversity and Ecosystems Services

Principal investigators: Culp, Joseph

$203,490

From CIHR, NSERC and SSHRC funding decisions: CIHR since 2008, NSERC since 1991 and SSHRC since 1998, including their latest published competition results.

Frequent collaborators

Claude Fortin

Eau Terre et Environnement, Centre

6 shared papers, latest 2020

Write to this professor

A short, specific email works best. This draft uses one of their recent papers; replace the parts in brackets with your own details before sending.

Applying for

Paper to mentionMention their NSERC grant from 2019

Subject: Prospective PhD student: biofilms Dear Professor Lavoie, My name is [your name], and I am a [your current degree or role] at [your institution]. I am applying for a PhD position starting in [term and year]. I read your paper "Interspecific interactions modulate atrazine and S-metolachlor toxicity on aquatic microbial autotrophs." (2026), and it connects closely to my own work on [your research topic]. [One or two sentences on what you did and what you learned.] I also saw your NSERC-funded project "Basal food resource quality and trophic energy flow across the biofilm-consumer interface: aquatic ecosystem response to environmental stressors" (2019), and I would be glad to contribute to work in that direction. Are you accepting new PhD students for [term and year]? I have attached my CV and transcripts, and I would be glad to talk at a time that suits you. Thank you for your time. Kind regards, [your name]